摘要
在阐述结构上的荷载作用和裂缝产生原因的基础上 ,结合一工程事故 ,分析了温度、收缩和徐变等变形荷载作用产生裂缝的机理。根据工程实际计算了变形荷载作用下的内力 ,其结果与工程事故的情形一致。
On the basis of theoretical analysis about generation and development of crack on floorboard,its generating mechanism under the action of racking load,such as temperature,shrinkage and creep,is interpreted with a fault case.The internal forces caused by the action of racking load,which is calculated,are the same as the results of the actual measurement.In the end,some conclusions and propositions about the control and design of crack are presented.
出处
《建筑结构》
CSCD
北大核心
2003年第2期29-31,共3页
Building Structure
关键词
建筑物
楼面裂缝
变形
荷载
伸缩缝
温度应力
徐变
应力松驰
racking load
crack control
expansion joint
temperature stress
shrinkage stress
creep
stress relaxation
