摘要
建筑物的破坏往往始于裂缝的出现和发展 ,因此必须研究裂缝的原因及危险性 .砼及砌体抗压强度高 ,抗拉强度很低 ,极限拉应变约为 0 .0 0 0 2～ 0 .0 0 0 5 ,危险截面是脆性破坏 ,因此裂缝的出现和开展是危险的 .通过对裂缝的观察分析 ,及时采取措施 ,倒塌是可以避免的 ,可使损失。
Damage of builing begins frequently with the appearance of micro crack and the opening of crack so that we must make a study of reason and risk of cracking.Concrete and masonry is weak in tension and crack when the tensile strain is of the order of 0.000 2～0.000 5,the dangerous section of split is very dangerous.We must take care of split about observation survey and analysis,so that the effective measure is adopted and the building turns aside from damage.The damage resulting was reduced to a minimum.
出处
《西北建筑工程学院学报（自然科学版）》
2002年第2期45-47,共3页
Journal of Northwestern Institute of Architectural Engineering
关键词
建筑物
裂缝
应力应变状态
内力重分布
脆性破坏
延性破坏
split of building
stress strain behavior
the secondary distribution of stress
brittle failure
ductile failure
