連接體位置對(duì)某雙塔高層建筑影響因素分析*
涂勁松1,陳金永2
- 摘 要
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(1 皖西學(xué)院建工學(xué)院,六安 237012; 2 山西省建筑設(shè)計(jì)研究院,太原 030011)[摘要]長(zhǎng)治市廣播集團(tuán)新聞大樓是帶有鋼桁架連接體的雙塔式組合結(jié)構(gòu)。為考察連接體不同位置對(duì)主體結(jié)構(gòu)的影響,建立了7種不同連接體位置的結(jié)構(gòu)模型,進(jìn)行了靜力、彈性和彈塑性比較分析。結(jié)果表明,在結(jié)構(gòu)滿足承載力、延性和其他響應(yīng)條件下,連接體位于塔樓總高度的2/5~3/5處時(shí)整體的受力較好。由于連接體的存在,雙塔中一個(gè)塔樓連接體處的地震剪力為全塔最大,而另一塔樓該處的地震剪力比較小,因此設(shè)計(jì)時(shí)必須考慮地震作用方向的不確定性,對(duì)連接體處塔樓的相關(guān)構(gòu)件進(jìn)行加強(qiáng)設(shè)計(jì)。[關(guān)鍵詞]組合構(gòu)件; 連接體位置; 模型優(yōu)化; 抗震分析中圖分類號(hào):TU318.1 文獻(xiàn)標(biāo)識(shí)碼:A 文章編號(hào):1002-848X(2014)23-0035-05Influence analysis of the connection position on a twin-tower high-rise buildingTu Jinsong1, Chen Jinyong2(1 Department of Architecture and Civil Engineering, West Anhui University, Liu′an 237012, China; 2 Architectural Design Institute of Shanxi Province, Taiyuan 030011, China)Abstract: Changzhi Broadcasting Group News building is a twin-tower composite structure with steel truss connection. To investigate the effects of different connection positions on the main structure, seven structural models with different connection positions were established and compared using static, elastic and inelastic analyses. The results show that on the conditions that the structure meets the requirements of bearing capacity, ductility and other responses, 2/5 to 3/5 of the total height is the best position for the connection with best mechanical conditions. Due to the existence of the connection, the seismic shear porce of the connection position of a tower is the largest but the seismic shear porce is relatively small in corresponding position of the other tower. Therefore, the uncertainty of the earthquake direction should be considered in the design and relevant members in the connection position should be strengthened.Keywords: composite component; connection position; model optimization; seismic analysis* 六安市定向委托皖西學(xué)院產(chǎn)學(xué)研項(xiàng)目(2014LWA006)。作者簡(jiǎn)介:涂勁松,碩士,講師,一級(jí)注冊(cè)結(jié)構(gòu)工程師,Email:tujs@wxc.edu.cn。參考文獻(xiàn)[1]JGJ 3—2010 高層建筑混凝土結(jié)構(gòu)技術(shù)規(guī)程[S].北京:中國建筑工業(yè)出版社,2011.[2]張新培.鋼筋混凝土抗震結(jié)構(gòu)非線性分析[M].北京:科學(xué)出版社,2003:7-10.[3]喬冠峰.高層建筑鋼筋混凝土框架剪力墻結(jié)構(gòu)的彈塑性動(dòng)力分析[D].太原:太原理工大學(xué),2006.[4]樊亭,王飛,闞明. 長(zhǎng)沙芙蓉廣場(chǎng)高位連接體結(jié)構(gòu)設(shè)計(jì)[J].建筑結(jié)構(gòu),2013,43(2):17-21.[5]GB 50011—2010 建筑抗震設(shè)計(jì)規(guī)范[S].北京:中國建筑工業(yè)出版社,2010.[6]中國建筑科學(xué)研究院PKPM CAD工程部.多層及高層建筑結(jié)構(gòu)彈塑性靜力、動(dòng)力分析軟件PUSH & EPDA用戶手冊(cè)及技術(shù)條件[M]. 2001年版.2001.[7]中國建筑科學(xué)研究院PKPM CAD工程部.多層及高層建筑結(jié)構(gòu)空間有限元分析與設(shè)計(jì)軟件SATWE用戶手冊(cè)及技術(shù)條件 [M].2005年版.2005:158-183.
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