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JURNAL KARYA TEKNIK SIPIL
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Articles 35 Documents
Search results for , issue "Volume 2, Nomor 4, Tahun 2013" : 35 Documents clear
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%.
PERBANDINGAN METODE PEJADWALAN PADA PROYEK YANG BERSIFAT LINIER (STUDI KASUS MENGGUNAKAN METODE BAR CHART, NETWORK PLANNING, DAN TIME CHAINAGE DIAGRAM) Febri Triwibowo; Imron Roni Wijaya; M. Agung Wibowo; Rudi Yuniarto Adi
Jurnal Karya Teknik Sipil Volume 2, Nomor 4, Tahun 2013
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

The implementatation of the construction works especially on linear construction usually have challenge to plan an effective schedule without disruptionand cost efficiency with outreducing the quality. Several methods of  project scheduling includes: Bar Chart, Network Diagram (CPM, PDM), and linear scheduling method (Time Chainage Diagram).The purposes of this study are to find the general scheduling method of project, to compare and to perform simulation of each type of schedule, and to analyze the strengths and weaknesses of each type of schedule. Data of project schedule was collected from 3 linear projects.  Analysis,  elaboration  and  comparison  of existing schedule was performed. Bar Chart is converted into CPM, PDM and Time Chainage Diagram. The results showed that the Bar Chart is still commonly used in construction projects, Network Diagram are proven to be powerful scheduling and suitable  for  complex  projects because it has the reliability in showing the  relationship  among  activities and the critical path of project activities, and  Linear  scheduling method  are  suitable  for  linear project  because  it can  detect  obstacles or conflicts  among  activities.  To  over come weaknesses of eachtype of  schedule, it should be combined  among    types of  schedule. Recommendations for further study are the use of each type of schedule which is suitable with characteristic of projects, and for further more it could be need more study to improvement the feature of time scheduling methods.
PERENCANAAN BANGUNAN PENGENDALI SEDIMEN KALI PUTIH KM 16,7 YOGYAKARTA Dwi Indra Setyawan; Nanda Anjariwibowo; Salamun Salamun; Hari Budieny
Jurnal Karya Teknik Sipil Volume 2, Nomor 4, Tahun 2013
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Mount Merapi (2980) meters above sea level, one of the most active volcanoes in the world, located in Central Java Province. Mt. Merapi last erupted in 2012, producing a large number of volcanic materials which has highly destructive force. This flow happened on almost all of the rivers in Mt. Merapi hillside, such as Kali Putih for example. Kali Putih has a big potential of damage because of its location, near rural areas. Reffering to the above mentioned, the preventive effort of disasterous effect need to be done to decrease the damages by building Sabo Dam. The data we need to design it are hydrological data such as annual daily rainfalls data and Kali Putih catchment area map, soil investigation data, a topographic map and geometric river map. Those data will be processed and used as the basis for designing the Main Sabo Dam, Sub Sabo Dam, Apron and etc. After the process of designing is completed, the results are: total height of Main Dam is 8,55 meters, total height of Sub Sabo Dam is 2,79  meters, length of Apron is 6,1 meters, sediment storage capacity is 8.100 m3, the total cost is Rp.1.470.615.000,00 (including VAT) and the construction period is 14 weeks. The construction of Sabo Dam will be more optimal if it is accompanied by a good maintenance system done by the related agencies, so that the percentage of the damaged covering areas will decrease significantly.
KAJIAN PERILAKU RUPTURE MELALUI SIMULASI NUMERIK Indriyantho, Bobby Rio; Pamungkas, Aditya Sage; Lie, Han Ay; Sukamta, Sukamta
Jurnal Karya Teknik Sipil Volume 2, Nomor 4, Tahun 2013
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Concrete is very common material used in reinforced concrete structure. There are several behaviors that influence its performance to the structure since its nonlinear behavior (Nawy, 1998). Nonlinear concrete behavior, besides can be obtained by experimental test result in laboratory, also can be conducted with one of the numerical simulation approach, namely finite element method. Based on the case, it will be conducted numerical modeling of concrete material with input the nonlinearity and orthotropic of concrete. Load-displacement response of concrete without reinforcement at small loading tends to linear then will be nonlinear when enters the cracking zone. Möhr and Kupfer failure criteria are used to evaluate the failure in concrete beam. Validation is a step conducted to view the validity from numerical study result that will be used as tools. Data resulted from experimental and numerical study is validated with research of Purkiss-Blagojevic (1993). This FEM program can be used as tools to analyze load-displacement response of concrete beam test specimen without reinforcement and predict the initial crack pattern happened.
PERENCANAAN BANGUNAN PELINDUNG PANTAI TAMBAKHARJO, SEMARANG candrawati Mareta Prawarti; Wahyu Setia Prihardhani; Dwi Kurniani; Priyo Nugroho P.
Jurnal Karya Teknik Sipil Volume 2, Nomor 4, Tahun 2013
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Tambakharjo coast located in Semarang. Tambakharjo coast damaged a shoreline setback. Construction of coastal protection building a seawall is one way to prevent more serious damage to the coast. Construction of coastal protection building is expected to maintain the shoreline. Analysis of wind data, tidal data, and soil data is needed to determine height and period of waves, sea level value, and the carrying capacity of the soil in the planning of coastal structures. Besides that, flow analysis using model ADCIRC in program SMS (Surface-water Modelling System) and forecasting changes of shoreline with program GENESIS (Generalized Model for Simulating Shoreline Change) is used to specify an alternative coastal structures within the next few years. Selection of coastal structures using the Analysis Hierarchy Process (AHP). Based on the AHP scoring system obtained the highest priority value that is coastal structure with seawall construction. Seawall construction is planned along the Tambakharjo coast 1200 and with a Mercu elevation  3 meters to reduce the creeping wave.
KAJIAN METODE PELAKSANAAN SISTEM POLDER KALI BANGER dwi Subandriyani; Muchammad Lutfian Nabil; Suharyanto Suharyanto; Hari Nugroho
Jurnal Karya Teknik Sipil Volume 2, Nomor 4, Tahun 2013
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Banger river polder system which has 524 ha area is a part of Semarang Centre region drainage system. Banger river polder system is located in East Semarang region and North Semarang region. It is a crowded area with many problems. This area which has low level at soil supporting capacity is flooded by rob almost everytime. So it causes land subsidence every year. On the other hand, land use is another serious problem there with many houses cover the area without proper access road. Construction method evaluation of procurement and pump installation and retention pond and closer dike construction in Banger river polder system need to adapt more further with the real condition on site. Procurement and pump installation works will not be affected significantly by Banger river polder system site location. So that, in retension pond and closer dike works need a construction method which uses dewatering work, temporary dike construction, and determining the hauling route. These works combination produce an effective construction method, construction method using dewatering and bailey bridge. This construction method is a combination between dewatering work and the use of bailey bridge which is based on workability, reducing cycle time, and the economical one. This combination is the most effective, based on work influence indicators which reach 27,05%
EVALUASI STABILITAS LERENG YANG TELAH DIPERKUAT PADA JALAN TOL SEMARANG – SOLO SEKSI V UNGARAN BAWEN Khrisna, Rama Harya; Atmanto, Indrastono Dwi; Wibowo, Hardi
Jurnal Karya Teknik Sipil Volume 2, Nomor 4, Tahun 2013
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Semarang – Solo toll roads, Ungaran Bawen Section was built to support economic growth in Semarang – Solo and its surroundings. The road across the hills and valleys that contain clay shale. Catastrophic landslide and slope occurs in toll roads at Semarang – Solo STA 19+525. This undergraduate thesis is about the stability of slopes on toll roads, mechanisms and mitigation. The analysis involves conditions which the motions of the soil on the slope because of slope unstability, manual calculation slope stability with Fellenius methods, geotechnical analysis and the use of retaining wall as an alternative method of reinforcement. Geotechnical analysis using Plaxis finite element software. Plastic and elastic model of Mohr-Coulomb failure criterion was chosen as a model soil. Analysis showed that the most optimum avalanche  mitigation is to install a retaining. By using retaining wall combine, minimum slope safety factor be increased and reached 1,541.
STUDI EKSPERIMENTAL PENGARUH PENAMBAHAN ABU SEKAM PADI NANO DAN BAHAN TAMBAH SUPERPLASTICIZER TERHADAP KUAT TEKAN BETON Putri Ardiyati; Mira Budi Octaviani; Purwanto Purwanto; Parang Sabdono
Jurnal Karya Teknik Sipil Volume 2, Nomor 4, Tahun 2013
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

This research aimed to investigate effect of using nano materials rice husk ash and superplasticizer admixture to concrete compressive strength. Nano rice husk ash used as subtitute of pozzolan portland cement. Production of nano rice husk ash use Planetary Ball Milling with  duration of  milling  for 1 hour. To determine effect of using nano materials rice husk ash dan superplasticizer admixture used variation percentage of materials nano rice husk ash such ash 5%, 10%, and 15% with or without superplasticizer admixture. Tests were conducted  at 28 days with uniaxial loading (one-way). Result of this research indicate normal concrete without substitution of nano rice husk ash and without superplasticizer have highest of concrete compressive strength. Concrete with rice husk ash decreased in compressive strength because of rice husk ash absorb much water and increase the length of  hydration process of cement in concrete mix. Although there is a decrease through this research is expected, nano techonology in civil engineering can more developed.
ANALISIS KAPASITAS AIR SIDE RENCANA PENGEMBANGAN BANDAR UDARA INTERNASIONAL AHMAD YANI SEMARANG Muchammad Ulil Aidi; Yahya Anas; Bagus Hario Setiadji; Wahyudi Kushardjoko
Jurnal Karya Teknik Sipil Volume 2, Nomor 4, Tahun 2013
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Ahmad Yani Airport in Semarang is one of the international airport in the Province of Central Java . International airport status is used because there is a flight plan to foreign country and Ahmad Yani Airport worthy to serve the airlines. However, the facilities and services that exist not suitable for international-class airport. Therefore, these airports continue to be developed in order to serve the demand for overseas flight, both domestic and international flights increased from year to year. It can be from Semarang and head to Semarang. The development includes the development of the infrastructure of the airport land and air sides which are divided into two phases. With the completion of the first phase of development, Ahmad Yani Airport will have a wider terminal in the North of  runway, ample parking space, covering an area of 61.344 m2 apron and two taxiways. Development of second phase will make Ahmad Yani Airport has an area of 78.313 m2 apron that can accommodate 12 Boeing 737-900 aircraft class and 8 pieces taxiways, 2 pieces exit taxiways and 1 piece parallel taxiway. This Final Thesis will analyze the air side of the Ahmad Yani airport that has runway formed, taxiway and apron at the existing condition, the development of the first phase and the second phase of development. This analysis will have predicted number of passengers in the plan of year which will then be converted into the number of aircraft at busy times. Results of the predicted number of aircraft will be on an analysis for the air side capacity of the Ahmad Yani Airport in the development plan that has been done by Ahmad Yani airport, so that it will be known the air side ability of the Ahmad Yani Airport to the demand in the plan year. This analysis refers to the rules that set up by FAA. Results of the analysis showed that when the condition of existing air side in the form of runway, taxiways are still able to serve the demand of flight but the capacity of the apron are not able to serve so for prediction of the next 5 years in the first phase of development there will be over capacity. However, with the development at the Ahmad Yani Airport, aircraft servicing predictions for the next 5 to 10 years can already be served by a taxiway and apron but rapid exit taxiway should be built for runway’s component, so that it can increase runway capacity at peak hours.
STUDI KOMPARASI ANTARA PRACETAK MASIF DAN FLY SLAB STUDI KASUS : STRUKTUR GEDUNG RUSUNAWA SURAKARTA Aria Wirawan; Budi Wicaksono; Nuroji Nuroji; Windu Partono
Jurnal Karya Teknik Sipil Volume 2, Nomor 4, Tahun 2013
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Fly slab is one of the precast concrete slab technological development that has been researched and patented by Ir . Sulistyana in 2011. The concept is how to reduce the mass of precast concrete slab with makes ribs on the concrete slab. To minimize the volume of concrete plate and while maintaining tensile area to makes the style transfer mechanism of concrete to reinforcement or otherwise, are expected to reduce the mass of the structure without reducing strength.Comparative study will be conducted in the final project based on Planning of Building Construction Rusunawa in Surakarta, Central Java 2013. This comparative study is done by compare the results of the structural design Rusunawa existing Surakarta and ready to build using conventional precast concrete massive, with a new structure plan Rusunawa Surakarta with using fly slab as material plate, beam and column structural elements using conventional concrete.Based on the analysis results, showed reduction in the volume of concrete and reinforcement elements beam and coloumn Rusunawa Surakarta structure is 20,25% and 6,3 %. Reduction reaction in the vertical structure of the Rusunawa Building in Surakarta is 16,93%.

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