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CANTILEVER
Published by Universitas Sriwijaya
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.
Articles
46
Articles
KONSEP SITE PLAN PERANCANGAN PERPUSTAKAAN BIOKLIMATIK DI PALEMBANG

Putri, D.E.P ( Program Studi Teknik Arsitektur, Fakultas Teknik Universitas Sriwijaya ) , Siswanto, Arie ( Program Studi Teknik Arsitektur, Fakultas Teknik Universitas Sriwijaya ) , Romdhoni, Muhammad Fajri ( Program Studi Teknik Arsitektur, Fakultas Teknik Universitas Sriwijaya )

CANTILEVER Vol 7, No 2 (2018): Cantilever
Publisher : Jurusan Teknik Sipil & Perencanaan Fakultas Teknik Universitas Sriwijaya

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Abstract

The design of the library in  Palembang consider various aspects of them, are tropical climate conditions that have high rainfall, heat and humid air. Macro and micro siting conditions greatly affect the concept of library design. The concept of designing the site for the Library uses the Bioclimatic approach in order to create an element of comfort for building users based on the local climate. The method used in this research is design thinking method which consists of 5 stages of design and perform contextual analysis based on the climate and the characteristics of the site. Before the analysis activity is done, measurement and observation of tread area are included in the site. Based on the results of contextual analysis, the design of the Librarys siteplan can provide responses to the environment, site potential, circulation and accessibility, climatology, noise and pollution, vegetation, people and culture and utilities. The response is a bioclimatic answer to improve thermal and visual comfort associated with the use of vegetation around buildings or public spaces to control wind, materials that do not cause excessive glare in the site, to water around the site to lower the temperature and flood locally. The conclusion is the site plan of the library in Palembang City which has hot weather and high rainfall and humidity can be anticipated to improve the comfort of the building user through the use of contextual climate with the environment of the site based on Bioclimatic principles.

FENOMENA ROB DI KOTA SEMARANG

Pratikso, Pratikso ( Teknik Sipil Universitas Islam Sultan Agung Semarang ) , Soedarsono, Soedarsono ( Teknik Sipil Universitas Islam Sultan Agung Semarang )

CANTILEVER Vol 7, No 2 (2018): Cantilever
Publisher : Jurusan Teknik Sipil & Perencanaan Fakultas Teknik Universitas Sriwijaya

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Abstract

The city of Semarang can generally be divided into two regions. The first is the upper region with hilly soil condition, solid and the height almost reaches 350 meters from the sea level.The second is the lower region which is softly grained alluvial plains. The position of the lower land of Semarang has same height with the sea level, so that is too risky when the water overflows onto mainland. The issues that arise, are the soil becomes land subsidence because additional load onto it, consolidation and the excessive groundwater so when tides has come through mainland and flood some territory of the lower land of Semarang. The purpose of this research is to create a map of puddle, because of land subsidence that has made ??rob? (Java Slang) and extensive changes puddle from time to time. That results will make stakeholders to adjust the existing condition. The methodology of research is done by drilling machine on 5 points until 30 meters depth to get soils sample that spreads in the at whole of the lower land of Semarang. The sample has been obtained and also tested by using the mechanical properties and soil properties at UNISSULA??s soil mechanical laboratory. Based on the test lab,it is analyzed to get the result how deep the soil settlement caused due to consolidation. Finally it holds analyzing extensive changes puddle cause of land subsidence by using GIS. The result of this research is puddles map in Semarang city and it changes from time to time. Besides that the analysis is further to the north (seaward) down more, but the time also give the biggest impact of land subsidence.

PENGARUH TEMPERATUR PEMERAMAN PADA PERILAKU GESER TANAH LEMPUNG YANG DISTABILISASI DENGAN SEMEN

Harmoko, John Tri ( Program Studi Teknik Sipil Fakultas Teknik Universitas Atma Jaya Yogyakarta ) , Suryadharma, Hendra ( Program Studi Teknik Sipil Fakultas Teknik Universitas Atma Jaya Yogyakarta )

CANTILEVER Vol 7, No 2 (2018): Cantilever
Publisher : Jurusan Teknik Sipil & Perencanaan Fakultas Teknik Universitas Sriwijaya

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Abstract

Pengaruh temperatur peneraman pada kekuatan beton, mortar atau tanah berbutir kasar yang distabilisasi dengan semen sudah banyak dilaporkan didalam literatur. Namun demikian, pengaruh tempertaur pemeraman pada tanah lempung yang distabilisasi dengan semen masih belum banyak dilakukan. Perbedaan mendasar antara kedua hal tersebut adalah adanya reaksi posolanik yang terjadi didalam tanah yang distabilisasi dengan semen yang menghasilkan perilaku geser yang lebih kompleks dibandingkan dengan pada beton, mortar maupun tanah berbutir yang distabilisasi dengan semen. Serangkaian pengujian dilakukan pada penelitian ini untuk mengkaji perbedaan tersebut dengan menggunakan lempung lokal yang diambil dari Wates yang distabilisasi dengan semen portland biasa (ordinary portland cement). Sejumlah komposisi campuran lempung Wates- semen diperam dengan temperatur pemeraman yang berbeda (25, 30, 40, dan 50OC). Kuat geser tanah tersebut diuji di dalam alat kuat tekan bebas dengan waktu pemeraman yang berbeda ?? sampai dengan 56 (limapuluh enam) hari (7, 14,21, 28, 36, dan 56 hari). Hasil penelitian menunjukkan bahwa : Kuat tekan bebas tanah lempung anorganik yang distabilisasi dengan semen meningkat dengan bertambahnya suhu pemeraman pada waktu pemeraman yang sama akibat tingginya derajat sementasi dan reaksi posolanik.Pada kandungan semen rendah, reaksi posolanik tetap berlangsung oleh adanya disosiasi silikat dan aluminat pada temperatur tinggi. Kadar air pada saat pencampuran berpengaruh pada hasil kuat tekan bebas walaupun waktu dan suhu pemeraman sama.Jika dibandingkan dengan hasil-hasil penelitian terdahulu yang diacu dari referensi, hasil penlitian menunjukkan kecenderungan yang mirip.

STUDI PERILAKU KUAT GESER BALOK BETON BERTULANG MEMADAT SENDIRI DENGAN SERAT ??POLYPROPYLENE?

Lisantono, A. ( Program Studi Teknik Sipil Fakultas Teknik Universitas Atma Jaya Yogyakarta ) , Praja, B.A. ( Program Studi Teknik Sipil Fakultas Teknik Universitas Atma Jaya Yogyakarta ) , Prasetio, H.K. ( Program Studi Teknik Sipil Fakultas Teknik Universitas Atma Jaya Yogyakarta )

CANTILEVER Vol 7, No 2 (2018): Cantilever
Publisher : Jurusan Teknik Sipil & Perencanaan Fakultas Teknik Universitas Sriwijaya

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Abstract

This paper presents a study of the behavior of self compacting reinforced concrete with polypropylene fiber. Four self compacting reinforecd concrete beam specimens were cast and tested in this study. Two beams were cast without fiber and two beams were cast with polypropylene fiber. The proportion of polypropylene fiber was 0.9 kg/m of the weight of concrete and the proportion of silica fume was 10 % of the weight of portland cement. The dimension of the beam was (180?260) mm with 2000 mm length. Two longitudinal bars with ?10 mm were placed at the top of the beam as compressive bars and three longitudinal bars with ?10 mm were placed at the bottom of the beam as tensile bars. Shear reinforcement with ?8 mm with spacing of 150 mm were placed at the midle, and there were no stirrups at the shear region. Several cylinder specimens with size of (150?300) mm and beam without reinforcement with size of (200?200?700) mm were also cast and tested to determine the mechanics properties of concrete such as compressive strength, tensile strength, modulus of elasticity and modulus of ruptures. The result show that the compressive strength and modulus of elasticity of self compacting concrete with polypropylene fiber were decreased 26.98 % and 9.98 %, respectively compare to the self compacting concrete without fiber. While the tensile strength and modulus of ruptures of the self compacting concrete with polypropylene fiber were increased 2.76 % and 3.65 %, respectively compare to the self compacting concrete without fiber. The shear capacities of the self compacting concrete beams without fiber were 62.76 kN and 63.44 kN. While the shear capacities of the self compacting concrete beams with polypropylene fiber were 60.77 kN and 50.61 kN.

EVALUASI LOKASI TERMINAL TIPE B MENJADI ALUN-ALUN KOTA (KOTA INDERALAYA KABUPATEN OGAN ILIR)

Carmo, F.D. ( Pengelolaan Sumber Daya Alam, Pascasarjana Universitas Sriwijaya ) , Siswanto, Arie ( Pascasarjana Universitas Sriwijaya ) , Yazid, M. ( Pascasarjana Universitas Sriwijaya )

CANTILEVER Vol 7, No 2 (2018): Cantilever
Publisher : Jurusan Teknik Sipil & Perencanaan Fakultas Teknik Universitas Sriwijaya

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Abstract

The requirement of public open space has become a necessity of the urban community, as is the case of Inderalaya City where public open space has become a necessity too. Terminal Type B Inderalaya City is not functioning properly so that evaluated the location of the terminal and changed its function to the City Square. Where can be used as a place of social interaction activities for the community, sports activities, art and cultural activities, etc. This study examines how the functionality of type B terminal Inderalaya City and evaluate the terminal into the city square in fulfilling the needs of Public Open Space seen from the policy side taken. This research uses descriptive qualitative approach. Data analysis is done through field observation, literature study, open interview and documentation. The result of the research mentioned that Terminal Type B Indralaya City is not functioning properly. This can be seen from the aspects of facilities that are less well maintained, location aspect, terminal management aspect and so forth. Evaluation of terminal location is done by regulation and view existing condition of existing public open space, Type B Terminal can be utilized as Town Square.

SIMULASI KARAKTERISTIK GENANGAN BANJIR MENGGUNAKAN HEC-RAS 5 (STUDI KASUS SUBSISTEM SEKANAK DI KOTA PALEMBANG)

Al Amin, M. Baitullah ( Jurusan Teknik Sipil, Fakultas Teknik, Universitas Sriwijaya ) , Ulfah, Luthfiyyah ( Jurusan Teknik Sipil, Fakultas Teknik, Universitas Sriwijaya ) , Haki, Helmi ( Jurusan Teknik Sipil, Fakultas Teknik, Universitas Sriwijaya ) , Sarino, Sarino ( Jurusan Teknik Sipil, Fakultas Teknik, Universitas Sriwijaya )

CANTILEVER Vol 7, No 2 (2018): Cantilever
Publisher : Jurusan Teknik Sipil & Perencanaan Fakultas Teknik Universitas Sriwijaya

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Abstract

This paper deals with the modelling and simulation of flood inundation characteristics i.e. boundaries, depths, and velocities within Sekanak Subsystem which is one of flood-prone areas in Palembang City, Indonesia. The area of subsystem being studied was about 11 km2 . The new hydrodynamic model, HEC-RAS 5.0 was used to simulate the flood flow regimes by integrating the one-dimensional and two-dimensional model, known as combined 1D/2D flow model. The geometry of drainage channel was used as 1D domain to simulate the flow routing along the channel based on certain boundary conditions i.e. 25-yrs flood discharge and tide level both in upstream and downstream. The 2D domain in the model was the geometry of area beside the channel. The flow of 1D and 2D domain were connected by lateral weir, so the water which overflowing from the channel could be routed within 2D areas. The result shows that the area of inundation during lowest tide level is about 3.43 km2 with the velocities and depths range between 0 ?? 1.18 m/s and 0 ?? 3.08 m respectively. Furthermore, for average tide level, the area of inundation increases to 3.54 km with the velocities and depths range between 0 ?? 1.30 m/s and 0 ?? 3.11 m respectively. The maximum potential of inundation during the highest tide level is about 4.46 km2 with the velocities and depths respectively range between 0 ?? 2.64 m/s and 0 ?? 3.40 m. Therefore, it can be concluded that almost half of subsystem area potentially being inundated (40.11%), so it requires appropriate flood control and management to reduce the risk.

PERILAKU GESER TANAH YANG DISTABILISASI DENGAN KAPUR ABU SEKAM PADI DAN TULANGAN SERAT SABUT KELAPA

Suryadharma, Hendra ( Program Studi Teknik Sipil Fakultas Teknik Universitas Atma Jaya Yogyakarta ) , Hatmoko, John Tri ( Program Studi Teknik Sipil Fakultas Teknik Universitas Atma Jaya Yogyakarta )

CANTILEVER Vol 7, No 1 (2018): Cantilever
Publisher : Jurusan Teknik Sipil & Perencanaan Fakultas Teknik Universitas Sriwijaya

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Abstract

Serangkaian pengujian laboratorium dilakukan pada pengaruh individual dan pengaruh kombinasi dari inklusi serat sabut kelapa (SSK) yanng disebar secara acak didalam tanah yang distabilisasi dengan abu sekam padi dan kapur. Abu sekam padi dicampur dengan lempung dan pasir dengan proporsi yang berbeda. Sifat-sifat geoteknik dari abu sekam padi + tanah, dan abu sekam padi + tanah + 0,8 sampai dengan 1,2% SSK dengan waktu pemeraman yang berbeda telah diteliti melalui pengujian kuat tekan bebas, geser langsung dan triaksial. Hasil penelitian menunjukkan bahwa Pada pengujian pemadatan, untuk kadar kapur 4 dan 8% menunjukkan peningkatan kepadatan MDD dan penurunan OMC sejalan dengan lamanya waktu pemeraman.Pada pengujian geser terlihat bahwa penambahan SSK kedalam tanah ?? RHA tidak secara konsisten meningkatkan parameter geser tanah yaitu kohesi (c) dan sudut gesek dalam (Φ). Namun demikian secara umum penambahan SSK menigkatkan kuat geser tanah.Didalam pengujian kuat tekan bebas, penambahan SSK meningkatkan daktilitas tanah baik yang distabilisasi maupun tidak distabilisasi dengan kapur.Peningkatan kuat tekan bebas pada tanah + RHA tanpa kapur sebagai akibat dari tulangan SSK tergantung pada kuat tekan pada sampel tanpa tulangan. Penambahan SSK meningkatkan tegangan tekan pada tanah yang tidak distablisasi. Kuat tekan bebas pada tanah + RHA meningkat akibat penambahan kapur dan SSK. Hal ini tergantung pada campuran dan masa pemeraman. Peningkatan kuat tekan bebas yang disebabkan oleh gabungan kapur dan SSK relatif besar.

PENGARUH PENAMBAHAN SERBUK CANGKANG KEONG TERHADAP NILAI CBR TANAH LEMPUNG EKSPANSIF

Hastuti, Yulia ( Program Studi Teknik Sipil, Fakultas Teknik Universitas Sriwijaya ) , Muhtarom, Ahmad ( Program Studi Teknik Sipil, Fakultas Teknik Universitas Sriwijaya ) , Iryani, Sakura Yulia ( Program Studi Teknik Sipil, Fakultas Teknik Universitas Sriwijaya ) , Derisqi, Azmi ( Program Studi Teknik Sipil, Fakultas Teknik Universitas Sriwijaya ) , Dewi, Ratna ( Program Studi Teknik Sipil, Fakultas Teknik Universitas Sriwijaya )

CANTILEVER Vol 7, No 1 (2018): Cantilever
Publisher : Jurusan Teknik Sipil & Perencanaan Fakultas Teknik Universitas Sriwijaya

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Abstract

n this research, soil improvement is done by using waste of snail shells (LCK) in Desa Ulak Kembahang II, Kecamatan Lubuk Keliat, Kabupaten Ogan Ilir, Sumatera Selatan and soil from Tanjung Api-api Area, Gasing , Kabupaten Banyuasin, Sumatera Selatan . The soil used is a type of problematic soil that is expansive clay, which is known LL value (Liquid limit) more than 35%. The LCK used is then used as powder. Furthermore, there are 5 variations of percentage of addition of snail shell powder (SCK) with soil, and give the curing time is for 0, 1 and 7 days. Results from CBR Unsoaked (US) Testing resulted in the addition of SCK at a certain percentage and the curing time could increase the value of CBR expansive clay soil. The highest value of CBR Unsoaked on variation of percentage of SCK increase as much as 11% in the curing curing time for 7 days that is equal to 5.6% for the value of CBR US which in the original land has a CBR value of 3.5%. The result analysis of SEM-EDX test on soil mixture and SCK known SCK works as filler which fill the cavity found in soil grains and the main element of soil known as SiO2 and Al2O3 forming binder material with CaO.

BUILDING INFORMATION MODELING BASED COMPARISON STUDY ON ENERGY INFRASTRUCTURE PROJECT USING INDUSTRIALIZED BUILDING SYSTEM AND CONVENTIONAL METHOD

Usman, Fathoni ( Institute of Energy Infrastructure, Universiti Tenaga Nasional, Kajang, Malaysia ) , Hamim, Sumi Amariena ( Universitas Indo Global Mandiri, Palembang, Indonesia )

CANTILEVER Vol 7, No 1 (2018): Cantilever
Publisher : Jurusan Teknik Sipil & Perencanaan Fakultas Teknik Universitas Sriwijaya

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Abstract

Construction industry in Malaysia has moved forward into technology-driven where its transition is in progress from conventional method to a more advanced and mechanized system known as the Industrialized Building System (IBS). This paper presents economic aspects of using Interlocking Hollow Brick System (IHBS) in the construction of the Primary Distribution Sub-station (PPU) of energy infrastructure asset development. The main objective is to compare the difference in construction method between IHBS with the conventional method. The study is focused on comparing various aspects of using interlocking block system in terms of time, costs, and utilization of workforce. Building Information Modelling tools in this study are used. From the analysis and modeling of the PPU, it is shown that the implementation of IHBS can reduce construction time, cost, and utilization of workforce up to 40% - 50% as compared to the conventional method. The construction time using IHBS can be reduced up to 48% as compared to the conventional construction method.

PERILAKU BALOK KASTELA BENTANG PENDEK DENGAN VARIASI BUKAAN CIRCULAR, DIAMOND DAN HEXAGONAL MENGGUNAKAN METODE ELEMEN HINGGA

Muhtarom, Ahmad ( Program Studi Teknik Sipil, Fakultas Teknik Universitas Sriwijaya ) , Idris, Yakni ( Program Studi Teknik Sipil, Fakultas Teknik Universitas Sriwijaya ) , Welly, Welly ( Program Studi Teknik Sipil, Fakultas Teknik Universitas Sriwijaya )

CANTILEVER Vol 7, No 1 (2018): Cantilever
Publisher : Jurusan Teknik Sipil & Perencanaan Fakultas Teknik Universitas Sriwijaya

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Abstract

Opening modification of castellated beam now has varied including circular, diamond and hexagonal, in the selection of openings required data behavior as the basis of planning according to the desired conditions. The purpose of this study is to know the behavior of short-span castellated beam with variations of circular, diamond and hexagonal openings using finite element method. The geometry of the 1 meter span castellated beam used 225x75x7x5 mm. The method used to create a numerical model castellated beam with circular openings that are analyzed using finite element method then verified with experimental model results with geometry, material and loading the same. After the numerical model result closer to the experimental model, then created 5 variations of the geometry of numerical model openings for each variations. The results showed that the variation in the height and width of the same openings in the three types of openings obtained for the circular opening beams have greater deflection than the others because of the larger holes ratio. For diamond opening beams, the ultimate load is greater than the other because the ratio of the smaller holes ratio and for the hexagonal opening beams has the smallest deflection and stress than the others.