Fabricated concrete column-steel beam energy dissipation type panel point connecting device

A concrete column and node connection technology, which is applied in the direction of architecture and building construction, can solve the problems of reducing the collapse resistance of structures, increasing the anti-seismic requirements of columns, and cracking floor slabs, so as to avoid bolt breakage, increase the damage threshold, and Effect of lateral stiffness

Active Publication Date: 2013-08-14
江苏德丰建设集团建筑科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In many concrete and precast concrete frames, beam end growth will have an adverse effect, possibly cracking the

Method used

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  • Fabricated concrete column-steel beam energy dissipation type panel point connecting device
  • Fabricated concrete column-steel beam energy dissipation type panel point connecting device
  • Fabricated concrete column-steel beam energy dissipation type panel point connecting device

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0040] Example 1:

[0041] This embodiment is an asymmetric friction connection. Such as figure 1 In the connection form shown, the friction plate 9 is only arranged at the lower flange, the web friction plate 14 is arranged at the web near the lower flange, and the friction plate 9 and the web friction plate 14 are respectively located in the oblong hole connecting cover plate 7 and The web is attached to the inside of the cover plate 10. The joints show rigid behavior during normal use. The beam-column connection under strong earthquakes produces relative rotation with the upper flange as the center of rotation through the sliding of the lower flange and the high-strength friction bolt 13 at the bottom of the web, such as figure 2 As shown, the impact on the floor can be reduced. When the contact surface between the friction plate 9 and the lower flange of the steel beam and the web cover 8 slips, the seismic energy is dissipated through friction to form a sliding hinge. By ...

Example Embodiment

[0042] Example 2:

[0043] This embodiment is a symmetrical friction connection. Such as image 3 As shown, an oblong hole connecting cover plate 7 is symmetrically arranged on the upper and lower flanges, and friction plates 9 are respectively arranged between the oblong hole connecting cover plate 7 and the upper and lower flanges. The friction plates 9 are located inside the oblong hole connecting cover plate 7, and the cover plates are connected. The bolt holes are all oblong holes 11, the bolt holes connecting the web cover 8 and the embedded steel beam 4 are circular holes 12, and the bolt holes connecting the web cover and the middle steel beam 3 are oblong 形孔11。 Shaped hole 11.

Example Embodiment

[0044] Example 3:

[0045] This embodiment is a frictionless plate connection method. Such as Figure 4 As shown, the circular hole connecting cover plate 6 is symmetrically arranged on the upper and lower flanges, but there is no friction plate between the circular hole connecting cover plate 6 and the flange, and the web additional cover plate 10 and the web friction plate are not provided at the web. 14. Both the flange and the web have circular holes 12, which are connected by high-strength bolts 5 to form a nearly rigid connection.

[0046] In summary, the fabricated concrete column-steel beam energy dissipating node connection device of the present invention is mainly composed of a beam-beam bolt connection part and a friction energy dissipating device. The invention aims to develop a connecting device matched with a fully prefabricated assembly process, reduce the adverse effect on the floor slab, and improve the energy consumption capacity of the assembly structure. The ...

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PUM

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Abstract

The invention discloses a fabricated concrete column-steel beam energy dissipation type panel point connecting device. The fabricated concrete column-steel beam energy dissipation type panel point connecting device is composed of a beam-beam bolt connection component and a friction energy dissipation device, and comprises a prefabricated concrete column, a pre-buried steel beam, a middle steel beam and a combination connection steel piece, wherein transversal surfaces of the pre-buried steel beam and the middle steel beam are both H-shaped, webs of the pre-buried steel beam and the middle steel beam are connected through a web cover plate, and flanges of the pre-buried steel beam and the middle steel beam are connected through a connection cover plate. Earthquake energy is dissipated by using friction plates attached inside a combination steel piece and through a friction energy dissipation mechanism. Compared with the prior art, the connecting device can reduce adverse effects on a floor and achieve a beam hinge yielding mechanism by moving a plastic hinge outward, the energy dissipation device can improve fabricated structure energy dissipation and reduce damages of main structural members, connection parts and the steel beams can be conveniently maintained, replaced and dismantled for reuse, and simultaneously, the fabricated concrete column-steel beam energy dissipation type panel point connecting device is produced by using a whole prefabricated industrialization standard, and installed only through bolts on site, and has strong engineering practicability.

Description

technical field [0001] The invention relates to a fully prefabricated assembled mixed frame structure, in particular to an assembled concrete column-steel beam energy-consuming node connection device. Background technique [0002] For prefabricated concrete frame structures, nodes and connections often become the weakest link in the entire structural system. Since the node connection plays an important role in transmitting, distributing internal forces and ensuring the integrity of the structure in the frame, its damage may cause the entire frame to lose its bearing capacity and cause the structure to collapse. Most areas in my country are located in earthquake-prone areas, and the connection reliability of prefabricated structures is poor, which makes it difficult to meet the performance requirements under earthquakes. In addition, the post-earthquake repair of node areas is difficult, so nodes and connections have become restrictions on the use of prefabricated structures ...

Claims

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Application Information

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IPC IPC(8): E04B1/58
Inventor 潘志宏张义保李爱群周智彬朱延章
Owner 江苏德丰建设集团建筑科技有限公司
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