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（華東建筑設(shè)計(jì)研究院有限公司， 上海 200002）

［摘要］天津茱莉亞學(xué)院地上結(jié)構(gòu)采用鋼框架-支撐體系，結(jié)構(gòu)體型復(fù)雜，同時(shí)存在平面不規(guī)則、連體、大懸挑結(jié)構(gòu)等超限情況。分析了天津茱莉亞學(xué)院超限結(jié)構(gòu)設(shè)計(jì)過(guò)程中的關(guān)鍵技術(shù)問(wèn)題及解決方案。在結(jié)構(gòu)設(shè)計(jì)中，基于抗震性能化設(shè)計(jì)原則提出了合理的性能目標(biāo)，首先應(yīng)用多種計(jì)算軟件進(jìn)行了彈性反應(yīng)譜、彈塑性時(shí)程和抗連續(xù)性倒塌等整體分析；其次對(duì)結(jié)構(gòu)主桁架、樓板應(yīng)力和復(fù)雜節(jié)點(diǎn)進(jìn)行了性能分析，全面考察了結(jié)構(gòu)在不同荷載工況作用下的受力性能，并采取了有針對(duì)性的構(gòu)造措施。經(jīng)多項(xiàng)分析驗(yàn)算，證實(shí)結(jié)構(gòu)能夠達(dá)到既定的抗震性能化目標(biāo)，確保結(jié)構(gòu)安全可靠。

［關(guān)鍵詞］天津茱莉亞學(xué)院； 鋼框架-支撐體系； 桁架； 樓板應(yīng)力； 性能化分析

中圖分類號(hào)：TU318+.2文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2020)03-0020-08

Key technical problems research in structure design of Tianjin Juilliard School

Li Baolong

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

Abstract:Steel frame-bracing system was used in the above ground structure of Tianjin Juilliard School. The structure was complex, and there were several beyond standard problems such as irregular plane, connected structure and large cantilever structure. The key technical problems and the corresponding solutions in the structure design of Tianjin Juilliard School were analyzed. In structural design, based on the principle of seismic performance-based design, reasonable performance objectives were put forward. The elastic response spectrum, elastic-plastic time history and anti-continuous collapse were analyzed by various calculation software firstly. And performance analysis of the main truss, floor slab stress and complex joints was carried out to study the mechanical behavior of the whole structure under different loading conditions, and targeted structural measures were taken. Through comprehensive analysis and calculation, it was proved that the structure can achieve the established goal of seismic performance, thus ensure safety and reliability of the structure.

Keywords:Tianjin Juilliard School; steel frame-bracing system; truss; floor slab stress; performance-based analysis

作者簡(jiǎn)介：李寶龍，碩士，工程師， Email: paulonlee@163.com。