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INDONESIA
JURNAL KARYA TEKNIK SIPIL
Published by Universitas Diponegoro
ISSN : -     EISSN : -     DOI : -
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
Arjuna Subject : -
Articles 56 Documents
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Search results for , issue "Volume 4, Nomor 4, Tahun 2015" : 56 Documents clear
PENINGKATAN FUNGSI BENDUNG PLUMBON-SEMARANG SEBAGAI PENGENDALI BANJIR Danang Dwi Admojo; M. Kurnia Hermawan; Salamun Salamun; Dwi Kurniani
Jurnal Karya Teknik Sipil Volume 4, Nomor 4, Tahun 2015
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Flood happened recently is already a thing happened each time in various regions in Indonesia, not least in Semarang, especially in the area Mangkang. Improved function of the weir Plumbon previously only built for irrigation becomes a flood control dam is expected to reduce or cope with floods that occur each year in these areas. Plumbon river has a total length of 14.123 km with the average slope of the river (i) 0.0165. Plumbon watershed has an area of 20.36 km2. Planning weir Plumbon increased functionality using rainfall data of the last 12 years (2002 - 2014) with 3 stations namely rain Middle Reef (33F), Mangkang Reservoir (41C), Kaligading (20). Calculation of flood discharge plan obtained with a return period of 20 years (Q20) of 365.015 m³ / s with HSS method Gama I. Enhanced functions for flood control is done by raising the dam height lighthouse, so the catchment area will increase and may decrease the discharge passing through the dam , Plumbon weir using high lighthouse beacon round with 8 m wide and 17 m effective. Plumbon weir is planned to advance along the floor of 9.0 m and use a pool megrim with length of 16.5 m with a thickness of 2.5 m pool floor megrim selected while the pool is the type USBR type III.
PERENCANAAN PENGGANTIAN JEMBATAN JUWET KABUPATEN PEMALANG Andhy Satriya Wardhana; Mohamad Irzam Hasani; Moga Narayudha; Siti Hardiyati
Jurnal Karya Teknik Sipil Volume 4, Nomor 4, Tahun 2015
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Juwet Bridge is located approximately one kilometer to the south of Comal Bridge Pemalang District is one of the alternative bridges used when the Comal Bridge collapsed. In this final Juwet Bridge which has a width of only 3 meters is designed with a larger capacity and functioned as an alternative pathway Comal Bridge. Planning on aspects of traffic using a design life of 20 years with the growth of the vehicle based on a linear regression of 642 veh / year and using two scenarios, there are normal conditions (2 Comal Bridge function) and incidental conditions (only 1 Comal Bridge functioning). Initial planning, the alternative pathway using a type 2/2 UD. In normal conditions, the distribution of traffic flow 70% for Comal Bridge and 30% for Juwet Bridge produce a degree of saturation (DS) under 0.75 over the life of the plan. In the incidental conditions, the distribution of traffic flow 60% for Comal Bridge and 40% for Juwet Bridge, DS value is 0.81. Assuming then use 2/2 type UD with 8 meters wide still used. New Juwet Bridge continue to use steel as the structure and the upper structure of reinforced concrete for the structure underneath. Planned implementation within 8 months at a cost of Rp. 36.4 billion. In this final project scope of the planned bridge elements include work for the overall structure of the bridge and approach bridge. Given this new Juwet Bridge when congestion occurs on the Pantura line around Comal Bridge, the bridge is able to be an alternative pathway in servicing and reducing the burden of most of the traffic flow on the Pantura line.
PERENCANAAN SUDETAN UNTUK PENANGGULANGAN GERUSAN TEBING DI SUNGAI LUSI Aedo Radewa Nayapada; Suwarto Hari Sulakso; Pranoto Sapto Atmojo; Hari Nugroho
Jurnal Karya Teknik Sipil Volume 4, Nomor 4, Tahun 2015
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Flood is a condition in which the rain water runoff is not able to be streamed by a river due to water discharge flow exceeds the capacity flow over to to areas that are not as functions. The problem of flooding that occurred in the village of Kendayaan Ngawen Blora caused by Lusi River overflow. At the area meandering river channel (meander) so that when the flood discharge causes overflow and bank scouring. To overcome these problems planned for river shortcut and checkdam. Shortcut serves to divert the flow of water so it does not happen again outburst floods. While checkdam serves to reduce bank scouring due to the speed that is too high after the river shortcut design. The maximum discharge of the river with a certain return period is calculated by using the method of Melchior, FSR Java-Sumatra, Flood Marking and Passing Capacity. Obtained from the calculation of flood discharge plan (Q50) of 622 m3/s. Then proceed calculations using HEC-RAS software to determine the impact of the flood discharge plan to the cross section of the river, so that it can be seen a part of the river that needs to be repaired. Part of the river needs to be fixed is at (STA L.610-L.613) along the ± 810 m. The repair process is done by river shortcut design while maintaining the existing river channel. Flood discharge flow divider discharge shared use of the building to the proportion of 500 m3/s in shortcut and 122 m3/s on existing groove. With the second building above expected flood in the village Kendayaan can be controlled.
STUDI EKSPERIMENTAL PENGARUH TEMBAGA TERHADAP KUAT TARIK BAJA Muhammad Jailani Muslim; Ageng Habrur Fahmi; Purwanto Purwanto; Arif Hidayat
Jurnal Karya Teknik Sipil Volume 4, Nomor 4, Tahun 2015
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Steel is a metal alloy composed of iron as main element and carbon as an element of reinforcement. Carbon element play a role in improving the quality of the steel. Combined steel to can fix the ability of tensile strength the steel. In this research, combine carbon steel with copper. Copper alloy steel expected to increase the tensile strength of the steel. In this research we use sample with the non alloy steel (TP), alloy steel with 0,5% copper alloy (FeCu-5), and alloy steel with 1,0% copper alloy (FeCu-10), testing that will do in the form of composition testing, hardness testing, and tensile testing. The steel tensile testing we get the data of stress,strain,modulus elasticity,and ductility. The result obtaine from this research is 1% copper alloy increases the ultimate tension by 42,42% compared with non alloy steel. While there is decrease in the ultimate strees by 0,5% copper alloy by 30,98% compared with non alloy steel.
ANALISA MANAJEMEN RISIKO PADA PROYEK PDAM SEMARANG (STUDI KASUS: PROYEK PEMIPAAN IPA KALIGARANG SEMARANG BARAT) Evy Agustina Purba; Monica Ade Kurnia B.; Jati Utomo Dwi Hatmoko; Frida Kistiani
Jurnal Karya Teknik Sipil Volume 4, Nomor 4, Tahun 2015
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Every construction project especially for PDAM project which responsible for water distribution has some risk that affect the construction. One of the common problems which became risk for the PDAM project is the pipe leakage level. The average of indonesia’s pipe leakage level is more than 30%. This research is about risk management of IPA Kaligarang piping project analyzing based on Work Breakdown Structure (WBS). The aim of this research is to identify, analyze, evaluate and manage the existing risk of IPA kaligarang piping project. The matter of this research is limited for the construction phase. IPA Kaligarang Piping project is a project of West Semarang PDAM. Based on identification and risk assessment, IPA Kaligarang West Semarang PDAM piping project had 23 risks which is found almost at each Work Breakdown Strukture(WBS) project. For then more through analyzing and evoluation process, the result of this research is the risks of PDAM projects consist of two categories. The categories are moderate risk which has 14 work items (39%) and low risk which has 74 work items (61%). The whole 23 risks that found can be managed, like permitting risk can be managed by asking government approval, The risk of workers excalation or reduction can be managed by making the barchart of workers or reschedule, etc. The contractor is the one who responsible of the whole risk, and there’s no high risk that will obstruct the construction of IPA Kaligarang West Semarang piping project.
KAJIAN REAKTIVASI JALAN REL DI TERMINAL PETI KEMAS SEMARANG Pratiwi, Arlisa; Ningrum, Inovia Cahya; Kushardjoko, Wahyudi; Indriastuti, Amelia Kusuma
Jurnal Karya Teknik Sipil Volume 4, Nomor 4, Tahun 2015
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Along with increasing amount of using container as distribution of goods, Central Java Provincial Government with PT. KAI and PT. Pelindo III planned reactivation of railway to distribute freight container. This meant that distribution of container on highway can be reduced, so the density and number of traffic accidents also the use of fuel can be reduced. The study aims to identify the traffic of containers, determine the origin-destination, cargo and container tonnage, predict future container needs, and design the railway construction. Methods of analysis were GDP data processing using shift share analysis and container demand prediction using regression analysis. Railway construction planning refers to PD no.10/1986 and other applicable guidelines. The result showed that container traffic at Semarang Container Terminal is constantly increasing. In 2013, the amount of movement of export-import reached 524.139TEUs, divided into 3 regions of origin/destination, western (24.43%), southern (53.23%) and eastern (22.34%). From the results of shift share analysis and regression, it is predicted that 30years later, container demand will reach 47.254.973Ton/Year. With such loads, the railroad is classified into first class, with maximum speed 60km/h, using R.54 types with 250m length, connected by bolts and welding, fastened by double elastic Pandrol type, and using prestressed concrete pads. Sub-ballast thickness needed is 20cm. Railway crossing is accomodated using wessel no.10.

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