(1 西安工程大学城市规划与市政工程学院， 西安 710048； 2 陕西省建筑科学研究院有限公司，西安 710082； 3 西安建筑科技大学土木工程学院， 西安 710055)

摘要: 为提高古建筑砌体结构抗震性能，设计制作了 3 组古建筑砌体试块和 3 片古建筑砌体墙试件，分别利用环氧树脂和甲基丙烯酸甲酯进行性能增强。 通过试块的材料力学性能试验研究其力学性能，提出了性能增强古建筑砌体的本构关系；通过墙体的拟静力试验研究了性能增强古建筑砌体墙的破坏形态、滞回性能、延性、耗能能力等。结果表明:高分子材料能够有效约束古建筑砌体结构墙体裂缝的开展，提高墙体的承载力和变形能力，其中采用环氧树脂进行性能增强后，墙体承载力和延性相对于未增强墙体分别提高了 30%和 31%，采用甲基丙烯酸甲酯进行性能增强后，墙体承载力和延性分别提高了 18%和 42%；性能增强后墙体的滞回环面积和等效黏滞阻尼系数均大于未增强墙体，耗能能力得到增强；最后根据拟合试验曲线建立性能增强古建筑砌体的本构模型，并进行了有限元分析，有限元计算结果与试验结果吻合较好，可为古建筑砌体结构抗震保护提供参考。

关键词: 古建筑； 砌体墙； 抗震性能； 环氧树脂； 甲基丙烯酸甲酯； 高分子材料

中图分类号:TU362 文献标志码:A 文章编号:1002￣848X(2022)02￣0140￣10

DOI:10. 19701 / j.jzjg.20200183

Seismic performance test and finite element analysis of performance￣enhanced ancient building masonry walls

ZHAO Hao1， LIU Wei2， YANG Tao1， WANG Sheliang3， LI Binbin3

(1 School of Urban Planning and Municipal Engineering， Xi’an Polytechnic University， Xi’an 710048，China；2 Shaanxi Architecture Science Research Institute Co.， Ltd.， Xi’an 710082， China； 3 School of Civil Engineering，Xi’an University of Architecture and Technology， Xi’an 710055， China)

Abstract: In order to improve the seismic performance of ancient building masonry structure， three groups of ancientbuilding masonry test pieces and three ancient building masonry wall test pieces were designed and manufactured， whichwere strengthened by epoxy resin and methyl methacrylate respectively. The mechanical properties of the test block werestudied through the material mechanical properties test， and the constitutive relationship of the performance￣enhancedancient building masonry was proposed. Through the pseudo￣static test of the wall， the failure form， hysteresis performance，ductility and energy dissipation capacity of the performance￣enhanced ancient building masonry wall were studied. Theresults show that polymer materials can effectively restrict the development of cracks in the wall of ancient building masonrystructure and improve the bearing capacity and deformation capacity of the wall. Compared with the unreinforced wall， thebearing capacity and ductility of the wall with epoxy resin are increased by 30% and 31% respectively， and the bearingcapacity and ductility of the wall with methyl methacrylate are increased by 18% and 42% respectively. The hysteretic looparea and equivalent viscous damping coefficient of the strengthened wall are greater than those of the unreinforced wall， andthe energy dissipation capacity is enhanced. Finally， the corresponding constitutive model is established according to thefitting test curve， and the finite element analysis of the performance enhanced ancient building wall is carried out. The finiteelement calculation results are in good agreement with the test results， which can provide a reference for the seismicprotection of ancient building masonry structure.

Keywords: ancient building； masonry wall； seismic performance； epoxy resin； methyl methacrylate； polymer material

∗国家自然科学基金(51678480)，西安建筑科技大学结构工程与抗震教育部重点实验室开放基金(KL￣SEER￣ME￣202003)。

第一作者:赵浩，硕士，工程师，主要从事建筑结构检测鉴定、地基事故处理以及地质灾害治理方向的研究工作，Email:harry57254779@ 163.com。

[引用本文] 赵浩，刘伟，杨涛，等. 性能增强古建筑砌体墙抗震性能试验及有限元分析[ J]. 建筑结构，2022，52(2 ): 140￣149. ZHAO Hao， LIU Wei， YANG Tao， et al. Seismic performance test and finite element analysis ofperformance￣enhanced ancient building masonry walls[J]. Building Structure，2022，52(2):140￣149.