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(1 浙江綠城建筑設(shè)計有限公司廈門分公司, 廈門 361008; 2 浙江大學(xué)建筑工程學(xué)院, 杭州 310058)
摘要: 對于高度超過 150m 且高寬比較大以及結(jié)構(gòu)深寬比超過 2 的超高層建筑,由于《建筑結(jié)構(gòu)荷載規(guī)范》 (GB50009—2012)對該類建筑的橫風(fēng)向風(fēng)荷載計算缺乏相應(yīng)的規(guī)定,因此荷載規(guī)范要求宜采用風(fēng)洞試驗進(jìn)行補(bǔ)充驗算. 本項目采用目前國內(nèi)外廣泛應(yīng)用的高頻測力天平技術(shù)對武漢某 183m 高超高層剪力墻結(jié)構(gòu)住宅建筑的模型進(jìn)行了風(fēng)洞試驗,分析了結(jié)構(gòu)的風(fēng)振響應(yīng),并給出了該建筑物在不同風(fēng)向角的風(fēng)荷載作用下產(chǎn)生的基底反力和頂部加速度. 將試驗等效風(fēng)荷載結(jié)果與按照荷載規(guī)范公式計算得到的結(jié)果進(jìn)行對比分析,指出按照荷載規(guī)范公式進(jìn)行結(jié)構(gòu)抗風(fēng)設(shè)計可能存在的問題,在結(jié)構(gòu)設(shè)計中必要時可采用風(fēng)洞試驗對荷載規(guī)范進(jìn)行補(bǔ)充驗算以保證結(jié)構(gòu)抗風(fēng)設(shè)計的安全性.
關(guān)鍵詞: 超高層住宅; 深寬比; 風(fēng)洞試驗; 高頻測力天平; 風(fēng)振響應(yīng); 等效風(fēng)荷載
中圖分類號:TU312+. 1、 TU973 文獻(xiàn)標(biāo)志碼:A 文章編號: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,碩士,一級注冊結(jié)構(gòu)工程師,主要從事超高層及結(jié)構(gòu)抗震等設(shè)計分析工作,Email:919619531@ qq. com.
[引用本文] 郭立行,苗偉,梁洪超,等. 武漢某超高層住宅風(fēng)荷載設(shè)計及風(fēng)洞試驗對比分析[J]. 建筑結(jié)構(gòu),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.
