摘要
对于实际强度明显不满足设计要求的混凝土墙体,用高强材料置换其表层截面是一种简便、实用的加固方法,对所形成的墙体组合截面的弹性应力进行了解析分析,根据等强等截面、等强增大截面、超强等截面、超强增大截面四种墙体加固情况,分别推导了置换表层厚度计算方法,给出了计算例题和应用实例,可作为相关试验研究与加固设计的参考。
For reinforced concrete walls in which concrete strength is obviously lower than that of design requirement, it is a simple and practical strengthening method to replace their surface layer by high-strength materials. In this paper, calculation analysis is processed about elastic stresses of the strengthened composite section, then based on 4 situations of same conversion strength and section, same conversion strength and larger section, higher conversion strength and same section, higher conversion strength and lager section after these walls strengthened, the way to determine the depth of surface layer to be replaced is proposed, as well as the calculation samples and an engineering application are given, which can be referenced in comparative tests and designs.
出处
《建筑科学》
北大核心
2012年第5期65-70,共6页
Building Science
关键词
高强置换材料
表层置换
混凝土墙体
保留截面
弹性应力
变形协调
high-strength replacement material
surface layer replacement
reinforced concrete wall
remained wall section
elastic stress
coordinate deformation.
