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（哈爾濱工業(yè)大學(xué)建筑設(shè)計研究院， 哈爾濱 150090）
［摘要］長春市九臺區(qū)青少年活動中心平面呈Z字形，存在平面凹凸不規(guī)則、扭轉(zhuǎn)不規(guī)則和豎向構(gòu)件不連續(xù)等抗震不利因素，通過設(shè)置兩道結(jié)構(gòu)縫，將結(jié)構(gòu)分為A1，A2和A3三個區(qū)。A3區(qū)屋面高度19m，采用框架-剪力墻結(jié)構(gòu)，端部底層通過兩榀V形柱對上部小柱網(wǎng)進(jìn)行結(jié)構(gòu)轉(zhuǎn)換，是本工程結(jié)構(gòu)設(shè)計的重點和難點。對A3區(qū)結(jié)構(gòu)進(jìn)行了抗震性能化設(shè)計，通過設(shè)定適宜的抗震性能目標(biāo)，采用YJK-EP軟件對結(jié)構(gòu)進(jìn)行了彈塑性時程分析，結(jié)構(gòu)滿足“大震不倒”的設(shè)防要求。轉(zhuǎn)換構(gòu)件為型鋼混凝土，分別采用XTRACT和ABAQUS軟件進(jìn)行了轉(zhuǎn)換柱正截面承載力驗算和梁柱節(jié)點受力分析，確保了構(gòu)件和節(jié)點連接的可靠性。
［關(guān)鍵詞］長春市青少年活動中心； V形轉(zhuǎn)換柱； 抗震性能目標(biāo)； 彈塑性分析； 節(jié)點分析
中圖分類號：TU973.3+1文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2018)12-0066-04
Conversion structural design of V-columns of Youth Activity Center in Changchun
Liu Zhizhou, Jia Jun, Yu Jihua, Wang Shanzhang
(The Architectural Design and Research Institute of HIT, Harbin 150090, China)
Abstract:The plane of Youth Activity Center in Jiutai District of Changchun is “Z-shaped”arrangement. There are seismic adverse factors of planar concave-convex irregularity, torsional irregularity and vertical component discontinuity. By setting two structural joints, the structure is divided into three parts: A1, A2 and A3. In the A3 area, the roof height is 19m, and the frame-shear wall structure is adopted. Upper small-span column is transformed by two pieces of V-shaped columns at the ends of bottom layer, which is the key and difficult point in the structural design of the project. Performance-based seismic design was conducted on structure in A3 area by setting suitable seismic performance objectives, and YJK-EP software was used to conduct elasto-plastic time-history analysis of the structure to make the structure meet the fortification requirements of“no collapsing under rare earthquake”. The conversion components are steel reinforced concrete. XTRACT and ABAQUS software were applied to check the normal section bearing capacity of the conversion column and the stress analysis of the beam-column joints respectively. The reliability of the components and joints was ensured.
Keywords:Youth Activity Center in Changchun; V-shaped conversion column; seismic performance objective; elasto-plastic analysis; joint analysis
作者簡介：劉志周，碩士，工程師，Email：liuzhizhou168@163.com。
