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（中國建筑西南設(shè)計研究院有限公司， 成都 610042）
［摘要］成都市青羊產(chǎn)業(yè)園會展中心呈下小上大的結(jié)構(gòu)形式，下部為鋼筋混凝土框架結(jié)構(gòu)+薄殼巨柱，上部為鋼結(jié)構(gòu)網(wǎng)架； 因有較多斜柱，1～3層間設(shè)置少量屈曲約束支撐，支撐在多遇地震及設(shè)防地震下增加并調(diào)整結(jié)構(gòu)剛度、提高承載力，罕遇地震下進(jìn)入耗能階段并提供附加阻尼； 下部鋼筋混凝土框架結(jié)構(gòu)存在局部大跨及大懸挑，上部鋼結(jié)構(gòu)網(wǎng)架連接鋼筋混凝土框架結(jié)構(gòu)及薄殼巨柱。對下部鋼筋混凝土框架結(jié)構(gòu)進(jìn)行多遇地震、設(shè)防地震及罕遇地震性能化分析；對大跨與大懸挑樓面進(jìn)行舒適度分析；可以得出，整體結(jié)構(gòu)及各構(gòu)件在地震作用下能夠滿足預(yù)定的性能目標(biāo)要求，大跨及大懸挑樓面滿足舒適度要求。對上部鋼結(jié)構(gòu)網(wǎng)架進(jìn)行風(fēng)荷載、溫度及地震作用在內(nèi)的整體力學(xué)性能分析，對薄殼巨柱進(jìn)行考慮幾何非線性及材料非線性的全過程穩(wěn)定承載力分析，可以得出，上部鋼結(jié)構(gòu)網(wǎng)架及薄殼巨柱具有較好穩(wěn)定性。采用拆除構(gòu)件法對薄殼巨柱進(jìn)行了防連續(xù)倒塌分析，可以得出，偶然事件導(dǎo)致的局部構(gòu)件失效不會引起結(jié)構(gòu)連續(xù)倒塌。
［關(guān)鍵詞］斜柱； 屈曲約束支撐； 性能化設(shè)計； 穩(wěn)定性分析； 防連續(xù)倒塌分析
中圖分類號：TU398+.2文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2020)19-0035-08
Structural design of Convention and Exhibition Center of Qingyang Industrial Park of Chengdu
CHEN Zhiqiang, WANG Jianbo, XIE Junqiao, SONG Qianyi, ZHAO Yibin
(China Southwest Architectural Design and Research Institute Co., Ltd., Chengdu 610042, China)
Abstract:Convention and Exhibition Center of Qingyang Industrial Park of Chengdu has a structure with small lower shape and large upper shape. The lower part adopts the reinforced concrete frame structure+thin-shell giant columns, and the upper part adopts the steel structure grid. Due to the large number of inclined columns, a small amount of buckling restraint braces are set between the 1st and 3rd floors. The braces increase and adjust the structural rigidity and improve the bearing capacity under frequent and fortification earthquakes, and enter the energy consumption stage and provide additional damping under rare earthquakes. The lower reinforced concrete frame structure had local large spans and large cantilevers, and the upper steel structure grid connects the reinforced concrete frame structure and the thin-shell giant columns. The performance analysis was conducted to the lower reinforced concrete frame structure under frequent, fortification and rare earthquakes, and the comfort analysis was conducted to large-span and large cantilevered floors, and it can be concluded that the overall structure and various components can meet the preset performance requirements under the action of earthquakes, and the large-span and large cantilevered floor meet the comfort requirements. The overall mechanical performance analysis was conducted to the upper steel structure grid under wind loads, temperature and seismic effects, and the whole process stability bearing capacity analysis was conducted to the thin-shell giant columns considering geometric nonlinearity and material nonlinearity. It can be concluded that the upper steel structure grid and thin-shell giant columns have good stability. The anti-progressive collapse analysis was conducted to the thin-shell giant columns by the dismantling component method, and it can be concluded that the partial component failure caused by the accident will not cause the progressive collapse of the structure.
Keywords:inclined column; buckling-restrained brace; performance-based design; stability analysis; anti-progressive collapse analysis
作者簡介：陳志強(qiáng)，碩士，教授級高級工程師，一級注冊結(jié)構(gòu)工程師，Email：1226639079@qq.com；通信作者：王建波，碩士，高級工程師，一級注冊結(jié)構(gòu)工程師，Email：wangjianbo0502@163.com。
