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Seismic response of self‐centering precast concrete frames with hysteretic dampers

机译：滞回阻尼器自定向预制混凝土框架的地震响应

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摘要

With the rapid development of cities and the invasion of major natural disasters such as earthquakes, the resilience city as a new design concept has been paid more and more attention. As an important branch of self-centering seismic resisting system, self-centering concrete frame system has been studied by many scholars. These studies prove that self-centering concrete frame structure has excellent self-centering ability but poor energy dissipation capacity. Adhering to the working principle of self-centering structure and considering the development concepts of building industrialization and modularization, this paper proposed a kind of self-centering precast concrete frame with hysteretic damper (SCPCHD). In order to verify its energy dissipation capacity and seismic performance, elaborate finite element models were established and elastoplastic dynamic time history analyses were carried out. The results showed that the SCPCHD frame has a similar interstory displacement response to the reinforced concrete (RC) frame and the energy dissipation performance of its joint is obviously superior to the RC frame under rare earthquake because the SCPCHD frame has low damage characteristics and excellent damping device. In summary, this paper proves the feasibility and superiority of the SCPCHD frame, providing reliable support for further research.
机译：随着城市的快速发展和地震等重大自然灾害的入侵，弹性城市作为新的设计理念的重新关注。作为自定心地震抗蚀系统的重要分支，许多学者研究了自定心混凝土框架系统。这些研究证明，自定心混凝土框架结构具有优异的自定心能力，但能量耗散能力差。本文提出了一种与建筑工业化和模块化的发展概念的工作原理，提出了一种带滞后阻尼器（SCPCHD）的自定心预制混凝土框架。为了验证其能量耗散能力和地震性能，建立了精细的有限元模型，并进行弹塑性动态历史分析。结果表明，SCPCHD框架对钢筋混凝土（RC）框架具有类似的壁垒响应，其关节的能量耗散性能明显优于罕见地震下的RC架，因为SCPCHD框架具有低损坏特性和优异的阻尼设备。总之，本文证明了SCPCHD框架的可行性和优越性，为进一步研究提供了可靠的支持。

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