粘钢板加固集中荷载下简支混凝土双向板的性能研究  

THE BEHAVIOR OF TWO-WAY REINFOCED CONCRETE SLABS EXTERNALLY STRENGTHENED WITH STEEL PLATE TO SUBJECT PATCH LOAD

作　　者：张继文[1] 滕锦光[2] 吕志涛[1] 黄玉龙[2] 

机构地区：[1]东南大学 [2]香港理工大学

出　　处：《土木工程学报》2002年第2期20-25,47,共7页China Civil Engineering Journal

基　　金：香港理工大学资助项目 (G-S567)

摘　　要：采用体外粘贴碳纤维板 (CFRP)或钢板加固钢筋混凝土结构构件是一种有效的加固方法。近年来 ,世界上许多学者对此做了大量的研究工作 ,并取得了很大的成果。但迄今为止研究的重点仍然是钢筋混凝土梁及单向板 ,双向板的研究还相当少。为此 ,本文着重对受集中荷载作用的粘钢加固混凝土双向板的受力性能 :包括变形 ,抗裂 ,破坏形态和承载力等进行了较为深入的试验研究和理论分析。基于塑性铰线理论 。The behavior of two?way slabs externally strengthened with a steel plate to subject a patch load is studied in the paper, it is a simply supported reinforced concrete slab. It is focused to study the deformation, the crack resistance, the failure mode, and the bearing capacity of the strengthened slabs. At same time, a test of five pieces of reinforced concrete square slabs bonded with steel plate is carried out. Based on the yield?line method, a practical method to predict the ultimate load of strengthened slabs is proposed. It is found that the results of proposed method are in good agreement with the minimum of upper bond value.

关 键 词：粘结 屈服线法 粘钢板 集中荷载 简支混凝土 双向板 

分 类 号：TU375.2[建筑科学—结构工程]