底层框支框架部分承担的地震倾覆力矩计算方法分析  

Analysis on calculating method for overturning moment carried by frame part

作　　者：林超伟[1] 王兴法[1] 

机构地区：[1]香港华艺设计顾问(深圳)有限公司,深圳518031

出　　处：《建筑结构》2012年第11期84-86,共3页Building Structure

摘　　要：计算框支框架部分承担地震倾覆力矩Mc时,常用设计程序沿用框架-抗震墙结构求解公式得到的结果明显偏小。以框架-抗震墙结构作为算例,推导出采用底层框架柱的底部弯矩和轴力反算Mc的计算公式。计算表明,对框架-抗震墙结构,由本文公式得到的结果与规范结果相同;对于部分框支抗震墙结构,本文公式计算结果更合理,为量化框支框架部分倾覆力矩分担比提供依据。When calculating overturning moment Mc carried by frame part, the solution of traditional design programs, which adopts the formula of frame-shear wall structure, appears much smaller. Taking frame-shear wall structure as an example, a calculating formula of Mo was derived by using the bottom moment and axial force of columns. The results show that the formula is in accordance with the code. For transferred frame-shear wall structure, calculation results by the formula are more reasonable, which provides a basis for quantizing overturning moment ratio of frame part.

关 键 词：框架-抗震墙 倾覆力矩分担比 计算公式 

分 类 号：TU318[建筑科学—结构工程]