钢筋混凝土粘钢加固梁的非线性分析

The non-linear analysis of beams consolidated by the steel plate

根据混凝土的非线性本构关系,提出了粘钢加固梁的开裂弯矩、极限弯矩、刚度的计算方法,并将理论值与试验值进行对比分析.提出了应对钢板端部剥离应力、粘钢锚固长度、强剪弱弯等进行验算的建议,以保证粘钢加固梁发生抗弯破坏.

Calculating methods of cracking moment, ultimate moment, stiffness of the beams strengthened by steel plate are offered according to the non-linear relationship between stress and strain of concrete. The theoretical and experimental results are compared and analyzed, In addition, the proposals of checking the separating stress, bonding lengthen, strong shearing and weak bending are supposed for the strengthened concrete beams could fail because of bending.