Seismic performance of multiple hardening wall: macro-element modelling, parametric analysis, and design

IF 4.1 2区工程技术 Q2 ENGINEERING, GEOLOGICAL

Bulletin of Earthquake Engineering Pub Date : 2025-06-02 DOI:10.1007/s10518-025-02184-z

Hongbo Jiang, Haotian Liu, Tong Guo, Guangzhong Fan, Jian Sun, Hongxing Qiu, Wenjie Ge, Yanqing Xu, Kongyang Chen, Chunchao Chen

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引用次数: 0

Abstract

Steel-concrete composite bolted connections (SCCBCs) are frequently used for the horizontal connections of precast concrete (PC) walls, which makes the walls resilient and easy to replace after earthquakes. In a newly developed PC wall named as the multiple hardening PC shear wall (MHPCW), the SCCBCs are extended to vertical connections and are characterized by limited travel behavior, referred to as friction bearing devices (FBDs). The FBD plays a crucial role in the multiple hardening behavior by leveraging the longitudinal elongation, and friction and limited travel are identified as key factors in design. Although previous experimental results have demonstrated the promising seismic performance of the MHPCW, a deeper understanding of the multiple hardening mechanism is still needed. This study introduces a macro element modeling approach for the MHPCW. The validation of various failure modes and both lateral and longitudinal responses is conducted through experimental results. A parametric analysis of the MHPCW is conducted to explore the influence of key parameters, including the limited travel of the FBD, FBD friction, stiffness of end column, and axial load ratio. Furthermore, design recommendations for the FBD are proposed and validated by both experimental and numerical results, with failure modes fully considered, thus advancing the understanding of MHPCW.

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多层硬化墙体的抗震性能：宏观建模、参数化分析与设计

钢-混凝土组合螺栓连接（SCCBCs）常用于预制混凝土（PC）墙体的水平连接，使墙体具有弹性，地震后易于更换。在一种名为多重硬化PC剪力墙（MHPCW）的新开发的PC墙中，SCCBCs扩展到垂直连接，并具有有限行程行为，称为摩擦承载装置（fbd）。FBD通过利用纵向伸长率在多重硬化行为中起着至关重要的作用，摩擦和有限行程是设计中的关键因素。尽管之前的实验结果已经证明了MHPCW具有良好的抗震性能，但仍需要对多重硬化机制有更深入的了解。本文介绍了一种针对MHPCW的宏元素建模方法。通过试验结果验证了各种破坏模式以及横向和纵向响应。对MHPCW进行了参数化分析，探讨了FBD极限行程、FBD摩擦、端柱刚度、轴向载荷比等关键参数的影响。此外，在充分考虑失效模式的情况下，提出了FBD的设计建议，并通过实验和数值结果进行了验证，从而促进了对MHPCW的理解。

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来源期刊

Bulletin of Earthquake Engineering 工程技术-地球科学综合

CiteScore

8.90

自引率

19.60%

发文量

263

审稿时长

7.5 months

期刊介绍： Bulletin of Earthquake Engineering presents original, peer-reviewed papers on research related to the broad spectrum of earthquake engineering. The journal offers a forum for presentation and discussion of such matters as European damaging earthquakes, new developments in earthquake regulations, and national policies applied after major seismic events, including strengthening of existing buildings. Coverage includes seismic hazard studies and methods for mitigation of risk; earthquake source mechanism and strong motion characterization and their use for engineering applications; geological and geotechnical site conditions under earthquake excitations; cyclic behavior of soils; analysis and design of earth structures and foundations under seismic conditions; zonation and microzonation methodologies; earthquake scenarios and vulnerability assessments; earthquake codes and improvements, and much more. This is the Official Publication of the European Association for Earthquake Engineering.