摘要
墙体对混凝土梁所起约束作用的试验表明，在墙体处于弹性阶段时，梁端所受约束弯矩随着上部墙体压应力和梁上荷载的增加而增加，但在墙体进入弹塑性阶段时，梁端所受弯矩不断下降，到墙体破坏前基本消失。据此，采用空间有限元分析程序对弹性阶段梁端所受约束情况进行分析，发现梁端约束弯矩的大小随上部墙体压应力和梁跨的加大而逐渐增加，给出考虑该弯矩影响的工程应用范围和方法，对完善设计、提高设计质量有参考作用。
The testes show that the beam restraining moment increases with the increasing of upper wall's direct stress and beam load in elastic stage, reduces with the increasing of beam load in elastic-plastic stage. Therefore, the restraining moment in elastic stage was analyzed by finite element analysis program. The numerical value of beam restraining moment with the increasing of upper wall's direct stress and beam load was obtained. Use range and method in that the restraining moment was takeninto account were put forward.
出处
《哈尔滨建筑大学学报》
2000年第5期15-19,共5页
Journal of Harbin University of Civil Engineering and Architecture
关键词
混合结构
墙体约束
计算简图
局部受压
墙体
composite structure
wall restraining
calculating diagram
local compression
rigidity structure cheme
finite element analyis
