Novel buckling energy consumption support

An energy-dissipating support, anti-buckling and energy-consuming technology, applied in the direction of building types, building components, earthquake resistance, etc., can solve the problems of restricting BRB structure, self-heavy, inconvenient transportation and installation, etc., to achieve convenient transportation and installation work, light weight , Improve the effect of self-importance

Inactive Publication Date: 2017-04-26
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing BRB products are supported by steel and concrete materials. Due to the shortcomings of heavy weight, inconvenient transportation and installation, the application of BRB structures in reinforcement or energy consumption and anti-seismic aspects is limited to a certain extent.

Method used

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  • Novel buckling energy consumption support
  • Novel buckling energy consumption support
  • Novel buckling energy consumption support

Examples

Experimental program
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Effect test

Embodiment Construction

[0024] A CFRP steel-wood anti-buckling energy-dissipating support consists of four parts: a core steel plate, an outsourcing restraint wood block, a CFRP winding restraint layer, and an unbonded material.

[0025] The inner core steel plate is an ordinary steel support member, with connection structures at both ends, and connected with the main structure through bolted gusset plates. The inner core steel plate has two main functions: (1) under normal use conditions, it plays the same role as ordinary steel support members; (2) under strong earthquakes, it yields under tension and compression, consuming seismic energy.

[0026] The constraining elements consist of outer elm blocks and interspersed (along the full length) wound CFRP material. Main functions: (1) Improve the bending stiffness of the supporting member, thereby increasing the bearing capacity of the entire structure; (2) Constrain the core steel plate to make it yield under compression, so that the compressive and ...

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PUM

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Abstract

The invention discloses a steel and wood buckling energy consumption support and belongs to the technical field of structural engineering. The buckling energy consumption support comprises a core force bearing steel plate, a periphery constraint part and a no-bonding layer, wherein the main body part of inner core force bearing steel plate is in a linear shape. Connecting sections and transition sections at the two ends of the inner core force bearing steel plate are welded to an auxiliary connecting plate to form a cross-shaped cross section. The periphery constraint part is composed of a wood block wrapped with a steel plate and a CFRP material wrapped transversely in the length direction of a member together. The no-bonding layer is arranged between the core steel plate and the constraint wood block. The invention belongs to the technical field of civil engineering structural damping. Hysteretic energy performance of the steel support member under the effect of a strong earthquake is obviously improved. Compared with the prior art, the process of twining the CFRP outside is adopted in the steel and wood buckling energy consumption support, the structure is compact, the economical and practical effects are achieved. A constraint unit is made of light weight timber, so that the shortcoming that the self weight of a traditional buckling preventing energy consumption support is large is overcome. The steel and wood buckling energy consumption support is easy to machine, is convenient and flexible to use, and has wide market popularizing prospects.

Description

technical field [0001] The invention relates to a steel-wood buckling energy-dissipating support member, which can be used for earthquake resistance and reinforcement of engineering structures, and belongs to the field of structural engineering. Background technique [0002] Frame structures using steel braces exhibit better seismic performance, but ordinary steel braces are prone to buckling under seismic loads, which reduces energy dissipation performance and material utilization. Using anti-buckling energy-dissipating braces is one of the main ways to improve the overall seismic performance of structures. [0003] The concept of anti-buckling energy-dissipating brace was first proposed by Yoshino et al. in 1971. Since then, a large number of scholars have conducted research on various forms of buckling-resistant bracing (BRB), and applied them in many practical projects. Most of the existing BRB products are supported by steel and concrete materials. Due to the shortcom...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04H9/02E04B1/98
CPCE04H9/021
Inventor 宋晓滨蒋海燕
Owner TONGJI UNIV
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