A self-resetting energy-dissipating steel beam capable of eliminating frame expansion effect and its construction method

An expansion effect and self-resetting technology, applied in the direction of building types, buildings, building components, etc., can solve the problems of internal force of frame structure and obstruction of beam end rotation, so as to eliminate internal force of frame structure and obstruction of beam end rotation, and dissipate earthquake Effect of input energy, elimination of residual deformation

Active Publication Date: 2022-03-18
SOUTHEAST UNIV
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  • Abstract
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Problems solved by technology

[0003] However, when the self-resetting steel frame beam-column joints are opened, the distance between the column axes increases due to the joint openings compared with the undeformed state, and the frame as a whole will have an expansion effect, resulting in difficult-to-digest internal forces of the frame structure and obstacles to the rotation of the beam ends, and The more spans of the overall structure, the more obvious the expansion effect of the self-resetting frame

Method used

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  • A self-resetting energy-dissipating steel beam capable of eliminating frame expansion effect and its construction method
  • A self-resetting energy-dissipating steel beam capable of eliminating frame expansion effect and its construction method
  • A self-resetting energy-dissipating steel beam capable of eliminating frame expansion effect and its construction method

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[0032] The present invention is described in further detail now in conjunction with accompanying drawing. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.

[0033] The present invention aims to provide a self-resetting energy-consuming steel beam that eliminates the expansion effect of the frame. While having the self-resetting function, it can avoid the expansion effect of the entire frame after the opening of the beam-column joint; All the components obtained can be prefabricated and processed in the factory. The two ends of the H-shaped steel beam 1 are wedge-shaped, so that the H-shaped steel beam is set in a trapezoidal shape, and the length of the upper flange at the top is smaller than the lower flange at the bottom. The length of the flange; the setting of this trapezoidal structure is as follows figure 1...

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Abstract

The invention relates to a self-resetting energy-consuming steel beam capable of eliminating the frame expansion effect and a construction method thereof. The two ends of the H-shaped steel beam are wedge-shaped cutting, and a turning space is reserved on the upper part; the lower flange of the H-shaped steel beam passes through the welded wing The flange stiffener is indirectly connected to the flange of the H-shaped steel column; the shear plate is provided with a long hole so that the beam end can rotate relatively freely; The stranded wire passes through the reserved hole between the stiffener connector and the flange of the H-shaped steel column, and then prestresses the shape memory alloy stranded wire and anchors it through the anchor; the steel beam has a self-resetting function under earthquake action, and can Dissipate the energy input by the earthquake, and at the same time avoid the expansion effect of the overall frame when the beam-column joints appear openings.

Description

technical field [0001] The invention relates to a self-resetting energy-consuming steel beam capable of eliminating the expansion effect of a frame and a construction method thereof, belonging to the field of anti-seismic and shock-absorbing technology of building structure engineering. Background technique [0002] The self-resetting steel structure is a recoverable earthquake-resistant structure, which can maintain acceptable functions when subjected to fortification or rare earthquakes, and can restore its function without repair or minor repair after the earthquake. A large number of research results have shown that self-resetting structures have excellent seismic performance, small residual deformation after earthquakes, easy construction and maintenance of structural systems, and high cost-effectiveness throughout their life. [0003] However, when the self-resetting steel frame beam-column joints are opened, the distance between the column axes increases due to the jo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04B1/98E04H9/02E04B1/24E04B1/58
CPCE04B1/98E04H9/021E04H9/024E04B1/24E04B1/2403E04B1/58E04B2001/2406E04B2001/2466
Inventor 李维滨俞昊然
Owner SOUTHEAST UNIV
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