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（1 湖南大學(xué)土木工程學(xué)院 長沙 410082;2 北京邁達(dá)斯技術(shù)有限公司 100044）
【提要】 由鋼筋混凝土主框架與鋼次框架組成的混合巨型框架有三種施工方案。為了探討不同方案下巨型框架的受力性能，以4跨24層巨型框架結(jié)構(gòu)為例，采用有限元軟件MIDAS，考慮次框架梁柱與主框架梁柱為半剛性螺栓連接的影響，對(duì)比分析了其梁柱彎矩與主框架柱節(jié)點(diǎn)的位移。結(jié)果表明，三種施工方案下均需考慮施工過程帶來的不利影響，且不同施工方案下相應(yīng)的部位需加強(qiáng)配筋。
【關(guān)鍵詞】 混凝土 巨型框架 鋼框架 半剛性 施工順序 受力性能
Research on Behaviors of Mageframe Structures Considering Semirigid Under Three Construction Project/Shen Pusheng1, Meng Huanling1, Wu Xiaoping2(1 College o
f Civil Engineering, Hunan University, Changsha 410082, China; 2 MIDAS Information Technology Co., Ltd., Beijing 100044, China)
Abstract:Mageframe structure is composed of main and hypoframe, which has goo
d behaviors, and can be built by different ways according to construction schedule. Based on semirigid connection joints between main frame beamcolumn and hypoframe beamcolumn, the results of a 24story mageframe structure with 4 span were calculated by the universal finite element method of MIDAS,and the mome
nts and medal column joints displacements were compared between nonconsidering construction process and three kinds construction order. The influence of construction o
rder on behaviors of madeframe structures considering semirigid connection is discussed, and  suggestions are put forward in engineering practice.
Keywords:concrete; mageframe structures； steel frame; semirigid； construction order； behaviors