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
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[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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