既有修建框架结构加固修复方法的论述(国外英文资料).doc

既有建筑框架结构加固修复方法的论述(国外英文资料) Sticky steel occupies a small space, and it hardly changes the original shape of the component. The technology is mainly used in concrete breaking beams, broken columns, shock absorbers and seismic reinforcement of life-line buildings. 6) bonded carbon fibre cloth reinforcement CFRP is an emerging and high technology structure strengthening method. The strength of carbon fiber materials is about ten times the strength of ordinary steel bar, and the elastic modulus is several times the steel bar, it is a kind of fine structure reinforcing material. So can use high performance structural adhesive to pasting carbon fiber materials with original component surface, to reinforce the reinforcing of the original structures and improve the seismic performance of the original components. At the same time, the carbon fiber reinforced method is highly efficient, the material is thin, the weight is light, the construction is convenient, durable corrosion and so on. But with carbon fiber reinforced method for bonding adhesive performance is higher, the bonding carbon fiber cloth with glue with foreign imports, mainly depends on the corresponding cost is higher, such as large area to promote this method also has certain difficulty. 7) concrete replacement technology When the beam, plate, or column of the component such as concrete strength can not meet the design requirements or are too many difference, but will not meet the requirements of the quality of concrete chisel, conform to the requirements of the new concrete, as long as the set of beam plate template and support, at the same time adjust good reinforcing steel bar is relatively easy to implement. But when it comes to pillars, whole or certain areas, especially when there are layers of columns on top, it is very difficult to replace the concrete. So must be prepared to support design, satisfy the strength requirement should meet the requirements of stability of deformation at the same time, the