RETROFITTING HIGH-RISE STRUCTURES USING FRP COMPOSITE MATERIALS

摘要

FRP composites offer many advantages to owners, architects/engineers, and contractors for making modifications or alterations to building structures;undertaking upgrades for seismic, wind or blast loading conditions;as well as strengthening of structural elements (Fig. 13 and 14). FRP composites have been used successfully over the past three decades in the United States and abroad and have significantly replaced the traditional methods of adding new support beams or externally bonded steel plates or jackets. Not only do FRP composite materials offer higher strength than steel and concrete, they are extremely lightweight and noncor-rosive, which provides for long-lasting repairs and sustainable structures. The industry has published design codes, guidelines, and approval criteria which enable structural engineers to safely determine which structures are candidates for FRP repairs and how to best design and detail a repair solution.