摘要
对我国规范GB50010—2002、美国规范ACI318-05和欧盟规范EN 1992-1-1:2004关于荷载作用下钢筋混凝土受弯构件的裂缝宽度控制标准、裂缝宽度计算原理和方法进行了比较分析。以试验数据为样本,对上述各规范的裂缝宽度计算公式进行了定量比较。并比较了各规范允许的裂缝宽度。结果表明,按我国规范GB50010—2002计算的裂缝宽度较大,该规范对裂缝的控制要求较严。在此基础上,并结合有关的试验资料,对钢筋混凝土构件的裂缝控制提出了建议。
The allowable crack widths and equations for maximum crack width in different design codes,including the code GB50010—2002,the code ACI318-05 and the code EN 1991-1-1:2004 are analyzed.A quantitative comparison of the equations for maximum crack width adopted in these codes is made based on the existing test data.A comparative analysis of the allowable crack widths in these codes is also carried out.Our research shows that the crack-control criterion in the code GB50010—2002 is stricter.In addition,design recommendations are put forward for crack control in reinforced concrete beams.
出处
《武汉理工大学学报》
CAS
CSCD
北大核心
2010年第13期67-71,共5页
Journal of Wuhan University of Technology
基金
国家"863"计划(2004AA33G050)
关键词
钢筋混凝土梁
裂缝控制
裂缝宽度
长期作用
reinforced concrete beams
crack control
crack width
long-time effect