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(1 廣東省建筑設(shè)計(jì)研究院, 廣州 510010; 2 安邸建筑環(huán)境工程咨詢(上海)有限公司, 上海 200092)
[摘要]通過提煉匯總及逐項(xiàng)解讀,對(duì)粵港澳三地規(guī)范體系中關(guān)于風(fēng)荷載計(jì)算方法及其主要影響參數(shù),以及風(fēng)致位移響應(yīng)和加速度控制標(biāo)準(zhǔn)等方面進(jìn)行了系統(tǒng)對(duì)比。通過假想案例對(duì)三地規(guī)范風(fēng)致位移角控制的寬嚴(yán)程度進(jìn)行了比較,結(jié)果表明三地控制原則存在一定差異,粵規(guī)范控制標(biāo)準(zhǔn)居中?;谀惩黄苹浺?guī)范限值的真實(shí)案例,從結(jié)構(gòu)整體穩(wěn)定、抗震性能、非結(jié)構(gòu)構(gòu)件及機(jī)電設(shè)備需求等方面探討了風(fēng)致位移角突破規(guī)范限值的可行性;并介紹了由此引起風(fēng)振加速度偏大時(shí)的應(yīng)對(duì)方案,建議視乎項(xiàng)目定位及對(duì)舒適度的需求標(biāo)準(zhǔn),而考慮采用TSD等吸能減振措施改善結(jié)構(gòu)的風(fēng)振舒適度。
[關(guān)鍵詞]粵港澳地區(qū); 設(shè)計(jì)規(guī)范; 抗風(fēng)設(shè)計(jì); 風(fēng)致位移; 規(guī)范限值比; TSD減振
中圖分類號(hào):TU973-2文獻(xiàn)標(biāo)識(shí)碼:A文章編號(hào):1002-848X(2020)10-0012-11
Some issues about wind-resistant design for super high-rise building structures in Guangdong, Hong Kong and Macao Area
LUO Chiyu1, LIN Jinghua1, XIE Yike1, LI Dan2, DU Xiangdong2
(1 Architectural Design and Research Institute of Guangdong Province, Guangzhou 510010, China;2 Rowan Williams Davies & Irwin Inc, Shanghai 200092, China)
Abstract:Through refining, summarizing and item-by-item interpretation, a systematic comparison was made of wind load calculation methods and their main influencing parameters, as well as wind-induced displacement response and acceleration control standards in Guangdong, Hong Kong, and Macao code systems. Through imaginary cases, the degree of control of the wind-induced displacement angle of the three places was compared, and the results show that there are some differences in the control principles of the three places, and Guangdong code control standard is in the medium position. Based on a real case that exceeded Guangdong code limit value, the feasibility of breaking the wind-induced displacement angle beyond the code limit value was discussed from the aspects of overall structural stability, seismic performance, and requirements for non-structural components and mechanical and electrical equipment; and the countermeasures were introduced for the conditions of the too high wind vibration acceleration. It is suggested that depending on the project positioning and the requirements for comfort, energy absorption and vibration reduction measures such as tuned sloshing damper (TSD) were considered to improve the wind vibration comfort of the structure.
Keywords:Guangdong, Hong Kong and Macao Area; design code; wind-resistant design; wind-induced displacement; limit value ratio; TSD vibration reduction
作者簡(jiǎn)介:羅赤宇,碩士,教授級(jí)高級(jí)工程師,一級(jí)注冊(cè)結(jié)構(gòu)工程師,Email:luochiyu@163.com。
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