同济大学学报（自然科学版）2025，Vol.53Issue(5)：686-696,11.DOI:10.11908/j.issn.0253-374x.23353
基于风洞试验的海峡两岸高层建筑顺风向风荷载安全性评估
Safety Evaluation of Along-Wind Loads on High-Rise Buildings Between Chinese Taiwan and Chinese Mainland Based on Wind Tunnel Test
摘要
Abstract
To clarify the reasonable values of along-wind loads on high-rise buildings between Chinese Taiwan and Chinese mainland,a comparative analysis was conducted based on wind load distribution and base response calculated according to the standards of both sides.Additionally,a rigid model pressure measurement wind tunnel test was performed to evaluate the safety of the along-wind load values.The results show that as the height-to-width ratio of the structure and ground roughness decreases,the calculated along-wind loads in both standards gradually increase.However,the increase in the standard of Chinese Taiwan is pronounced than that in the standard of Chinese mainland.Specifically,as the height-to-width ratio increases and ground roughness decreases,the calculated wind loads in the standard of Chinese Taiwan are relatively high.Furthermore,as the height-to-width ratio increases,the gust response factor in the standard of Chinese Taiwan gradually increases,while the equivalent wind vibration coefficient in the standard of Chinese mainland remains essentially unchanged.The primary source of the in along-wind loads between the two standards is the variation in methods for determining the structural dynamic amplification factor.For wind fields under the terrain category A,B and C,of the standard of Chinese Taiwan,wind tunnel test reveals that the shape of the along-wind load distribution aligns closely with the standard of Chinese Taiwan but differs significantly from the standard of Chinese mainland.When the extreme along-wind base response derived from the wind tunnel test is used as a benchmark,the relative error dispersion of values in the standard of Chinese Taiwan is noticeably larger than that in the standard of Chinese Taiwan.The results suggest that when the height-to-width ratio is smaller,the standard of Chinese mainland yields relatively safer results,while the standard of Chinese Taiwan provides safer results when the ratio is larger.关键词
风荷载/台湾海峡/高层建筑/规范/顺风向/风洞试验Key words
wind load/Taiwan strait/high-rise building/standard/along-wind direction/wind tunnel test分类
土木建筑引用本文复制引用
董锐,梁斯宇,王琳凯,邱凌煜,罗元隆,刘国买..基于风洞试验的海峡两岸高层建筑顺风向风荷载安全性评估[J].同济大学学报（自然科学版）,2025,53(5):686-696,11.基金项目
福建省科技创新战略研究联合项目(2022R0154) （2022R0154）
