Garuda - Garba Rujukan Digital

Article Per Year (5 Year)

All

Civil Engineering Dimension

civ
Website

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 8 Documents

Search results for , issue "Vol. 22 No. 2 (2020): SEPTEMBER 2020" : 8 Documents clear

Introducing a Novel Digital Elevation Model Using Artificial Neural Network Algorithm Saeed Behzadi; Amin Jalilzadeh
Civil Engineering Dimension Vol. 22 No. 2 (2020): SEPTEMBER 2020
Publisher : Institute of Research and Community Outreach - Petra Christian University

Elevation is a basic information of the earth, and different elevation models are provided to better understanding the earth and its different functions. However, it is not always possible to conduct a comprehensive survey in big areas and calculate all surface points. The best way is survey some points, then the elevation estimation is done using these points in each part of study area. The purpose of this paper is to use interpolation methods to estimate elevation. In such cases, different methods are used to interpolate and estimate points with an uncertain height. In this paper, the three usual methods are chosen and introduced then their performance are compared. These methods including: Inverse Distance Weighting (IDW), the Krige method or Kriging, and Artificial Neural Network (ANN). The results show that Artificial Intelligence with RMS = 5.9m is better in compare to Kriging with RMS = 7.2 and IDW with RMS = 9. The obtained result presents that in despite of its convenience, ANN provides DEMs with minimum errors.

Improving Seismic Performance of Structure with Semi-rigid floor using VSL-Gensui Damper Pamuda Pudjisuryadi; Andre Halim; Alexander Keith Kandiawan; Benjamin Lumantarna
Civil Engineering Dimension Vol. 22 No. 2 (2020): SEPTEMBER 2020
Publisher : Institute of Research and Community Outreach - Petra Christian University

Deficient structures can be strengthened using various methods, and installing damper devices is one of such methods. In this study, effectiveness of Vorspann System Losinger (VSL) Gensui Damper to improve structural performance of deficient building with semi-rigid floors is investigated. The considered building is subjected to spectrum consistent ground accelerations generated from El Centro 18 May 1940 earthquake N-S and E-W components in accordance to Indonesian Seismic Code (SNI 1726:2012) for Mataram City. Modified Simplified Sequential Search Algorithm (MSSSA) and Optimum Damper Allocation Method (ODAM) methods are used to efficiently placed the dampers on the building until allowable drift limits specified by the code are met. Results show that installation of VSL Gensui Dampers can effectively reduce structural drifts. Further, it should be noted that the placement of dampers must be well distributed among frames in the same story, since their drifts may differ significantly in building with semi-rigid floors.

Utilization of low sulfur fly ash from circulating fluidized bed combustion burner as geopolymer binder Antoni Antoni; Stacia Dwi Shenjaya; Maria Lupita; Samuel Santosa; David Wiyono; Djwantoro Hardjito
Civil Engineering Dimension Vol. 22 No. 2 (2020): SEPTEMBER 2020
Publisher : Institute of Research and Community Outreach - Petra Christian University

Circulating fluidized bed combustion (CFBC) is a newer type of burner that employ a circulating process to burn fuel effectively. CFBC burning process is gaining more popularity due to its compact size, high efficiency and lower burning temperature compared to the pulverized coal combustion (PCC) burner. The CFBC burner produces fly ash with different physical properties compared to the PCC burner, i.e. the fly ash is not rounded, and required higher water content for comparable workability. The CFBC fly ash also has a high sulfur content that is detrimental for hardened concrete. Due to its drawbacks, the CFBC hardly used as cementitious material and geopolymer precursor. This study focuses on comparing variations in the concentration of NaOH solution and variations in the ratio of alkaline activators to the setting time and compressive strength of geopolymer mortars on a new class of CFBC fly ash, which have low sulfur content. The concentrations of NaOH solution were 6M, 8M, 10M, and 12M, while the alkaline activator ratios used were 3.0, 2.5, 2.0, 1.0, and 0.5. It was concluded that the low sulfur CFBC fly ash has a potential to be utilized as geopolymer precursor, however, with a shortcoming in its high water demand. The CFBC fly ash used in this study resulted in a geopolymer matrix with good compressive strength and stability. The water demand varies with the fly ash sampling time shows the challenges in the utilization of the fly ash. The highest mortar’s compressive strength, 33.4 MPa at 90 days was achieved at NaOH concentration of 8M and ratio of sodium silicate solution to sodium hydroxide solution of 2.5 with excellent stability.

An Innovation Value Chain in Project Based Companies: A Study of Indonesian Contractors Harijanto Setiawan; Ferianto Raharjo; Ay Lie Han
Civil Engineering Dimension Vol. 22 No. 2 (2020): SEPTEMBER 2020
Publisher : Institute of Research and Community Outreach - Petra Christian University

Innovation is one of the key success factors of contractors to achieve sustainable business. However, studies about innovation cannot be generalized to all business sectors. Therefore, special study about innovation that focuses on contractors in Indonesia is needed. The study is aimed to explore the process of innovation development in contractors, based on innovation value chain (IVC) approach. The qualitative analysis on the data that is collected from in depth interview with top managers of big contractors in Indonesia is carried out. This study found that innovations are generated mainly by project teams because they are involved directly in the project activities. The next phase is to test the idea of innovation in the selected projects in order to assess whether the innovation works well or not. Finally, the selected innovations will be set as a company standard and will be implemented in the subsequent projects.

Importance Performance Analysis of Factors Causing Reworks in the Construction Industry Andi Andi; Jani Rahardjo; Fendy Fendy
Civil Engineering Dimension Vol. 22 No. 2 (2020): SEPTEMBER 2020
Publisher : Institute of Research and Community Outreach - Petra Christian University

Rework can bring negative effect to construction project. This research aims to identify the importance level of factors causing reworks in structural, finishing, and mechanical, electrical and plumbing (MEP) works by a way of importance performance analysis (IPA). In order to reach this objective, the research evaluates the degree of occurrence the factors in each type of works and analyzes the level of difficulty in preventing the occurrence of the factors. The results are based on questionnaire survey, involving general and MEP contractors in Surabaya. Design related factors are the most frequent and most difficult to prevent in structural and finishing works. In MEP works, the most frequent factors are tight construction duration and unclear instructions from owner and designer; whilst insufficient owner’s capital is the most difficult to prevent. The research finds two factors that have high importance level, i.e. design changes and insufficient detail drawings.

A Virtual Platform to Determine the Tensile Properties of Engineered Cementitious Composite Benny Suryanto; Joshua Kiyoshi Suryanto
Civil Engineering Dimension Vol. 22 No. 2 (2020): SEPTEMBER 2020
Publisher : Institute of Research and Community Outreach - Petra Christian University

The four-point flexural test is now making headway as an alternative laboratory investigative technique for determining the tensile properties of Engineered Cementitious Composite (ECC) to the more traditional, direct/uniaxial tensile test. As the fundamental mechanics of ECC specimens tested in four-point flexure are well understood, it is possible to develop a simple relationship between flexural test results and the tensile properties of this cement composite. This paper extends this development and aims to provide accessible and quick calculation of the tensile properties of ECC via a virtual test environment. To this end, attention is directed towards the test configurations developed earlier at Heriot-Watt University, the University of Michigan, and Sepuluh Nopember Institute of Technology. In this paper, the technical background employed in creating the virtual environment and the computer implementation using the JavaScript programming language are presented. The prototype virtual environment is freely available via the Internet at https://ecc-calculator.netlify.app/.

Suction Monitoring and Stability of Volcanic-Residual Soil Slope during Rainfall Agus Setyo Muntohar; Nurul Fata; Apiniti Jotisankasa; Kuo-Hsin Yang
Civil Engineering Dimension Vol. 22 No. 2 (2020): SEPTEMBER 2020
Publisher : Institute of Research and Community Outreach - Petra Christian University

Some slopes in Yogyakarta, Indonesia, were covered by volcanic soil of the quaternary deposit of Merapi volcano. Typically, the soil layers of the slope consist of fine sand or silty sand. During the wet season (November – February), the slope is prone to instability due to rainfall infiltration. This paper presents the field suction monitoring of silty-sand slope. A 2.57 m high slope at Universitas Muhammadiyah Yogyakarta campus was instrumented with a mini tensiometer, moisture probe, and rain gauge to study the effect of suction on the slope stability during rainfall in wet season. The investigation shows that the rainfall decreases the suction and increase the moisture of soil. This situation leads to slope instability. The factor of safety fluctuates corresponding to the rainfall intensity. The lowest factor of safety was attained on 30 December, in which the rainfall intensity is the highest, i.e. 48 mm/day.

Evaluation of a Macro Lump Plasticity Model for Reinforced Concrete Beam-Column Joint under Cyclic Loading Joko Purnomo; V. Octaviani; P. K. Chiaulina; Jimmy Chandra
Civil Engineering Dimension Vol. 22 No. 2 (2020): SEPTEMBER 2020
Publisher : Institute of Research and Community Outreach - Petra Christian University

Lateral deformations of reinforced concrete (RC) frames under extreme seismic excitation are highly affected by the stiffness of their beam-column joints. Numerous models have been proposed to simulate the responses of RC beam-column joint under cyclic loading. Development of RC beam-column joint model based on macro modeling using spring elements becomes more popular because of its considerably simple application for seismic performance evaluation purposes. In this study, a simple modification to previously developed macro-spring element-based model for RC beam-column joint is done and is used to simulate the behavior of seven external and five internal RC joints under cyclic loading in SAP2000. The model consists of several spring elements to define column, beam, joint, and bond-slip responses according to its individual moment-rotation relationships. Overall, the analysis results show that the modified model can simulate well the cyclic behavior of RC beam-column joints when are compared to previously available experimental results

Page 1 of 1 | Total Record : 8

Filter by Year

2020 2020

Filter By Issues

All Issue Vol. 28 No. 1 (2026): MARCH 2026 Vol. 27 No. 2 (2025): SEPTEMBER 2025 Vol. 27 No. 1 (2025): MARCH 2025 Vol. 26 No. 2 (2024): SEPTEMBER 2024 Vol. 26 No. 1 (2024): MARCH 2024 Vol. 25 No. 2 (2023): SEPTEMBER 2023 Vol. 25 No. 1 (2023): MARCH 2023 Vol. 24 No. 2 (2022): SEPTEMBER 2022 Vol. 24 No. 1 (2022): MARCH 2022 Vol. 23 No. 2 (2021): SEPTEMBER 2021 Vol. 23 No. 1 (2021): MARCH 2021 Vol. 22 No. 2 (2020): SEPTEMBER 2020 Vol. 22 No. 1 (2020): MARCH 2020 Vol. 21 No. 2 (2019): SEPTEMBER 2019 Vol. 21 No. 1 (2019): MARCH 2019 Vol. 20 No. 2 (2018): SEPTEMBER 2018 Vol. 20 No. 1 (2018): MARCH 2018 Vol. 19 No. 2 (2017): SEPTEMBER 2017 Vol. 19 No. 1 (2017): MARCH 2017 Vol. 18 No. 2 (2016): SEPTEMBER 2016 Vol. 18 No. 1 (2016): MARCH 2016 Vol. 17 No. 2 (2015): SEPTEMBER 2015 Vol. 17 No. 1 (2015): MARCH 2015 Vol. 17 No. 3 (2015): SPECIAL EDITION Vol. 16 No. 2 (2014): SEPTEMBER 2014 Vol. 16 No. 1 (2014): MARCH 2014 Vol. 15 No. 2 (2013): SEPTEMBER 2013 Vol. 15 No. 1 (2013): MARCH 2013 Vol. 14 No. 2 (2012): SEPTEMBER 2012 Vol. 14 No. 1 (2012): MARCH 2012 Vol. 14 No. 3 (2012): Special Edition Vol. 13 No. 2 (2011): SEPTEMBER 2011 Vol. 13 No. 1 (2011): MARCH 2011 Vol. 12 No. 2 (2010): SEPTEMBER 2010 Vol. 12 No. 1 (2010): MARCH 2010 Vol. 11 No. 2 (2009): SEPTEMBER 2009 Vol. 11 No. 1 (2009): MARCH 2009 Vol. 10 No. 2 (2008): SEPTEMBER 2008 Vol. 10 No. 1 (2008): MARCH 2008 Vol. 9 No. 2 (2007): SEPTEMBER 2007 Vol. 9 No. 1 (2007): MARCH 2007 Vol. 8 No. 2 (2006): SEPTEMBER 2006 Vol. 8 No. 1 (2006): MARCH 2006 Vol. 7 No. 2 (2005): SEPTEMBER 2005 Vol. 7 No. 1 (2005): MARCH 2005 Vol. 6 No. 2 (2004): SEPTEMBER 2004 Vol. 6 No. 1 (2004): MARCH 2004 Vol. 5 No. 2 (2003): SEPTEMBER 2003 Vol. 5 No. 1 (2003): MARCH 2003 Vol. 4 No. 2 (2002): SEPTEMBER 2002 Vol. 4 No. 1 (2002): MARCH 2002 Vol. 3 No. 2 (2001): SEPTEMBER 2001 Vol. 3 No. 1 (2001): MARCH 2001 Vol. 2 No. 2 (2000): SEPTEMBER 2000 Vol. 2 No. 1 (2000): MARCH 2000 Vol. 1 No. 2 (1999): SEPTEMBER 1999 Vol. 1 No. 1 (1999): MARCH 1999 More Issue

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name
-

Contact Email
-

Phone
-

Journal Mail Official
-

Editorial Address
-

Location
Kota surabaya,

Jawa timur

INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name -

Contact Email -

Phone -

Journal Mail Official -

Editorial Address -

Location Kota surabaya, Jawa timur INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
-

Contact Email
-

Phone
-

Journal Mail Official
-

Editorial Address
-

Location
Kota surabaya,

Jawa timur

INDONESIA