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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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Permeation Resistance of Sawdust Ash Blended Cement Laterized Concrete Samuel Olufemi Folagbade; Aluko Olawale
Civil Engineering Dimension Vol. 21 No. 2 (2019): SEPTEMBER 2019
Publisher : Institute of Research and Community Outreach - Petra Christian University

This paper compared the initial surface absorption of conventional concrete and laterized concrete containing Portland cement (PC) and sawdust ash (SDA). Laterized concrete was produced at laterite contents of 15 and 30% as partial replacement for sand and SDA contents of 10 and 20% as partial replacement for PC. Compressive strengths at 28 days and initial surface absorption after 10 minutes (ISA-10) at 28, 60 and 90 days were determined at the water/cement ratios of 0.35, 0.50 and 0.65 and assessed at equal 28-day strengths of 25-35 N/mm2. At equal water/cement ratios, compressive strength reduced and ISA-10 increased with increasing content of laterite and SDA. On the other hand, compressive strength and resistance to surface absorption of the blended cement laterized concretes increased with increasing curing age. At equal strengths, all the blended cement laterized concretes have better resistance to surface absorption than the conventional PC concrete.

DATA COLLECTION METHOD FOR PEDESTRIAN MOVEMENT VARIABLES Kardi Teknomo; Yasushi Takeyama; Hajime Inamura
Civil Engineering Dimension Vol. 2 No. 1 (2000): MARCH 2000
Publisher : Institute of Research and Community Outreach - Petra Christian University

The need of tools for design and evaluation of pedestrian areas, subways stations, entrance hall, shopping mall, escape routes, stadium etc lead to the necessity of a pedestrian model. One approach pedestrian model is Microscopic Pedestrian Simulation Model. To be able to develop and calibrate a microscopic pedestrian simulation model, a number of variables need to be considered. As the first step of model development, some data was collected using video and the coordinate of the head path through image processing were also taken. Several numbers of variables can be gathered to describe the behavior of pedestrian from a different point of view. This paper describes how to obtain variables from video taking and simple image processing that can represent the movement of pedestrians and its variables

ON REPRESENTING FACTORS INFLUENCING TIME PERFORMANCE OF SHOP-HOUSE CONSTRUCTIONS IN SURABAYA Andi Andi; Susandi Susandi; Hendra Wijaya
Civil Engineering Dimension Vol. 5 No. 1 (2003): MARCH 2003
Publisher : Institute of Research and Community Outreach - Petra Christian University

Some shop-houses were built late and others are on time, or faster than the schedule that had been planned. The questions are how it could happen and what kind of factors that made it happened. This research has an objective to investigate time performance of shop-house constructions in Surabaya by representing factors that influence it. It first assembles potential influencing factors through literature review, and second, conducts an empirical study by collecting data from finished thirty-two shop-house projects throughout the city. Results of analyses using one-way analysis of variance (ANOVA) indicate eight factors to be statistically significant influencing time performance. They are construction design change, schedule of work that will be done, workers discipline, material availability, owner’s payment, quality control, workers availability, and material delivery. The paper discusses the factors and proposes possible solutions to improve time performance.

Retracted on September 18, 2019 Editor .
Civil Engineering Dimension Vol. 9 No. 2 (2007): SEPTEMBER 2007
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9744/ced.9.2.pp. 90-97

Settlement of Thick Clay Deposits under Piled-Raft Foundation and Design Considerations (Pile Dimensions) Lee Kwang Yeol
Civil Engineering Dimension Vol. 17 No. 3 (2015): SPECIAL EDITION
Publisher : Institute of Research and Community Outreach - Petra Christian University

Characteristics and histories of the deltaic deposits in geotechnical perspective are studied. Geotechnical issues of clay deposits under floating foundation systems also analyzed. Theoretical expressions and parameters were examined by an experimental study and numerical analysis on the laboratory scales and field measurement in this study. Also, piled raft foundation on thick clay deposits is designated to optimize pile configuration. The predictions of settlements of piled rafts foundation are proposed based on pile dimensions by utilizing a normalized Ap/nL and Bg/Br. Practical design of piled raft foundations is made for the light bridges and five story buildings on thick clay deposits to discuss the long-term settlement, and it is found that the piled raft is well applicable and effective on thick clay deposits, and that differential settlements of the foundation should be managed by designing the configuration of pile lengths and spacing.

Intensity-Duration-Frequency (IDF) Curve and the Most Suitable Method to Determine Flood Peak Discharge in Upper Werba Sub-Watershed Cilcia Kusumastuti; Prasetio Sudjarwo; Marvin Christhie; Timotius Krisna
Civil Engineering Dimension Vol. 21 No. 2 (2019): SEPTEMBER 2019
Publisher : Institute of Research and Community Outreach - Petra Christian University

Design flood is one of the important factors for flood risk assessment and water infrastructures planning and development in a certain location. There are several methods to estimate it, one method which has been commonly and widely use is using flood frequency analysis. This research aims to develop Intensity-Duration-Frequency (IDF) curves in Upper Werba Sub-Watershed, West Papua Province, Indonesia, to estimate design rainfall intensity. The design rainfall intensity is used to estimate peak of flood discharge using Rational Formula in the sub-watershed. Other methods, i.e. Soil Conservation Service and Nakayasu Synthetic Unit Hydrograph are also presented in this paper to provide comparison of the estimated peak of flood discharge. The result shows that the Rational method provide the closest magnitude of estimated flood discharge in Upper Werba Sub-Watershed to the observed streamflow. Therefore, it is suggested that the Rational method can be used for water infrastructure planning and development in the sub-watershed.

A Novel Implementation of Nature-inspired Optimization for Civil Engineering: A Comparative Study of Symbiotic Organisms Search Doddy Prayogo; Min-Yuan Cheng; Handy Prayogo
Civil Engineering Dimension Vol. 19 No. 1 (2017): MARCH 2017
Publisher : Institute of Research and Community Outreach - Petra Christian University

The increasing numbers of design variables and constraints have made many civil engineering problems significantly more complex and difficult for engineers to resolve in a timely manner. Various optimization models have been developed to address this problem. The present paper introduces Symbiotic Organisms Search (SOS), a new nature-inspired algorithm for solving civil engineering problems. SOS simulates mutualism, commensalism, and parasitism, which are the symbiotic interaction mechanisms that organisms often adopt for survival in the ecosystem. The proposed algorithm is compared with other algorithms recently developed with regard to their respective effectiveness in solving benchmark problems and three civil engineering problems. Simulation results demonstrate that the proposed SOS algorithm is significantly more effective and efficient than the other algorithms tested. The proposed model is a promising tool for assisting civil engineers to make decisions to minimize the expenditure of material and financial resources.

Seismic Assessment of Structures in Regions of Low to Moderate Seismicity Lumantarna, E.; Lam, N.; Wilson, J.
Civil Engineering Dimension Vol. 14 No. 3 (2012): Special Edition
Publisher : Institute of Research and Community Outreach - Petra Christian University

Assessment of structures according to conventional seismic design procedure has been based on trading off strength and ductility (or displacement) to provide sufficient energy dissipation capacity to structures. Consequently, structures in regions of high seismicity are designed to undergo large displacements whilst maintaining their lateral strengths in an earthquake. Energy demand from a small to medium earthquake could subside with increasing effective natural periods. Significantly, the amount of drift imposed on the structures could be restrained to an upper limit irrespective of the degradation in strength or stiffness of the lateral load resisting elements. Based on the displacement-controlled behaviour, structures can be deemed seismically safe despite having undergone significant degradation in strength and stiffness, provided that the structures can sustain the maximum drift demand from an earthquake without collapsing. This paper proposes a simple procedure for the assessment of structures in regions of low to moderate seismicity. The proposed procedure will result in significant savings in time and costs particularly when a large number of structures are to be assessed for their potential vulnerability in an earthquake.

Bolt Spacing and End Distance of Bolted Connection of Laminated Veneer Lumber (LVL) Sengon Ali Awaludin; Dani Nugroho Saputro
Civil Engineering Dimension Vol. 19 No. 1 (2017): MARCH 2017
Publisher : Institute of Research and Community Outreach - Petra Christian University

This paper focuses on bolt connections on Laminated Veneer Lumber (LVL) Sengon. Series of connection tests were conducted to evaluate 3.5d, 5d, and 7d end distances and 3d, 4d, and 5d bolt spacings, where d is a 10 mm bolt diameter. All connections were double-shear model (steel-LVL-steel). The results showed that all variations of end distance failed in ductile manner especially the connections with end distances of 5d and 7d. Load carrying capacity of the connections with end distances of 5d and 7d were about the same. For single bolt connections, those with 5d bolt spacing had the highest ratio of load carrying capacity. Only the two-bolt connections with 5d bolt spacing gave the ratio of load carrying capacity higher than that of prediction. These findings therefore suggests that minimum end distance of 5d and minimum bolt spacing of 5d are recommended to be addopted in LVL Sengon bolted connections.

Chloride Penetration into Fiber Reinforced Concrete under Static and Cyclic Compressive Loading Antoni Antoni
Civil Engineering Dimension Vol. 10 No. 2 (2008): SEPTEMBER 2008
Publisher : Institute of Research and Community Outreach - Petra Christian University

The effect of loading on the chloride penetration into plain concrete (PC) and fiber reinforced concrete (FRC) was studied experimentally by using modified NT Build 492 – Non-steady state chloride migration test that include the application of loading on the specimen during the test. Three types of polypropylene fibers with different lengths and shapes were used. The concretes were tested for chloride penetration at different stress ratios under static and cyclic loading. The results of the static loading showed that there was a slight reduction in the chloride penetration under low level of compressive stress while an increase in the chloride penetration was found at higher stress level. There are significance difference in chloride penetration behavior of the plain concrete, long fiber FRC and short fiber FRC. Chloride penetration increased even more at cyclic loading conditions showing difference behavior of FRC and PC at difference number of cycle and load level.

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