对称双肢井塔壁板内力分析

Internal Force Analysis of Symmetrical Bi-limb Wall Slabs of Winder Tower

本文将对称双肢井塔壁板筒化为对称多层单跨带刚域框架,探讨该类壁板手算求解的实用方法。从转角位移方程出发,导出了带刚域杆件形常数、修正形常数及修正载常数的计算公式。在两个工程算例中,分别将力矩分配法、无剪力分配法运用于对称多层单跨带刚域框架,在无剪力分配中引用了集体分配法。算例表明,本文方法是可行的。

The paper simplifies the symmetrical bi-limb wall slabs of winder tower to a symmetrical single-spanned multistory frame with rigid zone, in order to explore a practical hand calculation method for that kind structure. Based on the slope-deflection equations, the corresponding formulas have been derived for calculating the shape constants, the modified shape constants and the modified load constants of member with rigid zone. In two numerical examples, moment distribution and no-shear distribution methods have been applied to the symmetrical multistory single-spanned frame with rigid zone respectively, and the collective distribution method has been introduced into the no-shear distribution. The numerical examples show that the proposed method is feasible.