基于装配式技术加固既有砌体结构抗震性能试验研究  

Experimental study on seismic performance of existing masonry structures reinforced with fabricated reinforcement method

作　　者：宋杰 赵国栋 张营营 赵庆阳 杜新明 于鹏浩 SONG Jie;ZHAO Guodong;ZHANG Yingying;ZHAO Qingyang;DU Xinming;YU Penghao(Shandong Architectural Science Research Institute Co.,Ltd,Jinan 250031,China;School of Mechanics and Civil Engineering,China University of Mining and Technology,Xuzhou 221116,China;Shandong Construction Engineering Quality Inspection and Testing Center Co.,Ltd,Jinan 250031,China;Shandong Jianke Special Construction Engineering Technology Center Co.,Ltd,Jinan 250031,China)

机构地区：[1]山东省建筑科学研究院有限公司,山东济南250031 [2]中国矿业大学力学与土木工程学院,江苏徐州221116 [3]山东省建筑工程质量检验检测中心有限公司,山东济南250031 [4]山东建科特种建筑工程技术中心有限公司,山东济南250031

出　　处：《建筑结构学报》2025年第3期140-152,共13页Journal of Building Structures

基　　金：济南市“高校20条”资助项目(2018GXRC009);山东省建筑科学研究院有限公司科技计划项目(2021ZD014)。

摘　　要：为了解决砌体结构绿色改造问题,提出采用等代圈梁和构造柱以及预制夹板的砌体结构装配式加固方法,通过11个未加固和加固砌体墙拟静力试验,研究销键连接芯材、单(双)面加固、等代圈梁和构造柱的材质与形式以及预制夹板位置等因素对加固砌体墙抗震性能的影响,提出加固设计建议。结果表明:加固砌体墙的破坏模式为剪压破坏;采用螺杆销键、角钢等代构造梁柱的双面加固方法加固效果良好,相较于未加固墙体其承载力、延性和耗能能力分别提高98%、200%、1 300%;与螺杆销键加固相比,钢绞线销键加固墙体的初始刚度和耗能略有提高,承载力提升效果不明显;单面加固墙体的加固效果可达双面加固的65%左右,无等代构造柱加固墙体的加固效果为角钢等代构造柱加固的40%左右。加固设计时,建议优先采用螺杆连接的双面加固方法,等代构造柱的材质和形式根据结构服役环境和施工条件确定。To solve green reinforcement of masonry structures,a prefabricated reinforcement method using equivalent beam-column and prefabricated concrete panels was proposed.11 quasi-static tests were conducted to study the effects of dowel materials,single/double sided reinforcement,beam-column material and form,and concrete panels position on the seismic performance.The reinforcement suggestions were proposed.Test results show that the failure mode of reinforced walls is shear-compression failure.Compared to the unreinforced masonry wall,the bearing capacity,ductility and energy dissipation capacity of the double-sided reinforced wall with screw and angle steel are increased by 98%,200%and 1300%,respectively.The initial stiffness and energy dissipation of the wall reinforced with steel strand are slightly higher than those of the wall reinforced with screw dowel.The reinforcement effect of single-sided reinforced walls is about 65%of that of double-sided reinforced walls,while the reinforcement effect of the walls reinforced with non-equivalent columns is about 40%of that of walls reinforced with angle steel.It is recommended to prioritize the double-sided reinforcement method with screw dowel,and the material and form of equivalent columns should be determined according to the service environment and construction conditions.

关 键 词：砌体结构 装配式加固 拟静力试验 破坏模式 抗震性能 

分 类 号：TU362[建筑科学—结构工程]