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Resiliency and post‐earthquake realignment
The Structural Design of Tall and Special Buildings ( IF 2.4 ) Pub Date : 2021-01-18 , DOI: 10.1002/tal.1836
Mark Grigorian 1
Affiliation  

Although the mechanics of free‐standing rocking cores have been amply investigated and that numerous replaceable energy dissipating devices with recentring capabilities have been proposed, the literature on complete sustainable earthquake resistant structures has not been fully developed. Seismic sustainability (SS) can be achieved if and only if the structure is capable of collapse prevention (CP) and/or post‐earthquake realignment and repairs (PERR). Rigid rocking core moment frame (RRC‐MF) combinations are special earthquake resistant structures that are capable of damage control, elimination of residual effects, CP, and PERR. High strength cables are commonly utilized as rocking core stabilizers, gap opening and closing regulators as well as energy absorbing devices. RRCs are articulated shear walls developed to reduce relative drift and seismic demand on earthquake‐resistant structures (ERSs), prevent plastic collapse, and help realign the system as needed. After discussing sustainable seismic design (SSD), the mechanics of hybrid rocking–stepping cores and self‐centering steel beams are briefly examined. The following innovations are introduced as part of the current article: (1) introduction to global stiffness reduction (GSR), (2) introduction to restoring force adjustment (RFA), (3) the hybrid rigid rocking–stepping core (RRC), (4) tendon‐enhanced replaceable energy dissipating moment connections (REDMCs), and (5) the heat‐generated realignment system.

中文翻译:

弹性和震后调整

尽管已经对独立式摇摆岩心的力学进行了充分的研究,并且已经提出了许多具有更新功能的可替换耗能设备,但有关完整的可持续抗震结构的文献尚未得到充分发展。当且仅当该结构能够防倒塌(CP)和/或地震后重整和修复(PERR)时,才能实现地震的可持续性(SS)。刚性摇芯矩框架(RRC‐MF)组合是特殊的抗震结构,能够控制破坏,消除残余影响,CP和PERR。高强度电缆通常用作摇芯稳定器,间隙打开和关闭调节器以及能量吸收装置。RRC是铰接式剪力墙,旨在减少相对位移和抗震结构(ERS)的地震需求,防止塑料塌陷,并根据需要帮助调整系统。在讨论了可持续地震设计(SSD)之后,简要研究了混合摇摆步进式岩心和自定心钢梁的力学。作为本文章的一部分,引入了以下创新:(1)引入整体刚度降低(GSR),(2)引入恢复力调整(RFA),(3)混合刚性摇摆-步进式堆芯(RRC), (4)加强筋的可替换耗能力矩连接(REDMC),以及(5)热生成的重新对准系统。在讨论了可持续地震设计(SSD)之后,简要研究了混合摇摆步进式岩心和自定心钢梁的力学。作为本文章的一部分,引入了以下创新:(1)引入整体刚度降低(GSR),(2)引入恢复力调整(RFA),(3)混合刚性摇摆-步进式堆芯(RRC), (4)加强筋的可替换耗能力矩连接(REDMC),以及(5)热生成的重新对准系统。在讨论了可持续地震设计(SSD)之后,简要研究了混合摇摆步进式岩心和自定心钢梁的力学。作为本文章的一部分,引入了以下创新:(1)引入整体刚度降低(GSR),(2)引入恢复力调整(RFA),(3)混合刚性摇摆-步进式堆芯(RRC), (4)加强筋的可替换耗能力矩连接(REDMC),以及(5)热生成的重新对准系统。
更新日期:2021-03-08
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