Page 238 - 《振动工程学报》2025年第8期
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第 38 卷第 8 期                       振  动  工  程  学  报                                  Vol. 38 No. 8
               2025 年 8 月                      Journal of Vibration Engineering                       Aug. 2025



                     锈蚀 L 形钢筋混凝土剪力墙抗震性能试验研究



                                阮  升     1,2 ,郑山锁    1,2 ,张  欣    1,2 ,李浩冲    1,2 ,罗雨欣    1,2

                                        (1. 西安建筑科技大学土木工程学院, 陕西 西安 710055;
                                 2. 西安建筑科技大学结构工程与抗震教育部重点实验室, 陕西 西安 710055)


              摘要: 为研究不同钢筋锈蚀程度与轴压比对锈蚀 L 形钢筋混凝土(RC)剪力墙抗震性能的影响规律,采用干湿循环‑外加电流
              加速锈蚀方法,对 5 榀剪跨比为 2.5 的 L 形 RC 剪力墙试件进行加速锈蚀试验,随后进行拟静力加载。试验结果表明:随着锈蚀
              程度的增大,试件承载力逐渐降低,正向(翼缘受拉)承载力降幅大于负向(翼缘受压),试件变形能力、耗能能力发生不同程度
              的劣化,刚度退化不断加剧,正向峰值点剪切变形占比增大;当锈蚀程度相同时,随着轴压比的增大,锈蚀试件正向破坏向小偏
              心受压破坏发展,正向承载力先增大后减小,负向承载力逐渐增大,且负向承载力增幅更大,试件变形能力逐渐减小,正向变形
              能力减小幅度更大,试件耗能能力、剪切变形及其占比均逐渐减小。
              关键词: 钢筋混凝土剪力墙; 拟静力试验; 抗震性能; 钢筋锈蚀; 干湿循环
                                    +
              中图分类号: TU375; TU317 .1    文献标志码: A    DOI:10.16385/j.cnki.issn.1004-4523.202307064

                         Experimental study on seismic behavior of corroded L-shaped

                                            reinforced concrete shear walls


                                                                      1,2
                                                                                    1,2
                                     1,2
                                                        1,2
                         RUAN Sheng , ZHENG Shansuo , ZHANG Xin , LI Haochong , LUO Yuxin         1,2
                      (1.College of Civil Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China;
                              2.Key Lab of Structural Engineering and Earthquake Resistance, Ministry of Education,
                                   Xi’an University of Architecture and Technology, Xi’an 710055, China)
              Abstract: To study the influence of different degrees of steel corrosion and axial compression ratio on the seismic performance of
              corroded L-shaped reinforced concrete (RC) shear walls, the test specimens of 5 L-shaped RC shear walls with a shear-to-span ra‑
              tio of 2.5 were subjected to accelerated corrosion by using dry-wet cycle and external current corrosion method, then the specimens
              were subjected to a pseudo-static test. The test results show that with the increase of corrosion degree, the bearing capacity of the
              specimens gradually decreased, and the decrease rate of positive (flange tension) bearing capacity was higher than that of the nega‑
              tive (flange compression). The specimen deformation and energy dissipation capacity deteriorated to varying degrees, the stiffness
              degradation aggravated, and the percentage of shear deformation in the positive peak point increased. When the degree of corrosion
              was equal, with the increase of the axial compression ratio, the positive failure mode of the corroded specimen developed into small
              eccentric failure progressively. In the meantime, the positive bearing capacity of the specimens first increased and then decreased,
              while the negative bearing capacity of the test specimens gradually increased, and the increase rate of the negative bearing capacity
              was greater than that of the positive; the deformation capacity of the specimens constantly decreased, and the decrease rate of the
              positive deformation capacity was greater than that of the negative; the energy dissipation capacity, shear deformation and percent‑
              age of shear deformation of the specimens all decreased continuously.
              Keywords: reinforced concrete shear walls; pseudo-static test; seismic behavior; reinforcement corrosion; dry-wet cycle



                  钢筋混凝土(RC)结构在服役过程中受环境侵                         久性损伤之一       [1] 。钢筋锈蚀会造成钢筋力学性能
              蚀,会产生耐久性损伤,并随结构服役年限增长而                            削弱、钢筋与混凝土粘结性能退化、混凝土保护层
              逐 渐 加 重 ,其 中 ,钢 筋 锈 蚀 是 RC 结 构 最 主 要 的 耐          剥落等,最终导致 RC 结构抗震性能劣化                  [2] 。为探

                  收稿日期: 2023-07-24; 修订日期: 2023-12-28
                  基金项目: 国家自然科学基金资助项目(52278530);国家重点研发计划项目(2019YFC1509302);陕西省重点研发计划
                          项目(2021ZDLSF06-10)
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