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Support pre-stress connection joint of concrete support frame structure

A technology for supporting frames and connecting nodes, which is applied in the direction of building structure, construction, etc., can solve the problems of affecting the quality of concrete pouring, unclear force transmission in node areas, and difficult construction, so as to save costs, construction processes and procedures Simple, easy-to-make effects

Pending Publication Date: 2019-11-22
南京东鼎建筑科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Many connection construction methods currently exist generally have problems such as unclear force transmission in the joint area, complex structure, and difficult construction. The slab often needs to be equipped with a large number of shear parts and anchor bars, which is inefficient and affects the quality of concrete pouring and tamping

Method used

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  • Support pre-stress connection joint of concrete support frame structure
  • Support pre-stress connection joint of concrete support frame structure
  • Support pre-stress connection joint of concrete support frame structure

Examples

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Embodiment Construction

[0019] see Figure 1-6 , a support prestressed connection node of a concrete support frame structure of the present invention, comprising a concrete abutment 1 in the node area, a prestressed component 2, and a pre-embedded connector 3 .

[0020] Set vertical bars 11 in the concrete abutment 1, and insert them into the structural columns 4 and structural beams 5 to meet certain anchorage length requirements, and the stirrups 12 are bound between the vertical bars 11 and the longitudinal bars of the structural beams 5; The prestressed component 2 includes high-strength prestressed steel bars 21, inner anchor plates 22, anchors 23 at both ends of the prestressed steel bars, grid-type indirect steel bars 24 or spiral-type indirect steel bars 25; the embedded connector 3 includes embedded steel plates 31. Connecting steel plates 32 and anchor bars 33, the pre-embedded steel plates 31 are pre-embedded on the surface of the concrete abutment 1, the connecting steel plates 32 are wel...

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Abstract

The invention discloses a support pre-stress connection joint of a concrete support frame structure. The support pre-stress connection joint comprises a joint area concrete pier abutment, a pre-stressassembly and a pre-buried connection part, and erection ribs and hoops are arranged in the concrete pier abutment; the pre-stress assembly comprises high-strength pre-stress steel bars, inner anchorplates, anchorage devices at the two ends of the pre-stress steel bars, square grid type indirect steel bars or spiral indirect steel bars; and the pre-buried connection part comprises pre-buried steel plates, connecting steel plates and anchor ribs, and holes are reserved in the pre-buried steel plates to allow the pre-stress steel bars to penetrate and be anchored. Through pre-stress generated when the pre-stress steel bars are tensioned, tension during support tensioning is transmitted to a beam-column joint, the pressure during support pressing is transmitted to the beam-column joint through compression resistance of pier abutment concrete, all parts are designed according to the strength, through the structure, force transmitting of the support joint is direct, construction is easy, the construction cost is low, the advantages of pre-stress tensioning and compression resistance of the concrete are fully combined, and a traditional complex and low-efficiency construction mode and construction mode of a non-pre-stress connection joint are improved.

Description

technical field [0001] The invention belongs to the field of civil engineering, and relates to a support prestress connection node of a concrete support frame structure. Background technique [0002] After many years of theoretical research and engineering tests, the concrete braced frame structure has been proved to have good lateral stiffness, and it is an economical and very effective structural system. The support is generally made of steel members, and ordinary steel support or buckling restraint support can be used. [0003] However, for concrete braced frame structures, the reasonable and effective connection structure between braces and concrete frame beam-column nodes has always been one of the key problems that must be solved in practical engineering. Many connection construction methods currently exist generally have problems such as unclear force transmission in the joint area, complex structure, and difficult construction. Slabs often need to be equipped with ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/41E04B1/22
CPCE04B1/41E04B1/22E04B2001/4192
Inventor 钱德军
Owner 南京东鼎建筑科技有限公司
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