All-steel-assembled buckling restrained brace with lateral side capable of being inspected

Abstract

The invention provides an all-steel-assembled buckling restrained brace with the lateral side capable of being inspected. Welded joints at the ends of stiffening ribs are smoothed, the low-cycle fatigue performance of the brace is effectively improved, the plastic deformation capability of steel is adopted, and meanwhile the state of an inner core can be easily judged through the lateral side after a seism. The all-steel-assembled buckling restrained brace solves the problems that the deformation or damage state of the inner core cannot be conveniently evaluated rapidly after a seism, the welded joints at the ends of the stiffing ribs have quality defects, and the damaged inner core cannot be conveniently replaced. The buckling restrained brace achieves the aims that the deformation state of the inner core can be judged without detaching, and whether the inner core should be replaced or not can be rapidly evaluated after a seism; the welded joints at the ends of the stiffing ribs are processed, the middle cross section of the inner core is possibly damaged, and the low-cycle fatigue performance of the brace is improved; an assembled scheme is adopted, and the damaged inner core can be conveniently replaced. The all-steel-assembled buckling restrained brace comprises the inner core, the end stiffing ribs, two restrained face plates, gaskets, limiting grooves and high-strength bolts.

Description

technical field [0001] The present invention relates to a buckling constrained brace. Background technique [0002] Ordinary steel braces are prone to compressive buckling under reciprocating horizontal earthquakes, resulting in a sharp decrease in stiffness, bearing capacity, and energy dissipation capacity, which significantly reduces the ductility of the structure. Buckling-restrained bracing is a kind of energy-dissipating and shock-absorbing component used in construction engineering and bridge engineering. It uses the axial tensile-compression plastic deformation of steel to absorb energy, and restrains its buckling under compression by setting constraining components on the periphery of the inner core. It can also produce large axial deformation, and the overall instability of the support will not occur. Buckling restraint braces can not only provide stiffness to the structure, but also play a role in energy dissipation and shock absorption, thereby avoiding major da...

AI Technical Summary

Problems solved by technology

[0009] Aiming at the current development status of buckling-restrained bracing, the problems to be solved in the present invention are: (1) it is inconvenient to quickly evaluate the inner core deformation or damage state after the earthquake; (2) the quality defect of the weld seam at the end of the stiffener; Replace damaged core

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