ABSTRACT

This paper presents a performance-based seismic design method of RC moment resisting frame with friction damped self-centering tension braces (FSTB-Frame). The structural configuration and theoretical model of FSTB is introduced, and the numerical model of FSTB is established and validated through cyclic loading tests of a FSTB specimen. Based on the equivalent linear method, the seismic design procedure is developed and verified through 3-, 6-, 9-, and 12-story structures with different design performance objectives. Numerical models of FSTB-frames are established and used to verify whether the design performance targets are achieved through nonlinear dynamic analyses using the design-basis earthquake (DBE) ground motions. The research results show FSTB-frames can achieve the intended performance levels in terms of story drift, residual story drift and base shear, and the maximum and residual story drift of RC frames can be significantly decreased after equipping FSTBs.

摘要

本文提出了一种基于性能的带摩擦阻尼自定心张拉支架（FSTB-Frame）的RC抗弯框架抗震设计方法。介绍了FSTB的结构配置和理论模型，并通过FSTB试件的循环加载试验建立了FSTB的数值模型并进行了验证。基于等效线性方法，通过具有不同设计性能目标的 3 层、6 层、9 层和 12 层结构开发和验证了抗震设计程序。建立了 FSTB 框架的数值模型，并使用基于设计的地震 (DBE) 地面运动通过非线性动力分析来验证设计性能目标是否实现。研究结果表明，FSTB 帧在故事漂移方面可以达到预期的性能水平，