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M. Baitullah Al Amin
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baitullahalamin@ft.unsri.ac.id
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INDONESIA
CANTILEVER
Published by Universitas Sriwijaya
ISSN : 19074247     EISSN : 24774863     DOI : -
Core Subject : Social, Engineering,
CANTILEVER merupakan jurnal penelitian dan kajian teknik sipil yang menyajikan hasil-hasil penelitian di bidang struktur, transportasi, pengembangan sumberdaya air, geoteknik, manajemen infrastruktur, dan rekayasa lingkungan serta arsitektur. Cantilever pertama kali diterbitkan pada tahun 2006 dalam versi cetak. Sejak tahun 2015, cantilever diterbitkan baik dalam versi cetak maupun online (e-journal). Jurnal ini dikelola dan diterbitkan oleh Jurusan Teknik Sipil Fakultas Teknik Universitas Sriwijaya. Cantilever terbit 2 (dua) kali dalam setahun, yaitu pada April dan Oktober.
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Articles 6 Documents
Search results for , issue " Vol 8, No 1 (2019): Cantilever" : 6 Documents clear
INOVASI TEKNOLOGI MATERIAL RAMAH LINGKUNGAN DALAM MENDUKUNG PERKEMBANGAN INFRASTRUKTUR TRANSPORTASI KERETA API Wirawan, Willy Artha; Zulkarnain, Akbar; Rozaq, Fadli
CANTILEVER Vol 8, No 1 (2019): Cantilever
Publisher : Jurusan Teknik Sipil dan Perencanaan Fakultas Teknik Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35139/cantilever.v8i1.76

Abstract

The development of infrastructure to support railway facilities requires innovation in materials that are lightweight, strong and environmentally safe.  The biocomposite is one of the innovations in engineering technology of new materials made of natural fibers.  In this study, the development of environmentally safe materials (biocomposite) was made by using bark fibers of waru trees.  The waru bark fibers were analyzed by varying the compositions of treatment: 0% chemicals, 6% of NaOH, and 0.75% of silane.  Afterwards, the waru bark fibers were formed using the vacuum infusion method by applying a polyester matrix.  In this study, several analyses had been conducted on fiber composition, SEM, and fracture area.  The results showed that the treatment of the structure of alkali-silane fibers (the content of lignin, cellulose, and hemicellulose), made the performance of materials better which had been proven by the decreased fracture area of 250.777 mm2.  The waru bark fiber biocomposite materials can be applied as an innovation in developing fiber replacement materials to support railway interior facilities that are cheaper and environmentally safe.
ANALISIS PERANCANGAN STRUKTUR BANGUNAN ATAS JEMBATAN AMPERA DI SUNGAI DIGOEL PAPUA Setiati, N. Retno
CANTILEVER Vol 8, No 1 (2019): Cantilever
Publisher : Jurusan Teknik Sipil dan Perencanaan Fakultas Teknik Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35139/cantilever.v8i1.77

Abstract

Digoel river which separates between the western and eastern parts of Boven Digoel is a type of meander river (winding).Digoel river flow always changes in each period, so that the type of river Digoel influenced the method of designing and implementing the construction of a bridge that connecting Tanah Merah with Kampung Ampera significantly.  The aim of this study wasto analyze the results of the feasibility study relating to the design of upper structures of Ampera bridge in Boven Digoel, Papua.  The research method was carried out by conducting the laboratory and field experiments to obtain parameters in designing a bridge.  The laboratory experiments which had beenconductedwereaggregate materials (sand and gravels) and river water content tests.  The fieldexperiments were topography, bathymetry, geoelectric, and soil tests.  The structural analysis were conducted using a computer program (MIDAS), then based on the obtained data from the analysis results and evaluation, the type of bridge and planningcould be determined.  The Ampera Bridge that connects Tanah Merah with the village of Ampera was designed using a type of curved bridge ona main span of 200 meters.  The approach bridge was built by a span of 40 meters and 60 meters of steel frames.  The total length of the planned bridge is 600 meters.
ANALISIS BEBAN KERJA DAN JUMLAH OPERATOR PENULANGAN RANGKA BETON UDIT Wahyuni, Dini; Sembiring, Meilita Tryana; Putra, Suryadi; Budiman, Irwan
CANTILEVER Vol 8, No 1 (2019): Cantilever
Publisher : Jurusan Teknik Sipil dan Perencanaan Fakultas Teknik Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35139/cantilever.v8i1.72

Abstract

This study was conducted at a factory producing construction and building materials such as ready mix concrete, piles, udit concrete, and ryol.  These products are produced in almost the same process, but on different production lines.  There are 2 operators in the frame reinforcement section for udit concrete production.  It is seen that the two operators have the same task but different results of their work, so that the production target is not achieved.  The workload analysis method is used to determine the operator's actual load.  Observation of activities is carried out by the work sampling method for 5 days.  In work sampling, work and idle activities of workers are observed at randomly selected times and the amount of production during observations is recorded.  From the study, it is known the ideal of actual load of each operator and the number of operators for the concrete frames reinforcement.  The results showed workload of operator 1 was 95.11% while workload of operator 2 was 107%.  The number of operators reinforcing concrete frames remains fixed for 2 people, but wage compensation needs to be given to operators 2 for excess workload refers to the amount of wages and provisions for overtime that are applicable in the company.
PENGARUH LIMBAH PLAFON GIPSUM TERHADAP PENURUNAN KONSOLIDASI PADA TANAH LEMPUNG EKSPANSIF Dewi, Ratna; Sutejo, Yulindasari; Rahmadini, Rizki; Arfan, Muhammad; Rustam, Reffanda Kurniawan
CANTILEVER Vol 8, No 1 (2019): Cantilever
Publisher : Jurusan Teknik Sipil dan Perencanaan Fakultas Teknik Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35139/cantilever.v8i1.78

Abstract

Expansive clay has a high potential to swell if compared to other types of clay.  Expansive clay also has very low bearing capacity so that a method of soil improvement was needed to improve the soil.  This type of soil can be found in Gasing village, Tanjung Api-Api Km.  11 Banyuasin regency of South Sumatra Province.  This research aims to study the mixture of gypsum plafond waste as additives in the process of stabilizing expansive soil clay.  It can be made according to the needs of the mixture.  In this study, the percentage of mixture of gypsum plafond waste are 5 %, 10 % and 15%.  The test used an Oedometer (SNI 2812: 2011/ASTM D2435) equipment.  By giving the pressure of 2.5 kN/m2; 5 kN/m2; 10 kN/m2; 20 kN/m2; and 40 kN/m2.  The test results of the clay without mixture with gypsum plafond obtained were liquid limit value (LL) = 67%, plastic limit (PL) = 26.38% and plastic index value (PI) of 40.62%.  Spesific Gravity (Gs) = 2.696, optimal water content (wopt) = 21.55 % and optimal dry weight (wopt) = 1.55 gr/cm3.  Therefore, the soil sample was an expansive clay type and classified as A-7-6 (AASHTO classification).  Consolidated test results show that soil compression index (Cc) = 0.190.  After mixed with gypsum plafond waste of 15 %, the compression index value (cc) = 0.080.  This indicates that the compression index value (cc) has decreased.  Based on the above, it can be concluded that the mixture of gypsum waste in expansive clay causes soil settlement.
PENGARUH TIPE BENTUK SERAT BAJA TERHADAP SIFAT FISIK DAN MEKANIK BETON BERSERAT BAJA MEMADAT SENDIRI Sulthan, Faiz
CANTILEVER Vol 8, No 1 (2019): Cantilever
Publisher : Jurusan Teknik Sipil dan Perencanaan Fakultas Teknik Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35139/cantilever.v8i1.71

Abstract

The weaknesses of the concrete material are weak to the tensile strength and brittle.  The solution to overcome this weakness is by adding fibers like steel fiber.  The use of steel fibers has constraints in workability.  So as to facilitate work in the field, it was developed to become self-compacting concrete (SCC).  SCC which uses additional steel fibers is known as steel fibers reinforced self-compacting concrete (SFRSCC).  The development of steel fiber shapes from beginning to the present has produced many types of shapes, including of straight, crimped, and hooked.  Based on the various shapes of steel fiber, further development of SFRSCC technology needs to be carried out.  This paper analyzed the influence of steel fiber types consisting of the three types of shapes on the physical and mechanical properties of SFRSCC.  The methodology in this paper is to use literature review and experimental methods.  The results of the analysis show that all types of steel fibers result in a decrease in workability.  The biggest decrease is using hooked type steel fibers, and the smallest uses straight type.  The results of the mechanical properties analysis showed the opposite, the largest increase in mechanical properties was obtained using hooked type, and straight type.  For optimum physical and mechanical properties, crimped type is recommended as a type of steel fiber in the SFRSCC.
PENGARUH FLUKTUASI MUKA AIR TERHADAP DEBIT ALIRAN PADA SUNGAI KETUPAK PADA SAAT MUSIM PENGHUJAN Yendri, Okma; Oemiati, Nurnilam; Muafi, Alaik Yahya
CANTILEVER Vol 8, No 1 (2019): Cantilever
Publisher : Jurusan Teknik Sipil dan Perencanaan Fakultas Teknik Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35139/cantilever.v8i1.75

Abstract

The fluctuations in Ketupak river water affect the amount of inundation that occurs in G Dwijaya Village, Tugumulyo Subdistrict, Musi Rawas Regency.  The research aims to obtain a cross section of river channels to drain runoff water, so that runoff water due to maximum rainfall does not cause inundation.  the Ketupak river channel is unable to float the flow discharge that occurs during the rainy season, besides that there is also a lot of sediment, garbage, trunks and branches that interfere with ketupak river flow, so a re-dimension of the river channel needs to be done.  Based on the calculation of the Ketupak River discharge in the rainy season using the Chow formula method, flowrate (Q) is obtained at 5.22 m³ / sec.  From the results of calculations According to the 5-year rainfall data from 2012-2016, Q = 0.719 m³ / s, so when the rainy season the flow in the river becomes 5.94 m³ / sec (Q ≤ Q max), to meet Q max = equal to 5.94 m³ / sec, it is necessary to add a river cross-sectional area of 12.33 m² to 15.63 m² so that Q is obtained at 5.94 m³ / sec (Q ≥ Q max).

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