摘要
反向加载条件下的粘钢加固能够消除粘钢补强中钢板应力滞后的现象。分析了反向加载下粘钢加固梁的受力机理,并根据平截面假定及应力应变关系,分三种情况分析了粘钢加固梁的相对受压区高度ζ_b,最终得出界限破坏的相对受压区高度公式。
The method of strengthening by epoxy-bonded plate under the opposite side loading condition will eliminate the lagging stress of steel.The characteristic of bearing load in the strengthened beam was analyzed.According to the assumption of line-linear and the stress-strain relationship,the relative compression height of strengthened beam was discussed in three situations,and the formula of relative compression height in the ultimate load was gotten.
出处
《建筑结构》
CSCD
北大核心
2012年第S1期609-611,共3页
Building Structure
关键词
粘钢加固
反向加载
应力应变
相对受压高度
strengthened by epoxy-bonded plate
opposite side loading
stress and strain
relative compression height
