Development of structural strengthening method with prestressed near-surface mounted FRP reinforcements

在杂交中考虑了玄武岩纤维增强聚合物(BFRP)和钢琴钢丝，以实现高的刚性、强度和延性性能。结果表明，环氧腻子-混凝土界面、聚合物水泥砂浆与FRP的粘结强度不是很高，但混凝土与聚合物水泥砂浆、环氧腻子与FRP之间有较好的粘结性能。为了研究预应力FRP加固RC梁的抗弯性能，对预应力FRP加固RC梁的结构性能进行了分析研究。

Basalt fiber reinforced polymers (BFRP) and piano wires are considered in the hybridization in order to realize high performances in stiffness, strength, and ductility. It is confirmed that the bond strengths at epoxy putty-concrete interface and at polymer cement mortar and FRP are not so high, but a good bonding can be realized between concrete and polymer cement mortar and between epoxy putty and FRP. The structural performances of RC beams strengthened can be enhanced largely with prestressed FRP An analytical study is also performed in order to investigate the flexural behavior of RC beams strengthened with prestressed FRP.