钢筋混凝土框架-斜撑结构的震害预测
- 摘 要
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成 浩* (总后建筑设计研究院 北京 100036)严士超 (天津大学土木系 300072)
[提要] 通过对钢筋混凝土框架-斜撑结构6个典型工程的480余例结构弹塑性地震反应分析,并结合有关试验结果,确定了框架-斜撑结构由层间延伸率人小决定的破坏程度,建立了一个以层间延伸率为判据的钢筋混凝土框架-斜撑结构房屋的震害预测方法。最后,通过对一栋8层框架-斜撑结构试验工程的弹塑性时程分析,验证了方法的正确合理性。
[关键词] 钢筋混凝土框架-斜撑结构 弹塑性位移 层屈服剪力系数 层问延伸率 震害预测
An carthquake damage prcdiction mcthod for R.C framc-braccd structure is prcscntcd bascd on the storcy ductility factor. The rclationship bctwccn storcy ductility factor and damage dcgrce is cstablishcd on the basis of 480 clastic-plastic rcsponscs of 6 typical R.C.framc-braccd structures, as wcll as some rclatcd cxpcrimcntal data. At last,a calculating example for carthquake damage prcdication of a 8-storcy R.C.framc-braccd structure by using the prcscntcd mcthod is givcn. It is provcd that the prcscntcd mcthod is rcasonablc.
Keywords: R.C.framc-braccd structurc; clastic-plastic dcformation; story yicld shcar cocfficicnt; storcy ductility factor; carthquakc-damage prcdiction