某高层住宅剪力墙混凝土置换长度的研究与应用  

Research and application of concrete replacement length for shear walls in a high-rise residential building

作　　者：董玉桐 朱传明 孙建东 Dong Yutong;Zhu Chuanming;Sun Jiandong(Shandong Quality Inspection and Testing Center of Construction Engineering Co.,Ltd.,Jinan Shandong 250031,China;Shandong Academy of Building Research Co.,Ltd.,Jinan Shandong 250031,China)

机构地区：[1]山东省建筑工程质量检验检测中心有限公司,山东济南250031 [2]山东省建筑科学研究院有限公司,山东济南250031

出　　处：《山西建筑》2025年第4期43-46,81,共5页Shanxi Architecture

基　　金：山东省住房和城乡建设厅课题:高荷载作用下剪力墙混凝土整体置换技术研究与实践应用(课题编号:2022-K3-4)。

摘　　要：针对实际工作中遇到的高层住宅剪力墙混凝土强度严重不足的问题,需采用置换混凝土加固法进行加固,对置换长度进行了研究。从四面墙体实际情况出发,探讨了置换长度对轴压比、偏心受压承载力、墙体刚度和变形的影响,得出了局部置换的可行性和各指标受置换长度的影响程度,提出了临界置换长度的概念,可作为除置换边缘构件外所需置换长度的补充。结合耐久性要求,未置换的混凝土采取耐久性防护措施。This paper takes as its background the severe inadequacy of concrete strength in shear walls of high-rise residential buildings encountered in practical work,necessitating reinforcement through replacement concrete strengthening methods.It investigates the length of replacement and derives insights based on the actual conditions of four-sided wall structures.The study explores the impacts of the replacement length on axial compression ratio,eccentrically loaded compressive capacity,wall stiffness,and deformation.It confirms the feasibility of local replacements and quantifies the extent to which these various indicators are influenced by the replacement length.The paper introduces the concept of a critical replacement length,which can serve as a supplementary guideline for determining the required replacement length beyond edge components.In conjunction with durability requirements,durable protection measures are proposed for the unreplaced concrete sections.

关 键 词：剪力墙结构 混凝土强度 置换加固 置换长度 

分 类 号：TU398.2[建筑科学—结构工程]