ABSTRACT

This paper investigates the potentials of inter-story isolation systems (IIS) for retrofitting irregular masonry buildings by means of an isolated vertical addition realised on the roof of the existing structure. By assuming a case study, a wide parametric analysis is firstly carried out on lumped-masses model for identifying the dynamic properties of the isolated superstructure that minimizes the global seismic response. Hence, a 3D FE model is adopted for the detailed design and analysis of the IIS structure, with different solutions, in order to regularize the global seismic response of the IIS complex. Finally, some general design criteria are suggested.

摘要

本文研究了层间隔离系统 (IIS) 通过在现有结构的屋顶上实现的隔离垂直添加来改造不规则砌体建筑的潜力。通过假设一个案例研究，首先对集中质量模型进行了广泛的参数分析，以识别最小化全局地震响应的孤立上层建筑的动态特性。因此，采用 3D 有限元模型对 IIS 结构进行详细设计和分析，并采用不同的解决方案，以规范 IIS 综合体的全局地震响应。最后，提出了一些通用的设计标准。