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齊宏拓1，李琪琳2
（1 哈爾濱工業(yè)大學(xué)建筑設(shè)計研究院，哈爾濱150090; 2 奧雅納工程顧問，深圳518048）[摘要] 對鋼筋混凝土樓板倒塌破壞全過程在定性了解的基礎(chǔ)上進(jìn)行定量分析計算，利用有限元程序LS-DYNA對鋼筋混凝土樓板進(jìn)行了連續(xù)倒塌的碰撞仿真分析，通過模擬計算總結(jié)了其抗連續(xù)倒塌能力與樓板各項參數(shù)（板厚、配筋率、鋼筋問距）之問的關(guān)系，為鋼筋混凝土樓板在考慮連續(xù)倒塌時的參數(shù)設(shè)計提出了一些建議。并對結(jié)構(gòu)抗突變事件能力進(jìn)行評估，達(dá)到最終方便工程實踐應(yīng)用，對結(jié)構(gòu)連續(xù)倒塌進(jìn)行可靠預(yù)測和控制的目的。
[關(guān)鍵詞] 連續(xù)倒塌；力學(xué)分析；接觸碰撞Research on crush of reinforced slabs in progressive collapse
Qi Hongtuo1, Li Qilin2
(1 The Architectural Design and Research Institute of HIT, Harbin 150090, China; 2 ARUP, Shenzhen 518048, China)Abstract: The collision simulation analysis of the reinforced concrete slabs in the scenario of progressive collapse is carried out using LS-DYNA. Based on the results, the relation between the ability of the slabs to withstand the progresslve collapse and the controlling coefficients (such as thickness, ratio ofreinforcement and reinforcing bar spacing) are concluded, and some useful suggestions to the design of slabs are proposed.
Keywords: progressive collapse; mechanical analysis; contact-collision
