高层建筑三维空间协同工作体系弯扭耦联简化分析  

SIMPLIFIED ANALYSIS OF THE BEHAVIOUR OF A THREE-DIMEN-SIONAL SPACE COORDINATED SYSTEM SUBJECT TO LATERAL AND TORSIONAL LOADS IN TALL BUILDINGS

作　　者：周坚 罗健[1] 

机构地区：[1]北京建筑工程学院

出　　处：《土木工程学报》1989年第2期22-32,共11页China Civil Engineering Journal

摘　　要：本文将楼板连续化处理以后,采用通常的假定,把由芯筒、剪力墙和平面框架组成的复杂平面布置的三维空间协同工作体系简化为一个具有弹性支承的广义悬臂的弯扭耦联问题。建立了相应的微分方程,得到了弯扭耦联的闭合解;推导出三种典型荷载作用下的计算公式,并给出了设计图表。本文方法仅利用微机或个人电脑,甚至通过手算就能解决复杂问题。它具有计算工作量小,速度快等优点,并具有相当好的精确度,可供初步设计之用。In this paper, after treatment of the floor system with continuum tech-nique and by conventional assumption, a three-dimensional space coordinatedsystem of core- walls, shear- walls and frames with complicated plane form, hasbeen simplified to a flexi- twist coupling problem of generalized cantilever onelastic foundations. Corresponding differential equations are developed andclosed solutions for flexi-twist coupling are derived. Formulas correspondingto three classical lateral loads are given and the design coefficient diagramsfor calculation of displacements and internal forces are drawn. A numericalexample is eventually shown. The given method can solve complicated problems requiring only a microor personal computer or even a calculator. It has the advantages of less work,fast speed and high accuracy in calculation, and may be used in preliminary de-signs.

关 键 词：高层建筑 三维空间 弯扭耦联 

分 类 号：TU971[建筑科学—建筑理论]