风洞
振动
结构工程
约束(计算机辅助设计)
模式(计算机接口)
灵敏度(控制系统)
风速
工程类
海洋工程
计算机科学
气象学
机械工程
声学
航空航天工程
操作系统
物理
电子工程
作者
Xuehui An,Haidong Lin,Jiyang Fu,Sun Wei-xing
标识
DOI:10.1016/j.engstruct.2021.113247
摘要
The high-frequency force balance (HFFB) wind tunnel test is one of the most widely used techniques to estimate wind effects on supertall buildings. This paper introduces a wind-resistant optimal design method of supertall buildings based on HFFB wind tunnel experiments. Based on the HFFB wind tunnel test and wind-induced vibration analysis, it provides a reliable and efficient method for structural optimization of supertall buildings with different types of structural members and multiple constraints. Taking advantage of the classic linear mode shape assumption of the HFFB technique, this paper also presents an alternative routine that transforms all different types of constraints into a uniform frequency constraint, which significantly reduces the computational intensity while still offers acceptable accuracy of optimization results. Moreover, the sensitivity of the optimization results to the adopted basic wind pressure value is discussed. The total material cost of the optimized structure increases exponentially with the increase of the basic wind pressure, indicating that the structural costs of supertall buildings are quite sensitive to the adopted basic wind pressure for structural design and its value should be precisely determined by the wind climate analysis of the construction site.
科研通智能强力驱动
Strongly Powered by AbleSci AI