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Buckling restrained brace with energy dissipation device sandwiched with lead layer and provided with steel plates at two ends and method for manufacturing buckling restrained brace

An energy-consuming device and constrained buckling technology, which is applied in the processing of building materials, building components, building structures, etc., can solve the problems of difficulty in establishing a constrained buckling bracing design method, material properties cannot be fully exerted, and buckling is prone to occur. Overcome the effect of energy efficiency not being fully utilized, avoiding premature yielding, and increasing energy consumption capacity

Inactive Publication Date: 2012-07-25
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, the outer restraint mechanism only plays a role in preventing buckling of the inner core, and its material properties cannot be fully exerted, and the connecting part of the inner core exposed to the outer restraint memb

Method used

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  • Buckling restrained brace with energy dissipation device sandwiched with lead layer and provided with steel plates at two ends and method for manufacturing buckling restrained brace
  • Buckling restrained brace with energy dissipation device sandwiched with lead layer and provided with steel plates at two ends and method for manufacturing buckling restrained brace
  • Buckling restrained brace with energy dissipation device sandwiched with lead layer and provided with steel plates at two ends and method for manufacturing buckling restrained brace

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Embodiment 1

[0032] The restrained buckling brace with lead layer energy dissipation devices between parallel mild steel plates at both ends is as follows: Figure 1 to Figure 6 . The restrained buckling support with lead layer energy dissipation devices between parallel soft steel plates at both ends of this embodiment includes outer steel pipes, end steel plates 8, inner steel plates 4 and energy dissipation of lead layers between parallel soft steel plates connecting these two parts Device and Internal Constraint Filling Material6. The outer layer steel pipe is welded by the outer layer steel pipe steel plate 5. The energy-dissipating device of the lead layer between parallel soft steel plates is composed of parallel energy-dissipating steel plates 1 (for the interior of the energy-dissipating device of the lead layer between parallel mild steel plates) and steel plates 2 (used for energy dissipation of the lead layer between parallel mild The two ends of the device) are connected wit...

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Abstract

The invention relates to a buckling restrained brace with an energy dissipation device sandwiched with a lead layer and provided with steel plates at two ends and a method for manufacturing the buckling restrained brace. An inner steel plate is connected with an outer-layer steel tube steel plate by the energy dissipation device sandwiched with the lead layer and provided with the parallel flexible steel plates, restraining filling materials are filled in a space between a buckling restrained section of the inner steel plate and an outer-layer steel tube before the outer-layer steel tube is sealed, then the outer-layer steel tube is sealed, and accordingly the buckling restrained brace with the energy dissipation device sandwiched with the lead layer and provided with the steel plates at the two ends is formed. The shortcoming that an outer-layer buckling restrained steel plate of an existing buckling restrained brace cannot be sufficiently utilized is overcome, and the problem of early yielding of an exposed portion of an inner core is avoided. Furthermore, the inner steel plate is connected with the outer-layer steel tube by the energy dissipation device sandwiched with the lead layer and provided with the parallel flexible steel plates, axial force is partially transmitted to the outer-layer steel tube via the inner steel plate and the energy dissipation device sandwiched with the lead layer and provided with the parallel flexible steel plates, and the rigidity and the energy dissipation capacity of the integral buckling restrained brace are improved. In addition, the energy dissipation capacity of the buckling restrained brace is improved by 20% to 50% as compared with a traditional buckling restrained brace.

Description

technical field [0001] The invention relates to a restrained buckling support with an energy dissipation device, in particular to a restrained buckling support with a lead layer energy dissipation device between parallel soft steel plates at both ends and a manufacturing method thereof. Background technique [0002] The restrained buckling brace is considered to be a new type of lateral-force-resistant bracing member with dual functions of ordinary brace and metal damper. The inner core is mild steel with low strength and rigidity. It is generally made of pure iron or low-carbon steel with low yield point. Its function is to bear the axial load. The outer restraint part does not participate in resisting axial load, but only protects core and prevent it from buckling. The role of restrained buckling braces in buildings is reflected in the fact that when the load due to earthquakes is not large, the restrained buckling braces are equivalent to diagonal braces located in the b...

Claims

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Application Information

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IPC IPC(8): E04B1/98E04G21/00
Inventor 曹万林李国东董宏英张建伟
Owner BEIJING UNIV OF TECH
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