Eccentric support frame system easy to repair

A technology of eccentric support and frame system, which is applied to building components, building structure, earthquake resistance, etc., can solve the problems of long time, complicated construction, and large residual deformation of the web, and achieves easy control of processing accuracy and energy consumption effect. Better and lower construction difficulty

Active Publication Date: 2014-10-15
ARCHITECTURAL DESIGN & RES INST OF SOUTHEAST UNIV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, there are also some problems in the eccentrically braced frame: (1) The energy-dissipating beam section of the eccentrically braced frame is connected to the structural floor. According to the patent CN103741795A, the overall replacement of the energy-dissipating beam section will affect the normal use of the structure, and the construction is also relatively complicated; (2) the energy-dissipating beam section mainly dissipates energy through the shearing of the web during an earthquake, so the residual web of the general Large deformation, if the energy-dissipating beam sections are replaced together, there will be a large waste, which does not meet the requirements of energy conservation and environmental protection; (3) Further, if only the web is replaced, it is replaced by welding, considering welding and on-site construction operations It is difficult to further guarantee the energy dissipation effect of the replaced web
(4) At this stage, a series of strong aftershocks will follow after a major earthquake. How to quickly restore the seismic capacity and use function of the structure is also a problem that needs special attention in the design of structures and energy-dissipating components. For eccentrically braced frame structures, replace energy-dissipating beams obviously takes a long time

Method used

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  • Eccentric support frame system easy to repair
  • Eccentric support frame system easy to repair
  • Eccentric support frame system easy to repair

Examples

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Effect test

Embodiment 1

[0033] Such as Figure 2-7 As shown, an easily repairable eccentric support frame system includes frame column 1, frame non-energy-dissipating beam section 2, support 3 and frame energy-dissipating beam section 4; the frame energy-dissipating beam section 4 is located at the intersection point of support 3 and beam Between the beam and the column, it consists of two parts: the beam elastic part 4-1 and the energy dissipation part 4-2; the beam elastic part 4-1 is obtained by removing part of the web from the conventional energy dissipation beam section, and the energy dissipation part 4 -2 can be placed in the corresponding vacant position, and the two ends along the length direction of the energy-dissipating beam section are fixed to the web of the beam elastic part 4-1; the beam elastic part 4-1 is made of high-yield steel, The energy dissipation plate 4-2-2 in the energy dissipation component 4-2 is made of low-yield steel; one end of the energy dissipation component 4-2 al...

Embodiment 2

[0035] Such as Figure 8 Shown: this embodiment is the same as the rest of embodiment 1, the difference is that the connection plate 4-2-1 is directly connected with the energy dissipation plate 4-2-2.

Embodiment 3

[0037] Such as Figure 9 Shown: This embodiment is the same as the rest of Embodiment 1, except that the energy dissipation plate 4-2-2 has regular polygonal holes.

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Abstract

The invention discloses an eccentric support frame system easy to repair. The eccentric support frame easy to repair comprises frame columns, a non-energy-dissipation frame beam section, supports and energy-dissipation frame beam sections, wherein each energy-dissipation frame beam section comprises an elastic beam portion and an energy-dissipation portion, each elastic beam portion comprises beam flanges and a residue web obtained after an integral beam web is removed, and each energy-dissipation portion is mounted at the empty position obtained after the corresponding beam web is moved and comprises an energy-dissipation plate, a connection plate and a connection rib. The eccentric support frame system easy to repair has the advantages that under a function of strong shock, the energy-dissipation portions of the energy-dissipation frame beam sections can perform plastic energy dissipation firstly due to reasonable design, the elastic beam portions of the energy-dissipation frame beam sections are always kept within an elastic range, the energy-dissipation portions can be replaced conveniently and quickly after shock since the energy-dissipation portions are connected with the elastic beam portions via bolts, repairing of the elastic beam portions is not need, the difficulty in repairing the eccentric support frame system after shocking is lowered remarkably, and quick repairing of the current eccentric support frame system is achieved.

Description

technical field [0001] The invention belongs to the field of civil engineering and relates to an eccentric support structure system for reducing the seismic response of engineering structures. Background technique [0002] The frame support structure system is divided into the center support frame structure system and the eccentric support frame structure system. The central support remains elastic under small earthquakes and can provide high lateral stiffness. However, under the action of a large earthquake, the central support is prone to instability, resulting in a sharp drop in stiffness. If the common central support is designed to be unbuckled, it will cause excessive seismic force and the design is not economical. Although the centrally braced frame system increases the lateral stiffness of the structure, its performance degrades after buckling, which affects the seismic performance of the overall structure. Especially under earthquake action, the compressive beari...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/98E04B1/19
Inventor 孙逊王春林
Owner ARCHITECTURAL DESIGN & RES INST OF SOUTHEAST UNIV CO LTD
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