【摘要】 高强不锈钢绞线—渗透性聚合物砂浆加固技术是一种具有耐火、耐腐蚀、耐老化的新型加固工艺。为研究该加固工艺的受力破坏特征,对2根该工艺加固的钢筋混凝土矩形梁、2根粘贴钢板加固梁、2根粘贴碳纤维板加固梁和2根未加固对比梁的抗弯性能进行对比试验分析。结果表明:所有加固措施均能有效地提高梁的受弯承载力;高强不锈钢绞线—渗透性聚合物砂浆加固能更好地提高梁的刚度,能较好地约束裂缝的发展。更多还原

【Abstract】 Rehabilitation of RC members with stainless steel wire mesh-permeability polymer mortar is a new method of structural strengthening with the advantages of resistance to fire,corrosion and ageing. In order to study the damage characteristics of the reinforcement process,the bending performance tests of 2 reinforced concrete rectangular beams,2 bonded steel plate reinforcement beams,2 bonded carbon fiber reinforced beams and 2 unreinforced comparison beams were carried out comparative analysis. The results show that all the reinforcement measures can effectively improve the flexural capacity of the beam; Strengthened stainless steel wire mesh-permeability polymer mortar reinforcement can better improve the stiffness of the beam and better constrain the development of cracks.更多还原