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Box iron grooving type H-shaped variable-cross-section steel core buckling-prevention limiting and energy-consumption supporting component

A technology of I-shaped steel and cross-section, applied in building components, anti-vibration and other directions, can solve the problem of less research on the limiting effect of anti-buckling support, and achieve the effect of superior performance, convenient purchase and complete specifications

Inactive Publication Date: 2014-04-09
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current research and development of anti-buckling braces mainly focuses on improving their energy dissipation capacity, and there are few studies on the limiting effect of buckling-resistant braces

Method used

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  • Box iron grooving type H-shaped variable-cross-section steel core buckling-prevention limiting and energy-consumption supporting component
  • Box iron grooving type H-shaped variable-cross-section steel core buckling-prevention limiting and energy-consumption supporting component
  • Box iron grooving type H-shaped variable-cross-section steel core buckling-prevention limiting and energy-consumption supporting component

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the examples, but the present invention is not limited to the following examples, and the claims shall prevail.

[0022] Such as figure 1 As shown, a channel steel slotted I-shape variable section steel core anti-buckling energy-dissipating support member. It includes an I-shaped steel core (1) and an outer restraint steel pipe (2), and the cross section of the outer restraint steel pipe is 300×300mm. The I-shaped steel core (1) includes a connection section a, a section with a locally enlarged section b, and a yield working section c. The cross section of the I-shaped steel core (1) is partially enlarged at the outer steel pipe limiting groove (4) with a slope angle of 60° until the cross section passes through the outer steel pipe limiting groove (4) by about 30 mm. The two rectangular areas formed between the energy-dissipating steel core (1) and the outer confinement steel pipe (2) are fille...

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Abstract

The invention discloses a box iron grooving type H-shaped variable-cross-section steel core buckling-prevention limiting and energy-consumption supporting component and belongs to the technical field of buckling-prevention limiting and energy-consumption supporting components. Connection segments a, cross section local enlarging sections b and a buckling working section c are sequentially arranged from the two ends of a steel core to the middle of the steel core. The buckling working section c is located between the two cross section local enlarging sections b, and four wing positions, corresponding to the cross section local enlarging sections b of the H-shaped steel core, of an outer constraint steel pipe are provided with limiting grooves. The length of the limiting grooves is slightly larger than the length of the cross section local enlarging sections b, and four wings of the cross section local enlarging sections b extend out of the outer constraint steel pipe through the limiting grooves, the cross section of the H-shaped steel core is locally enlarged at the limiting grooves with the slope angle of 60 degrees till the cross section penetrates out of the limiting grooves of the outer constraint steel pipe. In the early stage of load bearing, the variable-cross-section steel core consumes energy and buckles, when deformation reaches the constrained point of the limiting grooves, the outer constraint steel pipe and the buckled steel core commonly provide axial rigidity, the constraint structure is integrally deformed, and the function of limiting displacement is achieved.

Description

technical field [0001] The invention belongs to the technical field of anti-buckling energy-dissipating support members, and relates to a new type of anti-seismic energy-dissipating and position-limiting support member for engineering structures, in particular, a built-in steel core with a variable cross-section I-shape and an outer restraint sleeve with an open Buckling-resistant energy-dissipating support members of channel-type butt-welded channel steel. In the early stage of loading, the variable cross-section steel core consumes energy and yields, and when the deformation reaches the restraint point of the limit groove, the external restraint steel pipe and the yielded steel core together provide axial stiffness, constrain the overall deformation of the structure, and realize the function of limiting displacement. Background technique [0002] Buckling-restrained brace is also called buckling-restrained brace or BRB (Buckling restrained brace). The product technology wa...

Claims

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Application Information

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IPC IPC(8): E04B1/98
Inventor 马华张芳亮李汉杰汪瓅帆李振宝
Owner BEIJING UNIV OF TECH
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