摘要
混凝土构件裂缝控制始终为工程设计所关注,就荷载作用下钢筋混凝土受弯构件的裂缝宽度计算值、允许值以及裂缝宽度与耐久性的关系等方面内容进行了讨论。比较了国内外不同设计规范中裂缝宽度的计算方法与控制准则,对我国规范GB50010—2002在裂缝控制要求上存在的问题进行了探讨,指出混凝土规范给出的裂缝宽度计算值过大,对于裂缝的控制要求过度,并由此带来众多的负面作用,有必要作出适当调整或修正。同时,还针对我国桥涵规范和港工规范中的裂缝控制条文提出了建议。
The load-induced crack width in reinforced concrete flexural members and its relationship to durahility requirements are discussed. A comparision of different methods adopted in different design codes to calculate crack widths with corresponding admissible values is also examined. It is suggested that the crack-control criteria in current design code GB50010-2002 needs to be amended. Comments are also given to the Chinese national codes for bridges and culverts as well as marine structures.
出处
《建筑结构》
CSCD
北大核心
2007年第1期114-119,共6页
Building Structure
