Abstract Bolt-column (BC) joint is an innovative fabricated semi-rigid joint with strong bending stiffness that can meet the need of rapid construction of latticed shell structure. To investigate the dynamic behavior of SLR shells with BC joints subjected to harmonic load and earthquake load, finite element (FE) modeling of SLR shells with BC joint was built taking geometric and material nonlinearity into account, and the simulation method was validated by comparing with the test result on a cylindrical reticulated shell. Based on this model, effect of joint stiffness on the dynamic response was examined and failure modes of SLR shells jointed with BC joint subjected to harmonic load and earthquake load were studied. Two failure modes, dynamic strength failure which results from the extensive plastic deformation and dynamic instability failure which is induced by the geometric nonlinearity of the shell, were defined. Subsequently, the criteria on differentiating the two failure modes were derived based on response characteristics indicators. Furthermore, investigation on damaged factor of SLR shells jointed with BC joint was conducted, and according to numerous numerical examples, the damaged index of SLR shells with BC joint was derived, which can be utilized to conduct fragility analysis.

中文翻译：

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带螺栓柱（BC）接头的单层网状（SLR）壳的动态破坏机制

摘要 螺栓柱（Bolt-Column，BC）节点是一种创新的装配式半刚性节点，具有较强的抗弯刚度，可满足网格壳结构快速施工的需要。为研究具有 BC 接头的 SLR 壳在简谐载荷和地震荷载作用下的动力学行为，考虑几何和材料非线性，建立了具有 BC 接头的 SLR 壳的有限元 (FE) 建模，并通过与在圆柱形网状壳上的测试结果。基于该模型，研究了节点刚度对动力响应的影响，研究了与BC节点连接的SLR壳在谐波载荷和地震载荷作用下的破坏模式。两种故障模式，定义了由广泛的塑性变形引起的动态强度失效和由壳的几何非线性引起的动态失稳失效。随后，基于响应特性指标推导出区分两种故障模式的标准。进一步研究了BC接缝SLR壳的损伤系数，并根据大量算例推导出BC接缝SLR壳的损伤指数，可用于脆性分析。