p-ISSN 2338-2791 (cetak) e-ISSN 2621-1440 (online) FROPIL (Forum Profesional Teknik Sipil) is a scientific journal of the Department of Civil Engineering, Bangka Belitung University, which is a medium of scientific communication to disseminate information and development of knowledge for researchers and practitioners in the field of Civil Engineering.
Jurusan Teknik Sipil Universitas Bangka Belitung
Reviu Desain Struktur Bawah Bangunan Gedung: Studi Kasus Pengecekan Kekuatan Pondasi Tapak Sekolah Dasar Negeri (SDN) 12 Muntei, Mentawai
Muntei is one of the villages in South Siberut, Mentawai Island Regency. The Mentawai Island located in West Sumatera and are outside the territory of the island of Sumatera, including one of the outermost islands in this Province. Mentawai is one of the areas in West Sumatera that is frequently shaken by earthquake. So, the implementation of earthquake resistant building standars is an important factor that must be considered in efforts to reduce disaster risk, considering that West Sumatera is one of the areas with a high earthquake risk. The implementation of earthquake resistant building standards should have started during the planning process. As one of the outermost province Mentawai is also lagging behind in infrastructure development, so sustainable development needs to be carried out to make Mentawai come out of being behind compare to other district in the West Sumatera. The review design of the site foundation of the SDN 12 Muntei school building aims to ensure the carrying capacity of the foundation. To obtain maximum axial value of the building, modeling was carried out using the sap2000 application. From the modeling and data analysis can be concluded that the foundation does not meet the requirements and is unable to carry the maximum load of the building. The allowable capacity of foundation permit for the SDN 12 Muntei is 12.96 Tonenes, while the maximum load on the building is 34.57 tonnes. The result of this analysis show that the foundation is not good and must be repaired.
Copyright (c) 2023 Winda Fitria, Merley Misriani, Elvi Roza Syofyan
PEMANFAATAN LIMBAH CANGKANG KELAPA SAWIT PADA CAMPURAN BETON RINGAN
Various kinds of additives have often been carried out in an effort to improve the quality of concrete so that it is higher by utilizing alternative materials that are easily available so that manufacture of concrete becomes economical. This research is the utilization of waste Shell from palm oil in the combination of light congrete where the palm oil shell is used as the substitute of rough agregat both for the half or the whole in the purpose to get the effect of the palm oil shell in making light congrete, rough agregat with the palm oil shell expected with the cultivation of palm oil waste can increase the press power of aggregat. The changing process of palm oil Shell is by counting the volume of rough agregat. The percentage variation of palm oil Shell toward the volume of rough agregat in the combination is as follows 25 percent of palm oil Shell, 50 percent of palm oil shell 75 percent of palm oil Shell and 100 percen of palm oil Shell. From the results of testing the compressive strength of concrete at the age of 28 days obtained an average of 23.86 Mpa. While the results of testing the compressive strength of concrete at the age of 28 days using palm shells at variations of 25%, 50%, 75%, and 100% have an average compressive strength value of 14.9 MPa, 11.6 MPa, 4.25 MPa, and 2.73 MPa.
coarse aggregate; concrete; palm oil shell.
Copyright (c) 2023 Indrayani Indrayani .
EVALUASI TEBAL PERKERASAN PADA RUNWAY BANDARA SYUKURAN AMINUDDIN AMIR LUWUK BERDASARKAN CUMULATIVE DAMAGE FAILURE
Air transportation is a mode of transportation still quite in demand, although recently there has been a decline in passengers. Syukur Aminuddin Amir Luwuk Airport belongs to the category of Class II Domestic Airport with airside facilities, a Runway with a size of 2,250 m x 45 m, a Taxiway 60 m x 18 m, and an Apron with a size of 315 x 15 m. The operation of several types of aircraft with a larger capacity occurs due to the increase in the number of passengers every year. An increase in the number of passengers will certainly have an impact on the number of aircraft movements, it is necessary to analyze how to determine the thickness of the runway pavement which is influenced by the type of aircraft that will operate based on the subgrade conditions that are there using the FAARFIELD method. The results of the evaluation on the thickness of the runway pavement which has a CBR value of 15%, with a pavement thickness of 215 mm for HMA Surface, 152 mm for Crushed Aggregate, and 200 mm for Uncrushed Aggregate with a service life of 20 years in 2040 it was found that the Subgrade CDF value was 0.00 and the HMA CDF of 0.86. The test results with FAARFIELD software change the pavement thickness for the base layer to 152 mm (minimum value) from the value of 100 mm. So planning the thickness of the pavement requires an additional layer of 52 mm.
runway, flexible pavement, pavement thickness, FAARFIELD
EVALUASI MANAJEMEN PEMELIHARAAN ARSITEKTUR, MEKANIKAL, DAN ELEKTRIKAL PADA GEDUNG HOTEL X DI KOTA PADANG
Based on the results of field inspections, damage to architectural, mechanical, and electrical components was found in several rooms of Hotel X in the city of Padang, West Sumatra, Indonesia. Lack of maintenance is one of the causes of damage to hotel building components. Good maintenance management can reduce repair activities that cost more due to injury. This study aims to evaluate the maintenance management of hotel buildings that have been carried out so far. In this study, researchers conducted surveys and interviews about hotel maintenance management. The survey and discussions focused on the hotel's Standard Operating Procedures (SOPs) for each component reviewed. After obtaining the hotel SOP, the researcher analyzed it by comparing the hotel SOP with the Minister of Public Works Regulation No.24/PRT/M/2008 as a standard in the implementation of building maintenance. From the results of the conformity calculation carried out, the conformity results in each component are architectural components with an average conformity result of 72.38%, mechanical parts with an average conformity result of 88.89%, and electrical components with an average conformity result of 77.78% of a maximum weight of 100%. This percentage of conformity weight shows that the hotel's maintenance management concerning the Ministerial Regulation is quite good. Still, to further optimize maintenance activities, it is necessary to plan better standard operating procedures, cost planning, and maintenance schedules to support implementing Hotel X building maintenance in the future.
evaluation, maintenance management, hotel building, conformity weight
Copyright (c) 2023 Hanif SUFRAN, Muhammad Ilham MAULANA, Rahmi HIDAYATI, Merley MISRIANI, Jumyetti
ANALISA PERBANDINGAN BIAYA DAN WAKTU PELAKSANAAN DINDING PENAHAN TANAH SECANT PILE DENGAN DIAPHRAGM WALL PADA PROYEK REVITALISASI TAMAN ISMAIL MARZUKI
The construction of a basement for parking lots requires a soil retaining wall structure that can withstand its own load and the load around it and must be safe against sliding, rolling and collapse. The choice of soil retaining wall type is an important decision in development projects because it affects the cost, quality and time of implementation. Secant pile soil retaining wall is a type of soil retaining wall using the method of arranging concrete poles that are arranged intersectingly to withstand soil thrust. Diaphragm wall is a type of soil retaining wall that uses reinforced concrete to withstand the lateral force of the soil made by filling concrete that has been made first and filled with bentonite slurry as a stabilizer of the excavated wall, then filled with concrete after the reinforcement cage is installed. Later it will be compared with the diaphragm wall in terms of cost and implementation time. The data needed in this analysis are shop drawing secant pile, technical specifications, unit price of work, and detailed geotechnical design engineering. From the results of the study, it was found that the cost of secant pile work amounted to Rp. 24,560,508,232.00 with an implementation time of 214 working days. As for the diaphragm wall, a work fee of Rp.30,059,442,748.00 was obtained with an implementation time of 246 working days. The application of secant pile is 18.29% cheaper and 32 days faster than diaphragm wall.
retaining wall, secant pile, diaphragm wall, cost, time
Copyright (c) 2023 Silvianengsih Silvianengsih, Merley Misriani, Monika Natalia, Gheniy Ihdini, Jamilatul Fadila
Analysis of the Characteristics and Level of Side Friction of the D.I. Panjaitan Road Section of Kendari City
Progress inland transportation has not escaped the emergence of new problems from environmental aspects, accidents, and congestion. Traffic congestion occurs due to the imbalance between the growth of vehicles with improved infrastructure, rapid urbanization, low of discipline of road users, and side friction. Land use, type of road, and size of the city result in the characteristics and level of side friction. From these things, research on the analysis of characteristics and level of side friction on the D.I. Panjaitan Road section of Kendari City became interesting. The purpose of this study is to identify the characteristics of side friction and determine the level of side friction. From research and analysis, it was found that side friction that occurs at three observation points is generally caused by the type of activity of stopped vehicles, parking on street, and vehicles come into and exit from the parking area and coming into or leaving the neighborhood. Based on side friction frequency data at three observation points showed the lowest Side Friction Frequency (SFF) of 33.5 and 39.4 events at point T3, then 67.6 and 64.4 at point T2, and the highest at point T3 70.5 and 59.9 events. The data shows that the side friction class on the road is categorized is very low. The low side friction at the observation location is caused by the observation time carried out during the decline in community activities due to the implementation of health protocols due to the increase in Covid-19 cases
Copyright (c) 2023 Andi Ahdan Amir, Muhammad Arsyad, Sukman Sukman, Diansar Diansar
SPATIAL MODEL OF SOIL VULNERABILITY OF BENGKULU COASTAL AREAS DUE TO LIQUEFACTION
This study evaluates the susceptibility of soil liquefaction in the coastal area of Bengkulu City. The evaluation was carried out using a probability approach that includes the contribution of all seismic hazard levels that potentially trigger liquefaction, interpreted by the magnitude and maximum acceleration parameters. The soil strength parameters were collected from 26 CPT points spread along the coastal area of Bengkulu City. This evaluation implements the results of the Probabilistic Seismic Hazard Analysis (PSHA) for Bengkulu City, whereas the dominant earthquake source comes from the subduction zone of Sumatra Island. The factor of safety and the probability for each return period of liquefaction. The results of the evaluation in the form of a safety factor and probability in each return period of liquefaction are presented by a spatial model. The results show that in the return period of 475 years, the soil layer to a depth of 1 m is unsafe against liquefaction (the safety factor is less than 1) with a probability value of almost 100%. This indicates that the soil condition of the coastal area of Bengkulu City is very vulnerable to liquefaction during an earthquake. Therefore, planning the structure of houses and roads with a foundation depth of more than 1 m should be recommended to reduce potential damage due to liquefaction.
susceptibility of soil liquefaction, coastal area, Cone Penetration Test (CPT), spatial model
Copyright (c) 2023 Rena Misliniyati, Elita Amrina
ANALISIS DAN PERANCANGAN CAMPURAN BETON MENGGUNAKAN AGREGAT DARI QUARRY NOEMUTI KABUPATEN TTU
The selection of local materials in the manufacture of concrete always sought to be used for the convenience of the manufacturing process and the availability of materials. The local material must refer to the terms and conditions that meet the achievement of the expected concrete quality. In this study, materials originating from the Noemuti Quarry, TTU Regency, namely fine aggregate and coarse aggregate, were used as concrete constituent materials with a planned compressive strength target of 25 MPa. Cylindrical specimens with a diameter of 15 cm and a height of 30 cm were made and treated for testing to the compressive strength of concrete. The results of the material characteristics test showed that the fine and coarse aggregates fulfilled the terms and conditions of concrete constituents. The results of the unit weight test show that the concrete is included in the normal concrete category because the unit weight obtained ranges from 2200 – 2500 kg/m³. The result for the compressive strength test of the concrete, aged 7 days, obtained a compressive strength of 22.65 MPa. For ages 21 days, the compressive strength of concrete is 25.42 MPa, and for ages 28 days, it reaches 26.67 MPa. Thus, the aggregate from the Noemuti Quarry, TTU Regency, both fine and coarse aggregate, is suitable for making normal concrete with a compressive strength of 25 MPa.
Concrete, mix design, compressive strength, aggregate, noemuti quarry
Copyright (c) 2023 Jusuf Wilson Meynerd Rafael, Koilal Alokabel, Abdul SYkur Hadi Suwito, Alva Yuventus Lukas
IMPLEMENTATION STUDY OF CONSTRUCTION SAFETY MANAGEMENT SYSTEM (SMKK) FOR CONTRACTORS IN BANDAR LAMPUNG
The Construction Safety Management System (SMKK) reduces work accident rates in the construction industry. Data grouping on construction companies implementing SMKK can provide information regarding its implementation to small and medium contractors in Bandar Lampung. This research uses a quantitative method through a questionnaire. It is statistically processed to obtain the percentage of SMKK implementation and a qualitative method by reviewing based on the Ministerial Regulation of Public Works and Housing Number 10 of 2021, other regulations, and previous research. SMKK contains several indicators: leadership and labor participation, construction safety planning, construction safety support, construction safety operations, and performance evaluation. Evaluation of the implementation of SMKK for small and medium contractors in Bandar Lampung shows that, on average, 49.1% of all indicators still need to be adequately implemented for small contractors. Meanwhile, an average of 61.7% for medium-sized contractors indicates that all indicators have been appropriately implemented. The outcome of this study was concluded with the recommendation that small and medium contractors should conduct SMKK training socialization to increase workers's knowledge, skills, and competencies in implementing SMKK in the construction field.
Copyright (c) 2023 Elian Zhafira, Andry Yuliyanto, Arif Rahman Hakim Sitepu, Indi Rezki Uli Simanjuntak, Tera Melya Patrice Sihombing, Kirtinanda P., Andi S.
Flood Analysis Using GIS and HEC- RAS Applications in Batang Tapakis Padang Pariaman District
Kabupaten Padang Pariaman memiliki beberapa sungai besar salah satunya sungai Batang Tapakis. Penelitian mengenai Batang Tapakis sangat jarang diteliti. Berikut dokumentasi Batang Tapakis tepatnya di Jembatan Tiram, Jalan Syekh Burhanuddin, Nagari Tapakis, Kecamatan Ulakan Tapakis, Kabupaten Padang Pariaman, Sumatera Barat. Pada saat Rabu, 24 Januari 2023 terjadi banjir pada Korong Kasai Nagari Tapakis yang menyebabkan 1.200 KK mengungsi. Ketinggian banjir diperkirakan setinggi 80 cm. Oleh sebab itu dalam kajian ini penelitian menggunakan aplikasi HEC-RAS dan GIS untuk menampilkan sebaran banjir dan tinggi muka air banjir.Penelitian ini dilakukan dengan menggunakan data primer, sekunder dan data DEM yang diunduh dari DEMNAS . Penggunaan aplikasi GIS yaitu Global Mapper berfungsi untuk mengubah data DEM yang berformat GeoTiff menjadi prj agar dapat diolah ke dalam HEC-RAS. Pada aplikasi HEC-RAS terdapat tools RAS Mapper yang berfungsi menggambarkan hasil sebaran banjir dan tinggi banjir. Dari hasil pemanfaatan data DEM menggunakan HEC-RAS dan GIS pada Batang Tapakis dapat menampilkan gambaran genangan pada Korong Tapakis dan tinggi banjir antara 70-80 cm yang sesuai dengan banjir yang terjadi pada tanggal 24 Januari 2023 setinggi 80 cm.
Copyright (c) 2023 Elvi Roza Sofyan, Winda Fitria, Bambang Istijono, Yosa Anggia Rahmi, Fadillah Rasyid
Effect of Aggregate Characteristics on The Compressive Strength of High Strength Concrete
The aggregate's quality, geology, geography, climatic conditions, and the technique used to manufacture aggregate all have an effect on the quality of high-strength concrete. In this study, the characteristics of the fine and coarse aggregate from the three sources the Jeneberang, Maros, and Pangkajene rivers—were examined, as well as their effects on the compressive strength of high-strength concrete. The research was conducted in stages, which included the testing of coarse and fine aggregate characteristics, composition of concrete, creat of concrete specimens, compressive strength test, and analysis of aggregate characteristics effect on the compressive strength of high-strength concrete. The results showed that that the fine aggregate characteristics of the Jeneberang River as a whole are better than those of the Maros River and Pangkajene River. While the coarse aggregate properties of the main Lekopancing River are greater than the coarse aggregate characteristics of the Pangkajene River and Jeneberang River. The compressive strength varies based on the fine and coarse aggregates used. Results of the linear regression study of the correlation of aggregate features to fine aggregate compressive strength showed a considerable influence contribution; Organic content 99.6%, water content 86.7%, specific gravity 98.2%, volume weight 98%, absorption 98.8%, and fine modulus 90.3%. Sludge content has an approximate 7% impact. Similarly, the coarse aggregate of parameters showed effect: wear 99.8%, water content 99.8%, specific gravity 99.2%, volume weight 92.6%, and absorption 76.2%, with exception of sludge content, which is only 33.2% 33.2%, and fine modulus 29.8%.
Copyright (c) 2023 Andi Ahdan Amir, Rudy Djamaluddin, Herman Parung
The Effect of Stiffness Degradation of Compressive Diagonal Member on the Performance of a Steel Truss Bridge with a Span of 60m.
A bridge is an infrastructure built solidly and safely to serve community activities well. In the course of its development, some steel truss bridges suffer a problem which is often caused by a traffic accident, resulting in a degradation of a bridge element. The missing of member can change the structure that will lead to the instability of a bridge if the assumption of joint used is pinned. In contrast, the bridge structure will function as a frame even when an element is missing if the assumption of joint used fixed. This research aimed to find out the effect of stiffness degradation of compressive diagonal member on the performance of a steel truss bridge. To find out the effect , Class A steel truss bridge with a span of 60m constructed by PT. Wiratama GlobalIndo Jaya was selected. The bridge was designed using the SAP 2000 V.18 application with two treatments, namely the pinned the fixed joint. There were three compressive diagonal members that changed its stiffness degradation of 20%, 40%, 60%, and 80% including non-degradation as control. Findings reveal that member number 3 was the most crucial element that reached 4.307% of deflection and 8.65% of stress in the pinned joint. Furthermore, the results showed that the member obtained 4.230% of deflection and 17.87% of stress in the fixed joint. These results signified that the fixed joint provided a lower deflection than the pinned joint. Conversely, the stress on the fixed joint was greater than on the pinned joint
Copyright (c) 2023 Mohammad Hamdani Ismail Patawe, Kasmat Saleh Nur, Mirzan Gani
ANALISIS PENGARUH PENAMBAHAN SIKAMENT-LN DENGAN VARIASI PERSENTASE TERHADAP NILAI SLUMP DAN KUAT TEKAN BETON BERDASARKAN METODE PERAWATAN BETON
Concrete is in great demand because it has good compressive strength. The compressive strength of the resulting concrete is sometimes smaller than the planned compressive strength. Many efforts have been made to fix these problems, one of which is by adding additional materials. In addition to additives, the implementation process of making concrete also have an effect. One of the implementation processes is concrete treatment. In this study, the added material used was Sikament-LN with variations of 0%, 1%, and 2% of the cement weight. The treatment method used is soaking in water and wrapping plastic. Mix planning using the ACI method. The manufacture and testing of test objects is carried out at the Structural Laboratory, Department of Civil Engineering, Faculty of Engineering, Tidar University. The results of the research on the compressive strength of concrete with variations of Sikament-LN 0%, 1%, and 2% by immersing in water were 19.63 MPa, 25.10 MPa, and 26.16 MPa. The compressive strength of concrete with variations of Sikament-LN 0%, 1%, and 2% with plastic wrapping method was 23.43 MPa, 23.16 MPa, and 27.80 MPa. This study concluded that the highest compressive strength of concrete was obtained with the addition of Sikament-LN 2% and the effective method of treating concrete used was the method of immersing in water because the compressive strength of concrete was higher than the plastic wrap treatment method. Key words: concrete, compressive strength, treatment, sikament-LN
concrete, compressive strength, treatment, sikament-LN
MANAJEMEN BAJA TULANGAN DENGAN METODE JUST IN TIME DENGAN KOMBINASI BAR BENDING SCHEDULE (STUDI KASUS PROYEK PEMBANGUNAN GEDUNG X PROVINSI JAWA BARAT)
The application of material management, especially reinforcing steel is very important because it can determine the success of a construction project. This study uses data on the X building construction project such as DED, schedule, and logistics data. The purpose of this study was to analyze the application of reinforcing steel management using the Just In Time method. In calculating the quantity of reinforcing steel in this study, assisted by the Bar Bending Schedule. The results of the analysis obtained the quantity of reinforcing steel for the 3rd floor is for D10 as many as 5888 bars, D13 as many as 539 rods, D16 as many as 2176 rods, D19 as many as 1363 rods, D22 as many as 772 rods, and D25 as many as 51 rods. As for the 4th floor, there are 5740 bars of D10 steel, 525 bars of D13, 2012 of D16, 1359 of D19 88, 732 of D22, and 49 of D25. After calculating the cost, we get the cost of reinforcing steel for the 3rd floor is Rp1,380,376,857.80 and for the 4th floor is Rp1,333,301,299.20. This study concludes that the Just In Time method can be applied in reinforcing steel management which is adapted to the characteristics of the X building project. In addition, the use of a bar bending schedule is very effective and efficient compared to the conventional method of planning the use of the remaining pieces of reinforcing steel so that it can be profitable in terms of time.
Material management, reinforcement steel, just in time, bar bending schedule
ANALISIS EVALUASI INDIKATOR KINERJA 'PELABUHAN HIJAU'
The concept of sustainable port development is becoming increasingly important to apply due to abnormal conditions of global environmental change. This is because the port has an important role in the economic development of a country. To overcome environmental pollution originating from the construction and operation of ports, the concept of a “green” Port is a solution. Therefore, many researchers have studied the effect of “green” Port performance indicators with various approaches. This analysis focuses on evaluating “green” Port performance indicators based on a literature study. These studies were conducted in several countries, such as: China, Taiwan, Egypt, England, Singapore, and Turkey using a scoring system that combines AHP and fuzzy methods. The results show that all “green” Port performance indicators can be grouped into the following criteria: 1) air pollution management, 2) solid waste pollution management, 3) liquid waste pollution management, 4) air pollution management, 5) marine habitat protection, 6) Port staff management training, and 7) promotion of the “green” Port concept.
PENGARUH MUKA AIR TANAH TERHADAP PENURUNAN FONDASI TELAPAK BUJUR SANGKAR KOTA GORONTALO
Penelitian ini bertujuan untuk menganalisis penurunan fondasi telapak bujur sangkar di beberapa kecamatan di Kota Gorontalo dengan memperhitungkan kondisi muka air tanah. Kota Gorontalo merupakan daerah yang saat ini semakin berkembang di Provinsi Gorontalo. Dampak dari hal tersebut yaitu terjadi penambahan gedung. Lokasi penelitian yaitu di Kecamatan Dungingi, Kecamatan Kota Barat, dan Kecamatan Sipatana Kota Gorontalo. Data yang digunakan yaitu data primer berupa data tinggi muka air tanah dan sebagian data tanah di Kecamatan Kota Barat, Kecamatan Sipatana, dan Kecamatan Dungingi. Data yang digunakan berupa data primer yaitu data tinggi muka air tanah dan data karakteristik tanah. Analisis penurunan perangkat lunak GEO5. Nilai penurunan terendah terletak di Kecamatan Kota Barat nilai penurunan pada perhitungan terendah terletak di Kecamatan Kota Barat pada kondisi asli z>B sebesar 49,60 mm < 65 mm dan kondisi muka air rencana (dw > Df) sebesar 50,60 mm < 65 mm sedangkan yang tertinggi di Kecamatan Sipatana dengan kondisi asli sebesar (z<B) 641,00 > 65 mm dan kondisi (dw > Df) sebesar 631,50 mm > 65 mm.
Fondasi Dangkal, Muka Air Tanah, Penurunan, GEO5
ANALISIS KERUSAKAN JALAN BERDASARKAN METODE BINA MARGA DAN DAMPAKNYA TERHADAP PENGGUNA (STUDI KASUS : JALAN NASIONAL LINTAS TIMUR SIMPANG PANGAT STA.0+000 S.D STA.3+000)
The East Cross National Road Simpang Pangat is a road network for the distribution of goods and services (international activities). This study was conducted with the aim of knowing the types of damage that occurred by observing the condition of the pavement directly and distributing questionnaires to 50 respondents, using the Binamarga method. Based on the results of road damage, the types of damage are longitudinal cracks, holes, corner breaks, surface texture damage, patches and height differences to the shoulder, with the priority order number obtained, namely number 2 from the UP range 0-7 then the value 2 is included in the category weight and must be included in the increase, while the results of the influence using the Likert scale method obtained a figure of 83.2% for road users and 84.0% for the community around the road and it is confirmed again by using the data on the effect of road damage on the community and road users using the SPSS application, the average value obtained from the questionnaire data is: 3.76 and falls into the category of Hight Interpretation with a standard deviation of 1.287 where the road must be repaired.
EXPERIMENTAL STUDY OF FINE GRAIN CONTENT OF SOIL ON LIQUEFACTION POTENTIAL
One of the efforts to realize environmentally sound development is to pay attention to disaster aspects that threaten an area, one of which is the phenomenon of liquefaction. The liquefaction disaster is of particular concern after the 2018 Palu liquefaction, damaging and claiming many victims. Liquefaction is a phenomenon in soils that are initially solid and then turn liquid due to increased pore water pressure due to cyclic loads or earthquakes, which reduce the carrying capacity of the soil. Not all types of soil have the potential to experience liquefaction. In general, soils with a high liquefaction potential are soils with a high content of fine sand grains and fewer clay particles. This study aims to determine the effect of fine grain content (silt and clay) on the magnitude of the liquefaction potential. The study was conducted using experimental modeling with fine sand soil samples (passed sieve number 40 and retained sieve number 100), which varied the content of fine grains (passed sieve number 200) as much as 0%, 5%, 10%, 15%, and 20%. The results of this study indicated that soil with a fines content of 0% liquefied after 5.56 seconds, and soil with a fines content of 20% experienced liquefaction after 23.84 seconds. This condition shows that the higher fine content of soil decreases its liquefaction potential.
ANALISIS KARAKTERISTIK & KEBUTUHAN LAHAN PARKIR KENDARAAN DI TRANSMART CILEGON, KOTA CILEGON
Transmart Cilegon is a modern shopping center located in Banten province. The Transmart Cilegon parking area was built as a mall parking space (off street parking). The use of available parking spaces is not always optimal, but depends on peak hours. In an effort to deal with this problem, it is necessary to provide sufficient parking space and determine the right parking model.The purpose of this study was to determine the characteristics of parking and to determine the design and need for vehicle parking spaces in the Transmart Cilegon parking area by collecting primary data through field observations and processed using Microsoft Excel. The parking characteristics at Transmart Cilegon experienced the maximum volume and the highest parking index on Saturday, February 26, 2022 with 146 cars with an index of 12.969% and 167 motorcycles with an index of 14.236%, and peaked accumulation at 16.00-16.59. The average duration for cars is 2.53 hours and motorbikes is 2.60 hours with a turnover rate of 0.802 vehicles/SRP for cars and 0.790 vehicles/SRP for motorbikes. Judging from the characteristics of the parking space, the need for available parking spaces at Transmart Cilegon is still adequate or the parking index is below 100%.
Parking Characteristics, Motorcycles, Cars, Parking Needs.
KUALITAS LAYANAN BANDAR UDARA INTERNASIONAL SULTAN HASANUDDIN TERHADAP PENGEMBANGAN PARIWISATA DI PROVINSI SULAWESI SELATAN
The development of air transportation activities around the world has increased the demand for airport services and for more efficient aircraft, passenger or baggage service processes. The airport is a key artery for the development of a nation. As time goes by, in the era of Society 5.0, means of transportation are growing and following technological developments. This study aims to determine how big the relationship between the quality of air transportation services at Sultan Hasanuddin International Airport on tourism development in South Sulawesi Province. In this study, path analysis was used with the help of the SPSS 25 software program through primary and secondary data collection. Based on the results of the analysis, the number of respondents as many as 100 respondents who participated in filling out the questionnaire, obtained the standard deviation value of each variable for waiting rooms of 5.143, for parking spaces of 3,775, for artificial tourism exploration parks of 3,401 and for tourism development of 5,839. The results of the correlation analysis test show that Ho is accepted while H1 is not accepted. correlation analysis obtained the value of r on the correlation ryx1x2x3 of 0.923. The value of r 0.923 0.837 indicates that the level of relationship between the three variables has a very strong relationship. In the sense that the variable passenger waiting room (X1), parking space (X2), and an artificial exploration park at the airport (X3) have assumptions that are simultaneously and significantly related to the tourism development variable (Y)
Bandar Udara, Tingkat Pelayanan, Pariwisata
ANALISIS KONDISI KERUSAKAN JALAN MENGGUNAKAN METODE PAVEMENT CONDITION INDEX (PCI) DAN INTERNATIONAL ROUGHNESS INDEX (IRI) BESERTA ALTERNATIF PENANGANANNYA (Studi Kasus: Jalan Samaun Pulubuhu - Jalan Boliohuto Huidu - Jalan A.K. Luneto)
Samaun Pulubuhu Street - Boliohuto Huidu Street - A.K. Luneto Street is one of the roads connecting Gorontalo City, Djalaludin Airport, and surrounding districts in Gorontalo Province. This study aims to compare the value of road conditions based on the PCI and IRI methods and determine the alternative treatments.This study uses the Pavement Condition Index (PCI) and International Roughness. Index (IRI) methods. The PCI value is obtained through a direct visual survey of road conditions. The IRI value was obtained through a survey using a car and the Roadlab Pro application.The results show that the condition of the roads based on the PCI method is excellent 19.44%, very good 8.8%, good 14.81%, moderate 18.06%, bad 17.13%, very bad 10.65%, and failed 11.11%. Meanwhile, road conditions based on the IRI method are good 3.13%, moderate 64.06%, lightly damaged 21.09%, and heavily damaged 11.72%. The PCI value on Samaun Pulubuhu Street is 52.48 in moderate condition with the type of treatment needed is minor rehabilitation, on Boliohuto Huidu Street is 61,53 in good condition with the type of treatment needed is routine maintenance, and on A.K. Luneto Street is 23.98 in bad condition with the type of treatment needed is reconstruction. The IRI value on Samaun Pulubuhu Street is 8.42 in a slightly damaged condition with the type of treatment needed is road quality improvement, on Boliohuto Huidu Street - A.K. Luneto Street are 5.68 and 6.41 in moderate condition with the type of treatment needed is regular maintenance.
Copyright (c) 2022 herris julian Koromath, Frice L Desei, Yuliyanti Kadir
EVALUASI KERUSAKAN JALAN LINTAS TIMUR DENGAN MENGGUNAKAN METODE BINA MARGA (Studi Kasus: Jalan Lintas Timur STA 10+000 – 11+000)
Jalan Lintas Timur (the East Highway) serves as an alternative road to divert traffic from the main Pangkalpinang-Sungailiat road. The East Highway is prioritized for industrial or heavy vehicles. The damaged road found in the East Highway’s STA 10+000 to STA 11+000 has reduced the ability to serve the traffic optimally. Therefore, a study on this road damage is imperative. Bina Marga Method is used for the road damage assessment (TP3JK No. 018/T/BNKT/1990). The road is divided into 20 segments, each 50 meters long. Road damage identification is carried out for each segment, untilizing several indicators consisting of level of damage, type of damage, and dimension of damage. The analysis result showed that the damage occurred in East Highway consists of rutting (1.967%), potholes (0.015%), raveling (13.283%), hair crack (0.078%), alligator crack (0.459%), edge crack (0.001%), slippage crack (1.399%), shoving (4.128%), and patching (78.669%). The assessment result of road condition in the East Highway has the average value of 5, with the average number of road damage of 13.6. The Priority Order obtained is 10, indicating that the road has mild damage. Therefore, to overcome the road damage on the East Highway, a routine maintenance program is needed. Key words: East Highway, road damage, bina marga method, road condition, priority order, maintenance program.
East Highway, road damage, bina marga method, road condition, priority order, maintenance program.
Copyright (c) 2022 Iqbal Abriansyah, Desy Yofianti, Revy Safitri
PEMANFAATAN BATU GUNUNG BOU BUYA KABUPATEN POSO UNTUK CAMPURAN AC-WC
Road infrastructure development is one of the government's efforts to improve the welfare of the Indonesian people, both in urban areas and in remote areas. The use of local materials for road pavement is recommended that its use can be maximized and can reduce dependence on materials originating from outside the region. Poso Regency is one area that has the potential to have a source of material in the form of mountain rock aggregates. The purpose of the study was to determine the characteristics of the AC-WC mixture using aggregate from Mount Bou Buya, Poso Regency, and to determine the Marshall Immersion value of the AC-WC mixture using rock aggregate from Mount Bou Buya. The 2018 Bina Marga General Specifications are used as a reference in this study. the composition of the mixture for asphalt content of 5% coarse aggregate is 37.50%, fine aggregate is 51.50%, filler is 6%, for asphalt content is 5.5% coarse aggregate is 37.35%, fine aggregate is 51.20%, filler 5 ,95%, for asphalt content of 6%, coarse aggregate is 37.20%, fine aggregate is 50.90%, filler is 5.90%, for asphalt content is 6.5%, coarse aggregate is 37.05%, fine aggregate is 50.60 %, 5.85% filler, for asphalt content of 7%, coarse aggregate is 36.90%, fine aggregate is 50.30%, filler is 5.80%. Marshall Immersion Test (residual Marshall Stability) for the AC – WC mixture using Batu Gunung Bou Buya aggregate, Poso Regency following the General Specifications of Highways 2018, which is 98.04%.
AC-WC, characteristics, Marshall Immersion
Copyright (c) 2022 Efraim Bunga, Alpius Alpius, Louise Elizabeth Radjawane
UJI DURABILITAS DAN PENUAAN CAMPURAN BERASPAL LAPIS AUS (AC-WC) DENGAN BAHAN TAMBAH LIMBAH BOTOL PLASTIK TERHADAP VARIASI LAMA RENDAMAN
The addition of polymer plastics into asphalt can be done in a wet or dry way, the stability of the asphalt-concrete mixture mixed with PET is proven to increase the stability value. Durability and aging tests are used to determine the value of the Residual Strength Index (RSI), First Durability Index (FDI), and Second Durability Index (SDI). Specimens STOA made by placing the specimens in bulk in the oven for 4 hours at a temperature of 135°C, while for LTOA the specimens were in the oven in a solid state for 2 days at a temperature of 85°C, then soaked in waterbatch at a temperature of 60°C with variations in soaking time of 0.5, 24, 48 ​​, 72, and 96 hours. The parameters of the durability of the mixture are seen from RSI, FDI, and SDI. Based on the research results, the asphalt content value obtained through the results of previous studies was 6.75%. Stability values ​​for normal, STOA, and LTOA specimens were 1,178.97kg, 1,057.68kg, and 955.79kg, respectively. RSI values ​​on normal test objects, STOA, and LTOA were 95.88%, 93.58%, 91.88%, respectively. FDI with a slope value (r) for normal test objects, STOA and LTOA respectively 0.64%, 0.88%, and 0.98%. SDI of normal, STOA, and LTOA for value (a) were 7.35%, 10.76%, and 12.29%, respectively. KAO in the Marshall Test this time is a mixture of asphalt with plastic 1.2% wet process has the highest durability value of 95.88%. The longer the immersion, the lower the stability value obtained.
Asphalt Durability, Plastic Bottle Waste, Asphalt Aging, Polyethylene Terephthalate (PET).
Copyright (c) 2022 Imran Kaaba, Fadly Achmad, Frice L Desei
ANALYSIS OF ATTRACTION MODEL OF VEHICLE MOVEMENT TOWARDS THE SPECIAL ECONOMIC AREA TANJUNG GUNUNG TOURISM, BANGKA REGENCY
During the New Normal period of the Covid-19 pandemic, activities in the economic, social, and cultural sectors began to resume activities. Likewise, activities in the tourism sector which have begun to be active again, supported by land, sea, and air transportation modes have also begun to be active again. This is in accordance with the President's desire to accelerate economic recovery during the Covid-19 pandemic. This effort is also one of the commitments of the Provincial Government of Bangka Belitung Islands to focus on developing tourism sector. There are several Special Economic Tourism Zones in the Province of Bangka Belitung Islands, one of which is Tanjung Gunung Tourism. The purpose of this study is to create a model that is used to calculate the magnitude of the attraction of vehicle movement and to identify and analyze the factors that influence to obtain a model of attraction for the movement of vehicles and visitors in tourist area of ​​Tanjung Gunung, Central Bangka Regency. There are 3 tourist destinations in this area, namely Pan Semujur Beach, Angsa Emas Hill, and Tapak Antu Beach. Data obtained by doing a correlation test and then doing a regression analysis to get the equations model. The independent variables reviewed included: prayer room (X1), bath room (X2), huts area (X3), dining area (X4), and ​​parking area (X5). From the regression analysis, it was found that a good model for pulling movement is: Y = -37.423+0.7203X4 with a coefficient of determination (R2) = 0.99. total dining area (X4).
Copyright (c) 2022 Indra Gunawan, Boy Dian Anugra Sandy
THE EFFECT OF ADDING CEMENT, HUSK ASH, AND FIBER ON INCREASING THE SHEAR STRENGTH OF CLAY SOIL
Soil is an important element in supporting development activities in the world of civil construction. One type of soil that is often found in South Sumatra is clay. Clay soil is a type of fine-grained soil that is strongly influenced by water content. Each clay has a different carrying capacity value, therefore an analysis is needed to test the effect of adding a mixture of materials to the clay. To see the effect of adding mixed materials to the soil, a test was carried out, in this test soil samples were taken from the Banyuasin district and added mixed materials in the form of fiber, husk ash and cement. For variations in soil mixture testing, 0.1% fiber, 2.5% husk ash and cement consist of 2.5%, 5% and 7.5% as well as plain water. The test results show that the addition of a mixture of fiber, husk ash and cement can improve the physical and mechanical properties of clay. For testing of physical and mechanical properties, where the cohesion value increased with the addition of 7.5% cement of 43.78 Kpa with a shear angle of 17.30o.
Copyright (c) 2022 Indrayani Indrayani ., Andi Herius, Alfin Ashadiq, Egal Hardewo, Arpan Hasan, Norca Praditya, Darma Prabudi
ANALISIS KETERSEDIAAN AIR DAN KEANDALAN KULONG PL KECAMATAN PANGKALAN BARU MENGGUNAKAN MODEL SARIMA DAN SOR
Air Mesu Village and Jeruk Village are two villages located in Pangkalan Baru District, Central Bangka Regency, Bangka Belitung Islands Province. The number of residents in the village increases every year, so that causes problem, the problem is needs of clean water will be increas. The solution to this problem is to use Kulong PL water as a source of raw water to meet the needs of clean water in Air Mesu Village and Jeruk Village. To ensure the availability of Kulong PL water is able to meet the needs of clean water in Air Mesu Village and Jeruk Village, a prediction will be made for the next 10 years, starting from 2021 to 2030. From the analysis results, the best model for predicting is SARIMA (0 ,0,0)(1,1,0)12 . Based on the SOR analysis, the best option in using Kulong PL is to focus on one village only. If the use of Kulong PL likes 100% then the permitted use is 3,06 l/det. As for Jeruk Village, Kulong PL is able to supply 100% of the needs with a 99% weight level.
Water availability, Reliability of Kulong, SARIMA, SOR.
Copyright (c) 2022 Sisillia Jesika Pririzki, Adriyansyah Adriyansyah, Hendy Stevanus, Rohil Agatha Lusia
ANALISIS PERBANDINGAN HASIL PERHITUNGAN METODE CROSS DAN METODE KEKAKUAN PADA PORTAL EKUIVALEN
Umar Suna, 2022. Analisis Perbandingan Hasil Perhitungan Metode Cross dan Metode Kekakuan Pada Portal Ekuivalen. Program Studi S1 Teknik Sipil, Jurusan Teknik Sipil, Fakultas Teknik, Universitas Negeri Gorontalo. Pembimbing I, Kasmat Saleh Nur, S.T.,M.T. dan Pembimbing II, Dr. Rahmani Kadarningsih, S.T.,M.T. Metode perhitungan dalam perencanaan struktur sebuah bangunan memiliki konsep yang sama. Sebagai engineer dalam merencanakan struktur bangunan dihadapkan pada permasalahan dalam menentukan metode yang akan digunakan, sehingga menghasilkan perhitungan struktur yang efektif, efisien, dan aman. Analisis perbandingan antara metode Cross dan metode kekakuan dilakukan agar dapat memberikan gambaran perbedaan hasil kedua metode pada struktur simetris dan tidak simetris. Penelitian ini dilakukan pada portal ekuivalen dengan 3 variasi bentang dengan beban yang digunakan adalah beban gravitasi. Analisis dilakukan menggunakan metode kekakuan dan metode Cross pada setiap portal. Hasil dari kedua metode pada masing-masing portal dilihat perbandingannya. Dalam hasil analisis yang dilakukan, pada portal ekuivalen yang simetris metode kekakuan hasilnya lebih besar dari metode Cross pada struktur eksterior dan metode Cross hasilnya lebih besar dari metode kekakuan pada struktur interior. pada portal ekuivalen yang tidak simetris perbandingannya hampir sama dengan portal ekuivalen yang simetris tetapi terdapat perbedaan pada kolom interior yaitu pada elemen CG dan GK dimana pada portal 2 momen metode Cross jauh lebih besar hingga 152,9% pada elemen CG dan 75,1% pada elemen GK dibanding metode kekakuan sedangkan pada portal 3 momen dari metode kekakuan jauh lebih besar hingga 332,76% pada elemen CG dan 247,79% pada elemen GK dibanding metode Cross.
Metode Kekakuan, Metode Cross, Displacement, Gaya Momen.
Copyright (c) 2022 Umar Suna, Kasmat Saleh Nur, Rahmani Kadarningsih
PERILAKU TEKANAN AIR PORI PADA BENDUNGAN BAJULMATI MULAI PENGISIAN HINGGA TAHUN 2020
Bendungan Bajulmati mulai pengisian awal waduk pada tahun 2015 dan pemantauan tekanan air pori dilakukan dengan pengukuran pisometer pneumatik yang dipasang di dalam tubuh dan pondasi bendungan. Pemantauan rutin dan interpretasi yang baik dari data pembacaan pisometer yang terpasang pada bendungan perlu dilakukan guna mengetahui perilaku tekanan air pori pada bendungan, sehingga dapat mengetahui secara dini masalah yang mungkin sedang terjadi, mengingat bahwa tekanan air pori dapat mempengaruhi keamanan stabilitas lereng. Tujuan dari penelitian ini adalah untuk mendapatkan perilaku tekanan air pori pada Bendungan Bajulmati mulai dari pengisian awal waduk hingga tahun 2020. Perilaku tekanan air pori pada Bendungan Bajulmati, dilakukan dengan pemodelan SEEP/W kondisi transient, kemudian dibandingkan dengan data hasil pengukuran pisometer di lapangan. Hasil pemodelan menunjukkan bahwa muka air waduk mempengaruhi perilaku tekanan air pori pada tubuh bendungan. Nilai tekanan air pori hasil pemodelan nilainya lebih rendah daripada pengukuran pisometer di lapangan dengan deviasi sebesar 2,2 dan 2,1 mH2O, namun demikian data pembacaan pisometer PP6 dan PP7 masih menunjukkan trend yang sama dengan hasil pemodelan, sehingga disimpulkan bahwa kondisinya masih wajar.
Bendungan Bajulmati, tekanan air pori, pisometer, SEEP/W.
Copyright (c) 2022 Rahman Hakim Ardiansyah, Nofyar Dwi Khurtumi
ANALYSIS OF FACTORS THAT INFLUENCE ON COST INCREASE DURING PROJECT IMPLEMENTATION DURING THE COVID-19 PANDEMIC ON SMALL SCALE CONSTRUCTION SERVICES IN BALI
The Covid-19 virus pandemic that hit Indonesia, especially Bali, had a huge impact on people's lives. This has an impact on several sectors, ranging from the health sector, the economy, education, tourism, including the development sector. The Corona outbreak has forced all countries to revise the development plans that have been proclaimed. Targets were realistically adjusted, assumptions were changed according to current circumstances, and short-term program priorities were shifted largely to address the Covid-19 pandemic. In the context of accelerating development to restore economic conditions, several small-scale construction service actors are still able to carry out development even though they have to experience several obstacles. During the implementation of development during a pandemic, of course, some costs undergo significant changes that can even cause cost overruns. The swelling of construction project costs is highly dependent on several factors, both internal and external factors of the project. Several factors were very influential in cost overruns during the implementation of projects carried out by small-scale construction service actors during the Covid-19 pandemic, including inaccurate cost estimates (9.33%), errors in choosing work methods (8.84%) ), low labor productivity (8.15%), dimensional error/measurement of work in progress (8.14%), frequent work delays (8.04%), schedule delays due to weather effects (8.00%), an increase in material prices (7.94%), high equipment prices/rents (7.67%), delays/lack of materials and materials (7.31%), material damage (6.81%), material specifications required unsuitable (6.52%), and untimely payment methods (6.26%).
Copyright (c) 2022 Ida Ayu Cri Vinantya Laksmi, I Wayan Jawat, Ni Komang Armaeni