Page 285 - 《振动工程学报》2026年第3期

第 39 卷第 3 期 振 动 工 程 学 报 Vol. 39 No. 3
2026 年 3 月 Journal of Vibration Engineering Mar. 2026

塑性铰区采用混杂纤维 ECC 材料一字形截面

短肢剪力墙抗震性能研究

张品乐 1，2 ， 郭 旭 1，2 ， 查叶铭 1，2

（1. 昆明理工大学建筑工程学院，云南 昆明 650500； 2. 云南省抗震工程技术研究中心，云南 昆明 650500）

摘要: 为了提高短肢剪力墙的抗震性能，设计了 4 片 ECC 短肢剪力墙和 2 片高强钢筋高强混凝土短肢剪力墙（RC 短肢剪力
墙），并进行拟静力试验。通过改变短肢剪力墙的轴压比以及约束箍筋数量，研究其破坏机理、承载能力、耗能能力与变形能
力。结果表明：6 片短肢剪力墙的破坏模式均是以弯曲破坏为主，与 RC 短肢剪力墙相比，ECC 短肢剪力墙弹性阶段变长，屈服
后承载力降低缓慢，耗能能力与变形能力显著提升，在高设计轴压比达到 0.75 时，其极限位移角依然可以达到 1/38，远远超过
《建筑抗震设计规范》限值；RC 短肢剪力墙底部混凝土严重压碎、大量剥落，而 ECC 短肢剪力墙底部 ECC 轻微剥落，塑性铰区
损伤明显降低，可以显著减少强震后的修复费用。随着轴压比的增大，承载力明显增大，增加约束箍筋数量，其变形能力得到
明显的改善。对 ECC 短肢剪力墙进行非线性分析表明：当 ECC 区高度大于 0.3H（墙体高度）时，ECC 分布高度的提升对承载
能力和变形能力的影响较小，建议 ECC 区高度取为短肢剪力墙高度的 0.3 倍。

关键词: ECC； 短肢剪力墙； 抗震性能； 轴压比； 配箍特征值； 参数分析
中图分类号: TU375 文献标志码: A DOI：10.16385/j.cnki.issn.1004-4523.202407005

Performance study of short-leg shear walls with rectangular section

using hybrid fiber ECC material in potential plastic region

1，2
1，2
ZHANG Pinle ， GUO Xu ， ZHA Yeming 1，2
（1.Faculty of Civil Engineering and Mechanics， Kunming University of Science and Technology， Kunming 650500， China；
2.Earthquake Engineering Researching Center of Yunnan， Kunming 650500， China）

Abstract: To improve the seismic performance of short-leg shear walls， four ECC short-leg shear walls and two high-strength
reinforced high-strength concrete short-leg shear walls （RC short-leg shear walls） were designed， and simulated static tests were
carried out. The failure mechanism， load capacity， energy dissipation capacity， and deformation capacity of the short-leg shear wall
are studied by changing the axial compression ratio and the number of confining stirrups. The results show that the failure mode of
the six short-leg shear walls is mainly bending failure. Compared with RC short-leg shear walls， the elastic stage of ECC short-leg
shear walls becomes longer， the bearing capacity decreases slowly after yielding， and the energy dissipation capacity and
deformation capacity increase significantly. When the design axial compression ratio reaches 0.75， the ultimate displacement Angle
can still reach 1/38. Far exceeding the limits of the Code for Seismic Design of Buildings； The concrete at the bottom of the RC
short-leg shear wall is seriously crushed and a lot of spalling， while the ECC short-leg shear wall is slightly spalling， and the
damage in the plastic hinge area is significantly reduced， which can significantly reduce the repair cost after a strong earthquake.
With the increase of axial compression ratio， the bearing capacity is obviously increased， and the deformation capacity is obviously
improved with the increase of the number of restraint stirrups. The nonlinear analysis of ECC short-leg shear wall shows that when
the height of the ECC area is greater than 0.3H （wall height）， the increase of ECC distribution height has little influence on the
bearing capacity and deformation capacity. It is suggested that the height of the ECC area should be 0.3 times the height of the
short-leg shear wall.

Keywords: ECC；short-leg shear wall；seismic performance；axial compression ratio；stirrup characteristic value；parameter analysis

收稿日期: 2024-07-02； 修订日期: 2024-09-01
基金项目: 国家自然科学基金资助项目（52168069，51568028）