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All Journal JURNAL KARYA TEKNIK SIPIL
Sri Tudjono
Jurusan Teknik Sipil FT. UNDIP Jl. Prof. Soedarto SH. Tembalang, Semarang 50275
Civil Engineering, Building, Construction & Architecture

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STUDI EKSPERIMENTAL PERBANDINGAN VARIASI SENGKANG MIRING TERHADAP KUAT GESER BALOK BETON BERTULANG Arif Rachman Subiantoro; Rifa Aulia Bakri; Sri Tudjono; Han Ay Lie
Jurnal Karya Teknik Sipil Volume 2, Nomor 3, Tahun 2013
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Shear reinforcement in beams commonly known as reinforcement stirrups, vertical stirrup reinforcement, spiral reinforcement stirrups and stirrup bones tilted according to SNI-03-2847-2002 of the three types of vertical stirrup reinforcement is more commonly used in the concrete work because of the ease in implementation. For that the research will be carried out experimental studies comparing variations dash angled towards the shear strength of reinforced concrete beams. In this study will be made of 3 pieces slanted stirrups variations, ie sloping concrete beams cross bar welded middle (B2), sloping concrete beams cross bar latches satandar 135 ° (B3), concrete beam welding sloping top corner stirrups (B4) and 1 piece of concrete beams without cross bar that serves as a control beam (B1) with dimensions of beams used 100x200x2200 mm, the tests performed by a single point loading in the middle of the span. Based on the results of the 3 variations slanted stirrups, stirrups with slanting beam welding center (B2) was able to withstand the load Pu = 44.72 KN, shear force Vu = 22.84 KN and beam capacity rose 15.81%, sloping beams with stirrups standard hooks (B3) capable of withstanding the load Pu = 53.625 KN, shear force Vu = 27.29 KN and capacities up 38.89% beams, welded beams with stirrups sloping top corner (B4) capable of withstanding the load Pu = 54.580 KN, shear force Vu = 27.87 KN and beam capacity rose 41.88% of the beam without using stirrups.
PERENCANAAN STRUKTUR JEMBATAN LEMAH IRENG 1 JALAN TOL SEMARANG – SOLO Dimas Prasetyo Nugroho; Sidqi Muhammad; Sri Tudjono; Sukamta Sukamta
Jurnal Karya Teknik Sipil Volume 2, Nomor 4, Tahun 2013
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Lemah Ireng 1 Bridge is located at Semarang – Solo Toll Road Phase I Section Ungaran – Bawen Package V Tinalun – Lemah Ireng. This bridge was constructed due to a deep ravine at Lemah Ireng Village, so necessary this bridge as a part of the toll road. This bridge is designed using prestressed concrete box girder construction. The method of execution is used by balance cantilever with cast in place box girder. The equipment which is used in the work of box girder is traveller. The length of the bridge is 879 m, which is divided into 8 spans. The bridge with length of 879 m requires complex planning in order to obtain efficient results. This bridge has two abutments and seven piers. Design of this bridge began of planning do the pre-dimension on top of the structure. The dimensions of box girder on this bridge are different in each segment with a shape like a parabola. The next step is analyzing loads incurred, including its own weight, additional dead load, traffic load, wind load, and earthquake load. From the results of this analysis is then performed structural analysis with the program SAP2000 to output results axial force, moment, shear, and torsion. The output of it is able to calculated loss of prestressing force, needs of tendon, and reinforcement of box girder. Sub structures are planned with do the pre-dimension of pier and calculating its strength by biaxial bending Bresler method. A Result from these calculations obtained pier reinforcement ratio is 1%. The next step is calculation of abutment with the first step do pre-dimension and calculated strengths and reinforcement needs. The final stage in the planning of this bridge is foundation of abutment and pier calculations. Calculation bore pile using Broms method for calculating moments received by the bore pile. Results from these calculations obtained bore pile reinforcement ratio is 1% for the abutments and pier amounted to 1.5%.
EVALUASI JALAN LAYANG NON TOL PAKET CASABLANCA KUNINGAN-JAKARTA Alan Elang Filtrana; Ester Melina; Sri Tudjono; Ilham Nurhuda
Jurnal Karya Teknik Sipil Volume 2, Nomor 4, Tahun 2013
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Separated Highway Casablanca Package is located at Kuningan, Jakarta. This separated highways is designed using prestressed concrete box girder construction. The method of execution isused by balance cantilever with precast box girder. The tools is used in the work of box girder is launcher gantry. Total spans on the separated highways are 1175 m, which is divided into 24 spans. This separated highways has seven piers. Design of this package began of planning do the pre-dimension on top of the structure and dimensional on this separated highways have the same dimensions. The next stage is analyzing loads incurred. Load analysis is used, the weight of its own, additional dead load, traffic load, wind load, and earthquake load. From the results of this analysis is then performed structural analysis with the program SAP2000. From the analysis of the structure be able to calculated loss of prestressing force, needs of tendon, and reinforcement of box girder. After that, then do the below structural design by the initial step planning a dimension of the pier. In pier use reinforcement ratio is 1,33 times of minimum reinforcement required by analysis. The final stage in the planning of this package is foundation of pier calculations. Calculation bore pile using Broms method for calculating moments received by the bore pile. Results from these calculations obtained bore pile reinforcement ratio is 0,75%.
STUDI EKSPERIMENTAL BALOK BETON BERTULANG BERSENGKANG TERTUTUP TEGAK DENGAN PENYAMBUNG KAIT DAN LAS Alivia Andica Puteri; Nor Hidayati; Sri Tudjono; Ilham Nurhuda
Jurnal Karya Teknik Sipil Volume 3, Nomor 1, Tahun 2014
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

The development of green construction with the goal of developing the world of constructions are growing. Production process of making steel reinforcement gives negative impact to the environment, such as air pollution, hazardous chemicals and energy waste. This study examines the effectiveness of using reinforcement stirrups in term of their strength and cost. Vertical stirrups have various connection types, such as hooked stirrups and welding connected stirrups. In this study, 6 beam specimens with 3 stirrups variations were prepared, they are 2 beams with hooked stirrups of 135⁰, 2 beams with stirrups welded at the corner and 2 beams with stirrups welded at the center. Eksperimental results of deep beams without compression reinforcements  show that the maximum load that can be resisted by both the beams with hooked stirrups and corner welded stirrups are comparable. With regard to the cost, replacement of hooked stirrups with corner welded stirrups can save 5-10% of the total steel used for stirrups.
PERENCANAAN STRUKTUR CONVENTION HALL KOTA MARTAPURA KALIMANTAN SELATAN Nandia Tri Pangestika; Dika Dwi Angga; Sri Tudjono; Himawan Indarto
Jurnal Karya Teknik Sipil Volume 2, Nomor 3, Tahun 2013
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Design structure of this building by SNI 03-1726-2010 on this final report are designed inseismic zoning area of Martapura city using the structure frame system method with configuration structure System Bearer Special Moment (SRPMK). The System Bearer Special Moment (SRPMK) election expected to be a story building structure behave ductile, because structureis ductile energy dissipation capacity were large and has a good carrying capacity in the resist earthquake loads. This system is planned to use the concept of strong column weak beam, where the vertical elements of the structure (column) should be stronger than the horizontal elements of the structure (beam), to be plastically formed jointsfirst on the beam. The joints meeting of the beam-column should also be well designed to avoid collapse first. The analysis of the structure of the building by SNI 03-1726-2010 using SAP software help v10 2000 with the results of the analysis are used to determine the fundamental period of the structure and the forces acting on the structure. Fundamental structural period must be limited so that the structure is not very flexible. Results in the forces acting on the structure is used to design the structure of  the building.
STUDI EKSPERIMENTAL PENGARUH PENAMBAHAN RESIN PADA AGREGAT KASAR TERHADAP KEKUATAN BETON Bunga Sri Puspitasari; Muh. Alwi Umar; Sri Tudjono; Ilham Nurhuda
Jurnal Karya Teknik Sipil Volume 2, Nomor 3, Tahun 2013
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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It is well known that compressive strength of concrete is affected by the strength of the constituent materials and the strength of interfacial transition zone (ITZ). This research aimed at investigating the influence of the addition of resin on coarse aggregates on the strength of concrete. The resin investigated in this research was unsaturated polyester resin. The resin was combined with methanol with different composition of 1:0; 1:0.25; 1:0.5; and 1:1. The tests conducted in this investigation were pull off test, shear test and compression test. Test results show that all specimens with resin exhibit lower strength values compared to specimens with no resin. The compressive strength of concrete silinders with resin coated aggregates were obtained to be 16.26 MPa and 3.14 MPa, while the compressive strength of normal concrete ( with no resin) was 29.99 MPa.
Co-Authors Alan Elang Filtrana Alivia Andica Puteri Arif Rachman Subiantoro Bunga Sri Puspitasari Dika Dwi Angga Dimas Prasetyo Nugroho Ester Melina Han Ay Lie Himawan Indarto Ilham Nurhuda Muh. Alwi Umar Nandia Tri Pangestika Nor Hidayati Rifa Aulia Bakri Sidqi Muhammad Sukamta Sukamta