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Civil Engineering Forum Teknik Sipil
Published by Universitas Kristen Petra Surabaya
ISSN : -     EISSN : -     DOI : -
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
Arjuna Subject : -
Articles 7 Documents
 1 
Search results for , issue "Vol 17, No 3 (2007): SEPTEMBER 2007" : 7 Documents clear
KAJIAN PENANGANAN BANJIR KALI CILIWUNG DKI JAKARTA DITINJAU DARI ASPEK HIDRO-EKONOMI (STUDI KASUS PADA RUAS CAWANG – PINTU AIR MANGGARAI) Waluyadi, Heriantono; Jayadi, Rachmad; Legono, Djoko
Civil Engineering Forum Teknik Sipil Vol 17, No 3 (2007): SEPTEMBER 2007
Publisher : Civil Engineering Forum Teknik Sipil

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Abstract

Every year in a rainy season, flood inundates several areas along Ciliwung River, especially in the Cawang – Manggarai reach. Flood in this reach is caused by land use changing in upstream area and narrower the river width in the downstream area. Several planning will be implemented to reduce the flood, which are normalization with widening river, revetment and dike construction also diversion channel from Ciliwung River to East Banjir Kanal. To determine the benefit of every flood control structure the integrated and comprehensive considerations is required. The study of performance of flood management planning with hydro-economy approach that considers hydrologic, hydraulic and economic aspect is conducted in this study. The aim of this study is to determine the benefit of every flood control structure. Before determining the benefit of flood control structure, the expected annual damage must be calculated, the calculation is based on discharge-probability of exceedence curve, discharge-stage curve and stage-damage curve. The relation from above three curves will be needed for damage-probability of exceedence curve. As a result from this curve the expected annual damage and the benefit of flood control structure can be determined. The results of analysis are that the benefit of flood control structure for normalization, diversion channel with 2,5 m in width gate, diversion channel with 3,0 m in width gate and diversion channel with 3,5 m in width gate are Rp. 20 billion, Rp. 16.1 billion, Rp. 18.9 billion and Rp. 20.1 billion respectively.
EVALUASI DAN PROGRAM PEMELIHARAAN JEMBATAN DENGAN METODE BRIDGE MANAGEMENT SYSTEM (BMS) (Studi Kasus : Empat Jembatan Propinsi D.I. Yogyakarta) Hariman, Ferry; Christady H., Hary; Triwiyono, Andreas
Civil Engineering Forum Teknik Sipil Vol 17, No 3 (2007): SEPTEMBER 2007
Publisher : Civil Engineering Forum Teknik Sipil

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Abstract

Bridge is among the important part in transportation system. If the bridge damage or collapse it will definitely affect the transportation and distribution of human and goods. Thus it is very important to maintain bridge appropriately. Accordingly Bridge Management System (BMS) is a standard mechanism to evaluate condition and function of the bridge. The BMS also can be used to decide necessary treatment to maintain the bridge in specific circumstances. Further more Computer-Based BMS combined with integrated information system can shows us the priority scale to manage the bridge maintenance. But the visual assessment of bridge is a necessary step to evaluate general conditions of the bridge. This research conducted in four provincial bridge in Yogyakarta, which are Srandakan Bridge, Tinalah Brigde, Kebon Agung Brigde, and Glagah Brigde. Data from some other provincial brigdes were also included as a comparison. The evaluations is carried out by imposing 5 series of questions into the object (the damage element of the brigde). Then each element is weighted by point 1 and 0 according to its damage level from the lowest (level 5) until the highest (level 1), which mean the bridge is completely collapse. Its element or groups of element were weighted from 0 to 5 which 5 represent total score of 5 categories. The categories are Structure(S), Level of Damage (R), Damage Volume (K), Element Function (F) and Damage Affect (P). Assessment on the conditions, technical screening and economical evaluations, for Srandakan Bridge, Tinalah Brigde, Kebon Agung Brigde, and Glagah Brigde, resulting the following conditions: 4 (critical – replacement – priority scale 1), 3 (heavily damage – rehabilitation on waterway – priority scale 36), 3 (heavily damage – rehabilitation on upper structure – priority scale 23). Maintenance cost in the economic evaluation aspect is the estimation cost, not the real cost.
FORMULAS1 SISTIM PIPA BERPORI BAWAH TANAH DAN PENERAPANNYA Nasjono, Judi K.; Yuwono, Nur; Triatmadja, Radianta
Civil Engineering Forum Teknik Sipil Vol 17, No 3 (2007): SEPTEMBER 2007
Publisher : Civil Engineering Forum Teknik Sipil

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Abstract

One advantage of saline water intrusion phenomena is that saline water may be obtained from shallow well close to coastline. The method is friendly to the environment. Shallow well of depth less than 40 times of ground water height measured from seawater level produce a small amount of saline water. Additional saline intrusion discharge may be obtained by installing seaward horizontal perforated pipe at the bottom of well. Research of seepage discharge trough perforated pipe has been done using physical model with tree variation of pipe diameter. Each pipe was varied in length, perforation diameter, and gap of perforation. They were placed at three various depths under sand surface. To simulate the tidal fluctuation there was four variation of water level. Discharge was obtained from all model combination. The result of the research is a formula that was derived from Darcy formula. The formula could be useful to design. It indicates that there are correlation between depth of pipe burial, pipe length, pipe diameter, head, porosity of pipe and discharge
CANDI PRAMBANAN PASCA GEMPA BUMI Suryolelono, Kabul Basah
Civil Engineering Forum Teknik Sipil Vol 17, No 3 (2007): SEPTEMBER 2007
Publisher : Civil Engineering Forum Teknik Sipil

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Abstract

Prambanan Temple area was partially destroyed by Yogyakarta Earthquake on May 27th, 2006. The earthquake caused a lot of parts of temple to break and fall to pieces, but entirely the structure of the temple still stand, although it looks like wrapping. The mystery of Prambanan Temple is interesting to be investigated from geotechnical approach, for structural stability of the temple. The research was conducted by doing field investigation, consisted of boring and soil sampling, combined with geo-electrical and geo-radar investigation inside the area of the temple, for knowing the foundation structure conditions. The available secondary data of physical and mechanical properties of soil were obtained from laboratory investigations. Evaluation was conducted for soil layer and the location of groundwater level beneath the temple. From the observation results, it can be seen that the depth of original soil is of -14,00 m, from the yard of the temple, and bodies of the temple are located white stone (tuff) block of 8,00 m thick. The tuff block layer acts as a foundation. Groundwater level was found at the depth of 11,20 m from the yard of the temple. Under the foundation of the temple, there is a 6,00 m thick of compacted coarse sand layer, acts as a vibration energy damper.  
STUDI PENANGANAN BENCANA GEMPA DI BANTUL 27 MEI 2006 Didirianti, Desneri; Kironoto, Bambang Agus; Nurrochmad, Fatchan
Civil Engineering Forum Teknik Sipil Vol 17, No 3 (2007): SEPTEMBER 2007
Publisher : Civil Engineering Forum Teknik Sipil

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Abstract

On May 27 th , 2006 at 05:53, 57, a 5,9 Richter scale earthquake occurred. Bantul Regency in Yogyakarta Province was the most severe area. However, existing institutions had limited capability to perform a proper disaster management they also failed to generate the community to participate, especially during the emergency respose period. Therefore, it is required to have an integrated policy for disaster management to meet related parties expectations and to conduct more optimum disaster management. The objective of this study is to obtain best alternatives in handling disaster using the Decission Support System (DSS) eith Analytical Hierarchy Process (AHP) as the method. Three alternatives were analized formatting special office for disaster management (Alternative 1), formatting community based disaster management (Alternative 2), and ascociating the disaster management between interrelated agencies and the local government as the control center (Alternative 3). These alternative were selected based on fuor criterias management, financial, capacity and policy aspect. This study was taken during, the emergency response period performed by SATLAK PBP Bantul. Input for the analysis was questionnaire result given to 120 respondents composing af 30 respondents from bureaucratic element (SATLAK and SATKORLAK PBP members) and 90 respondents from nine villages in three districts. Numeric values were given to each element of the questionnaire result (criterion, sub criterion and alternative). Then, the values were compared to the established comparison scale obtain the lever of interest. Result of this study showed that each criterion of financial, management policy and capacity aspects weighted 0,273, 0,265, and 0,208 respectively. The best alternative of optimum disaster management was alternative 2. The second anf the third were alternative 1 and alternative 3. The community based organizations objective was to improve the people participation in pertaining, preventive, counter measuring and self healing by actively involve in the planning and executing process of disaster management.
THE IMPACT OF TRAVEL PATTERN ON RURAL TRANSPORT DEVELOPMENT Dewanti, Dewanti
Civil Engineering Forum Teknik Sipil Vol 17, No 3 (2007): SEPTEMBER 2007
Publisher : Civil Engineering Forum Teknik Sipil

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Abstract

Jumlah penelitian di Indonesia dalam bidang transportasi perdesaan masih sangat terbatas. Kondisi ini tidak menguntungkan mengingat wilayah perdesaan yang ada sangat luas. Banyak masalah transportasi terjadi di berbagai wilayah perdesaan yang menyebabkan potensi sumber daya yang ada tidak dapat di kelola secara optimal. Program-program pembangunan perdesaan tidak selalu membawa perbaikan besar bila jaringan dan layanan transportasi perdesaan tidak tersedia. Transportasi memungkinkan jasa dan barang dapat diberikan kepada masyarakat perdesaan dan dapat mendukung pencapaian kesejahteraan. Penelitian ini mencoba menjawab sejumlah pertanyaan yang berkaitan dengan pola perjalanan dan dampaknya terhadap pengembangan transportasi perdesaan. Perjalanan terbanyak yang dilakukan masyarakat perdesaan adalah perjalanan dengan jarak dan waktu pendek dengan tujuan bekerja di sawah serta pergi ke sekolah dengan bersepeda atau berjalan kaki. Namun demikian kebutuhan potensial terhadap layanan transportasi cukup tinggi. Dengan demikian dalam kaitan dengan pengembangan transportasi diperlukan peningkatan layanan angkutan umum perdesaan baik dengan layanan formal maupun informal.
IDENTIFIKASI SEBAB-SEBAB KERUSAKAN OPRIT JEMBATAN DAN ALTERNATIF PENANGANANNYA (Studi Kasus: Jembatan Nambo-Bungkutoko Kota Kendari) Subhan A.K., Muh.; Christady H., Hary; Triwiyono, Andreas
Civil Engineering Forum Teknik Sipil Vol 17, No 3 (2007): SEPTEMBER 2007
Publisher : Civil Engineering Forum Teknik Sipil

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Abstract

Nambo–Bungkutoko bridges have had damages at the retaining walls and the piles of soil in bridge ramp clearly marked by the cracks of retaining walls and the deforming piles of soil in the bridge ramp. The structure of retaining walls of soil comprises the stone formations of 44,15 m in distance from Nambo and 40 m from Bungkutoko with various heights of retaining walls ranging from 4,22 m to 8,50 m from Nambo bridge ramp and 4,50 m to 8,20 m from Bungkutoko bridge ramp. To identify the causes of damage, analysis is conducted using Plaxis Program version 7.2. The amount of models analyzed is 9 consisted of 4 for Nambo ramp and 5 for Bungkutoko ramp. From the result sondir test, the type, depth, and properties of soil can be known, i.e. the depth of 0-2 m is soft clay, of 2-4 m clay, of 4-6 m loosen sand, and of 6-10 m solid sand. Whereas to know the solidness of soil in field, the proctor test is modified at damaged locations, each of 2 points and the results the solidness of Nambo ramp of point 01 is 8.01%, and of point 02 84.19%, while that of Bungkutoko ramp of point 03 is 82.68% and of point 04 87.05%. In providing the alternative handling of the ramp on 3 alternative is node to node anchor, bronjong and counterweight The result of the plaxis program is that at the Nambo ramp, the safety factor of STA 0+24,15 is 1.120 and that of STA 0+44,15 is 1.000, while at the Bungkutoko ramp, that of STA 0+25 is 1.169 and that of STA 0+40 is 1.000. A counterweight is chosen caused total, vertical and horizontal displacement is small and safety factor to high then as a result, at the Nambo ramp, the safety factor of STA 0+24,15 is 1.664 and that of STA 0+44,15 is 1.196, while at the Bungkutoko ramp, that of STA 0+25 is 1.694 and that of STA 0+40 is 1.208. Costs needed for all the rehabilitations of the bridge ramp with the counterweight is Rp 467.210.211

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