Fiber-reinforced composite material-wood-steel combined buckling-restrained brace

Abstract

The invention discloses a fiber-reinforced composite material-wood-steel combined buckling-restrained brace. The fiber-reinforced composite material-wood-steel combined buckling-restrained brace comprises an inner core and an outer combined restraint sleeving the inner core, wherein the outer combined restraint comprises cushion blocks, a plurality of protecting plates, wood blocks and a fiber-reinforced composite material, the protecting plates are arranged on the periphery of the inner core longitudinally, each two adjacent protecting plates are connected through the cushion block arranged at the outer ends of the cushion blocks so as to form an enclosed structure accommodating the inner core, the wood blocks are arranged on the outer surfaces of the protecting plates connectively, and the fiber-reinforced composite material is wound on the integral outside of the cushion blocks, the protecting plates and the wood blocks longitudinally. The fiber-reinforced composite material-wood-steel combined buckling-restrained brace has the advantages of low self weight, short manufacturing period, convenience in transportation, simplicity in mounting and replacement and the like while bearing and energy-dissipating capabilities are guaranteed, can be applied to multi-story buildings and high-rise buildings with concrete structures and steel structures and can solve the problem of safety of building structures under the action of earthquakes.

Description

technical field [0001] The invention belongs to the technical field of building structure engineering and relates to a buckling-resistant energy-consuming support. Background technique [0002] Buckling-resistant energy-dissipating braces have the characteristics of ordinary braces and high energy consumption, effectively overcome the defects of common steel braces that are prone to overall buckling and insufficient seismic capacity, and have been widely used in seismic engineering. At present, the anti-buckling energy-dissipating braces are classified from the perspective of the material of the externally constrained members, which are mainly divided into two types: concrete-constrained anti-buckling energy-dissipating braces and all-steel anti-buckling energy-dissipating braces. Concrete-constrained buckling-resistant energy-dissipating braces have the disadvantages of self-heavy weight, long production cycle, and difficult transportation and installation; all-steel buck...

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Problems solved by technology

CN102767249A discloses an invention patent named "fiber-reinforced concrete external restraint buckling-resistant energy-dissipating support member and its manufacturing method". The outer restraint is made of concrete outsourcing fiber reinforced material, which can effectively avoid the corrosion of the traditional steel pipe outer restraint , has better durability, but its own weight, long production cycle, and difficult problems in transportation, installation and replacement still exist; CN101575915B discloses a practical energy-dissipating support named "fiber-reinforced composite material restrained buckling-resistant energy dissipation". A new type of patent, which uses fiber-reinforced composite materials as the restraint system, and mortar, lightweight concrete, bamboo strips, wood or foam as filling materials, which has the advantages of light weight, convenient construction and molding, and corrosion resistance. In June 2012, Volume 29, Issue 6 of the magazine titled "Experimental Research on FRP Fast Buckling-Resistant Axial Compression Steel Components", it can be seen from the curve of the test results that when bamboo strips, wood, etc. are used as filling materials, After the energy-dissipating support reaches the ultimate load, the bearing capacity drops rapidly, and its energy-dissipating capacity is limited

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