论文部分内容阅读
为分析“马蹄莲”形高层组合结构的动力特性及地震响应,以武汉未来科技城为例,建立了“马蹄莲”形主塔楼高层组合结构的三维有限元模型,分析了结构的动力特性,得到结构的固有频率及自振周期,给出结构前四阶振型,并采用时程分析法研究了塔楼整体的三维地震响应及组合结构的薄弱部位。结果表明,塔架结构为组合结构整体的薄弱部位;x方向为组合结构体系抗震弱方向;人工波作用于结构抗震弱方向的楼层间最大侧移与层高之比(Δu/H)小于规范限值,为复杂组合结构的设计和施工提供了可靠保证。
In order to analyze the dynamic characteristics and seismic response of the “Calla Lily” high-rise composite structure, a three-dimensional finite element model of the high-rise composite structure of the “Calla Lily” main tower was established by taking Wuhan Future Science and Technology City as an example. The natural frequency and natural period of the structure are obtained, and the first four modes of the structure are given. The three-dimensional seismic response of the whole tower and the weak parts of the composite structure are studied by time-history analysis. The results show that the tower structure is the weakest part of the composite structure. The x direction is the weak earthquake-resistant direction of the composite structure. The ratio of the maximum lateral displacement of floor to the layer height (Δu / H) Limits provide a reliable guarantee for the design and construction of complex composite structures.