外贴碳纤维加固混凝土梁的抗剪设计

DESIGN OF CARBON FIBER REINFORCED PLASTIC TO STRENGTHEN SHEAR OF CONCRETE BEAM

针对CFRP(carbonfiberreinforcedplastic)抗剪加固梁 ,提出一种新的抗剪极限状态分析方法。即把CFRP类似箍筋处理 ,既考虑有效CFRP应变控制 ,又同时考虑界面剪切强度控制。加固后的CFRP梁的抗剪力主要由箍筋 (包括弯起筋 )、混凝土和CFRP承担。本文同时通过CFRP加固抗剪实验数据处理 。

Here a new way is issued to settle critical state of reinforced concrete beam with carbon fiber in resisting shear。Namely,two kind of indexes will have to be taken into account together,one is virtual strain,the other is shear intensity of interface。Besides these, via contrast of experiment data, we design a optimum project to resist adscititious shear.