- 摘 要
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(1 大連市建筑設(shè)計研究院有限公司，大連116021；2 北京工業(yè)大學工程抗震與結(jié)構(gòu)診治北京市重點實驗室,北京100124)
［摘要］大連國際會議中心工程以平面分布不規(guī)則的14個筒體為整個工程結(jié)構(gòu)水平和豎向主要支承構(gòu)件。由于結(jié)構(gòu)形式的特殊性，筒體受力形式有別于傳統(tǒng)高層建筑結(jié)構(gòu)中的核心筒。為滿足抗震設(shè)計及結(jié)構(gòu)連接構(gòu)造的需要，工程采用內(nèi)藏帶斜支撐型鋼桁架混凝土組合筒體，并針對受力特點采取必要的構(gòu)造措施。為深入研究該筒體性能，結(jié)合工程實際進行了縮尺筒體模型抗震試驗研究，包括剛度及其退化過程、承載力、延性、抗震耗能能力及破壞特征、構(gòu)造措施有效性等。根據(jù)試驗結(jié)果，針對試驗中薄弱部位采取進一步加強措施，提高筒體抗震能力。研究表明，內(nèi)藏帶斜支撐型鋼桁架混凝土組合筒體具有很高的承載能力；內(nèi)藏鋼框架可明顯提高筒體承載力、延性，阻止剛度退化；筒體不規(guī)則洞口形成薄弱部位，雖然采取若干措施，支撐筒整體承載力仍然有較明顯的降低，因此應(yīng)盡量減少短墻開洞，同一截面處不應(yīng)開多個洞口。
［關(guān)鍵詞］內(nèi)藏帶斜支撐型鋼桁架混凝土組合筒體；抗震試驗；承載力；破壞特征；設(shè)計優(yōu)化
中圖分類號：TU398文獻標識碼：A文章編號：1002-848X(2012)02-0027-06
Design and test research on the support tube in Dalian International Conference Center
Wang Lichang1，Wang Guolei1，Liu Nan1，Zuo Qinglin1，Cao Wanlin2，Ji Dahai1，Qu Xinfan1 (1 Dalian-Architectural Design & Research Institute Co., Ltd., Dalian 116021, China; 2 Earthquake Engineering and Structural Treatment of Beijing Key Laboratory, Beijing University of Technology, Beijing 100124, China)
Abstract:The structure of Dalian International Conference Center consists of 14 concealed steel frame reinforced concrete transport cylinders resisting the entire building vertical load and horizontal lateral. Due to the peculiar structure of the cylinder, the force is different from the traditional structure of the high-rise building of the core barrel. In order to meet the aseismic design and-connection construction of structure , the hide inside with inclined brace steel truss concrete composite cylinder-was used in this project, and-tectonic measures were taken according to the necessary stress characteristics. For the further study of the cylinder performance, the scale cylinder model experiment was studied on the seismic behavior combined with practical engineering, including its stiffness and deterioration process, bearing capacity, ductility, energy dissipation capacity, failure characteristics and tectonic measures effectiveness. Based on the test results, further measures were taken for the test of weak parts in the engineering in order to improve the seismic capacity of cylinder. Research shows that inside with inclined brace steel frame reinforced concrete combined cylinder has-high bearing capacity. Concealed steel frame can obviously improve the cylinder bearing capacity, ductility, stiffness degradation of cylinder block. Irregular hole forms a weak position, although a number of measures are taken, the bearing capacity of support tube is still obviously decreased. Therefore, minimizing openings in the short wall is necessary and the same section should not have more than one hole.
Keywords:hide inside with inclined brace steel truss concrete composite cylinder; seismic test; bearing capacity; failure characteristics; design optimization
作者簡介：王立長，教授級高級工程師，Email:wang19490621@sina.com。
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