Buckling constraint support internally provided with steel tube and externally covered with fiber pipe

Abstract

The invention provides a buckling constraint support internally provided with a steel tube and externally covered with a fiber pipe and belongs to a novel energy-dissipation and shock-absorbing component. The support can be applied to structure shock absorption and engineering reinforcing. Reinforcing pipes at the ends penetrate into centroid drilled holes of end plates firstly, the end faces of the reinforcing pipes are flush with the side faces of the end plates, and then welding and grinding are conducted; the outer surface of the core steel tube is coated with a silica gel material, after the silica gel material is dried, the core steel tube is sleeved with the constraint fiber pipe, longitudinal middle points of the constraint fiber pipe and the core steel tube coincide with each other, and one end of the constraint fiber pipe is attached to the core steel tube through structural glue; then the two reinforcing pipes at the ends are inserted into the two ends of the core steel tube respectively, and welding is conducted after the core steel tube abuts against the end plates; four reinforcing ribs are evenly and symmetrically welded to the two ends of the core steel tube respectively. The buckling constraint support internally provided with the steel tube and externally covered with the fiber pipe has the advantages of being high in energy dissipation capacity, low in self weight, flexible in section form, simple in structure, convenient to machine, little in waste and the like, is wide in application range, and can effectively solve many problems in existing structure shock absorption and engineering reinforcing.

Description

technical field [0001] The invention relates to a buckling constrained support, in particular to a buckling constrained support with a built-in steel pipe and a fiber tube wrapped around it and a manufacturing method thereof. Background technique [0002] Buckling-restrained braces can improve the buckling instability of ordinary braced members when they are under compression. In the frame support system composed of buckling-restrained braces and frames, buckling-restrained braces bear most of the horizontal load. Absorbing and dissipating external energy, thereby realizing structural energy dissipation and protecting the main structure, can significantly improve the ductility and energy dissipation and shock absorption behavior of the structural system. However, the external restraint mechanism of the traditional steel tube-type buckling-restrained brace is a steel tube, and the mass of the support member is relatively large, which is not conducive to reducing the weight of...

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