(1 浙江绿城建筑设计有限公司厦门分公司, 厦门 361008; 2 浙江大学建筑工程学院, 杭州 310058)

摘要: 对于高度超过 150m 且高宽比较大以及结构深宽比超过 2 的超高层建筑,由于《建筑结构荷载规范》 (GB50009—2012)对该类建筑的横风向风荷载计算缺乏相应的规定,因此荷载规范要求宜采用风洞试验进行补充验算. 本项目采用目前国内外广泛应用的高频测力天平技术对武汉某 183m 高超高层剪力墙结构住宅建筑的模型进行了风洞试验,分析了结构的风振响应,并给出了该建筑物在不同风向角的风荷载作用下产生的基底反力和顶部加速度. 将试验等效风荷载结果与按照荷载规范公式计算得到的结果进行对比分析,指出按照荷载规范公式进行结构抗风设计可能存在的问题,在结构设计中必要时可采用风洞试验对荷载规范进行补充验算以保证结构抗风设计的安全性.

关键词: 超高层住宅; 深宽比; 风洞试验; 高频测力天平; 风振响应; 等效风荷载

中图分类号:TU312+. 1、 TU973 文献标志码:A 文章编号:1002-848X(2023)12-0098-05

DOI:10. 19701 / j. jzjg. LS202134

Comparative analysis on wind load design and wind tunnel test of a super high-rise residentialbuilding in Wuhan

GUO Lihang1, MIAO Wei1, LIANG Hongchao2, LOU Wenjuan2

(1 Greenton Architecture Design Co. , Ltd. , Xiamen 361008, China; 2 College of Civil Engineering and Architecture,Zhejiang University, Hangzhou 310058, China)

Abstract: Due to the lack of corresponding provisions for the calculation of across-wind load for the super high-risebuildings, which has a height of more than 150 meters, large height width ratio and depth width ratio of more than 2, in theLoad code for the design of building structures (GB 50009—2012), wind tunnel tests should be used for supplementaryverification according to the load code requirements. In this project, the high-frequency force balance technology which iswidely used in domestic and foreign was used to conduct wind tunnel test on the model of a 183 meters super high-riseresidential building with shear wall structure in Wuhan. The wind-induced vibration response of the structure was analyzed,and then the base force and top acceleration of the building under the wind load of different wind directions were given. Theresult of equivalent wind load was compared and analyzed with the result calculated according to the load code formula, andthe possible problems in wind resistance design according to the load code formula were pointed out. In the structuraldesign, wind tunnel test can be used to supplement and check the load code when necessary to ensure the safety of windresistance design.

Keywords:super high-rise residential building; depth width ratio; wind tunnel test; high-frequency force balance; windinduced vibration response; equivalent wind load

第一作者:郭立行,硕士,一级注册结构工程师,主要从事超高层及结构抗震等设计分析工作,Email:919619531@ qq. com.

[引用本文] 郭立行,苗伟,梁洪超,等. 武汉某超高层住宅风荷载设计及风洞试验对比分析[J]. 建筑结构,2023,53(12):98-102. GUO Lihang,MIAO Wei,LIANG Hongchao,et al. Comparative analysis on wind load design and windtunnel test of a super high-rise residential building in Wuhan[J]. Building Structure,2023,53(12):98-102.