既有建筑结构的加固设计及施工研究  

Research on Strengthening Design and Construction of Existing Building Structures

作　　者：彭霞 Peng Xia(Guizhou Coal Mine Design and Research Institute Co.Ltd.,Guiyang,Guizhou 550025)

机构地区：[1]贵州省煤矿设计研究院有限公司,贵州贵阳550025

出　　处：《江西建材》2024年第12期377-379,共3页

摘　　要：文中以贵州省贵阳市某综合楼为研究对象,初步拟定四种抗震加固改造方案,综合安全性、经济性及承载性能,确定既有多层建筑最终加固方案为粘贴碳纤维复合材料加固法。通过加固后检验可知,梁柱转角>25 rad,混凝土表面含水率为4.6%,碳纤维布有效黏结面积为98%,碳纤维布与梁黏结强度为2.9 MPa,碳纤维布与柱黏结强度为3.2 MPa,碳纤维厚度约为1.5 mm,均满足设计规范要求,加固效果良好。This paper takes a comprehensive building in Guiyang City,Guizhou province as the research object,preliminarily proposes four seismic reinforcement schemes,comprehensive safety,economy and load-bearing performance,and determines that the final reinforcement scheme of the existing multi-storey building is reinforced with carbon fiber composite material.After reinforcement,it can be seen that the Angle of beam and column is>25 rad,the surface moisture content of concrete is 4.6%,the effective bonding area of carbon fiber cloth is 98%,the bonding strength of carbon fiber cloth and beam is 2.9 MPa,the bonding strength of carbon fiber cloth and column is 3.2 MPa,and the Angle thickness of carbon fiber is about 1.5 mm,all of which meet the requirements of the design specification.The reinforcement effect is good.

关 键 词：既有建筑 钢筋混凝土 加固设计 

分 类 号：TU74[建筑科学—建筑技术科学]