Steel channel sleeve restraining linear pure steel buckling restrained brace and manufacturing method thereof

Abstract

The invention relates to a steel channel sleeve restraining linear pure steel buckling restrained brace and a manufacturing method thereof. The steel channel sleeve restraining linear pure steel buckling restrained brace comprises a core plate with a linear cross section, a non-adhesive material layer, a periphery restraining sleeve and a belly steel plate, wherein the section of the periphery restraining sleeve is a vertical section which is a steel channel, and the belly steel plate is a section with the interior being a rectangle, and the section is formed by a common steel plate; the core plate is retracted by 5 mm in the height direction from the variable cross section of the end to the internal length range of the periphery restraining sleeve, a 10-20 mm long steel plate is welded to the outer side of the end steel channel of the periphery restraining sleeve, the exterior of the core plate is wrapped in the non-adhesive material layer, and a plug welding hole is formed in the belly steel plate of the periphery restraining sleeve corresponding to the center position of the core plate so that the belly steel plate and the periphery restraining sleeve can be connected together in a welded mode. According to the steel channel sleeve restraining linear pure steel buckling restrained brace, due to the fact that the two sides of the core plate are clamped in steel channel sleeve belly plate restraining pieces respectively and face contact restraining is achieved, the anti-local-bending capacity of core materials is improved and utilized, filling of restraining materials is not needed, dead loads are greatly reduced, the steel material utilization rate is high, and therefore high economical efficiency is achieved.

Description

technical field [0001] The invention relates to an earthquake-resistant and disaster-preventing building structure, which belongs to the category of structural shock-absorbing passive control, and specifically relates to a channel-steel sleeve constrained in-line pure steel buckling-constrained support and a manufacturing method thereof, which can be used in building structures to resist horizontal earthquakes , improve the seismic performance of the structure. Background technique [0002] Buckling-restrained brace is a structural member that can not only provide lateral stiffness without instability, but also stably realize energy dissipation and shock absorption under strong earthquakes. Experiments have shown that setting buckling-restrained braces in concrete frames can greatly increase the bearing capacity and improve the seismic performance of the structure. It is expected to replace some shear walls and increase the height of the frame structure. In addition, the bu...

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Problems solved by technology

[0005] However, the existing pure-steel buckling-restraint support peripheral restraint sleeves are complex in fabrication, have many welds, complex assembly between the core unit and peripheral restraint sleeves, long processing period, and high manufacturing cost, which will Not conducive to standardized operations and mass production

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