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�������պ����ѧѧ�� 2006, Vol. 32 Issue (03) :357-360    DOI:
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�콨��1, κ��1, ��Ӧ��2*
1. �������պ����ѧ ��ľ����ϵ, ���� 100083;
2. �廪��ѧ ������ѧϵ, ���� 100084
Deformation capability and load-carrying capability of steel plate element under high temperature
Zhu Jianming1, Wei Dong1, Liu Yinghua2*
1. Dept. of Civil Engineering, Beijing University of Aeronautics an d Astronautics, Beijing 100083, China;
2. Dept. of Engineering Mechanics, Tsinghua University, Beijing 100 084, China

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Abstract�� In the plastic design and anti-seismic design of steel structures, It is demanded that the component plates undergo large local deformations for the plastic hinge to develop and the load-carrying capability doesn’t decreasebecause of local buckling of the plates. Based on the basic principles and methods which are used to analyze the deformation capability and load-carrying capability of steel plates under normal temperature condition, the nonlinear finite element method was used to analyze the buckling behaviors of four-edge supported plates under uniform uniaxial compression and high temperature. The width-to-thickness ratio, constraint conditions of boundary and initial geometric imperfections were all considered. The relationships among the width-to-thickness ratio, deformation capability and the load-carrying capability were carefully studied. Furthermore, the formulas and the relationships among width-to-thickness ratio, deformation capability and load-carrying capability were also showed according to the parameter analysis, which can be used to evaluate the ductility of steel plates under high temperature.
Keywords�� fire   steel plate element   width-to-thickness ratio   deformation   load-carrying     
Received 2005-06-20;
Fund:

�����ص�����о�ר�����������Ŀ(2001CB409603)

About author: �콨��(1963-),��,�����γ���,������, zjm2000@buaa.edu.cn.
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�콨��, κ��, ��Ӧ��.����ֹ��������µı��������ͳ�����������[J]  �������պ����ѧѧ��, 2006,V32(03): 357-360
Zhu Jianming, Wei Dong, Liu Yinghua.Deformation capability and load-carrying capability of steel plate element under high temperature[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2006,V32(03): 357-360
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