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張  堅(jiān)¹，路  崗¹，虞  煒¹，林  峰²，趙新源²
(1 上海建筑設(shè)計(jì)研究院有限公司，上海200041; 2 同濟(jì)大學(xué)建筑工程系，上海200092)

[摘要] 采用替代路徑法對華為上?；囟鄬拥鯓墙Y(jié)構(gòu)進(jìn)行抗連續(xù)倒塌設(shè)計(jì)。根據(jù)結(jié)構(gòu)受力特點(diǎn)，確定了計(jì)算模型及去除的關(guān)鍵構(gòu)件位置。材料強(qiáng)度設(shè)計(jì)值、荷載組合以及構(gòu)件失效準(zhǔn)則參考美國和我國相關(guān)規(guī)范中的要求。吊樓整體或大部墜落則認(rèn)為結(jié)構(gòu)破壞。計(jì)算表明，由于常規(guī)設(shè)計(jì)時吊樓具有合適的冗余度和較高的安全儲備，吊樓通過了抗連續(xù)倒塌驗(yàn)算。
[關(guān)鍵詞] 吊樓結(jié)構(gòu)；抗連續(xù)倒塌；替代路徑法

    Design oflocal suspension structure to resist progressive collapse
    Zhang Jian¹, Lu Gang¹, Yu We¹, Lin Feng², Zhao Xinyuan²
    (1 Shanghai Institute ofArchitectural Design&Research, Shanghai 200041, China; 2 Department of Building Engineering, Tongji University, Shanghai 200092, China)

Abstract: A local suspension structure was designed to resist progressive collapse by means of alternate path method. The structural model and the removal locations of the key elements were determined according to the conceptual analysis. The design strength ofthe materials, loads combination and failure criteria for structural elements followed the provisions addressed in American and Chinese design codes respectively. The results show that, the structure meet the design requirements of resisting progressive collapse due to the appropriate redundancy degree and relative high reliability of the structure in original design.
Keywords: local suspension structure; progressive collapse; alternate path method