Buckling restraint support for pieces of corrugated web H-shaped steel

Abstract

The invention discloses a buckling restraint support for pieces of corrugated web H-shaped steel. The buckling restrained support comprises a core unit, a restraint unit and a sliding mechanism unit; the core unit comprises the pieces of corrugated web H-shaped steel and pieces of flat web H-shaped steel; the corrugated web cross section of each piece of corrugated web H-shaped steel is in a corrugated shape; the two ends of the pieces of corrugated web H-shaped steel are fixedly connected with the pieces of flat web H-shaped steel used for section reinforcing to form a whole; the restraint unit is a cavity which encloses the core unit, and concrete is poured into the cavity; the pieces of flat web H-shaped steel at the two ends of the core unit penetrate through the two ends of the cavity; and the sliding mechanism unit comprises a non-binding expandable material wrapped on the surface of the core unit. The higher bearing capacity requirement can be met, the restraint effect is better, the burden on an outer sleeve can be lowered, the sleeve section is reduced, economy is improved, the cost is reduced, and meanwhile the self weight of the buckling restraint support can be reduced appropriately.

Description

technical field [0001] The invention relates to a building damping device, in particular to a corrugated web H-shaped steel buckling restraint support. Background technique [0002] Buckling-restrained braces are a common energy-dissipating and shock-absorbing component, which can yield before the main structure under small earthquakes. With its superior hysteresis performance, it can fully dissipate seismic energy and is widely used in engineering structures. [0003] The working mechanism of the buckling restrained brace is that the core steel brace provides bearing capacity, and the outer sleeve provides lateral restraint to avoid buckling instability of the core unit before yielding. Compared with ordinary steel supports, since the stability coefficient is not considered under compression conditions, the cross-sectional utilization of members can be improved to a certain extent. However, since the outer sleeve does not provide bearing capacity, the section utilization i...

AI Technical Summary

Problems solved by technology

[0008] With the application and popularization of buckling-constrained braces, the existing cross-section forms cannot meet more diversified design requirements. For example, for higher bearing capacity requirements, a new core element form is needed to further improve the cross-sectional utilization of members

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