性能增强古建筑砌体墙抗震性能试验及有限元分析
引用文献：
赵浩 刘伟 杨涛 王社良 李彬彬. 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，2022，48（02）：140-149.
ZHAO Hao LIU Wei YANG Tao WANG Sheliang LI Binbin. Seismic performance test and finite element analysis of performance-enhanced ancient building masonry walls[J]. Building Structure，2022,48（02）：140-149.
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
基金：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)。
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参考文献[1] 朱才辉，刘钦佩，周远强.古建筑砖-土结构力学性能及裂缝成因分析[J].建筑结构学报，2019,40(9):175-186.
[2] 卢俊龙.实心砖石古塔动力特性与结构损伤分析[J].力学与实践，2016,38(5):560-566.
[3] 杜闯，陈海霞，边智慧，等.基于隔震技术的古建筑抗震保护研究[J].建筑结构，2017,47(17):71-75.
[4] 王社良，刘伟，杨涛.西安小雁塔结构振动控制试验研究[J].振动与冲击，2017,36(16):113-121.
[5] 周乾，杨娜，闫维明.CFRP布墩接加固木柱轴压试验研究[J].建筑结构学报，2016,37(S1):314-320.
[6] 兰明章，聂松，王剑锋，等.古建筑修复用石灰基砂浆的研究进展[J].材料导报，2019,33(9):1512-1516.
[7] 李爱群，周坤朋，王崇臣，等.中国古建筑木结构修复加固技术分析与展望[J].东南大学学报(自然科学版),2019,49(1):195-206.
[8] ZHOU K P,LI A Q,XIE L L,et al.Mechanism and effect of alkoxysilanes on the restoration of decayed wood used in historic buildings[J].Journal of Cultural Heritage,2020,43:64-72.
[9] URANJEK M,BOSILJKOV V,ŽARNIC'RC'R,et al.Lime based grouts for strengthening of historical masonry buildings in Slovenia[M].Dordrecht:Springer Netherlands,2012:393-409.
[10] 李凯文，汤利梅.荡口古镇古建筑修缮修复[J].建筑结构，2012,42(S1):600-604.
[11] 李沛豪，屈文俊.石砌古建筑的细菌修复加固试验研究[J].建筑结构，2010,40(S2):420-423.
[12] 和法国，吕燃，粟华忠，等.SH材料加固夯筑遗址土耐久性试验及机理研究[J].岩土力学，2019,40(S1):297-307.
[13] 周铁钢，田鹏，邓明科，等.高延性纤维增强水泥基复合材料加固空斗墙承重房屋模型振动台试验研究[J].建筑结构学报，2018,39(12):147-152.
[14] TURNSEK V,CACOVIC F.Some experimental results on the strength of brick masonry walls[C]//Proceedings of the 2th IBM AC.England:Stoke-on-Trent,1971:149-156.
[2] 卢俊龙.实心砖石古塔动力特性与结构损伤分析[J].力学与实践，2016,38(5):560-566.
[3] 杜闯，陈海霞，边智慧，等.基于隔震技术的古建筑抗震保护研究[J].建筑结构，2017,47(17):71-75.
[4] 王社良，刘伟，杨涛.西安小雁塔结构振动控制试验研究[J].振动与冲击，2017,36(16):113-121.
[5] 周乾，杨娜，闫维明.CFRP布墩接加固木柱轴压试验研究[J].建筑结构学报，2016,37(S1):314-320.
[6] 兰明章，聂松，王剑锋，等.古建筑修复用石灰基砂浆的研究进展[J].材料导报，2019,33(9):1512-1516.
[7] 李爱群，周坤朋，王崇臣，等.中国古建筑木结构修复加固技术分析与展望[J].东南大学学报(自然科学版),2019,49(1):195-206.
[8] ZHOU K P,LI A Q,XIE L L,et al.Mechanism and effect of alkoxysilanes on the restoration of decayed wood used in historic buildings[J].Journal of Cultural Heritage,2020,43:64-72.
[9] URANJEK M,BOSILJKOV V,ŽARNIC'RC'R,et al.Lime based grouts for strengthening of historical masonry buildings in Slovenia[M].Dordrecht:Springer Netherlands,2012:393-409.
[10] 李凯文，汤利梅.荡口古镇古建筑修缮修复[J].建筑结构，2012,42(S1):600-604.
[11] 李沛豪，屈文俊.石砌古建筑的细菌修复加固试验研究[J].建筑结构，2010,40(S2):420-423.
[12] 和法国，吕燃，粟华忠，等.SH材料加固夯筑遗址土耐久性试验及机理研究[J].岩土力学，2019,40(S1):297-307.
[13] 周铁钢，田鹏，邓明科，等.高延性纤维增强水泥基复合材料加固空斗墙承重房屋模型振动台试验研究[J].建筑结构学报，2018,39(12):147-152.
[14] TURNSEK V,CACOVIC F.Some experimental results on the strength of brick masonry walls[C]//Proceedings of the 2th IBM AC.England:Stoke-on-Trent,1971:149-156.
Seismic performance test and finite element analysis of performance-enhanced ancient building masonry walls
Abstract: In order to improve the seismic performance of ancient building masonry structure, three groups of ancient building masonry test pieces and three ancient building masonry wall test pieces were designed and manufactured, which were strengthened by epoxy resin and methyl methacrylate respectively. The mechanical properties of the test block were studied through the material mechanical properties test, and the constitutive relationship of the performance-enhanced ancient 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. The results show that polymer materials can effectively restrict the development of cracks in the wall of ancient building masonry structure and improve the bearing capacity and deformation capacity of the wall. Compared with the unreinforced wall, the bearing capacity and ductility of the wall with epoxy resin are increased by 30% and 31% respectively, and the bearing capacity and ductility of the wall with methyl methacrylate are increased by 18% and 42% respectively. The hysteretic loop area and equivalent viscous damping coefficient of the strengthened wall are greater than those of the unreinforced wall, and the energy dissipation capacity is enhanced. Finally, the corresponding constitutive model is established according to the fitting test curve, and the finite element analysis of the performance enhanced ancient building wall is carried out. The finite element calculation results are in good agreement with the test results, which can provide a reference for the seismic protection of ancient building masonry structure.
Keywords: ancient building; masonry wall; seismic performance; epoxy resin; methyl methacrylate; polymer material
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