纤维织物增强混凝土薄板加固混凝土梁抗弯性能试验研究

Experimental Study on Bending Resistance of Concrete Beam Reinforced by Fiber Textile Reinforced Concrete Sheet

通过对纤维织物增强混凝土薄板加固混凝土梁抗弯性能的试验,研究了这种加固方法对提高试验梁抗弯承载力的效果。结果表明,用纤维织物增强混凝土薄板来加固混凝土梁能有效提高试验梁的承载力,减小试验梁的裂缝宽度和跨中挠度,对试验梁底部进行凿糙处理及在薄板端部植入钢筋,能有效提高薄板与加固梁的之间的界面粘结力。

Based on the tests of flexural capacity about concrete beam strengthened by fiber textile reinforced con- crete sheet, the strengthening effect of the concrete beam is studied. The results show that using the sheet to strengthen concrete beam increases the ultimate load of the concrete beam and reduces distortion of the concrete beam, meanwhile, effectively inhibits the expansion of the cracks. The inteffacial roughness and planting reinforced bars can improve the bond behavior between the concrete beam and sheet.