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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 453 Documents

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Proposed Site-Specific Response Spectra for Surabaya-Madura Bridge Masyhur Irsyam; Donny T. Dangkua; Hendriyawan Hendriyawan; R. Bambang Boediono; Dyah Kusumastuti; Engkon K. Kertapati
Civil Engineering Dimension Vol. 10 No. 2 (2008): SEPTEMBER 2008
Publisher : Institute of Research and Community Outreach - Petra Christian University

This paper presents a site-specific seismic hazard study to determine the recommended seismic design criteria for Suramadu Bridge. The study is performed using probabilistic seismic hazard approach to determine maximum acceleration and response spectra at bedrock and followed by local site effect analysis to determine maximum acceleration and response spectra at ground surface. The probabilistic seismic hazard analysis (PSHA) is carried out using 3-dimension (3-D) seismic source models (fault source model). Two hazard levels are analysed to represent 150 and 3,300 years return period of ground motion around site location. The local site effect analysis is performed using 1-dimension (1-D) shear wave propagation theory to obtain peak ground acceleration and response spectra at ground surface. Finally, the site-specific surface response spectra with 5 percent damping are developed based on the mean plus one standard deviation concept from the result of local site effect analysis.

POTENSI PEMAKAIAN KERIKIL PATERONGAN TORJUN DAN OMBEN DI PULAU MADURA UNTUK BETON STRUKTUR Julistiono Handojo; Handoko Sugiharto
Civil Engineering Dimension Vol. 3 No. 2 (2001): SEPTEMBER 2001
Publisher : Institute of Research and Community Outreach - Petra Christian University

The use of structural concrete in Madura increases with the development of the island, however coarse and fine aggregates which are used, mostly come from Jawa. This research explores the possibility of using the coarse aggregates from Madura taken from Paterongan, Torjun, and Omben. Although it is shown that in general the coarse aggregates are physically the same with aggregates from Mojokerto or Pasuruan and pass SNI, ACI, ASTM, and BS, only aggregate from Torjun pass the flakiness requirements. The fineness modulus of the aggregates do not pass SNI but pass the BS requirement. Using the aggregates in 225kg/cm2 concrete strength mix design fail to reach the target strength. Aggregates from Paterongan and Omben are only recommended for lean concrete, but there is a possibility to use aggregates from Torjun for structural concrete, with betterment in grading. Abstract in Bahasa Indonesia : Pemakaian beton di pulau Madura meningkat seiring dengan perkembangan pulau Madura tetapi agregat kasar dan halus yang digunakan untuk pembuatan beton masih banyak didatangkan dari pulau Jawa. Untuk melihat kemungkinan penggunaan krikil Madura sebagai agregat kasar beton, telah dilakukan penelitian kekuatan terhadap kerikil Madura yang berasal dari Paterongan, Torjun, dan Omben. Meskipun secara umum dapat dikatakan sifat-sifat fisik kerikil tersebut mendekati sama dengan kerikil dari Mojokerto atau Pasuruan dan memenuhi syarat SNI, ACI, ASTM maupun BS, hanya krikil dari Torjun yang memenuhi syarat kepipihan. Modulus kehalusan kerikil tersebut juga tidak memenuhi syarat SNI walaupun masih memenuhi syarat BS. Penggunaan kerikil Paterongan, Torjun, dan Omben untuk mix disain 225 kg/cm2 ternyata di bawah target yang diharapkan, sehingga kerikil Paterongan dan Omben direkomendasi hanya untuk beton rabat, sedangkan kerikil dari Torjun kemungkinan masih bisa digunakan untuk beton struktur dengan perbaikan gradasi.

Application of Spatial and Network Analysis to Evaluate Shelter Plan for Tsunami Evacuation Sigit Sutikno; Keisuke Murakami
Civil Engineering Dimension Vol. 17 No. 2 (2015): SEPTEMBER 2015
Publisher : Institute of Research and Community Outreach - Petra Christian University

This study proposes a method for evaluating shelter plan for emergency evacuation prior to a tsunami based on service area analysis. The evacuation service areas are generated using both spatial and network analysis based on Geographic Information System (GIS). A case study in Pacitan city, East Java Province, Indonesia which is located in the South coastal area of Java Island, is picked as study area. The field has a possibility of suffering tsunami disaster because of the movement of Indo-Australian plate and Eurasian plate. The simulation result shows that the current evacuation shelters arranged by local government are not easy to access if tsunami occurs. About 50% of the residents do not have enough time to evacuate to the shelters because many shelters are located far from residential area. Utilizing public buildings around residential area for temporary shelters proposed in this study, about 96% residents in inundation area have sufficient time to evacuate to the shelters.

A Computer Modeling of Fracture Based Pull-Out of Nylon 600 Embedded in Cementitious Matrix Rr. M.I. Retno Susilorini
Civil Engineering Dimension Vol. 11 No. 2 (2009): SEPTEMBER 2009
Publisher : Institute of Research and Community Outreach - Petra Christian University

This paper reports the development of a computer model that represents a pull-out process of nylon 600 embedded in cementitious matrix. The model is based on fracture approach considering the Poisson’s effect and stable crack length. To back up the model four pull out tests of nylon 600 fiber, diameter 1.1 mm, with two fiber embedment lengths, 100 mm and 120 mm are done. The numerical approach is then compared to the experimental results. The computer model is built on Delphi 7 and named “Program Cabut-Serat Fraktur". This study shows that the computer model could represent the fracture phenomenon during the pull-out process.

PEMODELAN BANGKITAN PERGERAKAN PADA TATA GUNA LAHAN SEKOLAH DASAR SWASTA DI SURABAYA Harry Patmadjaja; Rudy Setiawan
Civil Engineering Dimension Vol. 4 No. 2 (2002): SEPTEMBER 2002
Publisher : Institute of Research and Community Outreach - Petra Christian University

Elementary School is a common location for traffic congestion especially every morning. This condition can be avoided if the elementary school planner can predict the trip generation of that school. The aim of this research is to make a mathematical model of trip generation for elementary school land use at Surabaya. Research has been done to eight private elementary school using Pearson Correlation Analysis, Simple Regression Analysis, and Stepwise Regression Analysis to obtain the most significant trip generation model. Arrival rate and service rate distribution was analyzed using Chi-Square Distribution Fitting method to obtain arrival rate and service rate characteristic. From the analysis, the most significant trip attraction model is Y = -867,9 + 194.Log X1 + 274.Log X8 + 177.Log X5, in which Y is number of student vehicle, X1 is number of elementary student, X8 is total area of classroom, and X5 is classroom capacity. The most significant trip production model is Y= -797,2 + 311.Log X1 + 164.Log X8 +79.Log X15, in which Y is number of student vehicle, X1 is number of elementary student, X8 is total area of classroom, and X15 is ratio between number of teacher and classroom. Several elementary school characteristics that influence traffic congestion are: number of student, number of queue lane, number of entrance, and vehicle occupancy. Abstract in Bahasa Indonesia : Sekolah dasar merupakan salah satu lokasi yang sering mengalami masalah kemacetan lalulintas. Hal tersebut bisa dicegah bila pemilihan lokasi sekolah dilakukan dengan mempertimbangkan perkiraan bangkitan pergerakan yang akan terjadi. Tujuan dari penelitian ini adalah untuk membuat model bangkitan pergerakan (trip generation) kendaraan roda empat (pribadi dan antar jemput) akibat pembangunan sekolah dasar swasta di Surabaya. Survey dilakukan pada delapan sekolah dasar swasta di Surabaya. Hasil survey dianalisis dengan metode Pearson Correlation, Simple Linear Regression, dan Stepwise Regression untuk mendapatkan model persamaan matematis yang paling signifikan. Distribusi laju kedatangan dan laju pelayanan dianalisa dengan metode chi square distribution fitting untuk mengetahui karakteristik laju kedatangan dan laju pelayanan kendaraan pengantar siswa. Hasil analisa menunjukkan model terbaik untuk meramalkan pergerakan yang tertarik menuju ke sekolah dasar swasta (trip attraction) adalah Y = -867,9 + 194.Log X1 + 274.Log X8 + 177.Log X5, dimana Y adalah jumlah kendaraan pengantar, X1 adalah jumlah siswa sekolah dasar, X8 adalah luas total kelas, dan X5 adalah kapasitas kelas. Sedangkan model terbaik untuk meramalkan pergerakan yang berasal dari sekolah dasar swasta (trip production) adalah Y= -797,2 + 311.Log X1 + 164.Log X8 +79.Log X15, dimana Y adalah jumlah kendaraan penjemput, X1 adalah jumlah siswa sekolah dasar, X8 adalah luas total kelas, dan X15 adalah jumlah guru dibagi jumlah kelas. Beberapa karakteristik sekolah dasar yang mempengaruhi kelancaran lalulintas adalah: jumlah siswa, jumlah lajur antrian, jumlah pintu masuk, dan okupansi kendaraan.

Predicting the Response of Shear-critical Reinforced Concrete Beams using Response-2000 and SNI 2847:2013 Benny Suryanto; R. Morgan; A.L. Han
Civil Engineering Dimension Vol. 18 No. 1 (2016): MARCH 2016
Publisher : Institute of Research and Community Outreach - Petra Christian University

This study investigates the accuracy of Response-2000 in predicting the response of shear-critical reinforced concrete beams. The experimental data selected was that obtained by Vecchio and Shim in 2004 on twelve reinforced concrete beams which sought to replicate beams originally tested by Bresler and Scordelis in the early 1960s. This study also aims to compare the results obtained to the predictions of SNI 2847:2013. It is demonstrated that Response-2000 is capable of providing accurate predictions of load-deflection responses up to the peak load, but underestimates the ductility of beams that exhibit a mixed flexure-shear failure mode. It is also shown that both methods provide conservative predictions of the shear strength of beams with no shear reinforcement, with the software providing more consistent and reliable predictions of shear strength of beams containing shear reinforcement.

PENGARUH KEGIATAN PERPARKIRAN DI BADAN JALAN TERHADAP KINERJA RUAS JALAN STUDI KASUS JALAN KERTAJAYA Harry Patmadjaja; Julius Urbanus; Paul Tjahjaputra; Rudy Setiawan
Civil Engineering Dimension Vol. 5 No. 2 (2003): SEPTEMBER 2003
Publisher : Institute of Research and Community Outreach - Petra Christian University

On-street parking could reduce road capacity, and the extra cost due to traffic congestion is incomparable with the income that is gained from the parking sector. Surveys are conducted in the afternoon and evening peak hours when traffic and number of parked vehicle are at maximum. Based on the survey data the existing road capacity is obtained by analyzing the road segment performance, while the extra cost that should be bore by users of Kertajaya caused by on-street parking is obtained using vehicle operation cost and time value analysis. A parking price simulation gives an optimum combination of a fix and progressive price. For afternoon peak hours a fix price of Rp.3000 for the first hour, and progressive price of Rp.1000 for the next hour, while for evening peak hours a fix price of Rp.2500 for the first hour, and progressive price of Rp.500 for every two hours, are needed to balance the loss due to vehicle operation cost and time value. Abstract in Bahasa Indonesia Kegiatan perparkiran di badan jalan dapat mengurangi kapasitas jalan, kerugian yang dialami oleh pengguna jalan akibat kemacetan tidak sebanding dengan pendapatan yang diterima dari sektor parkir. Survey dilakukan pada saat siang dan sore hari dimana pada saat tersebut arus lalulintas dan jumlah kendaraan yang sedang parkir mencapai puncak. Berdasarkan hasil survey dilakukan analisis kinerja ruas untuk mengetahui kapasitas jalan Kertajaya pada saat ini. Selanjutnya melalui analisis Biaya Operasional Kendaraan (BOK) dan Nilai Waktu (NW), dapat dihitung besarnya kerugian yang dialami oleh pengguna jalan Kertajaya akibat kegiatan perparkiran di badan jalan. Simulasi tarif parkir menghasilkan kombinasi tarif tetap dan tarif progresif yang paling optimum yaitu tarif tetap Rp.3000 per satu jam pertama, tarif progresif Rp.1000 per satu jam berikutnya untuk jam puncak siang, dan tarif tetap Rp.2500 per satu jam pertama, tarif progresif Rp.500 per dua jam berikutnya untuk jam puncak sore agar dapat mengimbangi besarnya kerugian berupa BOK dan NW.

Early-age Performance of Cement Combination Concrete Samuel Olufemi Folagbade
Civil Engineering Dimension Vol. 19 No. 1 (2017): MARCH 2017
Publisher : Institute of Research and Community Outreach - Petra Christian University

Heat of hydration up to 72 hours and compressive strength up to 7 days of Portland cement and 17 binary and ternary cements containing fly ash, silica fume, and metakaolin, at a water/cement ratio of 0.50 and addition contents of 20%, 35%, and 55%, were used to examine the early-age performance of concrete. Results revealed that early-age performance depends on the fineness, heat of hydration, and dilution effect of cement combinations. Fly ash, due to dilution effect, reduces the heat of hydration and compressive strength. Using silica fume and metakaolin with increasing content of up to 10% as binary and ternary cement components, due to their fineness and increased heat of hydration, supports the strength development. Most of the cement combinations met the standard of strength requirements for ordinary early-age performance of concrete, while only half of it satisfied the standard for high early-age performance.

Integrating Emotional Intelligence, Political Skill, and Transformational Leadership in Construction Sunindijo, R.Y.
Civil Engineering Dimension Vol. 14 No. 3 (2012): Special Edition
Publisher : Institute of Research and Community Outreach - Petra Christian University

Much research has been conducted to demonstrate the roles of emotional intelligence, political skill, and transformational leadership in the organisational context. However, there is a lack of research that investigates the relationships between the three, particularly in the construction project environment, thus this research attempts to fill this gap. It was hypothesised that emotional intelligence serves as the foundation of these relationships, whilst political skill is the mediator and transformational leadership is the output. Questionnaire survey was used to collect data from three large construction organisations in Australia where 273 valid responses were received. Data were analysed using structural equation modelling method to test the theoretical model. The finding of this research advances theoretical understanding by showing the relationships between emotional intelligence, political skill, and transformational leadership. Practically, it helps construction organisations strategise in recruiting and developing their project personnel.

Spinning Induced Compression Strength of Precast Hollow Concrete Piles Gogot Setyo Budi; Suseno P.K.; Winata S.K.
Civil Engineering Dimension Vol. 19 No. 2 (2017): SEPTEMBER 2017
Publisher : Institute of Research and Community Outreach - Petra Christian University

Prefabricated precast-hollow concrete pile is widely used as deep foundations due to its several benefits such as the uniformity in concrete quality and its durability. It is also called spun pile since the spinning method is utilized to compact the fresh concrete. During spinning, the fresh concrete is propelled outward due to centrifugal force, which generates a compaction process and develops a hollow in the center of the pile. Several factors, such as the rate of spinning, frequency, and duration of spinning, are affecting the quality of the pile. This paper presents the study of density and compressive strength of spun piles. The specimens were cored from the spun piles with diameter of 800 mm. The results show that the density and the compressive strength of the concrete at outer region of the spun pile are bigger than those at the inner side.

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