Buckling inducing brace with ends provided with annular screw-type induction units

Abstract

The invention discloses a buckling inducing brace with the ends provided with annular screw-type induction units. The buckling inducing brace with the ends provided with the annular screw-type induction units comprises retraining sections and energy dissipation sections and further comprises a brace straight section. The energy dissipation sections are arranged at the two ends of the brace straight section. Each energy dissipation section is composed of at least one annular screw-type induction unit in the axial direction of the brace. Each annular screw-type induction unit is a space body with a regular polygon section, wherein the space body is formed in the manner that m annular screw-type induction subunits are annularly and sequentially arranged. Each annular screw-type induction subunit is a space body which is formed by two collinear triangular plates through folding. The buckling inducing brace with the ends provided with the annular screw-type induction units keeps elasticity under the action of a small earthquake; and under the action of an intermediate earthquake or a large earthquake, the buckling inducing brace enters a yielding stage, and the buckling inducing brace can achieve the effect of a damper through the good hysteretic energy dissipation capacity. Compared with a traditional buckling restraining brace, the buckling inducing brace with the ends provided with the annular screw-type induction units lightens the on-site construction workload, saves energy and is environmentally friendly.

Description

technical field

[0001] The invention belongs to the technical field of building structures, and in particular relates to a buckling-inducing support with a circumferential spiral-type inducing unit at the end, which is suitable for steel structures or concrete structures with buckling-constrained supports. Background technique

[0002] During the use of steel structures or reinforced concrete structures, ordinary supports will buckle under compression. When the supports buckle under compression, the stiffness and bearing capacity will decrease sharply. Under the action of earthquake or wind, the internal force of the support changes back and forth under the two states of compression and tension. When the support gradually changes from the buckling state to the tension state, the internal force and stiffness of the support are close to zero. Therefore, the hysteretic performance of ordinary supports is poor under repeated loads. In order to solve the problem of buckling und...

Examples

Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings.

[0026] figure 1 It is a structural schematic diagram of a buckling-induced brace with circumferential helical induction elements at the end, which is composed of an end-restrained section 1, an energy-dissipating section 2, and a straight support section 3. The end-constrained section 1 is fixed at the beam-column node and Between the sections 2, the energy dissipation section 2 is fixed at both ends of the supporting straight section 3.

[0027] Such as figure 2 As shown, the end restraint section 1 is composed of a square steel plate 4, a T-shaped short steel beam 5, and a connecting plate 6 reserved for components such as beams and columns. The square steel plate 4 is welded to the end of the energy dissipation section 2. Two T-shaped short steel The beam 5 is welded to the square steel plate 4, and the square steel plate 4 and the T-shaped short steel beam 5 are...

technical field

[0001] The invention belongs to the technical field of building structures, and in particular relates to a buckling-inducing support with a circumferential spiral-type inducing unit at the end, which is suitable for steel structures or concrete structures with buckling-constrained supports. Background technique

[0002] During the use of steel structures or reinforced concrete structures, ordinary supports will buckle under compression. When the supports buckle under compression, the stiffness and bearing capacity will decrease sharply. Under the action of earthquake or wind, the internal force of the support changes back and forth under the two states of compression and tension. When the support gradually changes from the buckling state to the tension state, the internal force and stiffness of the support are close to zero. Therefore, the hysteretic performance of ordinary supports is poor under repeated loads. In order to solve the problem of buckling und...

Examples

Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings.

[0026] figure 1 It is a structural schematic diagram of a buckling-induced brace with circumferential helical induction elements at the end, which is composed of an end-restrained section 1, an energy-dissipating section 2, and a straight support section 3. The end-constrained section 1 is fixed at the beam-column node and Between the sections 2, the energy dissipation section 2 is fixed at both ends of the supporting straight section 3.

[0027] Such as figure 2 As shown, the end restraint section 1 is composed of a square steel plate 4, a T-shaped short steel beam 5, and a connecting plate 6 reserved for components such as beams and columns. The square steel plate 4 is welded to the end of the energy dissipation section 2. Two T-shaped short steel The beam 5 is welded to the square steel plate 4, and the square steel plate 4 and the T-shaped short steel beam 5 are...

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