疲劳荷载下高强钢筋混凝土梁裂缝和刚度计算  

The crack of high-strength reinforced concrete beam under fatigue load and its rigid calculation

作　　者：肖卓[1] 

机构地区：[1]石家庄一建建设集团有限公司

出　　处：《山西建筑》2008年第9期128-130,共3页Shanxi Architecture

摘　　要：以疲劳试验为基础,分析研究了高强钢筋混凝土梁在疲劳荷载作用下的受力变形特点,提出了高强钢筋混凝土梁在疲劳荷载作用下的裂缝宽度和刚度计算方法及公式,并用9根高强钢筋混凝土梁的试验数据进行了验算,结果表明试验值和计算值较吻合。Taking fatigue test as the foundation, the author analyzes the deformation characteristics of high-strength reinforced concrete beam under fatigue load, puts forward the method and formula to calculate the length and rigid of cracks, and carries out check computations by using testing data of nine high-strength reinforced concrete beams, which shows that the testing value is rather identical with calculating value.

关 键 词：高强钢筋混凝土梁 疲劳荷载 裂缝 刚度 

分 类 号：TU375.1[建筑科学—结构工程]