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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 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 1,848 Documents
Experimental and Numerical Research on Steel Plate Shear Wall with Infill Plate Connected to Beam Only Amirhosein Raisszadeh; Ardeshir Deylami; Alireza Rahai
Civil Engineering Journal Vol 4, No 3 (2018): March
Publisher : Salehan Institute of Higher Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1268.462 KB) | DOI: 10.28991/cej-0309113

Abstract

Steel plate shear walls consist of thin infill steel plates attached to beams, called (horizontal boundary elements, HBEs), and columns (vertical boundary elements, VBEs) in structural steel frames. The thin unstiffened web plates are expected to buckle in shear at low load levels and develop tension field action, providing ductility and energy dissipation through tension yielding of the web plate. HBEs are designed for stiffness and strength requirements and are expected to anchor the tension field formation in the web plates. VBEs are designed for yielding of web plates and plastic hinge formation at the ends of the HBEs. This design approach may result in very large demand on boundary frame members, especially VBEs in most cases. Several methods such as using LYP, perforating the infill plate and omitting connection of infill plate to columns have been proposed to reduce the moment and axial force demands on the VBEs. Study the behavior of steel plate shear walls omitting the connection of infill plate and columns is the main purpose of this research. A classic analysis base on PFI method along with quasi static cyclic experimental study has been performed in order to investigate the behavior of such a system. The results of the experimental study are used to verify numerical models. Behaviors of proposed system (overall capacity and initial stiffness) were compared with those of the conventional SPSWs. Results show that both parameters are reduced in comparison to the conventional SPSWs.
Effect of Soil Types on The Development of Matric Suction and Volumetric Water Content for Dike Embankment During Overtopping Tests Hassan, Marwan Adil; Mohamad Ismail, Mohd Ashraf
Civil Engineering Journal Vol 4, No 3 (2018): March
Publisher : Salehan Institute of Higher Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2882.515 KB) | DOI: 10.28991/cej-0309124

Abstract

The resistance of dike materials has a great effect on the development of hydraulic engineering around the world. It helps to understand the mechanism of dike failure occurred due to the influence of hydraulics and Geotechnical parameters. The overtopping moment is one of the main failures that reduces the stability of the dike embankment through initiating the breach channel inside dike crest as a result of water flow above the downstream slope of the dike. Two spatial overtopping tests were conducted at in Hydraulic Geotechnical laboratories at the University Sains of Malaysia to observe the evolution of matric suction and volumetric water content for two soil types of sand and very silty sand soils. A pilot channel was cut in dike crest along the side wall of the small flume channel to represent the transition water flow from upstream into downstream slopes during overtopping test. The results indicated that the matric suction decreases due to the increase of volumetric water content during the saturation of dike body. The proportion increasing and decreasing of volumetric water content and matric suction is lower in very silty sand than those in sand soil due to the presence of fine particles in previous soil.
Technical Analysis of Collapse in Tunnel Excavation and Suggestion of Preventing Appropriate Applicable Methods (Case Study: Sardasht Dam Second Diversion Tunnel) Esmailzadeh, Akbar; Jafar Shirzad, Peyman; Shaffiee Haghshenas, Sina
Civil Engineering Journal Vol 3, No 9 (2017): September
Publisher : Salehan Institute of Higher Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (958.908 KB) | DOI: 10.21859/cej-03095

Abstract

In order to either optimal use of water resource of KELAS river basin and electrical energy generation, Sardasht Dam and power plant are designed. Dam water diversion system includes two tunnels with inner diameter of 7 m. Several collapses have occurred in portal of second diversion tunnel (A2) which has created large cavity in tunnel crown. In order to prevent collapse, various ways such as steel sets installation and also grouting to increase strength of surrounded rock mass, are prescribed but none of technics could not to ban caving in. considering this fact that in order to continue tunnelling process, collapse zone should be passed, a solution or solutions must be suggested to overcome consecutive and dangerous collapses problem. In order to decrease tunnelling risks, in this research, using both experience and knowledge obtained from previous proposed executive solution to similar cases and technically analysis of occurred collapse in current diversion tunnel, it has been tried to suggest a new appropriate solution which defeat the problem. Finally, in order to stabilize of tunnel crown, as an effective and applicable solution, constructing retaining crown by means of rock bolts, was introduced.
Laboratory Investigation of Materials Type Effects on the Microsurfacing Mixture Shafaghat Lonbar, Mohammad; Nazirizad, Mahmoud
Civil Engineering Journal Vol 2, No 3 (2016): March
Publisher : Salehan Institute of Higher Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (503.883 KB)

Abstract

Pavement preservation is a quintessential system of treating pavements at the optimum time to maximize their useful life. One of the preventive maintenance treatment options is using microsurfacing system as the acceptable and economical solution. This study presents a laboratory investigation of aggregate type and adhesive materials and their relationship to microsurfacing pavement properties such as cohesion, wet track abrasion loss, excess asphalt and compaction. The method of this study relies on ISSA A143, using the Cohesion 30 min and 60 min, Wet track abrasion loss, Loaded-wheel excess asphalt and finally Loaded-wheel compaction. The verification of this method was achieved through measuring the various factors of specimens constructed in laboratory using two different aggregate sources as river and mountain aggregates and two binders as CSS-1h and CQS-1h. The results showed that mixes contain riverine aggregates showed more cohesion properties. Base on wet track test results mixes, mixes containing riverine type aggregate were more resistant to abrasion. In addition CQS-1h emulsion showed better adhesiveness against abrasion in both types of aggregates in asphalt mixes. With increased amount of emulsions in mixes, load wheel values increased as well. Loaded wheel compaction test results confirmed that river based aggregates are more susceptible to rutting failure. The results of wheel tracking test illustrated that CSS-1h emulsion applied in mixes had better resistance to rutting.
Reviewing the Role of Spatial Factors in Promoting Social Interactions with the Purpose of Designing a Cinematic-Cultural Complex Karimi Azeri, Amir Reza; Haghighi Sosari, Zahra Delkhosh; Mozhdehi, Amirnezhad
Civil Engineering Journal Vol 4, No 4 (2018): April
Publisher : Salehan Institute of Higher Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (563.049 KB) | DOI: 10.28991/cej-0309139

Abstract

The first goal of architecture is to build a proper space for human activities. Having sufficient knowledge about human beings and their relationships with others can be effective in creating an environment that is appropriate for certain types of activities. On the other hand , as social creatures, humans have various qualitative and quantitative levels of social interactions; while many of the existing buildings have created a deeper gap in human relations by solely responding to the functional needs and failing to give focused attention to human factors. In fact, the subject of the current research indicates that, due to the shortage of cultural facilities and healthy urban hangouts, as well as the unacceptable quality of the existing cultural spaces especially the cinemas, the recommended design can be a multifunctional complex and have spaces with official and unofficial sociable spaces. Also, it can make creation and promotion of social interactions possible. The current research is a descriptive-analytical research in terms of nature and it is a survey, in terms of method. In addition, it is an applied research in terms of its objective, a quantitative research based on the research data and a field study based on its procedure. In this respect, some human and environmental variables that affect social interactions have been extracted from documents and library studies. Among them,  five of the most important factors were selected as the basis of this research based on the prioritization done by specialized environmental psychologists among faculty members of some of the most well-known and valid universities in Iran. The statistical community of this research is the city of Anzali harbor and places related to active cinemas of the city. Therefore, by specifying the community, sample and tools of the research, the roles played by the selected variables in association with the confirmation and rejection of the research hypotheses were tested. After analyzing the data using SPSS software, the selected variables were prioritized as follows: capabilities of the environment, attraction, visual beauty and aesthetic dimensions, natural landscape, view and adjacency, accessibility, continuity and legibility. Then, the most effective solutions for fulfilling the research objectives were developed.
Analysis of Most Important Indices in Environmental Impacts Assessment of Ports Saeedi Pash, Hosein; Ebadi, Taghi; Pourahmadi, Amirali; Rahmani Parhizkar, Yashar
Civil Engineering Journal Vol 3, No 10 (2017): October
Publisher : Salehan Institute of Higher Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (987.628 KB) | DOI: 10.28991/cej-030921

Abstract

Ports are the main centers of economic activities and producers of environmental pollutions on the shores and urban areas. Regarding the growth of world trade, transportation of goods through the ports has been undergoing prompt development, possibly experiencing further progress in the upcoming years. In the recent years, the destructive impacts of ports on the environment has been increasing. The type of activities and interactions carried out in the ports have speeded up such destructions. The major sources of pollutions are usually air, noise, water, soil and garbage. The objective of this study is to identify the main and sub-indices in the assessment of environmental impacts of ports (EIAP). To this end, a number of 28 case studies over the world have been analyzed. The indices of the environmental impacts of ports are categorized and evaluated according to four scales: the application and study aspects, the time, the location, as well as the quantity of occurrence of the criteria. Totally 200 main and sub-indices have been identified, within which, the first 10 have been allocated to the pollution of air, noise, water, transportation, traffic, greenhouse gases, garbage, soil, climate change and dredging, since 2000 to 2016. Finally, to better understand the subject, the conceptual framework for EIAP is presented. This study provides with port managers guidance toward identifying significant environmental aspects of ports; it is, at the same time, applicable in order for awareness and prioritization in the environmental management.
Application of Hyperstatic Reaction Method for Designing of Tunnel Permanent Lining, Part II: 3D Numerical Modelling Hassani, Rahim; Basirat, Rouhollah
Civil Engineering Journal Vol 2, No 6 (2016): June
Publisher : Salehan Institute of Higher Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1821.348 KB)

Abstract

Underground structures often have abrupt changes in structural stiffness or ground conditions such as junctions of tunnels, tunnel portal in slopes, and niches in road tunnels. At these locations, stiffness differences may subject the structure to differential movements and generate stress concentrations. Because of adversity in these issues, they need a three dimensional analysis. This paper proposes a numerical approach to the hyperstatic reaction method (HRM) for three dimensional analysis of permanent tunnel linings. In this paper, three dimensional numerical modelling is performed by considering hyperstatic reaction concepts. Designing is done for Manjil-Rudabar freeway project, Tunnel No. 2. The numerical analyses performed for Operational Design Earthquake (ODE) and Maximum Design Earthquake (MDE) loading conditions. Then interaction diagram between axial force and bending moment used for investigating the capacity of tunnel lining. The numerical results show that although more axial forces are created in tunnel lining for ODE condition, but the points in the P-M diagrams are located in the furthest distance to the diagram border (tunnel supporting system); because of less bending moment in this condition. Therefore, the safety factor in ODE condition is more than MDE condition. This numerical processing presented that the HRM is a proper, fast, and practical method for tunnel designers.
Numerical Analysis of TBM Tunnel Lining Behavior using Shotcrete Constitutive Model Shaalan, Heyam H.; Azit, Romziah; Mohamad Ismail, Mohd Ashraf
Civil Engineering Journal Vol 4, No 5 (2018): May
Publisher : Salehan Institute of Higher Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2322.141 KB) | DOI: 10.28991/cej-0309155

Abstract

Shotcrete is a fundamental support element for tunnels and underground constructions. Shortly after application, shotcrete linings undergo a high load while the ordinary concrete is not fully hardened yet. Therefore, the time-dependent behaviour of the shotcrete material must consider. Traditional approaches assume a linear elastic behaviour using a hypothetical young modulus to model this time-dependency and creep effects. In this paper, a new constitutive model of shotcrete is applied to evaluate the time-dependent behaviour of TBM tunnel lining under high in-situ stress state. The Shotcrete model is based on the framework of Elasto-plasticity and designed to account for non-linear and time-dependent behaviour for concrete material more realistically. A parametric study of the time-dependent behaviour of the shotcrete lining, using the shotcrete model, is performed. To achieve this, the influence of the lining thickness, tunnel diameter and tunnel depth on the development of the stresses and displacement of the shotcrete lining with time is investigated. The results showed that the development of the lining tensile stress with time at tunnel crown increases by increasing the lining thickness and tunnel depth, whereas it decreases by increasing of the tunnel diameter. At the tunnel sidewall, the lining compression stress with time increases with the increase of the tunnel depth and diameter, while higher lining thickness decreases the lining compressive stresses. However, the results showed the ability of the shotcrete model to simulate the structural behaviour of the shotcrete lining with time.
Exploring Critical Success Factors in Urban Housing Projects Using Fuzzy Analytic Network Process Youneszadeh, Hessam; Ardeshir, Abdollah; Sebt, Mohammad Hassan
Civil Engineering Journal Vol 3, No 11 (2017): November
Publisher : Salehan Institute of Higher Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1241.721 KB) | DOI: 10.28991/cej-030937

Abstract

Population growth and increasing trend towards urbanization have caused housing demand to exceed its supply, particularly in urban areas in developing countries. Furthermore, housing industry motivates many subsidiary industries and plays a leading socio-economic role in such countries. Therefore, successful completion of housing projects is of great significance quantitatively and qualitatively.This study aims to propose a framework to evaluate the critical success factors (CSFs) in housing projects considering the interrelationship among factors and criteria. The factors were initially identified through literature review and then refined and categorized using a two-round Delphi method and finally prioritized using fuzzy analytic network process (FANP). To demonstrate the implementation of the proposed model, a case study was carried out on an urban residential building project in Tehran. The framework proposed in this study can be applied as a decision support system for decision makers, project managers and practitioners involved in the housing sector.
Finite Element Modeling of Axially Loaded CFRP-Confined Rectangular Reinforced Concrete Columns Akbarpour, Hamed; Akbarpour, Masoumeh
Civil Engineering Journal Vol 2, No 8 (2016): August
Publisher : Salehan Institute of Higher Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1484.093 KB)

Abstract

This paper investigates numerically the behaviour of rectangular RC columns strengthened with carbon fiber reinforced polymer (CFRP) composites under uniaxial loading. For this a reason, a parametric study is conducted and the effects of CFRP layers number, compressive strength of unconfined concrete, and fiber orientation on the behaviour of such columns have been studied. The number of CFRP layers has been changed from one to five layers while the fibers are oriented transversely. Compressive strength of unconfined concrete has been increased from 26 MPa to 45 MPa. In addition, three different fiber orientations are considered. The results show that an increase in the number of CFRP layers would enhance the ultimate strength of specimens. Although increasing the number of layers would not increase the ultimate strength of specimens exponentially, but the rate of strength gain would also decrease. Moreover, it is shown that lateral strains increase as the layer number increases. The effect of unconfined concrete strength on the ultimate strength is less for low strength concrete than high strength concrete. Evaluating the effect of fiber orientation shows that the maximum ultimate strength is obtained from transverse orientation and as the angle of orientation increases, the ultimate strength decreases.

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