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天津大剧院采用了国内外应用不多的吊挂结构体系。以天津大剧院的吊挂结构为工程背景,对其进行抗连续倒塌性能分析。根据吊杆负荷面积,采用基于能量的方法,计算吊杆的重要性系数,确定关键吊杆。对单根关键吊杆失效和两根关键吊杆同时失效的情况,采用静力非线性方法对剩余结构进行响应分析。结果表明,单根吊杆失效时,吊挂结构不会发生坍塌;标高+20.9m吊挂层转角区域两根吊杆同时失效时,吊挂结构发生局部坍塌,使用过程中应注意该区域吊杆的监测。
Tianjin Grand Theater used at home and abroad less hanging structure system. Taking the hanging structure of Tianjin Grand Theater as the engineering background, the anti-continuous collapse performance analysis is carried out. According to the load area of the boom, an energy-based method is used to calculate the importance coefficient of the boom and determine the key boom. For the failure of a single key boom and the failure of two key booms at the same time, the static nonlinear method is used to analyze the remaining structures. The results show that the suspension structure will not collapse when the single suspension rod fails and the suspension structure collapses locally when two suspension rods in the corner area of elevation + 20.9m suspend layer fail at the same time. Attention should be paid to the suspension Rod monitoring.