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Civil Engineering Dimension

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Published by Universitas Kristen Petra Surabaya

ISSN : 14109530 EISSN : 1979570X DOI : -

Core Subject : Engineering,

Civil Engineering, Building, Construction & Architecture

The Civil Engineering Dimension (Dimensi Teknik Sipil) is a refereed journal, published twice a year, in March and September.

Arjuna Subject : -

Articles 466 Documents

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THE PERFORMANCE OF THE PROJECT COALITION IN THE UK CONSTRUCTION INDUSTRY A CONCEPTUAL OPTIMISATION MODEL Robby Soetanto; David G. Proverbs; Patricia Cooper
Civil Engineering Dimension Vol. 2 No. 2 (2000): SEPTEMBER 2000
Publisher : Institute of Research and Community Outreach - Petra Christian University

The UK construction industry has long been criticised for engendering adversarial relationships among project participants. The nature of interrelationships ultimately determines overall project performance%2C in terms of finished product%2C and levels of performance and satisfaction for the participants. To investigate these interrelationships%2C the performance and satisfaction of each individual participant must be considered. Better understanding of the interrelationships should help reduce adversarialsm and improve the performance and satisfaction of each participant. The possible interrelationships that may exist are discussed based on %91soft knowledge%92 approaches%2C i.e. psychology%2C organisational behaviour and sociology. It is concluded that the performance of each participant is interdependent and essential towards project performance. Two levels of satisfaction%2C which determine the quality of working relationships between participants%2C are postulated. The first level of satisfaction %28i.e. satisfaction on achieving organisational objectives%29 is%2C to some extent%2C dependent on the second level of satisfaction %28i.e. satisfaction on the performance of the other participants%29. Therefore%2C within the construction project coalition%2C each participant has to be satisfied with the performance of the other participants if harmonious working relationships are to be sustained. Based on these%2C a conceptual model for optimising the relationships between main participants of the project coalition is presented. Abstract in Bahasa Indonesia : Coalition+participants%2C+Interrelationships%2C+Performance%2C+Satisfaction+

Characteristics of Motorcycle Ownership and Use of University Students in Malaysian and Indonesian Cities Leksmono Suryo Putranto; Joewono Prasetijo; N.P.S.E. Setyarini
Civil Engineering Dimension Vol. 17 No. 1 (2015): MARCH 2015
Publisher : Institute of Research and Community Outreach - Petra Christian University

Motorcycle ownership and use increased rapidly in Indonesian cities in recent years. People could not cope with severe congestion due to unsatisfactory public transport and uncontrolled land use delopment. This led to motorcycle use for almost any trip. However, in Malaysia motorcycles were mainly used for local short distance travel. In this paper the characteristics of motorcycle ownership and use of university students in Malaysian and Indonesian cities were discussed. A total of 398 university students in eight cities were asked to fill the questionnaires. They consist of general questions regarding their socio-economic back-ground and travel habit along with 25 perceptional questions regarding affordability/ attractiveness of owning motorcycle and practicability/safety of motorcycle use. A variance based structural equation modelling called partial least square-path modelling (PLS-PM) was used for analysis. The results show that indicators explaining affordability and acceptability were exactly the same in Penang and combination of seven cities in Indonesia.

APLIKASI STATISTIK EKSTRIM DAN SIMULASI MONTE CARLO DALAM PENENTUAN BEBAN RENCANA PADA STRUKTUR DENGAN UMUR GUNA TERTENTU Wong Foek Tjong
Civil Engineering Dimension Vol. 3 No. 2 (2001): SEPTEMBER 2001
Publisher : Institute of Research and Community Outreach - Petra Christian University

Abstract in Bahasa Indonesia : Tidak banyak yasawan yang mengetahui bagaimana cara mendapatkan beban rencana dari data yang dimiliki. Makalah ini membahas penggunaan statistik ekstrim dan simulasi Monte Carlo untuk menentukan beban rencana untuk suatu umur guna tertentu. Diberikan pula beberapa contoh penggunaan kedua cara tersebut.

PENGARUH VARIASI TEKANAN KEMPA TERHADAP KUAT LENTUR KAYU LAMINASI DARI KAYU MERANTI DAN KERUING Buan Anshari
Civil Engineering Dimension Vol. 8 No. 1 (2006): MARCH 2006
Publisher : Institute of Research and Community Outreach - Petra Christian University

The use of timber as a structural material is not only limited to solid timber but also as laminate called glue-laminated timber (glulam). The design of glulam depends on many factors such as the expertise of the designer, timber grade and its combination, adhesive quality, gluing process and clamping process. This research explores the optimum clamp pressure to obtain maximum bending strength of glulam timber which is a combination of Keruing and Meranti Woods using Polivynyl Asetat (PVA) and Melamin Formaldehyde (MF) adhesives. The combination of timber for shear specimen are Keruing Meranti Keruing (KMK), Keruing Keruing Meranti (KKM), and Keruing Meranti Meranti (KMM), the clamp pressures used are 0,2 MPa, 0,6 MPa, 1,0 MPa, and 1,4 Mpa. The duration of clamping is six hours for all combination. The result shows that the bonding strength of shear specimen reaches a maximum of 75,13 kg/cm2 with a clamp pressure of 0,6 MPa using MF adhesive. The maximum flexural strength achieved is 656,37 kg/cm2 with a clamp perssure of 0,6 MPa using MF adhesive as well. Abstract in BahasaIndonesia : Pemakaian kayu sebagai bahan struktural tidak hanya terbatas sebagai kayu utuh, tetapi juga sebagai balok laminasi atau glulam. Proses perancangan kayu dipengaruhi beberapa faktor seperti, tingkat keahlian perancang, faktor kayu yang digunakan beserta kombinasinya, perekat dan proses perekatannya serta proses pengempaannya. Penelitian ini mencari besar tekanan kempa optimum untuk mendapatkan kekuatan lentur maksimum kayu laminasi dari kayu Keruing dan Meranti yang direkatkan dengan perekat Polivynyl Asetat (PVA) dan Melamin Formaldehyde (MF). Kombinasi yang digunakan pada benda uji lamiasi adalah Keruing Meranti Keruing (KMK), Keruing Keruing Meranti (KKM), dan Keruing Meranti Meranti (KMM), dengan tekanan kempa rencana sebesar 0,2 MPa, 0,6 MPa, 1,0 MPa, dan 1,4 MPa untuk semua kombinasi. Proses pengempaan dilakukan selama enam jam. Hasil pengujian pada benda uji kuat lekat menunjukkan keteguhan rekat maksimum sebesar 75,13 kg/cm2 dicapai dengan tekanan kempa 0,6 MPa dengan perekat MF. Sedangkan pada balok laminasi kuat lentur maksimum mencapai 656,37 kg/cm2 pada tekanan kempa 0,6 MPa dengan kombinasi kayu Keruing Meranti Keruing dan perekat MF.

PERHITUNGAN LEBAR RETAK PADA BETON PRATEKAN PARSIAL DENGAN UNIFIED APPROACH Gideon Hadi Kusuma
Civil Engineering Dimension Vol. 2 No. 1 (2000): MARCH 2000
Publisher : Institute of Research and Community Outreach - Petra Christian University

In partially prestressed concrete, crack width is rarely calculated. The crack width was controlled only by limiting the steel stress. This paper introduced crack width calculations which has been developed in America (ACI). The calculations show that factor influencing crack width is not only the steel stresses, but there are some other variables. "Unified approach" is used to introduce design aids in the form of graphs and tables that can be used for partially prestressed, prestressed and reinforced concrete. Abstract in Bahasa Indonesia : Pada beton pratekan parsial, jarang dilakukan perhitungan lebar retak. Lebar retak dibatasi dengan melakukan pembatasan tegangan baja yang terjadi. Makalah ini memperkenalkan perhitungan lebar retak yang sudah dikembangkan di Amerika (ACI). Hasil perhitungan menunjukkan bahwa lebar retak tidak hanya dipengaruhi tegangan saja, tetapi juga variabel lainnya. Dalam paper ini dengan mengunakan prosedur perhitungan yang sama untuk beton pratekan, pratekan parsial maupun beton bertulang biasa (unified approach), dibuat dan diperkenalkan alat bantu berupa grafik dan tabel. Kata kunci: beton pratekan parsial, lebar retak, unified approach

REDISTRIBUSI MOMEN PADA BALOK KOMPOSIT MENERUS DENGAN MEMPERHATIKAN PENGARUH MOMEN INERSIA NEGATIF Handoko Sugiharto; Hasan Santoso
Civil Engineering Dimension Vol. 3 No. 2 (2001): SEPTEMBER 2001
Publisher : Institute of Research and Community Outreach - Petra Christian University

Elastic analysis of continuos composite beams, assumes constant second moment of area constant over the length of the beam, giving hogging moment at internal supports higher than sagging moment at midspan. This certainly is not favorable because the contribution of concrete slab should be ignored in calculating moment resistance at the internal support. Where elastic analysis is used, alternative economic design is achieved with redistribution of moments from the internal support to the midspan. This paper considering the influence of negative moment inertia to moment redistribution shows that moment redistribution is influenced by the ratio of ultimate positive bending moment to positive bending moment capacity (Mu+/Mkap+). The smaller the ratio (Mu+/Mkap+) the bigger the allowed moment redistribution. Some graphs to calculate the amount of moment redistribution that can be allowed are also presented. Abstract in Bahasa Indonesia : Pada perencanaan balok komposit menerus secara elastis momen enersia sepanjang balok dianggap sama, sehingga momen negatif yang terjadi di daerah tumpuan lebih besar daripada momen positif yang terjadi di lapangan. Hal ini tidak menguntungkan karena kontribusi pelat beton pada daerah momen negatif tidak dapat diperhitungan. Salah satu alternatif untuk memperoleh desain yang lebih menguntungkan dilakukan dengan redistribusi momen dari daerah tumpuan ke daerah lapangan. Makalah ini dengan memperhatikan pengaruh momen inersia negatif terhadap redistribusi momen, menunjukkan bahwa besar redistribusi momen yang dapat dilakukan dipengaruhi oleh rasio momen ultimate positif yang terjadi sebelum redistribusi (Mu+) terhadap kapasitas momen lentur positif penampang (Mkap+). Makin kecil rasio (Mu+/Mkap+) makin besar redistribusi yang dapat dilakukan. Tulisan ini juga menyajikan alat bantu berupa grafik untuk menentukan besarnya redistribusi momen.

Consideration of Road Management from the View Points of Long- and Short-Distance Road User’s Satisfaction Wardhana A.P.; Ishibashi K.; Kiyota M.
Civil Engineering Dimension Vol. 13 No. 2 (2011): SEPTEMBER 2011
Publisher : Institute of Research and Community Outreach - Petra Christian University

This study observed long- and short-distance road user satisfaction with national road infrastructure in order to direct future road management strategies. The research was a quantitative research method using questionnaire translated into the Japanese Language. The questionnaires were distributed to 2000 road users of two national roads in Saga, Japan. A five-point Likert scale was used to measure road user satisfaction, then the data were analyzed using stepwise regression. Based on regression model, long- and short-distance road user satisfactions were both affected by two same elements (road surface and road facilities). The availability of sidewalks mostly affected short-distance road user satisfaction. On the other hand, the smoothness of road surface was more considered by long-distance road user. Considering the findings, existing problems of inappropriate-infrastructure quality can be addressed to help satisfy user’s expectations.

Queuing Rule of Thumb based on M/M/s Queuing Theory with Applications in Construction Management Kardi Teknomo
Civil Engineering Dimension Vol. 14 No. 3 (2012): Special Edition
Publisher : Institute of Research and Community Outreach - Petra Christian University

The current trend of queuing theory development is toward more precision which requires higher mathematical manipulation. In this paper, we attempted to reverve the current trend toward simplification of queuing formulas such that it can be used in more practical purposes, especially in construction industry. Through numerical examples of two case studies on concreting and earth moving, how to model the construction activities as queuing systems is illustrated systematically. Through the numerical examples, it is shown that when the customer cost is much lower than the server cost, queuing system can be simplified only to incorporate the constraint equation. The queueing constraint equation is suggested to be used as queuing rule of thumb. The proposed rule of thumb is rather conservative in term of queuing performance compared to the standard stochastic queuing formula because it is assumed that all the customers arrive at once in the beginning of the service.

Sidoarjo Mud: A Potential Cement Replacement Material Nuruddin M.F.; Bayuaji R.; Masilamani M.B.; Biyanto T.R.
Civil Engineering Dimension Vol. 12 No. 1 (2010): MARCH 2010
Publisher : Institute of Research and Community Outreach - Petra Christian University

This paper presents an experimental and analytical research conducted to study the properties of mortar when treated Sidoarjo mud was added into the mix replacing partially the cement content. The replacements were done at 0, 5, 10, 15, and 20%. Compression, tensile, porosity and Ultrasonic Pulse Velocity (UPV) tests were conducted to evaluate the effect of Sidoarjo mud in mortar. Analyses on the mud were also conducted through X-ray diffraction (XRD), X-ray Fluorescence (XRF), and scanning electron microscope with an energy dispersive X-ray analysis system (SEM-EDX). The results showed that the mud could be used as a cementitious material with optimum ordinary Portland cement (OPC) replacement at 10%.

Effect of Crumb Rubber as Fine Aggregate Replacement in Cold Mixture Asphalt Paravita Sri Wulandari; Ken Kertorahardjo; Arianto Thesman; Daniel Tjandra
Civil Engineering Dimension Vol. 21 No. 2 (2019): SEPTEMBER 2019
Publisher : Institute of Research and Community Outreach - Petra Christian University

The number of waste tires has been increasing as an impact of rapidly growing number of vehicles and becomes a global environmental concern. The environmental impact can be reduced by converting the waste tires to crumb rubber and reusing it as a replacement of fine aggregates in asphalt mixture. Dense graded cold mixtures asphalt design was developed for rubberized mixtures with up to 100% (by weight) crumb rubber replacement. Series of laboratory testing were performed for evaluating the Marshall stability and volumetric properties of rubberized cold mixture asphalt. The findings of this laboratory study indicated that Marshall stability and volumetric properties of these mixtures were affected by crumb rubber percentage. Although the use of crumb rubber in cold mixture asphalt could decrease the mechanical and volumetric properties of mixtures, but still has a great potential as a partial fine aggregate replacement in cold mixture asphalt. Rubberized cold mixture asphalt could be considered as a flexible pavement subjected to low traffic medium load.

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