325m高淮安雨潤中央新天地超高層結(jié)構(gòu)選型
魏豐登，陳浩
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（上海聯(lián)創(chuàng)建筑設(shè)計有限公司， 上海 200093）
［摘要］超高層建筑結(jié)構(gòu)常采用伸臂桁架或環(huán)帶桁架來提高其自身剛度。結(jié)合具體工程項目，通過對框架-核心筒結(jié)構(gòu)設(shè)置伸臂桁架或環(huán)帶桁架加強(qiáng)層數(shù)量及位置的研究，分析伸臂桁架和環(huán)帶桁架提高框架-核心筒結(jié)構(gòu)剛度的效率。分析結(jié)果表明，伸臂桁架提高框架-核心筒結(jié)構(gòu)剛度的效率高于環(huán)帶桁架；當(dāng)僅設(shè)置環(huán)帶桁架加強(qiáng)層時，環(huán)帶桁架位于0.7倍結(jié)構(gòu)高度時最為有效，設(shè)置于結(jié)構(gòu)高區(qū)時提高結(jié)構(gòu)剛度的效率大于設(shè)置于結(jié)構(gòu)低區(qū)時，隨著環(huán)帶桁架加強(qiáng)層數(shù)量增加其對結(jié)構(gòu)剛度的貢獻(xiàn)效率快速下降。根據(jù)分析結(jié)果，最終采用鋼管混凝土鋼框架-鋼筋混凝土核心筒-環(huán)帶桁架混合結(jié)構(gòu)體系。［關(guān)鍵詞］混合結(jié)構(gòu); 伸臂桁架; 環(huán)帶桁架; 加強(qiáng)層中圖分類號：TU318 文獻(xiàn)標(biāo)識碼：A 文章編號：1002-848X(2016)08-0008-05Super high-rise structural system selection of Huai'an Yurun Central New World with 325m heightWei Fengdeng, Chen Hao(Shanghai United Design Group Co., Ltd., Shanghai 200093, China)Abstract: Super high-rise building structures usually adopt outriggers or belt members to improve its stiffness. Combined with specific engineering project, the number and location of story with outriggers or belt members of the frame-corewall structure were researched to analyze the efficiency of outriggers and belt members in improving the stiffness of the frame-corewall structure. The analysis results show that efficiency of outriggers in improving stiffness of frame-corewall structure is higher than that of the belt members. When only the storys with belt members is set, it is most effective when the belt members are located at 0.7 times the height of the structure. The efficiency to improve the structural stiffness is higher for belt members set at higher zone of the structure than the belt members set at lower zone. With the increase of the number of storys with belt members, the contribution efficiency of the story to structural stiffness rapidly declines. According to analysis results, the mixed structural system of steel frame with concrete filled steel tube-reinforced concrete corewall-belt members is adopted.Keywords: mixed structure; outrigger; belt member; story with outrigger or belt member
作者簡介：魏豐登，碩士，高級工程師，一級注冊結(jié)構(gòu)工程師，Email：weifengdeng@udg.com.cn。
