预应力碳纤维布加固混凝土矩形偏压柱力学性能影响因素分析及有限元模拟  

Study on the factors affecting the mechanical behavior of RC columns strengthened with prestressed CFRP sheets and finite element simulation

作　　者：梁丰[1] 刘瑛[2] 唐陆健 Liang Feng a Liu Ying b Tang Lujian a(a. School of Civil Engineerin b. School of Management, Qingdao Technological University, Qingdao 266520, Shandong)

机构地区：[1]青岛理工大学土木工程学院,山东青岛266520 [2]青岛理工大学管理学院,山东青岛266520

出　　处：《工程建设》2017年第9期14-20,共7页Engineering Construction

基　　金：山东省自然科学基金(ZR2013EEM010)

摘　　要：通过在已有研究基础上推导出的正截面承载力公式,对比分析一次受力、二次受力下预应力碳纤维布加固矩形混凝土偏压柱正截面承载力的影响因素,分析预应力碳纤维布加固对矩形偏压柱正截面承载力的提高效果,并用ABAQUS有限元分析软件对一次受力、二次受力下普通碳纤维布加固和预应力碳纤维布加固矩形偏压柱的受力全过程进行模拟,对比预应力施加大小、碳纤维布加固层数对矩形混凝土偏压柱力学性能的影响。In this paper, the influence factors of the normal section bearing capacity of rectangular concrete columns strengthened with prestressed CFRP sheets under the first and second loads were compared and analyzed, and the bearing capacity of the columns with rectangular eccentric compression columns strengthened by prestressed CFRP and the stress of RC columns strengthened with ordinary CFRP sheets and prestressed CFRP sheets was simulated by ABAQUS finite element analysis software. Compared with the prestressing force, the effect of the number of reinforcement layers of CFRP sheets on the mechanical properties of the eccentric compression column of rectangular concrete was provided.

关 键 词：预应力 碳纤维布 影响因素 偏压柱 

分 类 号：TU375.3[建筑科学—结构工程]