超高層建筑核心筒超前施工結(jié)構(gòu)性能分析與設(shè)計(jì)*
朱川海1 ，方 朔2，趙 昕3，丁 鯤3
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(1 綠地控股集團(tuán)有限公司，上海 200023；2 同濟(jì)大學(xué)建筑工程系，上海 200092；3 同濟(jì)大學(xué)建筑設(shè)計(jì)研究院(集團(tuán))有限公司，上海 200092)[摘要] 近年來(lái)鋼-混凝土混合結(jié)構(gòu)體系在我國(guó)超高層建筑中得到廣泛應(yīng)用?？蚣?/span>-核心筒體系的施工流程需要核心筒超前外框架施工。考慮到施工期間結(jié)構(gòu)體系、材料特性和荷載作用的時(shí)變性，需要引入施工階段基于性能的結(jié)構(gòu)設(shè)計(jì)（PBSD）方法分析與控制處于不同施工階段的結(jié)構(gòu)狀態(tài)，解決超高層建筑施工過(guò)程分析與控制的問(wèn)題。本文提出了核心筒超前外框架施工層數(shù)的合理分析方法，并在建立的500m基準(zhǔn)超高層建筑模型上進(jìn)行了驗(yàn)證。研究結(jié)果表明，基于性能目標(biāo)對(duì)施工階段核心筒超前施工進(jìn)行分析是可行有效的，核心筒超前施工是施工階段需要控制和評(píng)估的重要參數(shù)。[關(guān)鍵詞] 超高層建筑;基于性能的結(jié)構(gòu)設(shè)計(jì);框架-核心筒結(jié)構(gòu);超前施工中圖分類(lèi)號(hào):TU974 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1002-848X(2013)S1-0985-06*上海市科技攻關(guān)計(jì)劃資助（編號(hào)：09dz1207704）;上海市青年科技啟明星計(jì)劃（跟蹤）資助（編號(hào)：11QH1402700）。通訊作者：方朔，Email:610640057@qq.com。Performance Analysis and Design of Built in Advance Tube of Super Tall BuildingZhu Chuanhai1, Fang Shuo2, Zhao Xin3, Ding Kun4(1 Greenland Group Co., Ltd., Shanghai 200023, China；2 Department of Building Engineering, Tongji University, Shanghai 200092, China; 3 Tongji Architectural Design (Group) Co., Ltd., Shanghai 210096, China)Abstract : Nowadays the hybrid structural system of steel and concrete is widely applied in super tall buildings. Construction process in construction stage of the frame -tube structure brings about tube stories built in advance. Allowed for time-variant performance of structural system, material property and loading in the construction stage, performance based structural design (PBSD) should be introduced to evaluate and control different structural states of different construction stages to solve problems of evaluation and control. A method to evaluate built in advance tube stories is proposed and a benchmark super tall building of 500m is established to illustrate the application of the proposed new method. The results show that the proposed performance objective based method is feasible and effective. Built in advance of tube needs special consideration and control in construction stage.Keywords : super tall building;performance based structural design (PBSD);frame-tube structure;build in advance
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