A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Cable dome structure progressive collapse risk judgment method and system
The invention discloses a progressive collapse risk judgment method and system for a cable dome structure. The method comprises the following steps: (1) loading an initial cable dome structure model, calculating an importance coefficient of a rod piece, and judging a progressive collapse risk category of which the rod piece is removed; (2) normalizing the rod pieces according to importance coefficients, then sorting the rod pieces, and searching adjacent rod pieces with different progressive collapse risk categories; (3) adjusting the cable dome structure model, so that the importance coefficient of the rod piece changes within the value range of the rod piece classification critical point, the progressive collapse risk category of the rod piece is judged, and the importance coefficient value of the rod piece which just enables the rod piece classification results to be different is searched to serve as the rod piece classification critical point; and (4) judging the progressive collapse risk category. According to the method, the failure mode and the collapse mechanism are defined, the importance coefficient of each component in the progressive collapse resisting process is determined as the decisive factor of the progressive collapse risk, and the progressive collapse risk is reduced as much as possible with low calculation cost.
本发明公开了一种索穹顶结构连续倒塌风险判断方法及系统。所述方法包括(1)载入初始索穹顶结构结构模型，计算杆件重要性系数，判断移除所述杆件的连续倒塌风险类别；(2)将杆件按照重要性系数归一化后进行排序，搜索相邻且连续倒塌风险类别不同的杆件；(3)调整所述索穹顶结构模型，使得杆件重要性系数在所述杆件分类临界点取值范围内变化，并判断所述杆件的连续倒塌风险类别，搜索恰能使得杆件分类结果不同的杆件重要性系数值作为杆件分类临界点；(4)判断连续倒塌风险类别。本发明明确其失效模式和倒塌机理，确定各类构件在抗连续倒塌过程中的重要性系数为连续倒塌风险的决定性因素，以较小地计算代价尽可能降低其连续倒塌风险。
Cable dome structure progressive collapse risk judgment method and system
The invention discloses a progressive collapse risk judgment method and system for a cable dome structure. The method comprises the following steps: (1) loading an initial cable dome structure model, calculating an importance coefficient of a rod piece, and judging a progressive collapse risk category of which the rod piece is removed; (2) normalizing the rod pieces according to importance coefficients, then sorting the rod pieces, and searching adjacent rod pieces with different progressive collapse risk categories; (3) adjusting the cable dome structure model, so that the importance coefficient of the rod piece changes within the value range of the rod piece classification critical point, the progressive collapse risk category of the rod piece is judged, and the importance coefficient value of the rod piece which just enables the rod piece classification results to be different is searched to serve as the rod piece classification critical point; and (4) judging the progressive collapse risk category. According to the method, the failure mode and the collapse mechanism are defined, the importance coefficient of each component in the progressive collapse resisting process is determined as the decisive factor of the progressive collapse risk, and the progressive collapse risk is reduced as much as possible with low calculation cost.
本发明公开了一种索穹顶结构连续倒塌风险判断方法及系统。所述方法包括(1)载入初始索穹顶结构结构模型，计算杆件重要性系数，判断移除所述杆件的连续倒塌风险类别；(2)将杆件按照重要性系数归一化后进行排序，搜索相邻且连续倒塌风险类别不同的杆件；(3)调整所述索穹顶结构模型，使得杆件重要性系数在所述杆件分类临界点取值范围内变化，并判断所述杆件的连续倒塌风险类别，搜索恰能使得杆件分类结果不同的杆件重要性系数值作为杆件分类临界点；(4)判断连续倒塌风险类别。本发明明确其失效模式和倒塌机理，确定各类构件在抗连续倒塌过程中的重要性系数为连续倒塌风险的决定性因素，以较小地计算代价尽可能降低其连续倒塌风险。
Cable dome structure progressive collapse risk judgment method and system
一种索穹顶结构连续倒塌风险判断方法及系统
CHEN LIANMENG (author) / LI ZEBIN (author) / LIU YIJIE (author) / ZENG YIHONG (author)
2021-12-28
Patent
Electronic Resource
Chinese
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