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Self-resetting concrete frame structure cup foundation after earthquake

A cup-shaped foundation and frame structure technology, applied in the direction of foundation structure engineering, construction, etc., can solve the problems of cracks, joints that do not show ductile seismic performance, separation seams, etc., to avoid environmental pollution, reduce fire and other harmful accidents, The effect of reducing construction waste

Inactive Publication Date: 2015-11-18
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the earthquake, the connection did not show the proper ductility and good seismic performance, but prematurely appeared cracks, cracks, etc.

Method used

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  • Self-resetting concrete frame structure cup foundation after earthquake
  • Self-resetting concrete frame structure cup foundation after earthquake
  • Self-resetting concrete frame structure cup foundation after earthquake

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Experimental program
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Embodiment Construction

[0019] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0020] Such as Figure 1-6 As shown, a novel post-earthquake self-resetting concrete frame structure cup-shaped foundation, which includes a cup-shaped foundation 4 and a frame column 5; There are grooved steps assembled with the cylindrical surface of the frame column 5, a tapered groove 10 is provided in the middle of the grooved step, and the two ends of the tapered groove 10 on the plane of the grooved step are arranged side by side with cup-shaped foundation reserved energy-dissipating reinforcement holes 8, The middle layer of the tapered groove 10 on the groove step plane is provided with side-by-side cup-shaped foundation reserved prestressed steel holes 9; the cup-shaped foundation reserved energy-dissipating reinforced holes 8 are parallel to the cup-shaped foundation reserved prestressed steel holes 9 structure.

[0021] The frame column 5 is a cylindric...

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Abstract

The invention relates to a novel post-earthquake self-returning concrete frame structure cup-shaped foundation, and belongs to the technical field of earthquake prevention and disaster reduction. The initial rigidity of the embedded cup-shaped foundation is identical to the rigidity of a cast-in-place concrete structure; under the situation that a story drift angle is small, prestressed steel bars still keep elasticity, energy-dissipation steel bars enter a plastic state so as to dissipate energy, and the embedded cup-shaped foundation can return to the initial position after an earthquake. Compared with the prior art, the novel post-earthquake self-returning concrete frame structure cup-shaped foundation is a breakthrough for traditional concrete structure building foundations, and fundamentally solves the problems that concrete structures are difficult to assemble and poor in ductility; compared with traditional concrete structure foundations, the novel post-earthquake self-returning concrete frame structure cup-shaped foundation has the advantages of having high safety, low pollution to the environment, few safety accidents, low engineering cost and the like.

Description

technical field [0001] The invention relates to a novel post-earthquake self-resetting concrete frame structure cup-shaped foundation, which belongs to the technical field of earthquake prevention and disaster reduction. Background technique [0002] The collapse of building structures in earthquakes is the most important reason that threatens people's lives and causes property losses. The Wenchuan and Ya'an earthquakes showed that concrete structures have poor seismic performance and weak foundations. At present, concrete structures are the main building structure forms in my country, especially the technology of prestressed concrete structures is at the international advanced level. The application of prestressed technology can reduce the deflection of beams and increase The span of the beam can also have the effect of self-resetting after the earthquake. Making full use of the advantages of prestressing technology and applying it to the concrete frame foundation will impr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D27/34E02D27/42
Inventor 高娇娇王威苏经宇马东辉
Owner BEIJING UNIV OF TECH
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