Asian Journal of Civil Engineering

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ISSN 1563-0854

Publications in this journal


  • No preview · Article · Jan 2016 · Asian Journal of Civil Engineering

  • No preview · Article · Jan 2016 · Asian Journal of Civil Engineering

  • No preview · Article · Dec 2015 · Asian Journal of Civil Engineering
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    ABSTRACT: Utilization of industrial waste products in concrete is gaining importance all around the world due to the rise of environmental consciousness. Rubber from worn out tyres is one such waste material thought of by the researchers. Recycled rubber aggregates produce more elastic concrete, which has higher resistance to specific loads (impact loads, vibration and cyclic loads) compared to conventional concrete. Therefore, in this paper, the effect of crumb rubber on properties of Ordinary Portland Cement (OPC) Concrete and Ternary Blended Cement (TBC) Concrete of M40 grade are investigated with fly ash and silica fume as powders along with cement. TBC concrete has shown high energy absorption and higher strengths compared to OPC concrete.
    No preview · Article · Aug 2015 · Asian Journal of Civil Engineering
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    ABSTRACT: The seismic response of 20-story benchmark building with semi-active variable friction dampers (SAVFD) is investigated under various earthquake ground motions. A recently proposed predictive control algorithm is employed. A parametric study is carried out to arrive at optimum value of gain multiplier so as to have maximum response reduction. The numerical study is carried out for the benchmark building installed with SAVFD and compared with passive and uncontrolled case. The effectiveness of dampers is studied in terms of the reduction in structural responses and performance criteria. To reduce the cost of dampers study is carried out with lesser number of dampers at appropriate locations. Results show that SAVFD reduces earthquake responses effectively with better performance in respect of acceleration response reduction as compared with passive dampers. In addition, it is observed that the lesser number of dampers at appropriate locations results similar response reduction which reduces cost of the dampers.
    No preview · Article · Jan 2015 · Asian Journal of Civil Engineering
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    ABSTRACT: The aim of this paper is determining the probability of seismic vulnerability of two building, 8 and 5 storied, reinforced concrete residential building as examples of existing buildings in high risk area, in Tabriz. These structures have been modeled in 3D frame in SAP2000 software [17] and excitation with selected twenty ground motion records. Each record have 15 synthetic records. As a result, a total of 300 records were entered into SAP2000. We evaluate the ISDR at each storey and retain the maximum value to give an overall idea of the building damage level. By comparing structures response together and with damage states, it can be concluded that the structures reach to initially predicted performance. The study presented in this article summarizes the vulnerability analysis for the case studies of Tabriz in East Azerbaijan (the north-west of Iran). These buildings are of regular shape with 8 and 5 numbers of stories. The analysis consider seven damage states, from none to complete collapse, complying with Rossetto and Elnashai [15] classification.
    No preview · Article · Jan 2015 · Asian Journal of Civil Engineering
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    ABSTRACT: Nowadays, old existing buildings with less load carrying capacity are usually strengthened by the application of a suitable strengthening method. Such methods include the use of steel bracing, FRP jacketing or wrap, concrete jacketing, steel plating, shear wall and hybrid methods. However, there are the possibilities of selecting a strengthening method without comparing for the most efficient method, due to time constraint or little knowledge about strengthening methods. These will however, lead to ignoring the differences among the strengthening methods. In the present study, information about strengthening methods is highlighted as obtained from the survey. According to this information, decision selection program is set up, where different strengthening methods are encoded with their characteristics of solving problems. A case study is applied herewith to check the efficiency of the decision selection program. The recommended strengthening methods are ascertained to be relatively more economical, efficient and time saving.
    No preview · Article · Jan 2015 · Asian Journal of Civil Engineering