CFRP加固混凝土板的承载力分析  

Study on Bearing Capacity of CFRP Reinforced Concrete Plates

作　　者：刘立成[1] 杨三汉[1] 晏石林[1] 

机构地区：[1]武汉理工大学工程结构与力学系,武汉430070

出　　处：《江苏建筑》2007年第3期24-26,共3页Jiangsu Construction

基　　金：国家自然科学基金(50573060)

摘　　要：在钢筋混凝土板的加固工程中,有些板只能在正弯矩区加固,而无法在板端负弯矩区加固。针对这种情况,利用双向板的设计理论-塑性铰线法,研究了碳纤维复合材料(CFRP)加固混凝土板的设计方法,并推导了加固设计的理论计算公式。并利用理论公式和有限元软件ANSYS计算板的承载能力,计算结果表明,在板底局部粘贴CFRP能显著提高板的承载能力,因而是一种有效的加固方法。in the practice of reinforcement , some concrete slab can not be reinforced in negative moment area, and it only can be reinforced in positive moment area, in connection with the phenomena, in this paper, we make use of the method of yield line in the field of design, and put forward a theoretical method in the field of reinforcement. We calculate the bearing capacity of slab with theoretic method and a limit element software ANSYS , and the result show that bearing capacity can be raised greatly , when we stick CFRP in limited area of underside of the slab, so the way of reinforcement is effective.

关 键 词：双向钢筋混凝土板 塑性铰线法 碳纤维复合材料 加固 

分 类 号：TU375.2[建筑科学—结构工程]