一、引言在已建结构物中,有时会因原设计不当或工程扩建使荷载变化等种种原因,需要增加结构物局部乃至整体的稳定性,或提高某些构件截面强度,或改善因裂缝开展,变形过大而出现的不良工作状态,这就要进行所谓的结构补强。 I. INTRODUCTION In the existing structure, sometimes due to the original design or project expansion to make the load change and other reasons, the need to increase the stability of the structure part or the whole, or to improve the strength of some members of the cross-section, or to improve the crack initiation, Excessive deformation and the emergence of bad working conditions, which will carry out the so-called structural reinforcement.