884aa四虎影成人精品,99久久国产综合精品女图图等你,97在线观看永久免费视频,久久精品国产精品亚洲38,ⅵdeodesetv性欧美

（華東建筑設(shè)計(jì)研究總院，上海 200002）

［摘要］成都大魔方演藝中心大陀螺主體結(jié)構(gòu)為陀螺造型，結(jié)構(gòu)設(shè)計(jì)采用鋼筋混凝土框架剪力墻結(jié)構(gòu)體系，用懸挑桁架實(shí)現(xiàn)結(jié)構(gòu)平面的逐層外挑。通過對(duì)結(jié)構(gòu)的受力特點(diǎn)以及不規(guī)則情況的分析，提出了針對(duì)性的加強(qiáng)措施，并對(duì)拉彎構(gòu)件采用有粘結(jié)預(yù)應(yīng)力混凝土構(gòu)件。針對(duì)這種特殊的結(jié)構(gòu)體系，分析了樓板剛度和施工后澆帶對(duì)結(jié)構(gòu)主要構(gòu)件受力的影響，結(jié)果表明，對(duì)不同的構(gòu)件受力影響有所不同，設(shè)計(jì)時(shí)取各種情況下的包絡(luò)結(jié)果作為關(guān)鍵構(gòu)件的設(shè)計(jì)依據(jù)。罕遇地震作用下的彈塑性分析表明，主體結(jié)構(gòu)能達(dá)到預(yù)定的抗震性能目標(biāo)。

［關(guān)鍵詞］懸挑桁架; 預(yù)應(yīng)力混凝土; 樓板剛度; 施工后澆帶; 彈塑性分析

中圖分類號(hào)：TU393.3      文獻(xiàn)標(biāo)識(shí)碼：A      文章編號(hào)：1002-848X(2014)07-0037-06

Main structural design and analysis on the main venue of Chengdu Large Magic Cube Performing Arts Center

Jiang Benwei

 (East China Architectural Design & Research Institute, Shanghai 200002, China)

Abstract: The main structure of the main venue of Chengdu Large Magic Cube Performing Arts Center likes a gyro. The structural design adopts the reinforced concrete frame-shear wall structural system,  the cantilever truss is used to achieve the layer-by-layer cantilever. The loading features and the irregularity of the structure were analyzed and some strengthening measures were taken, and the prestressed technology was adopted for the tension-flexure member. For this particular structural system, the mechanical behavior of the key components under without floor stiffness and with post-poured strip was studied. The results indicate that the influence is different in any components, so that the envelope results of all models were considered during the design course. The elastic-plastic analysis under the rare earthquake indicates that the main structure can meet the requirements of the seismic performance objectives.

Keywords: cantilever truss; prestressed concrete; floor stiffness; post-poured strip; elastic-plastic analysis

*國家科技支撐計(jì)劃資助（2011BAJ09B01）。

作者簡介：蔣本衛(wèi)，碩士，工程師，一級(jí)注冊結(jié)構(gòu)工程師，Email: benwei_jiang@ecadi.com。

參考文獻(xiàn)

［1］張耀康，王帥，周健. 成都大魔方演藝中心小陀螺結(jié)構(gòu)選型與設(shè)計(jì)［J］. 建筑結(jié)構(gòu)，2012，42（5）：140-144.

［2］周慧，周健，張耀康，等. 成都大魔方演藝中心大陀螺鋼屋蓋結(jié)構(gòu)設(shè)與分析計(jì)［J］. 建筑結(jié)構(gòu), 2014，44（7）：43-49.

［3］成都大魔方項(xiàng)目工程場地地震安全性評(píng)價(jià)報(bào)告［R］. 北京: 中國地震災(zāi)害防御中心, 2011.

［4］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.

［5］成都大魔方項(xiàng)目測壓風(fēng)洞試驗(yàn)報(bào)告［R］. 北京: 建研科技股份有限公司, 2011.

［6］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.

［7］FEMA 273 NEHRP guidelines for the seismic rehabilitation of buildings［S］. Washington D. C.: Federal Emergency Management Agency, 1996.