Buckling restrained brace with steel pipe concrete sleeved on round pipe as inner core

Abstract

The invention discloses a buckling restrained brace with steel pipe concrete sleeved on a round pipe as an inner core. The buckling restrained brace consists of an inner core steel supporting component, an unbonded material layer and an externally coated steel pipe concrete component, wherein inner core steel supporting component is a cylindrical steel pipe; the unbonded material layer is coated on the outer wall of the cylindrical steel pipe; the externally coated steel pipe concrete component is a tubular component; a clearance is formed between the unbonded material layer and the inner side wall of the externally coated steel pipe concrete component; cross connecting steel plates are fixedly welded in the two ends of the cylindrical steel pipe and extend outwards along the axial direction of the cylindrical steel pipe; and the diameter of the extending sections is more than the inner diameter of the cylindrical steel pipe. The middle part of the inner pipe is a restrained yield section, the parts, reinforced by the cross connecting steel plates, at the end parts of the inner pipe are restrained non-yield section, and the externally extending parts are non-restrained non-yield sections. The material of the inner pipe is convenient to select, the inner pipe is convenient to machine and low in welding workload; and the outer pipe conveniently supports a die and is convenient to pour, low in weight and low in comprehensive cost. Therefore, the buckling restrained brace can be applied to civil buildings, industrial buildings, public buildings, bridge engineering and the like.

Description

Technical field: [0001] The invention relates to the field of construction, in particular to support members in civil engineering, in particular to support members used in new construction or reinforcement construction projects, in particular to a buckling-constrained support with a circular tube outer jacket concrete filled steel tube. Background technique: [0002] In civil engineering, the wind and earthquake resistance design guarantees the stiffness, strength and ductility by enhancing the wind and earthquake resistance of the supporting structure itself, but this kind of supporting structure is prone to buckling when it is under compression, causing some structures to withdraw from work and reducing the lateral stiffness of the structure , causing the load of other parts to increase and the deformation of the structure to increase, which is very unfavorable to the structure. A buckling-restrained support structure is a support structure that does not buckle under compr...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a buckling-restrained support whose inner core is a circular tube jacket concrete-filled steel pipe. The buckling-restricted brace whose inner core is a circular tube jacket concrete-filled steel pipe is to solve the inconvenient construction of buckling-restricted support members in the prior art, Technical problems that are not easy to inspect, heavy and costly

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