Sri Tudjono
Departemen T. Sipil FT. UNDIP Jl. Prof. H. Soedarto SH., Tembalang, Semarang 50275

Published : 40 Documents
Articles

Found 40 Documents
Search

EVALUASI STRUKTUR DENGAN PUSHOVER ANALYSIS PADA GEDUNG KALIBATA RESIDENCES JAKARTA (The Evaluation Of The Structure by Using Pushover Analysis of Kalibata Residences Building Jakarta) Utomo, Cipto; Susanto, Rokhmad Irfan; Tudjono, Sri; Wibowo, Hardi
JURNAL KARYA TEKNIK SIPIL volume 1, Nomer 1, tahun 2012
Publisher : Jurusan Teknik Sipil Fakultas Teknik Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (487.98 KB)

Abstract

ABSTRAK Analisis pushover merupakan sebuah sarana untuk memberikan solusi berdasarkan Performance Based Seismic Design yang pada intinya adalah mencari kapasitas struktur. Prosedur analisis pushover dengan memberikan beban statis dalam arah lateral yang ditingkatkan secara bertahap (incremental) hingga mencapai target displacement tertentu atau mencapai keruntuhan. Penulisan ini dilakukan untuk mengetahui perilaku seismik struktur dari besarnya daktilitas aktual dan faktor reduksi gempa aktual. Pola pembebanan lateral yang diberikan pada analisis pushover adalah beban lateral multi-modal, masing-masing gaya dari analisis modal dilakukan respons kombinasi dengan metode SRSS (Square Root of the Sum of Square). Dari hasil analisis pushover didapatkan daktilitas (µΔ) aktual arah x (positif) = 3,85, arah x (negatif) = 3,96 dan daktilitas (µΔ) aktual arah y (positif) = 2,97, arah y (negatif) = 3,15. Faktor reduksi gempa (R) aktual arah x (positif) = 6,2, arah x (negatif) = 6,3 dan faktor reduksi gempa (R) aktual arah y (positif) = 4,7, arah y (negatif) = 5,0. Hal ini menunjukkan bahwa daktilitas (µΔ) aktual dan faktor reduksi gempa (R) aktual yang terjadi sesuai dengan SNI 03-1726-2002 (µm = 4,0 dan Rm = 6,5 untuk sistem ganda yang terdiri dari struktur dinding geser dan SRPMM beton bertulang). Kata kunci : analisis pushover, kurva kapasitas           ABSTRACT Pushover Analysis is a means to provide solutions based on Performanced Based Seismic Design, which in essence is to find the capacity of the structure. Pushover analysis procedure to provide a static load in the lateral directions is increased gradually (incremental) until it reaches the target displacement or achieving certain collapse. In the analysis is performed to determine the seismic behavior of structure and the actual amount of ductility and reduction factor of the actual earthquake. Lateral loading pattern given in the pushover analysis is the burden of multi-modal lateral, each style of respone to the combination of modal analysis performed by the method of SRSS (Square Root of the Sum of Square). The result obtained from pushover The results obtained from pushover analysis ductility (μΔ) the actual direction of x (positive) = 3.85, x direction (negative) = 3.96 and ductility (μΔ) actual y direction (positive) = 2.97, y direction (negative) = 3.15. Seismic reduction factor (R) the actual direction of x (positive) = 6.2, x direction (negative) = 6.3 earthquake and the reduction factor (R) actual y direction (positive) = 4.7, y direction (negative) = 5.0. This shows that the ductility (μΔ) and the actual reduction factor of the earthquake (R) which occurs in accordance with the actual SNI 03-1726-2002 (μm = 4.0 and Rm = 6.5 for the dual system consisting of a shear wall structure and SRPMM reinforced concrete). Keywords : pushover analysis, capacity curve.
KAJIAN PERAN TULANGAN PADA GESER INTERFACE ANTARA BETON LAMA DAN BARU Devi, Fitrilia Ulfah Karina; Mulyawati, Riana Dwi; Tudjono, Sri; Wibowo, Hardi
JURNAL KARYA TEKNIK SIPIL volume 1, Nomer 1, tahun 2012
Publisher : Jurusan Teknik Sipil Fakultas Teknik Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (318.772 KB)

Abstract

ABSTRAK Pada pekerjaan perbaikan atau perkuatan struktur dengan melakukan pengecoran beton baru yang melekat pada bidang beton lama akan membentuk semacam lapisan interface beton. Penelitian mengenai bagian interface dilakukan oleh Momayez et al., 2004 dan Hak-Chul Shin et al., 2010. Namun penelitian tersebut belum memasukkan parameter peran tulangan pada interface dalam pengujiannya. Sedangkan penelitian ini mengkaji peran tulangan terhadap kekuatan geser pada interface dan pola retak yang terjadi. Benda uji yang digunakan berbentuk kubus berdimensi 20 cm x 20 cm x 20 cm sebanyak 30 buah yang tersusun dari dua bagian, yaitu beton lama sebesar 2/3 bagian dan beton baru sebesar 1/3 bagian dari kubus benda uji. Variasi beda umur pengecoran terdiri dari 7, 14, dan 28 hari. Variasi bentuk dan diameter tulangan terdiri dari bentuk Tulangan I dan Tulangan U dengan diameter 8 mm dan 10 mm. Dari penelitian disimpulkan bahwa benda uji Tanpa Tulangan mempunyai kapasitas geser paling kecil, sedangkan benda uji dengan Tulangan U memiliki kapasitas geser yang lebih besar dibandingkan dengan Tulangan I. Hal ini dikarenakan penambahan tulangan memberikan pengaruh kekuatan geser yang lebih besar serta Tulangan U bersifat lebih kaku, interlocking dan lekatan antara beton dan tulangan lebih kuat dibandingkan dengan Tulangan I. Kata kunci: interface, kapasitas geser, peran tulangan, pola retak ABSTRACT Alpha In the work of repair or strengthening the structures by casting new concrete inherent in the old concrete surface will form concrete interface. Study on the interface has already been done by Momayez et al., 2004, and Hak-Chul Shin et al., 2010. However, these studies did not include the interface parameters of the influence of steel reinforcement in the test yet. While this study examines the influence of steel reinforcement to the shear strength at the interface and the crack patterns that occur. Specimens used cuboid dimensions 20 cm x 20 cm x 20 cm 30 pieces are composed of two parts, the old concrete for 2/3 parts and new concrete for 1/3 part of the cube specimen. Variations apart in age casting consisting of 7, 14, and 28 days. Variations in the shape and diameter of the steel reinforcement consists of I Reinforcement and U Reinforcement with diameters of 8 mm and 10 mm. From the study concluded that the specimen without steel reinforcement has the smallest shear capacity, whereas specimens with U Reinforcement has a shear capacity greater than I Reinforcement. This is due to the addition of steel reinforcement influence greater shear strength and U Reinforcement is more stiff, interlocking and bonding between concrete and reinforcement stronger than I Reinforcement. Keyword: interface, shear capacity, influence of steel reinforcement, crack pattern
EVALUASI JALAN LAYANG NON TOL PAKET CASABLANCA KUNINGAN-JAKARTA Filtrana, Alan Elang; Melina, Ester; Tudjono, Sri; Nurhuda, Ilham
JURNAL KARYA TEKNIK SIPIL Volume 2, Nomor 4, Tahun 2013
Publisher : Jurusan Teknik Sipil Fakultas Teknik Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (345.943 KB)

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%.
PERENCANAAN STRUKTUR CONVENTION HALL KOTA MARTAPURA KALIMANTAN SELATAN Pangestika, Nandia Tri; Angga, Dika Dwi; Tudjono, Sri; Indarto, Himawan
JURNAL KARYA TEKNIK SIPIL Volume 2, Nomor 3, Tahun 2013
Publisher : Jurusan Teknik Sipil Fakultas Teknik Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (455.377 KB)

Abstract

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.
PERENCANAAN STRUKTUR JEMBATAN LEMAH IRENG 1 JALAN TOL SEMARANG – SOLO Nugroho, Dimas Prasetyo; Muhammad, Sidqi; Tudjono, Sri; Sukamta, Sukamta
JURNAL KARYA TEKNIK SIPIL Volume 2, Nomor 4, Tahun 2013
Publisher : Jurusan Teknik Sipil Fakultas Teknik Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (449.473 KB)

Abstract

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%.
Perencanaan Jembatan Leho Kawasan Pesisir Kabupaten Karimun, Kepulauan Riau, dengan Struktur Jembatan Pelengkung (Arch Bridge) Winarno, Adhyta Narendra; Pakpaham, Alfred Nobel; Tudjono, Sri; Nuroji, Nuroji
JURNAL KARYA TEKNIK SIPIL Volume 2, Nomor 4, Tahun 2013
Publisher : Jurusan Teknik Sipil Fakultas Teknik Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1213.346 KB)

Abstract

The Design of Leho Bridge in Karimun Coastal Area, Riau Islands, based on the needs of a transportation infrastructure that connecting the Old Town Area with Sei Bati Airport. This Bridge Structure is designed by using an Arch Bridge Structure considering that it’sfunction also as a monumental building.Based on the results of highway capacity analysis, the bridge’s width designed as 9,00 m with 2/2 UD type which the pavement is 7,00 m width and each of the pedestrians are 1,00 m width. Then the bridge’s  span is determined as 60,00 m, based on the gulf’s geometry and the boat’s traffic under the bridge. The Clearance below the bridge is affected by the highest water level and the boat’s heightwhich on this case is taken as 11,00 m.Through the design and the calculation with Load and Resistance Factor Design’s method we found the section of the arch rib is a box formed steel profile which size is 900.900.40.40 with the yield stress is 290 MPa. While the main beam using a box formed steel profile which size is 900.400.30.30 with the yield stress is 290 MPa. The foundation system is designed by using a group of sheet piles which the diameter is 60 cm as much as 24 piles on each abutments.
EVALUASI JALAN LAYANG NON TOL PAKET CASABLANCA KUNINGAN-JAKARTA Filtrana, Alan Elang; Melina, Ester; Tudjono, Sri; Nurhuda, Ilham
JURNAL KARYA TEKNIK SIPIL Volume 2, Nomor 4, Tahun 2013
Publisher : Jurusan Teknik Sipil Fakultas Teknik Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (12.656 KB)

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 PENGARUH PENAMBAHAN RESIN PADA AGREGAT KASAR TERHADAP KEKUATAN BETON Puspitasari, Bunga Sri; Umar, Muh. Alwi; Tudjono, Sri; Nurhuda, Ilham
JURNAL KARYA TEKNIK SIPIL Volume 2, Nomor 3, Tahun 2013
Publisher : Jurusan Teknik Sipil Fakultas Teknik Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (502.553 KB)

Abstract

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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (983.163 KB)

Abstract

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.
EVALUASI JALAN LAYANG NON TOL PAKET CASABLANCA KUNINGAN-JAKARTA Filtrana, Alan Elang; Melina, Ester; Tudjono, Sri; Nurhuda, Ilham
JURNAL KARYA TEKNIK SIPIL Volume 3, Nomor 1, Tahun 2014
Publisher : Jurusan Teknik Sipil Fakultas Teknik Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (417.419 KB)

Abstract

Separated Highway Casablanca Package is located at Kuningan, Jakarta. This separated highways is designed using prestressed concrete box girder construction. The erection method is conducted by means of balance cantilever method. The main equipment used in the erection of box girder is launcher gantry. Total length of the separated highways is 1175 m, which is divided into 24 spans. This separated highways has 25 piers. The first step of designing this separated highway is by designing the dimension of the box girder. The next step is analyzing the loads that are predicted to work on the structure, namely load, traffic load, wind load, and earthquake load. Next, structural analysis is carried out to obtain the internal forces and stresses in the structure. The result of the structural analysis is used to calculate loss of prestressing force, needs of tendon, and the reinforcement of box girder. The next step is designing Piers and Foundation. The reinforcement in the piers is 1,33 times of the minimum reinforcement required by analysis. The Foundation uses bore piles and calculated using Broms method.