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INDONESIA
JURNAL KARYA TEKNIK SIPIL
Published by Universitas Diponegoro
ISSN : -     EISSN : -     DOI : -
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
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Articles 592 Documents
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KAJIAN STRUKTUR PENGAMAN PANTAI SIGANDU, BATANG Sidiq Leonanda Widhianto; Dicki Kharisma; Suharyanto Suharyanto; Siti Hardiyati
Jurnal Karya Teknik Sipil Volume 3, Nomor 4, Tahun 2014
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Generally, the problems that occur in Sigandu Beach - Batang is abrasion, resulting in damage to the beach. This has an impact on the coastal areas along the coast of Sigandu, among others land that has been covered with sea water exceeds 2 m within 5 months, trees and houses around the beach collapsed due to erosion beach by sea water. The information and supporting data are collected from several literatures, interview, laboratory research, and a collection of documents from several institutions, including the Department of Marine and Fishery of Batang, BPDP and BPPT of Yogyakarta in 2013, BMKG Climatology Station in Semarang, Soil Mechanics Laboratory of Diponegoro University and several other institutions. The dominant wind direction effect used in the calculations come from the Northwest and North. Wave height representative used a H33% at 2,94 m and a representative period T33% 8,82 seconds. Sea level caused of tide by the calculation of admiralty generating value HWL =+0.49 m; MSL = ± 0.00 m; LWL = -0.49 m. The tide of Sigandu Beach included in mixed tide prevailing semidiurnal. In the calculation, the wave breaking occurs at a depth of 4.22 m at a distance of ± 787.09 meters from the shoreline. Based on studies of the selection safety structure from some aspects of the Sigandu Beach, the elected lower threshold breakwater structure (Pegar) Geotube. Because a bad soil conditions in Sigandu Beach, then there needs to be retaining structures on Geotube is by giving it a pile of bamboo and bamboo mattresses that had been assembled under the structure of Geotube. Geotube structure is composed of Giant Sand Bag with dimension length 20 m, width 2 m and 1,5 m high with a weight of 6 tons/m' and Sand Bag with dimension length 2,2 m, width 1,4 m, and height 0,4 m with a weight of 1,12 tons/m'. To be expected to form the salient, the structure compiled in series with spacing distance of 10 m with a 100 m length of the building and placed 75 m from the shoreline.
ANALISIS LALU LINTAS AKIBAT PEMBANGUNAN JALAN LAYANG CAKUNG CILINCING TANJUNG PRIOK JAKARTA Intan Fitriani; Ratna Manik Pratiwi; Wahyudi Kushardjoko; YI. Wicaksono
Jurnal Karya Teknik Sipil Volume 2, Nomor 4, Tahun 2013
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Cakung-Cilincing Highway is the main access road to the Tanjung Priok port. The flyover is being built on the road. This causes severe congestion. This study aimed to compare the capacity, the current movement, vehicle speed, and vehicle operating costs at the time before the construction of flyover and during construction of elevated road. Analysis using Manual Kapasitas Jalan Indonesia and Synchro SimTraffic 7.0 program to simulate passing vehicles. The results show the capacity before and during construction is the same, namely 5152,8 pcu/hour because the contractor was to minimize the possibility of harm to road users. Current movement to port more dominant either before or during construction indicated by the greater density toward Priok compared to the Cakung and speed toward Priok lower compared to the Cakung. Traffic density prior to the construction of the port of Tanjung Priok 166 vehicles/km and the direction Cakung of 98 vehicles/km. While the current construction of 229 Priok towards vehicle/km and 143 vehicles/km toward Cakung. The average speed of the vehicle prior to the construction Priok is 41,22 km/h and the direction Cakung 42,26 km/h. While the construction time of 4,86 km/h in the direction Priok and the direction Cakung 8.41 km/h. This is because the construction of the overpass project activities Cakung Cilincing and potholes. Total vehicle operating costs incurred prior to construction lower than at the construction details before construction towards Priok is Rp 679,485,269.47 / day / 1.8 km and to the Cakung Rp 492,487,489.56 / day / 1.8 miles. While the current construction towards Priok Rp 1,014,197,666.44/day/1,8 km and to the Cakung Rp 529,568,278.05/day/1,8 km. This is caused by the increased density of the way so the speed decrease and result in greater costs. Therefore, should the perforated Cakung Cilincing immediately improved and widening of roads so as to improve the speed of vehicles passing through the road.
PERENCANAAN SISTEM JARINGAN TAMBAK GARAM DI PEMONGKONG KABUPATEN LOMBOK TIMUR Rano Adiyoso; Ricky Darmawan; Abdul Kadir; Hari Nugroho
Jurnal Karya Teknik Sipil Volume 3, Nomor 1, Tahun 2014
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Jerowaru Pemongkong village district of East Lombok, West Nusa Tenggara is one of the salt producing areas. Water systems that do not meet the technical standards causing the low production of salt. In efforts to increase production and quality, a need to increase salt production system by using a standard technical planning. In this plan, the planning standards used are salt production system in Korea is the ratio of the reservoir : evaporation area : crystallization area = 55 : 30 : 15, a water supply system with pumping and other buildings such as intake planning, channel and floodgates that refer to the Technical Irrigation Planning Standards. At the beginning of the planning is done making salt ponds plot layout, plan continued with dimensions and elevation intake structure, reservoir, evaporation area, crystallization area and the channel of a water carrier, so that the water supply can be guaranteed. From the study sites were sampled an area of 10.79 ha, gained 5.39 ha of reservoir, 3.24 ha of evaporation area and 1.62 ha of crystallization area. According to the criteria of the salt pond water depth according to the Ministry of Marine Affairs and Fisheries of the Republic of Indonesia, the water level in the reservoir is 50 cm, the water level in evaporation area is 30 cm, and the water level in crystallization area is 5 cm. The discharge of primary channel is 0,526 m3/sec, obtained from the analysis of the primary channel dimensions B = 1.50 m,  H = 0.75 m, while the discharge of secondary channel is 0.213 m3/sec, obtained from the analysis of channel dimensions secondary B = 1.00 m, H = 0.50 m. Discharge plan on the culvert at 0.669 m3/sec, obtained from the analysis of the culvert dimensions 1.50 m x 1.50 m. To maintain water supply continuity water pumps were used with capacity of 98.57 liters/sec. By using this system is expected to increase the productivity of salt + 90 tons/ha/year to + 150 tons/ha/year. The cost of manufacture new salt ponds in this area ranges from + Rp . 165,000,000.00 / ha.
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.
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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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.
ANALISIS LONGSORAN RUAS JALAN CENING KECAMATAN SINGOROJO KABUPATEN KENDAL JAWA TENGAH Daniel Aprinando Hutahaean; Tri Sumirat Kartiko; Sri Prabandiyani; Bambang Pardoyo
Jurnal Karya Teknik Sipil Volume 3, Nomor 2, Tahun 2014
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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This Final Project contained about land stability and it countermeasures on roads Cening Sub-district of Singorojo District of Kendal Central Java. This road crosses the hills with unstable soil conditon. Based on the soil drilling test result, it’s contain of  clay, clay stone ( splinter ), and clay stone ( clay shale ) layers. This Final Project analyzes value of the slope safety factor that included a condition when occured of the movement of soil slopes which is caused by instability on slopes due to degdradation of soil layers, manual calculation of slope stability using Fellenius method and Plaxis V.8.2 computer program. Based on the to manual calculation of slope stability using Fellenius method,it’s obtained value of the slope safety factor equal to 1,074 and use Plaxis software obtained value of the slope safety factor equal to 1,081. Those values of the slope safety factor are still less than slope stability regulation equal to 1,5, with the result that the slope condition is prone to landslide. The Analysis result indicate that reinforcement slope with bored pile with diameter of 0,55 m in depth of five meters which is placed at the bottom of the slope, it’s the alternative handling had increased the value of the safety factor with the factor of safety of the existing condition which is from 1,081 become 1,812.
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.
PERENCANAAN STRUKTUR GEDUNG “SUNTER PARK VIEW APARTMENT” SUNTER -JAKARTA UTARA Widi Krismahardi; Pupuk Wahyuono
Jurnal Karya Teknik Sipil Volume 2, Nomor 1, Tahun 2013
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

The system structure is a combination of various structural elements are arranged in such a way as to form a whole structure that can bear loads planned, (Steffie Tumilar). Dual structural system is a combination of frame and shearwall, the system is very important to apply to high-rise buildings such as sunter Park View Apartment , North Jakarta, Indonesia given the location of the region are located in earthquake prone areas because three regional meetings tectonic indo-australian plate, the eurasian plate and the pacific plate clashing.
ANALISIS PENGARUH KINERJA JEMBATAN TIMBANG TERHADAP KINERJA PERKERASAN DAN UMUR RENCANA JALAN (Studi Kasus Jembatan Timbang Salam, Magelang) Arief Fath Atiya; Okty Diana Wulan Sari; Djoko Purwanto; Bagus Hario Setiadji
Jurnal Karya Teknik Sipil Volume 3, Nomor 3, Tahun 2014
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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On Keprekan Road – Yogyakarta’s Limit is always crossed by heavy vehicles and sometimes overloaded. On that road found “Jembatan Timbang Salam”. Because of  still many phenomena the overloaded vehicles so that “Jembatan Timbang Salam” needs to be revisited its performance in dealing with violations of overloaded that will be effected the pavement performance. From the results of evaluation and analysis carried out, "Jembatan Timbang Salam" in category C which means its performance is in bad condition and it affects the performance of the existing pavement. Using the assumption of the initial design serviceability index (P0) 3.9, the design terminal service ability index (Pt) 2.5, Structural Number 5, and 10 years plan (2005-2015), overloaded that occurs in the field due to condition A (actual load), age of road performance only lasted for 9.48 years for the first analysis (using a growth rate for all classes of vehicles) and only lasted for 9.53 years for second analysis (using the growth rate for each type of vehicle class). Moreover there is also a decreasing road service ability index with an average decline for the first analysis due to standard JBI  load are 1.40% and due to condition A are 1.48%. And than, for the second analysis due to standard load average decline reached 3.07% and for condition A average decline reached 3.33%.But with the overlay in 2011, 2012 and 2013, the service ability index of the road are being increase. For the first analysis the increase reached 26.02% and 35.30% increasing for second analysis.
ANALISA ESKALASI BIAYA PADA PROYEK INFRASTRUKTUR TAHUN JAMAK (Studi Kasus : Proyek Pembangunan Waduk Jatigede dan Proyek Pembangunan Waduk Jatibarang) Alif Fatoni; Muhammad Hanif; M. Agung Wibowo; Jati Utomo Dwi Hatmoko
Jurnal Karya Teknik Sipil Volume 2, Nomor 2, Tahun 2013
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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One of risk of multi years project contract is price adjustment. So, the government issued rules regarding price adjustments through Presidential Decree No. 70/2012 Article 92 that completes the previous rules. Rules about the price adjustment are described in more detail in the contract documents. This situation has led to the price adjustment calculations between different projects. The purpose of this study is to analyze the value of an escalation in the ongoing work items in Jatigede DamProject and Jatibarang Dam Project. Hopefully, through this research, regulation application number 70/2012 on contract documents related to price adjustment.The research was conducted by interview, field observation and simulation calculations based of Jatigede Dam Project and Jatibarang Dam Project contract documents  in data processing. Jatibarang Dam Project assign the value of contract component based on HPS (Owner Cost Estimate) from survey and set the index of economic indicators published by BPS. Jatigede Dam Projectassigns a value based on the cost factor analysis and establishes the unit price indices through the Wholesale Price Index and Consumer Price Index in Cirebon City. This research simulates the price adjustment by exchanging contract documents on both projects with the volume of work in March 2011 and April 2011. Simulation methods on Jatibarang Project generate escalations value 15.69% and 15.44% from the value of escalation methods Jatigede Dam Project. Simulation methods Jatigede Dam Project escalation generate value 175.03% and 161.35% of the value of escalation with methods Jatibarang Dam Project.

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