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Lectotype optimization of mid-highrise residential building based on site conditions and seismic fortification intensity

引用

Journal of Harbin Institute of Technology(New Series) 2006年第6期13卷 718-722页

作者：秦力程志辉宋玉普 School of Architecturrl and Civil Engineering Northeast China Institute(University) of Electric Power Engineering School of Civil and Hydraulic Engineering Dalian University of Technology

A multi-objective lectotype optimization model based on site conditions and seismic fortification intensity is presented for mid-highrise residential buildings taking into account multiple items such as the original investment, disaster losses and maintenance cost, the integral stiffness, the total ductility, the construction period, and so on. A Three-Scale Fuzzy Analytical Hierarchy process is proposed by introducing the Three-Scale Analytical Hierarchy process and the trapezoid fuzzy number. The result of a calculation example shows that the T-FAHP is practical.

关键词： site conditions seismic fortification intensity mid-highrise residential building three-scale fuzzy analytical hierarchy process optimal selection

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Evaluation of collapse resistance of RC frame structures for Chinese schools in seismic design categories B and C

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Earthquake Engineering and Engineering Vibration 2011年第3期10卷 369-377页

作者： Tang Baoxin Lu Xinzheng Ye Lieping Shi Wei Department of Civil Engineering Yangzhou University Yangzhou 225009 China Key Laboratory of Structural Engineering and Vibration of China Education Ministry Department of Civil Engineering Tsinghua University Beijing 100084 China

According to the Code for seismic Design of Buildings （GB50011-2001）, ten typical reinforced concrete （RC） frame structures, used as school classroom buildings, are designed with different seismic fortification intensities （SFIs）（SFI=6 to 8.5） and different seismic design categories （SDCs）（SDC=B and C）. The collapse resistance of the frames with SDC=B and C in terms of collapse fragility curves are quantitatively evaluated and compared via incremental dynamic analysis （IDA）. The results show that the collapse resistance of structures should be evaluated based on both the absolute seismic resistance and the corresponding design seismic intensity. For the frames with SFI from 6 to 7.5, because they have relatively low absolute seismic resistance, their collapse resistance is insufficient even when their corresponding SDCs are upgraded from B to C. Thus, further measures are needed to enhance these structures, and some suggestions are proposed.

关键词： RC frame structures collapse resistance fragility curves seismic fortification intensity incremental dynamic analysis mega-earthquake

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