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《Journal of Zhejiang University(Engineering Science)》 2007-09
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Simplified calculation and analysis for shrinkage stress with in ultra-long wall with soleplate

GUO Chang-sheng1,KAN Jian-zhong2,ZHAO Xi-qian1,3,JIAO Bin-ru1(1.Department of Civil Engineering,Ningbo Institute of Technology,Zhejiang University,Ningbo 315100,China;2.Architecture Design and Research Institute of Zhejiang University,Hangzhou 310027,China;3.Graduate School of Engineering Mechanics,Nanchang University,Nanchang 330029,China)  
A simplified calculation formula was presented by extending Wangtiemeng's method in order to analyze the shrinkage stress distribution within ultralong reinforced concrete wall panel with soleplate and control cracks.The method considered the soleplate's influence on the wall,and treated separate pipes as spring by stiffness averaging method.The influences of wall's length,with or without soleplate,soleplate thickness,contraction rigidity,pre-stress and bend effect on the shrinkage stress within the ultra-long wall were calculated.The results show that the soleplate's influence on the shrinkage stress in the wall is evident;the influence of bend effect appears within a small region near the end of the wall,and is not in the control area and without control effect;the pre-stress applied on the end of the wall affects weakly the stress near the symmetry face of the wall;and the shrinkage stress is reduced by decreasing the wall's length,but the impact is limited.
【CateGory Index】: TU375
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