武汉某超高层住宅风荷载设计及风洞试验对比分析

引用文献:

郭立行 苗伟 梁洪超 楼文娟. 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,2023,48(12):98-102.

GUO Lihang MIAO Wei LIANG Hongchao LOU Wenjuan. Comparative analysis on wind load design and wind tunnel test of a super high-rise residential building in Wuhan[J]. Building Structure,2023,48(12):98-102.

作者:郭立行 苗伟 梁洪超 楼文娟
单位:浙江绿城建筑设计有限公司厦门分公司 浙江大学建筑工程学院
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》(GB 50009—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;
作者简介: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。
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参考文献[1] 建筑结构荷载规范:GB 50009—2012[S].北京:中国建筑工业出版社,2012.
[2] 高层建筑混凝土结构技术规程:JGJ 3—2010[S].北京:中国建筑工业出版社,2011.
[3] 李永贵,李秋胜.某高层建筑结构风致响应干扰效应研究[J].建筑结构,2011,41(10):139-142.
[4] 武岳,孙瑛,郑朝荣,等.风工程与结构抗风设计[M].2版.哈尔滨:哈尔滨工业大学出版社,2019.
[5] 金新阳.建筑结构荷载规范理解与应用:按GB 5009—2012[M].北京:中国建筑工业出版社,2013.
[6] 石碧青,谢壮宁,倪振华.用高频底座力天平研究广州西塔的风效应[J].土木工程学报,2008,41(2):42-48.
[7] 张亮亮,吴云芳,余洋,等.高层建筑风荷载高频测力天平试验技术[J].重庆大学学报(自然科学版),2006,29(2):99-102.
[8] 顾明,周印,张锋,等.用高频动态天平方法研究金茂大厦的动力风荷载和风振响应[J].建筑结构学报,2000,21(4):55-61.
[9] 沈国辉,王宁博,孙炳楠,等.基于风洞试验的高层建筑风致响应和等效风荷载计算[J].浙江大学学报(工学版),2012,46(3):448-453.
[10] 张正维,杜平,ANDREW ALLSOP,等.重庆来福士广场抗风设计[J].建筑结构,2015,45(24):29-36.
Comparative analysis on wind load design and wind tunnel test of a super high-rise residential building in Wuhan
GUO Lihang MIAO Wei LIANG Hongchao LOU Wenjuan
(Greenton Architecture Design Co., Ltd. College of Civil Engineering and Architecture, Zhejiang University)
Abstract: Due to the lack of corresponding provisions for the calculation of across-wind load for the super high-rise buildings, which has a height of more than 150 meters, large height width ratio and depth width ratio of more than 2, in the Load code for the design of building structures(GB 50009—2012), wind tunnel tests should be used for supplementary verification according to the load code requirements. In this project, the high-frequency force balance technology which is widely used in domestic and foreign was used to conduct wind tunnel test on the model of a 183 meters super high-rise residential 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. The result of equivalent wind load was compared and analyzed with the result calculated according to the load code formula, and the possible problems in wind resistance design according to the load code formula were pointed out. In the structural design, wind tunnel test can be used to supplement and check the load code when necessary to ensure the safety of wind resistance design.
Keywords: super high-rise residential building; depth width ratio; wind tunnel test; high-frequency force balance; wind-induced vibration response; equivalent wind load
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