期刊论文

TOPOLOGY OPTIMIZATION OF MEGA BRACED SYSTEMS OF HIGH-RISE BUILDINGS BASED ON ICM METHOD

Sui, Yun-Kang(ysui@bjut.edu.cn)

中文

工程力学

1000-4750

2017

34

5

17-22 and 51

10.6052/j.issn.1000-4750.2015.10.0826

国家自然科学基金项目（11672103） 湖南省自然科学基金项目（2016JJ6016）

本校为第一机构

提出应用连续体结构拓扑优化ICM法对高层建筑大型支撑体系进行拓扑优化。针对高层建筑规范对结构刚度限值是以层间相对位移差形式给出、并结合结构拓扑优化特点,推导了相对位移差敏度分析的伴随法公式,有效提高了计算效率。应用ICM法建立位移约束下结构重量极小化的优化模型,与高层建筑规范对结构刚度限值要求的提法更符合,得到的最优拓扑完全满足规范要求。所提方法应用在概念设计阶段,提供了一种自动化的分析计算及优化设计工具,可以有效地弥补基于经验设计的不足。

A topology optimization design method is put forward for the mega braced systems of high-rise buildings by the ICM method of the topology optimization of continuum structures. In high-rise building codes, limits on structural rigidity are specified in the form of story drifts. Considering the characteristics of structural topology optimization, an adjoining method for sensitivity analysis of displacement difference is derived, and computational efficiency is improved. The optimization model with minimizing weight objective subject to displaceme...