钢丝网钢纤维砂浆加固钢筋混凝土梁试验研究  

Wire Mesh-Steel Fiber Mortar Reinforced Concrete Beams in Bending Test Research

作　　者：易治民 陈升平[1] 

机构地区：[1]湖北工业大学土木工程与建筑学院,湖北武汉430068

出　　处：《湖北工业大学学报》2013年第4期44-46,68,共4页Journal of Hubei University of Technology

摘　　要：钢丝网钢纤维砂浆加固钢筋混凝土梁在提高构件的承载力、刚度和耐久性方面有明显的效果,且加固成本低,具有良好的工程应用前景.通过一根对比梁和两根加固梁进行了一次受力的四点弯曲试验,试验量测了梁的挠度和钢筋的应变.试验结果表明,钢丝网钢纤维砂浆加固方法能显著提高普通钢筋混凝土梁的开裂荷载,极限荷载的提高则不明显;此外,该方法能有效的抑制裂缝的开展,延缓裂缝形成的时间,提高梁的刚度.The reinforced concrete beams reinforced by the steel mesh and steel fiber mortar has a significant effect in improving the bearing capacity,stiffness and durability of the component,with low reinforcement cost and good engineering prospect.In this paper,the researcher conducted once force-bearing four-point bending test through the contrast beams and two reinforced concrete beams to measure the deflection of the beam and strain of the steel.Experimental results show that the reinforcement method of the steel mesh and steel fiber mortar can significantly improve the cracking load on the ordinary reinforced concrete beams,while the improvement of the ultimate load was not that obvious.In addition,the method can also effectively suppress the development of the crack and retain the crack formation time,improve the stiffness of the beam.

关 键 词：钢丝网 钢纤维 水泥砂浆 钢筋混凝土 梁加固受弯 

分 类 号：TU317[建筑科学—结构工程] TU376