Patent ID: 8789319
Filing Date: 2014-07-29
Classification: E04B,E04H,Y10T

Abstract:
1. A seismic-incurred-rupture-resistant deformation-recordable buckling-restrained brace, comprising a concrete filled steel tubular outer sleeve ( 1 ), a core plate ( 2 ) being disposed in the concrete filled steel tubular outer sleeve, an end portion of the core plate being provided with a core plate stiffening rib ( 8 ), and further comprising a brace deformation recording device ( 5 ), wherein the brace deformation recording device comprises two toothed racks ( 51 ), a ratchet gear ( 55 ), a first cord spool ( 58 ), and a second cord spool ( 56 ), the two toothed racks are fixed on the core plate stiffening rib ( 8 ), the ratchet gear ( 55 ) is connected to the concrete filled steel tubular outer sleeve ( 1 ), a row of ratchet pawls ( 53 ) is disposed on a length direction of each toothed rack ( 51 ), the direction of the ratchet pawls on one toothed rack is opposite to that of the ratchet pawls on the other toothed rack, two sides of the ratchet gear are engaged with the ratchet pawls on the two toothed racks respectively, the first cord spool ( 58 ) is fixed on a shaft center of the ratchet gear, the second cord spool ( 56 ) is fixed on the core plate stiffening rib ( 8 ), one end of a cord is wound on the second cord spool, the other end of the cord is fixed on the first cord spool, and when deforming, the core plate drives the two toothed racks to move relative to the concrete filled steel tubular outer sleeve ( 1 ), and the ratchet pawl drives the ratchet gear and the first cord spool to rotate in a unidirectional manner, and winds a part of the cord from the second cord spool onto the first cord spool.