FRP对砌体结构抗震加固的研究进展

Research Progress on Seismic Reinforcement of Masonry Structures with Fiber Reinforced Polymer

FRP材料因其具有优越的力学性能和便捷的施工方法,被越来越多地应用于各类结构的抗震加固,尤其对于我国现存的大量老旧砌体结构房屋,采用FRP加固能够有效提高其承载能力和抗震能力。通过回顾国内外FRP加固砌体结构的研究现状,归纳FRP加固砌体的抗震性能、平面外抗弯性能以及界面粘结性能的相关试验研究,分析FRP加固砌体的抗剪承载力计算模型和数值模拟等理论研究,提出了FRP对砌体结构抗震加固领域有待进一步研究的关键问题,对今后拟开展的研究方向提出了建议,并分析材料的工作机理、利用率和造价等因素,提出了相对更优的纤维增强材料。

Due to their excellent mechanical properties and convenient construction methods,Fiber Reinforced Polymer(FRP)materials are widely used in the field of structural seismic reinforcement,especially in the reinforcement of many old masonry structure buildings existing in China to improve their bearing and seismic capacity.First,through reviewing researches of masonry structure with FRP in China and abroad,we summarized the relevant test researches on the seismic performance,lateral bending performance and interface bonding performance of the reinforced structure with FRP.And then based on the research of the calculation model and numerical simulation of shear bearing capacity of the reinforced structure with FRP,we proposed the key issues to be further studied in the field of seismic reinforcement of it,and put forward suggestions for future research.Finally,by analyzing factors such as working mechanism utilization rate and cost of materials,we put forward a relatively better fiber reinforced material.