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MEDIA KOMUNIKASI TEKNIK SIPIL

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Published by Universitas Diponegoro

ISSN : 08541809 EISSN : 25496778 DOI : -

Core Subject : Engineering,

Civil Engineering, Building, Construction & Architecture

Media Komunikasi Teknik Sipil (ISSN 0854-1809) published twice in a year, in July and December. The article can be product of researches, scientific thoughts or case study, in civil engineering and isnâ€™t formed by politics, commercialism, and subjectivity unsure. This scientific journal contains articles of thought and research results in Civil Engineering that have never been published in scientific journals or other media.

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Articles 7 Documents

Search results for , issue "Volume 22, Nomor 1, JULI 2016" : 7 Documents clear

Analisis Perbandingan Kontrak Tradisional dan Kontrak Berbasis Kinerja (KBK) Berdasarkan Risiko Persepsi Kontraktor dengan Metode Analytical Hierarchy Process (AHP) Fauziyah, Shifa; Wibowo, M. Agung; Suliantoro, Hery
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 22, Nomor 1, JULI 2016
Publisher : Department of Civil Engineering, Diponegoro University

Two types of contracts that are used in the road project is a traditional contract (Unit Price) and performance based contract (Lump Sum). Both types of contracts have their own risks. Therefore, it is necessary to measure which type of contracts is more risky between traditional contract and performance-based contract from the perspective of the contractor using Analytical Hierarchy Process. Analytical Hierarchy Process (AHP) is a method used to find a weight where the intensity of the risks using traditional contract and performance-based contract can be measured and analyzed. This research took sample for project with a traditional contract is Kendal â€“ Semarang Road Project. While the samples for the project with a performance based contract is Semarang â€“ Bawen Road Project. The results of the calculation by the alternative assessment, are the higher rank is performance based contract which is 0.56 (56%), while traditional contract is the second with the total score 0.44 (44%). The mean is performance based contract more risky than traditional contract from the perspective of the contractor.

Kajian Kinerja Sistem Polder sebagai Model Pengembangan Drainase Kota Semarang Bagian Bawah dengan Balanced Scorecard Hari Nugroho; Dwi Kurniani; Mega Asiska; Nuraini Nuraini
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 22, Nomor 1, JULI 2016
Publisher : Department of Civil Engineering, Diponegoro University

One of the technological flood control and rob in the big cities is the polder system that include drainage systems , retention ponds, levees that surround the area, as well as the pump and / floodgates, as the area of integrated water management system. Likewise, as the coastal city of Semarang in Indonesia has built some of the polder which has been in operation or under construction. To assess the success of the polder management, necessary for a study to determine the performance of the system in controlling the flood in Semarang. Assessment of performance of the system as a whole polder in this study used the concept of the Balanced Scorecard (BSC). The results of this study demonstrate the performance of the polder in Semarang is an ideal: Polder Tanah Mas (73.81 / 100), then Polder Banger (67.21 / 100), Polder Kali Semarang (58.70/100) and the Polder Tawang (58.65/100). The performance of the Polder system above can not be separated from the existence of an independent governing body and had been prepared much earlier. So the presence of the governing body needs to be prepared in the polder system development. To improve performance, the polder-existing polder in Semarang needs to be improved its performance by improving the performance indicators is still less based on this research primarily on indicators: financial, management agencies and learning and development.

Modeling Rheotaxis based on Preference to Predict Fish Migration Behavior in A River Febrina, Rina
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 22, Nomor 1, JULI 2016
Publisher : Department of Civil Engineering, Diponegoro University

In this research, we attempt to determine preference of rheotaxis and estimated weight values in laboratory experiments using adult and juvenile ayu (Plecoglossus altivelis altivelis). We conducted paired comparisons of ayu distribution between the upper and lower sections of a test watercourse using several velocity conditions (10, 30, and 40 cm/s for juveniles; 20, 30, 50, 70, and 90 cm/s for adults). In upper watercourse sections, juvenile ayu preferred velocities of 30 cm/s and 40 cm/s, and adults preferred a velocity of 50 cm/s. Even when a highly preferred illumination condition of 4000 lux was present in the lower section, fish maintained a higher distribution in the upper section. We design a procedure to calculate rheotaxis preference and built it into our fish behavior simulation model on geographic information system (GIS) software. The model successfully predicted natural migration behavior of fish.

Perbandingan Nilai Kuat Tekan Beton Menggunakan Hammer Test dan Compression Testing Machine terhadap Beton Pasca Bakar Dharmawan, Weka Indra; Oktarina, Devi; Safitri, Mariana
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 22, Nomor 1, JULI 2016
Publisher : Department of Civil Engineering, Diponegoro University

The change of temperature is quite high, as was the case in the event of a fire, it will have an impact on the concrete structure. Because in the process there will be a cycle of alternately heating and cooling, which would lead to a change in phase of the complex physical and chemical basis. Using hammer test as a comparison of compression testing machine (CTM) in normal conditions the concrete now widely used and has had standardization. The objects to test consist of 60 concrete cubes beam of 15 cm x 15 cm x 15 cm which burned for 3 hours with 3 variants of temperatures. The 20 samples used as a blank test and each 20 samples burnt with temperature 300oC and 600oC. The results showed the increase in the compressive strength at the temperature of 300oC in the amount of 6.68% or 10.91 Kg/cm2, and at the temperature of 600oC has decreased by 1.57% or 2.56 Kg/cm2 on hammer test. While the testing with compression strength of concrete decreased at temperatures of 300oC and 600oC respectively is 15.77% or 51.1 Kg/cm2 and 21.89% or 70.93 Kg/cm2.

Analisis Perbandingan Pengaruh Penggunaan Flyslab dan Plat Floordeck dalam Mewujudkan Lean Construction Sandagie, Edwin; Wibowo, M. Agung; Purwanggono, Bambang
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 22, Nomor 1, JULI 2016
Publisher : Department of Civil Engineering, Diponegoro University

Nowadays there are several kinds of products innovations in the construction industry, one of whom is a precast concrete slab. In fact, products of innovation are not necessarily fully able to provide a positive impact, both in terms of cost, quality, time, and waste on building construction projects. Moreover, what is offered by the manufacturer of precast concrete slab has not necessarily correspond with the needs of the customer. The purpose of this study is to analyze the comparison of products in terms of time, cost, quality, and waste between projects using precast concrete slab and the same projects that were simulated using floordeck concrete slab. This research will: (1) simulate the project if not using precast concrete slab product, (2) analyze the comparison of products in terms of time, cost, quality, and waste between the real project and the simulation project, (3) calculate the benefits obtained from the use of precast concrete slab product. The use of flyslab at Pertamina Parking Building Project (which consists of three floors and two floors using flyslab) when compared with the results of the simulation project that uses floordeck concrete slab: (1) in terms of time, it can provide a savings of 12.5% of the total duration of the simulation project, (2) in terms of costs, it can provide costs savings on the total cost structure reaches 23.13%, (3) in terms of quality, flyslab constituent materials are designed to have a higher quality when compared to floordeck concrete slab constituent materials, (4) in terms of waste, on a project that uses flyslab, the amount of waste generated is much less when compared to the results of the simulation project that uses a floordeck concrete slab.

Pengaruh Penerapan Sistem Manajemen Mutu terhadap Kualitas Pelaksanaan Kegiatan Operasi dan Pemeliharaan (Studi Kasus: Tugas Pembantuan Operasi dan Pemeliharaan Daerah Irigasi Kedung Asem dan Daerah Irigasi Bodri Provinsi Jawa Tengah) Amin, Mualim; Wibowo, M. Agung; Atmojo, Pranoto Samto
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 22, Nomor 1, JULI 2016
Publisher : Department of Civil Engineering, Diponegoro University

A decrease in irrigation network performance system operation and maintenance are the impact of the operation management system and irrigation maintenance which does not suitable with the technical demands of the irrigation network design. The purpose of this study is to determine the effect of the application of quality management system in ministry of public works to the quality of the operations and maintenance on the Tasks Operation and Maintenance. The object of the research was in Kedung Asem and Bodri Irrigation Area, it was seen from three variables, namely: (1) the management of resources, (2) the implementation of the activities, (3) measurement, analysis and improvement. Data were obtained from observation andquestionnaire, and then were processed by using descriptive method and linear regression method. The results says that the quality management system in resource management is perceived as good enough category; the implementation activities, measurement, analysis and improvement were perceived good by the respondents. Identification of the quality of the operations and maintenance were also perceived good; further, performance index ratings of irrigation systems are performing well. The results of multiple linear regression equation is Y =12.883+1,181X1+0,449X2 +1,210X3, the conclusions hypothesis testing shows that the implication of quality management system give positive and significant effect on improving the quality of operations and maintenance work on the Tasks Operation and Maintenance of (DI) Kedung Asem and (DI) Bodri Irrigation Area.

Penyelesaian Numerik Advection Equation 1 Dimensi dengan EFG-DGM Sadono, Kresno Wikan
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 22, Nomor 1, JULI 2016
Publisher : Department of Civil Engineering, Diponegoro University

Differential equation can be used to model various phenomena in science and engineering. Numerical method is the most common method used in solving DE. Numerical methods that popular today are finite difference method (FDM), finite element method (FEM) dan discontinuous Galerkin method (DGM), which the method includes mesh based. Lately, the developing methods, that are not based on a mesh, which the nodes directly spread in domain, called meshfree or meshless. Element free Galerkin method (EFG), Petrov-Galerkin meshless (MLPG), reproducing kernel particle method (RKPM) and radial basis function (RBF) fall into the category meshless or meshfree. Time integration generally use an explicit Runge Kutta 4th order, Newmark- , HHT- , Wilson- Â dll. This research was carried out numerical simulations DE, by combining the EFG method to solve the domain space and time integration with DGM methods. EFG using the complete order polynomial 1, and DGM used polynomial order 1. The equation used advection equation in one dimension. EFG-DGM comparison with analytical results also performed. The simulation results show the method EFG-DGM match the one-dimensional advection equations well.

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