铆粘钢板加固钢筋混凝土梁的抗剪性能试验研究

Experimental Study on Shear Properties of R.C.Beams Strengthened with externally bonded Steel Plate Anchored by Rivets or Screw

通过6根采用铆粘U形钢板加固的钢筋混凝土梁和2根未加固对照梁的受剪性能对比试验,与对照梁进行对比,分析了铆粘钢板加固梁斜截面的受力特点以及承载能力、裂缝开展、刚度变化和加固效果,提出了铆粘钢板加固钢筋混凝土梁的受剪承载力计算方法.试验研究结果表明,该公式具有较好的适用性.

Six R.C.beams strengthened with this method and two un-strengthened R.C.beams are tested and analyzed.The shear properties,bearing capacity,development of cracks,rigidity and the strengthened effect of the beams anchored by rivets or screw are discussed and compared with the un-strengthened beam.A design formula is given about R.C.beam which is strengthened with externally bonded steel plate anchored by rivets or screw in this paper,and the results indicate that the formula provides good reliability.