Research on the impact resistance performance of ECC-BFRP reinforced composite shear wall for civil defense

doi:10.19936/j.cnki.2096-8000.20251128.014

Abstract

Abstract: In order to investigate the impact resistance of shear wall reinforced with engineered cementitious composite (ECC) and basalt fiber reinforced polymer (BFRP) reinforcement, an impact test was carried out on the reinforced human defense wall. The impact test was carried out on the reinforced human defense wall, and the finite element software ABAQUS was used to carry out numerical simulation based on the existing test at the same time. The accuracy of the numerical model was verified by comparing it with experimental results, and the influence of load levels and ECC thickness on the wall’s impact resistance performance was further analyzed. The results show that both the overall flexural stiffness and bearing capacity are significantly improved with the increase in ECC thickness. The concrete cracking is effectively controlled, and the rate of stiffness decline is reduced too. It can be concluded that the reinforcement method using ECC-BFRP can greatly enhance the impact resistance of the air defense walls, which will provide technical support for the structure upgrade of civil air defense projects.

Key words: civil air defense shear wall, impact resistance, impact test, FEA, ECC, BFRP bars

CLC Number:

TB332

WANG Chong, LIANG Haizhi, CHEN Wenlong, XIE Jingru, JIN Zuquan, YE Haibin. Research on the impact resistance performance of ECC-BFRP reinforced composite shear wall for civil defense[J]. COMPOSITES SCIENCE AND ENGINEERING, 2025, 0(11): 110-121.

References

[1] 康宁. 早期人防工程的治理技术[J]. 地下空间, 1991(1): 30-32, 86.
[2] 袁治炳. 人防工程中的灾害与整治初探[J]. 地下空间, 1989(4): 27-30.
[3] 孙海朋, 卓卫东. 早期人防工程检测评估方法研究[J]. 地下空间与工程学报, 2017, 13(增刊1): 268-273.
[4] 李群. 人防工程建设与城市可持续发展[D]. 天津: 天津大学, 2004.
[5] LI V C. ECC-tailored composites through micromechanical modeling[J]. Fiber Reinforced Concrete: Present and the Future, 1998(2): 64-97.
[6] 潘毅, 任宇, 郭瑞, 等. FRP网格-ECC复合层加固混凝土界面定量化处理及黏结性能试验研究[J]. 建筑结构学报, 2024, 45(5): 207-217.
[7] CAI J M, PAN J L, ZHOU X M. Flexural behavior of basalt FRP reinforced ECC and concrete beams[J]. Construction and Building Materials, 2017, 142: 423-430.
[8] 周甲佳, 姚少科, 景川, 等. FRP筋-ECC梁受弯性能[J]. 建筑科学与工程学报, 2020, 37(6): 46-54.
[9] 袁方, 胡忍. 复合筋增强ECC及ECC-混凝土组合梁受弯性能试验研究[J]. 混凝土, 2022(4): 66-71, 77.
[10] 邓朗妮, 杨洲, 钟锰军, 等. FRP网格增强ECC加固钢筋混凝土梁裂缝研究[J]. 建筑结构, 2025, 55(11): 134-140.
[11] 惠迎新, 王文炜, 朱忠锋. FRP-ECC复合约束混凝土圆柱反复受压力学性能[J]. 复合材料学报, 2022, 39(11): 5586-5598.
[12] 何佶轩. FRP增强ECC梁及ECC/混凝土组合梁抗剪性能研究[D]. 南京: 东南大学, 2016.
[13] 廖桥, 苏元瑞, 余江滔, 等. 海水海砂ECC梁的抗剪性能试验及有限元模拟[J]. 复合材料学报, 2022, 39(8): 3929-3939.
[14] ZHOU J K, SHEN W, WANG S F. Experimental study on torsional behavior of FRC and ECC beams reinforced with GFRP bars[J]. Construction and Building Materials, 2017, 152: 74-81.
[15] 赵德博, 黄峰, 陈湘生, 等. ECC+BFRP格栅复合加固钢筋混凝土梁弯曲抗冲击性能试验研究[J]. 土木工程学报, 2025, 58(4): 24-36.
[16] 江世永, 陶帅, 李雪阳. FRP筋高韧性纤维混凝土复合结构抗震性能研究进展[J]. 玻璃钢/复合材料, 2017(7): 92-99.
[17] FISCHER G, LI V C. Deformation behavior of fiber-reinforced polymer reinforced engineered cementitious composite (ECC) flexural members under reversed cyclic loading conditions[J]. Structural Journal, 2003, 100(1): 25-35.
[18] YUAN F, PAN J L, DONG L T, et al. Mechanical behaviors of steel reinforced ECC or ECC/concrete composite beams under reversed cyclic loading[J]. Journal of Materials in Civil Engineering, 2014, 26(8): 04014047.
[19] 曾宇, 胡良明. ABAQUS混凝土塑性损伤本构模型参数计算转换及校验[J]. 水电能源科学, 2019, 37(6): 106-109.
[20] 蒋祖发. FRP筋ECC梁受弯性能研究[D]. 郑州: 郑州大学, 2021.