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点式玻璃幕墙单层索网柔性支承体系将晶莹通透的建筑玻璃和简洁细小的单层索网有机结合,成为建筑与结构设计融合经典。而当前关于单层索网点式玻璃幕墙抗震性能研究甚少,尤其是主体结构对其地震响应的影响。本文针对不同的主体结构和单层索网的耦合模型,对单独索网地震响应研究进行整体分析。分析结果表明:耦合模型的自振特性具有一定的独立局部自振特性;主体结构对单层索网的地震二次输入影响受主体结构和单层索网自振特性的影响,主要表现为二次输入频谱特性和输入幅值的不同;主体结构对单层索网的地震响应较大,可不同程度的放大或者减弱地震作用;主体结构对索网高阶振型具有激发效应。因而对现有规范玻璃幕墙设计不考虑主体结构的做法提出了挑战,为进一步研究主体结构对幕墙的影响提供参考。
Point-type glass curtain wall single-layer flexible support network system will be crystal-clear glass and simple small single-layer network of organic combination of architectural and structural design into a classic fusion. However, little is known about the seismic performance of single glazing point glass curtain wall, especially the influence of main structure on its seismic response. In this paper, based on the coupled models of different main structures and single-layer cable networks, the overall study on the seismic responses of single cable networks is analyzed. The analysis results show that the self-vibration characteristics of the coupling model have some independent local self-vibration characteristics. The influence of the main structure on the second-order input of the single layer cable network is affected by the vibration characteristics of the main structure and the single-layer cable network. The input frequency spectrum characteristics and the input amplitude difference; the main structure of the single layer cable network seismic response larger, to varying degrees, amplify or weaken the earthquake effect; the main structure of the cable network with high-order mode excitation effect. Therefore, the existing standard glass curtain wall design does not consider the main structure of the practice posed a challenge for further study of the main structure of the curtain wall to provide a reference.