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首页> 外文期刊>Soil Dynamics and Earthquake Engineering >Seismic performance of cylindrical latticed-intersected-three-dimensional-beam-system reticulated mega-structure with single-layer latticed-intersected-cylindrical-shell substructures
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Seismic performance of cylindrical latticed-intersected-three-dimensional-beam-system reticulated mega-structure with single-layer latticed-intersected-cylindrical-shell substructures

机译：圆柱格架相交的三维梁系统网状巨型结构与单层格架相交的圆柱壳子结构的抗震性能

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摘要

This paper is focused on the research of seismic performance of cylindrical latticed-intersected-three-dimensional-beam-system (LITDBS) reticulated mega-structure with single-layer latticed-intersected-cylindrical-shell (L1CS) substructures by time history method accounting for geometrical nonlinearity. The distribution laws of the dynamic internal forces and those of the ratios of the dynamic to static internal forces of members in this innovative structure are first studied. The behaviors of the structure under different multi-component seismic actions are analyzed, and the reasonable components of the seismic action that should be considered in design are thus obtained. Then taking the maximum dynamic internal force of the structure as the index, a series of parametric analyses are carried out, and the suitable values of several key form parameters are recommended. Additionally, the results by the response spectrum method with those by the time history method are compared, which indicates that the former is not on the safe side. Therefore, the mode-superposition response spectrum method can only be used to do preliminary seismic design of this kind of structure, and the results must be checked by the time history method at the end.
机译：本文通过时程法计算，研究了具有单层格子相交的圆柱壳（L1CS）的圆柱格子相交三维梁系统（LITDBS）网状巨型结构的抗震性能。用于几何非线性。首先研究了这种创新结构中动态内力的分布规律以及构件的动态内力与静态内力之比。分析了结构在不同多分量地震作用下的行为，从而获得了设计中应考虑的合理地震分量。然后以结构的最大动态内力为指标，进行了一系列的参数分析，并推荐了几个关键形状参数的合适值。此外，将响应谱法的结果与时间历史法的结果进行了比较，这表明前者并不安全。因此，模-叠响应谱法只能用于这种结构的初步抗震设计，其结果必须通过时程法进行验证。

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