高层建筑筒体结构在扭转作用下框筒裙梁高度的优化分析  

Optimal analysis on the altitude of the spandrel beam in the framed tube core structure under torsioned loading

作　　者：谭俊清[1] 李青宁[1] 梁兴文[1] 

机构地区：[1]西安建筑科技大学建筑工程系

出　　处：《西安建筑科技大学学报（自然科学版）》1999年第3期284-287,共4页Journal of Xi'an University of Architecture & Technology(Natural Science Edition)

摘　　要：当框筒结构中裙梁的高度增大时，整体的抗扭刚度随之增大，可以减少剪力滞后效应，对结构有利，但同时结构所受地震力也增大，对结构不利．为解决这一问题，本文提出了一种基于连续化数学模型的优化方法，给出了多目标规划的评价函数．通过对算例的分析，给出可用于设计的裙梁最优高度参考值．When the altitude of spandrel beam in the framed tube core structure grows, the torsion rigidity of the whole structure becomes stronger, so the shear lag effect is reduced, which is useful. But, at the same time, the seismic force on the structure becomes greater. To solve this problem, the paper presented an optimal method based on the mathematical model of continuous system and provided an evaluation function of multiobjective programming. According to the example, given the reference figures of optimal height of spandrel beam, it can be used in designing.

关 键 词：优化 裙梁高度 扭矩 高层建筑 筒体结构 

分 类 号：TU973.2[建筑科学—结构工程] TU973.17