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
董玉桐 1朱传明 1孙建东1
作者信息
- 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;山东省建筑科学研究院有限公司,山东 济南 250031
- 折叠
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.
Abstract
This paper takes as its background the severe inadequacy of concrete strength in shear walls of high-rise resi-dential 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 com-pressive 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 unre-placed concrete sections.
关键词
剪力墙结构/混凝土强度/置换加固/置换长度Key words
shearwall structure/concrete strength/replacement reinforcement/replacement length引用本文复制引用
出版年
2025
NETL
NSTL
万方数据