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(廣東省建筑科學研究院集團股份有限公司, 廣州 510500)
摘要: 鑒于粵港澳地區(qū)建筑結構抗風規(guī)范存在差異大、不兼容的問題,就典型高層建筑結構抗風計算方法進行對比分析,并結合風洞試驗結果得出各規(guī)范在風荷載及荷載效應方面的寬嚴程度. 結果表明:粵港澳抗風規(guī)范風荷載計算基本風壓取值參數(shù)不同,取值方式及大小、影響因素的理論背景等也有不同程度的差異,按照廣東規(guī)范 B 類地貌計算所得風荷載與香港規(guī)范基本相當,澳門規(guī)范風荷載計算結果最大;廣東規(guī)范主要以層間位移角為結構風致位移控制目標,香港規(guī)范和澳門規(guī)范除了層間位移角,還對結構整體水平位移進行限制;在結構風振舒適度方面,只有廣東規(guī)范和香港規(guī)范對此進行了考慮,但其影響因素和寬嚴程度存在一定差異;粵港澳規(guī)范在風致結構水平位移方面的嚴格程度大致為:澳門規(guī)范>廣東規(guī)范>香港規(guī)范,在風振加速度方面,廣東規(guī)范嚴格程度要高于香港規(guī)范.
關鍵詞: 粵港澳規(guī)范; 高層結構; 抗風設計; 規(guī)范對比
中圖分類號:TU318 文獻標志碼:A 文章編號:1002?848X(2022)08?0027?09DOI:10. 19701 / j.jzjg.20201731
Comparative analysis of wind?resistance calculation of high?rise building structures in Guangdong,Hong Kong and Macao code
QIU Jianlei, SUN Lingzhi, LI Qingxiang, MA Yang, XU Wei, XIAO Danling
(Guangdong Provincial Academy of Building Research Group Co., Ltd., Guangzhou 510500, China)
Abstract: In view of the differences and compatibility of wind?resistance design codes for buildings in Guangdong, HongKong and Macao, the wind resistance calculation methods of typical high?rise building structures in these codes werecompared and analyzed, in which the leniency of wind loads and load effects of each code were carried out by wind tunneltests. The results show that the basic wind pressure in wind resistance design codes of Guangdong, Hong Kong and Macaoare different as well as their theoretical background, calculation method and influence factors. The wind load calculatedaccording to Guangdong code for exposure category B is basically equivalent to which calculated regarding to Hong Kongcode, while the calculation result of Macao code is the largest. Guangdong code mainly takes lateral drifts as the criteria ofestimating wind?induced displacement while Hongkong code and Macau code not only provide limitation on story drift,butalso on displacement. Only Guangdong code and Hong Kong code consider the structural wind?vibration comfort, there arecertain differences in influencing factors and the degree of leniency. The stringency of the limitation in lateral drifts amongthese three codes roughly follows the order of: Macao code > Guangdong code > Hongkong code. In terms of wind?vibrationacceleration, Guangdong code is stricter than Hong Kong code.
Keywords:Guangdong, Hong Kong and Macao code; high?rise building structure; wind?resistance design; comparison ofcode
第一作者:仇建磊,博士,主要從事結構抗風及抗震性能分析研究工作,Email:qiu_jianlei@ qq.com.
[引用本文] 仇建磊,孫凌志,李慶祥,等. 粵港澳規(guī)范高層建筑結構抗風計算對比分析[ J]. 建筑結構,2022,52(8):27?35,26. QIU Jianlei, SUN Lingzhi, LI Qingxiang , et al. Comparative analysis of wind?resistance calculation ofhigh?rise building structures in Guangdong, Hong Kong and Macao code[J]. Building Structure,2022,52(8):27?35,26.
