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INDONESIA
Civil Engineering Journal
Published by C.E.J Publishing Group
ISSN : 24763055     EISSN : 24763055     DOI : -
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
Civil Engineering Journal is a multidisciplinary, an open-access, internationally double-blind peer -reviewed journal concerned with all aspects of civil engineering, which include but are not necessarily restricted to: Building Materials and Structures, Coastal and Harbor Engineering, Constructions Technology, Constructions Management, Road and Bridge Engineering, Renovation of Buildings, Earthquake Engineering, Environmental Engineering, Geotechnical Engineering, Highway Engineering, Hydraulic and Hydraulic Structures, Structural Engineering, Surveying and Geo-Spatial Engineering, Transportation Engineering, Tunnel Engineering, Urban Engineering and Economy, Water Resources Engineering, Urban Drainage.
Arjuna Subject : -
Articles 23 Documents
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Search results for , issue "Vol 4, No 11 (2018): November" : 23 Documents clear
New Rethinking on Managers’ Competency Criteria and Success Factors in Airport Construction Projects Alireza Roshani; Mohsen Gerami; Omid Rezaeifar
Civil Engineering Journal Vol 4, No 11 (2018): November
Publisher : Salehan Institute of Higher Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (595.236 KB) | DOI: 10.28991/cej-03091192

Abstract

The present research was conducted with the aim of rethinking the criteria competency of airport construction project managers. The research methodology was applied in terms of purpose, and a combination of descriptive survey methods and content analysis in terms of implementation. The statistical population consisted of 550 experienced managers of construction industry in public and private sectors, including contractors, consulting engineers and their employers in Iran in the late decade to 2017. The sample size was 230 according to Morgan sampling table. The subjects were collected by stratified purposeful sampling method. The data gathering tools were the managers' desirability questionnaire with a reliability coefficient of 0.916, a project success rate with a reliability coefficient of 0.863 and an interview with the managers with an agreement coefficient of 0.899. The data were analyzed by SPSS and TOPSIS software using descriptive statistics of frequency, percentage, mean, standard deviation, and inferential statistics of exploitation, Factor analysis, Kolmogorov-Smirnov Test, and one-way ANOVA. The results of the research indicated that the airport construction is of great importance due to the necessity of developing the infrastructure and the territorial location. The criteria of competencies for managers in the airport construction industry are different from the past and attention to local and environmental criteria is among the recognized management criteria. The priority of localized thirteen competencies of the project managers was leadership, project financing, project cost management, problem solving, project governance, time management, strategic management, quality management, controlling and integrated management, managing legislation and regulations, networking and professional ethics. Moreover, the local factors of the project success in priority order were timely allocation of funds, appropriate financial support, integration, upstream project management, appropriate financing of financial needs, management integration, strategic stability, stakeholder commitment and accountability, review cost mismatch, completion of the project in due time, increase of knowledge level in the organization.
Experimental and Numerical Study to Determine the Relationship between Tensile Strength and Compressive Strength of Concrete Badarloo, Baitollah; Kari, Amir; Jafari, Faezeh
Civil Engineering Journal Vol 4, No 11 (2018): November
Publisher : Salehan Institute of Higher Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1174.53 KB) | DOI: 10.28991/cej-03091198

Abstract

As one of the most widely used materials in different structures, concrete is a material evaluated and categorized based on compressive strength criterion. In addition, national and international codes (INBC- part 9) and standards determine the tensile strength of concrete based on its compressive strength. The purpose of this research is to determine the relationship between compressive strength and tensile strength of C20, C30 and C40 grades. In this laboratory research, a total of 42 cubic specimens of 150 × 150 × 150 mm and 42 cylindrical specimens of 300 × 150 mm were assessed under compressive and tensile tests, respectively. Based on the results of this study, the relationships presented in Ninth Article of Iranian National Building Codes, ACI-318 and Euro Code 2 have been evaluated.
A Framework to Select the Best Strategy for Iran's Entry into the Repair and Maintenance Market of Oil Drilling Rigs Pantea Motamed; Javad Majrouhi
Civil Engineering Journal Vol 4, No 11 (2018): November
Publisher : Salehan Institute of Higher Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (931.63 KB) | DOI: 10.28991/cej-03091193

Abstract

The oil and gas service industry revenue is projected to rise to $350 billion in 2020, and a major part of such services belong to repair and maintenance (R&M) of the drilling rigs. Therefore, with regard to the number of jack-up rigs in Iran and the Persian Gulf, the R&M and improvement of these types of rigs become particularly important, especially due to the high lifespan of these rigs, which increases the time frequency of basic repairs. Nevertheless, Iran is suffering from lack of management and knowledge in the field of project resource management in this industry. Therefore, knowing the strategies and effective criteria for this industry is essential. In this paper, 15 criteria affecting the selection of R&M strategy were determined through interviews with experts, and the effect of each criterion on each alternative (seven strategies) was studied, and the most appropriate R&M strategy was then selected through analytic hierarchy process (AHP). The results show that the best strategy for Iran's entry into the R&M market is to perform all basic repairs of the rig, followed by license and joint venture. Finally, the best strategy was applied at R&M of Sina1 rig, comparing the results with those for Iranian rigs such as Modarres and Rajaei, the repairs of which were carried out in foreign yards, indicates the low cost of domestic repairs and the economic justification.

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