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蒙特利尔运动场屋顶是由预张力膜与异性索组成的系统,该结构是非对称结构,因此导致了可变静态荷载下的非均匀结构响应。考虑几何非线性,建立蒙特利尔运动场屋顶三维有限元模型。从分析结构的自由振动开始,然后考虑风载和雪载的静态及动态影响。模拟风载作为产生变形的荷载。这些分析能够描述以及更好地理解引起屋顶膜破坏的结构机制,尤其是发生在常见风速情况下的初始破坏。
The Montreal Playground roof is a system of pre-tensioned membranes and heterosexual cables that are asymmetric and therefore result in a non-uniform structural response at variable static loads. Considering the geometric nonlinearity, a three-dimensional finite element model of roof of Montreal stadium is established. Starting from the analysis of the free vibration of the structure, the static and dynamic effects of wind and snow load are taken into account. Simulated wind load as a load that produces deformation. These analyzes can describe and better understand the structural mechanisms that cause damage to the roofing membrane, especially the initial damage that occurs at common wind speeds.