黑龙江科技学院学报2011，Vol.21Issue(4)：321-324,4.
劲性钢筋轻骨料混凝土梁正截面受弯数值模拟
Numerical simulation of cross-section bending of concrete beam with formred steel light aggregate
摘要
Abstract
Aimed at the effective control of deformation of steel reinforced light aggregate concrete component,this paper is an analysis of relationship between member deformation of reinforced light aggregate concrete beam on the normal section and load by applying concentrated load across the mid-span and through numerical simulation.The simulation results show that the reinforced light aggregate concrete beam gives a bigger rigidity,but in case of the destruction,reinforced light aggregate concrete has a large deflections.The reinforced light aggregate concrete beam exhibits a better ductility.The test beam still has great bearing capacity when the compressive zone of light aggregate concrete is subjected to crushing damages.The increasing deformation is accompanied by the increasing deformation displacement of the concentrated load across the mid-span.40-ton load in the mid span gives the beam a dramatically increasing displacement deformation,with resultant cracking in light aggregate concrete.Concrete cracking is followed by degrading stiffness of the specimen section,the increasing crack width,and the widening crack width.Specimen beams,subjected to cracking,show crack width which tends to be relatively stable with the load growth,and a better crack resisting performance.The simulation results fits better with the experimental values.关键词
劲性钢筋轻骨料混凝土梁/正截面受弯/裂缝Key words
concrete beam with formed steel light aggregate/crack/cross-section bending分类
土木建筑引用本文复制引用
张俊杰,周永发,张秋媛..劲性钢筋轻骨料混凝土梁正截面受弯数值模拟[J].黑龙江科技学院学报,2011,21(4):321-324,4.基金项目
黑龙江省教育厅科学技术研究项目 （）
