Connecting joint of steel corbel and prefabricated reinforced concrete beam bottom square column
By introducing steel key plates and limiting plates at the connection between the steel corbel and the precast reinforced concrete beam, combined with stiffening plates and reinforced concrete columns, the problem of weak welds was solved, and the seismic performance and post-construction stability of the connection were improved.
Patent Information
- Application Number
- CN202520218280.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-12
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2035-02-12
AI Technical Summary
The existing steel brackets are not welded firmly enough when connected to precast reinforced concrete beams. They are easily damaged by external forces or vibrations, resulting in cracks or separation at the connection.
The design employs steel key plates and limiting plates, fixing the steel bracket to the pre-embedded steel plate at the bottom of the beam via welding grooves. Upper and lower stiffening plates and concrete reinforcement columns enhance the connection strength and stability, while the limiting grooves facilitate quick alignment and initial positioning.
It improves the seismic performance and post-construction stability of steel structure buildings, and ensures the reliability and durability of the connection between the steel bracket and the precast reinforced concrete beam.
Smart Images
Figure CN223634116U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model application relates to the technical field of connecting node, specifically is a kind of steel hanger and prefabricated reinforced concrete beam bottom square column connecting node. BACKGROUND
[0002] Reinforced concrete beam is made of reinforced concrete material, is the most basic load-bearing component in housing construction, bridge construction and other engineering structures, and is widely used. Steel hanger is a commonly used connection form in steel structure building, mainly used for the connection between steel column and beam. It is usually found in industrial plants and has the shape of an inverted trapezoid with a flat top and an inclined bottom. It can increase the stability of the building, adjust the height and position of the structure, and strengthen the rigidity of the structure.
[0003] When the existing steel hanger is connected to the bottom of the prefabricated reinforced concrete beam, it is usually welded to the surface. When subjected to external forces or vibration forces, the steel hanger and the beam bottom rely on the weld joint for force transmission. If the weld quality is poor or if a major earthquake occurs, the weld joint may fail, causing cracks or even separation at the connection between the steel hanger and the prefabricated reinforced concrete beam. SUMMARY
[0004] To solve the problem of insufficient firmness of the welding point when the existing steel hanger is connected to the prefabricated reinforced concrete beam, the utility model provides a steel hanger and prefabricated reinforced concrete beam bottom square column connecting node to solve the above problems.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:
[0006] A steel hanger and prefabricated reinforced concrete beam bottom square column connecting node includes a prefabricated steel beam pipe and a beam bottom embedded steel plate. Each side of the prefabricated steel beam pipe is fixed with a beam bottom embedded steel plate. Each beam bottom embedded steel plate is provided with a steel hanger bottom plate at the bottom. Each group of beam bottom embedded steel plates and steel hanger bottom plates are equally spaced with a plurality of welding grooves inside. Each welding groove is inserted with a steel key plate, and each steel key plate is welded and fixed inside the welding groove.
[0007] Further, the top surface of each beam bottom embedded steel plate is welded and fixed with an upper stiffening plate at both ends. The side edges of the upper stiffening plate are welded and fixed on the side walls of the prefabricated steel beam pipe.
[0008] Further, the bottom surface of the beam bottom embedded steel plate at the side edge of each welding groove is fixed with a lower stiffening plate. Each lower stiffening plate is designed as a right-angled triangle.
[0009] Further, the top of each steel key plate is designed as a trapezoid, and the thickness of each steel key plate is greater than the thickness of the beam bottom embedded steel plate and the steel hanger bottom plate.
[0010] Further, the outer surface of the prefabricated steel beam pipe and the top surface of the embedded steel plate at the beam bottom between each two of the upper stiffening plates are poured with concrete reinforcing columns, and the bottom plate of the steel bracket and the side edge of the lower stiffening plate are welded and fixed on the outer surface of the prefabricated steel beam pipe.
[0011] Further, the top surface of the embedded steel plate at the beam bottom of each side edge of the upper stiffening plate is provided with a limiting clamping groove, and each limiting clamping groove is clamped and inserted with a limiting clamping plate.
[0012] Further, the bottom surface of each limiting clamping plate is fixed on the top surface of the steel bracket bottom plate, and each limiting clamping plate and limiting clamping groove are arranged in an L-shaped transverse position.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] 1、In the utility model, when the steel structure is vibrated or impacted, the relative movement force between the steel bracket bottom plate and the embedded steel plate at the beam bottom is applied to the steel key plate, the mechanical biting force transmission of the steel key plate is more reliable, the ductility is better, and the anti-seismic performance is better, the problem of insufficient welding of the existing steel bracket and the prefabricated reinforced concrete beam is solved, and the firmness of the steel structure building after construction is improved.
[0015] 2、In the utility model, the limiting clamping plate and the limiting clamping groove are matched, when the steel bracket bottom plate and the embedded steel plate at the beam bottom are connected, the two can be quickly aligned and preliminarily limited, and the subsequent welding after the steel key plate is inserted is facilitated, and manual support is not required. DRAWINGS
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiment or prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.
[0017] Figure 1 is a schematic view of the square column connecting node three-dimensional structure according to an embodiment of the present application;
[0018] Figure 2 is Figure 1 the bottom view of the square column connecting node three-dimensional structure in the embodiment shown in the figure;
[0019] Figure 3 is Figure 1 the top view of the square column connecting node structure in the embodiment shown in the figure;
[0020] Figure 4 is Figure 1The schematic view of the cross section of the square column connecting node structure in the embodiment.
[0021] The meanings of the reference numerals in the drawing: 1, prefabricated steel beam pipe; 2, beam bottom embedded steel plate; 3, steel bracket bottom plate; 4, welding groove; 5, steel key plate; 6, lower stiffening plate; 7, upper stiffening plate; 8, concrete reinforced column; 9, limiting clamping plate; 10, limiting clamping groove. DETAILED DESCRIPTION
[0022] In order to make the application purposes, features and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the embodiments described below are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0023] With reference to Figure 1 , Figure 2 and Figure 4 , a steel bracket and prefabricated reinforced concrete beam bottom square column connecting node, comprising a prefabricated steel beam pipe 1 and a beam bottom embedded steel plate 2, the prefabricated steel beam pipe 1 is fixed with the beam bottom embedded steel plate 2 on each side of the outer surface, the bottom of each beam bottom embedded steel plate 2 is provided with a steel bracket bottom plate 3, a plurality of welding grooves 4 are equidistantly arranged in each group of beam bottom embedded steel plate 2 and steel bracket bottom plate 3, a steel key plate 5 is inserted into each welding groove 4, each steel key plate 5 is welded and fixed in the welding groove 4, the top of each steel key plate 5 is provided in a trapezoidal shape, and the thickness of each steel key plate 5 is greater than the thickness of the beam bottom embedded steel plate 2 and the steel bracket bottom plate 3.
[0024] Specifically, when the steel bracket bottom plate 3 is constructed, the steel bracket bottom plate 3 is aligned with the beam bottom embedded steel plate 2, so that the welding grooves 4 in the beam bottom embedded steel plate 2 and the steel bracket bottom plate 3 are aligned, after alignment, the steel key plate 5 is inserted into the welding groove 4, after insertion, the steel key plate 5 is welded and fixed with the welding groove 4 by means of bevel welding, so that the steel bracket bottom plate 3 and the beam bottom embedded steel plate 2 can be welded and fixed.
[0025] As an optimization scheme, as Figure 3 and Figure 4As shown, the top surface of the embedded steel plate 2 at both ends of each beam bottom is welded and fixed with an upper stiffening plate 7, the side edge of the upper stiffening plate 7 is welded and fixed on the side wall of the prefabricated steel beam pipe 1, the outer surface of the prefabricated steel beam pipe 1 between every two upper stiffening plates 7 and the top surface of the embedded steel plate 2 are both poured with a concrete reinforcing column 8, the top surface of the embedded steel plate 2 at the side edge of each upper stiffening plate 7 is provided with a limiting clamping groove 10, the limiting clamping groove 10 is inserted with a limiting clamping plate 9, the bottom surface of the limiting clamping plate 9 is fixed on the top surface of the steel bracket bottom plate 3, the limiting clamping plate 9 and the limiting clamping groove 10 are both arranged in an L shape transversely, which facilitates the hanging of the steel bracket bottom plate 3 on the embedded steel plate 2 of the beam bottom, and can quickly align the steel bracket bottom plate 3 with the embedded steel plate 2 of the beam bottom, the side edge of each steel bracket bottom plate 3 and the lower stiffening plate 6 is welded and fixed on the outer surface of the prefabricated steel beam pipe 1, the bottom surface of the embedded steel plate 2 at the side edge of each welding groove 4 is fixed with a lower stiffening plate 6, and each lower stiffening plate 6 is arranged in a right triangle shape, which cooperates with the upper stiffening plate 7 to support and reinforce the steel bracket bottom plate 3 and the embedded steel plate 2 of the beam bottom after welding.
[0026] Specifically, when the steel bracket bottom plate 3 needs to be aligned with the embedded steel plate 2 of the beam bottom, the limiting clamping plate 9 is inserted into the limiting clamping groove 10, and then the steel bracket bottom plate 3 is aligned with the welding groove 4 in the embedded steel plate 2 of the beam bottom, and after the welding groove 4 is welded and fixed with the steel key plate 5, the upper stiffening plate 7 and the lower stiffening plate 6 are welded and fixed on the outer surface of the prefabricated steel beam pipe 1.
[0027] It is apparent for those skilled in the art that the present application is not limited to the details of the foregoing exemplary embodiments, and the present application can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the foregoing description, and all changes falling within the meaning and range of equivalency of the elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims to the corresponding parts of the specification.
[0028] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than limit them; although the foregoing detailed description is made with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims
1. A steel corbel-to-precast reinforced concrete beam bottom square column connection joint, characterized in that: The utility model provides a prefabricated steel beam pipe (1) and beam bottom embedded steel plate (2) are included, prefabricated steel beam pipe (1) every side outer surface is fixed with beam bottom embedded steel plate (2), every beam bottom embedded steel plate (2) bottom is provided with steel corbel bottom plate (3), every group beam bottom embedded steel plate (2) and steel corbel bottom plate (3) inside are opened with a plurality of welding grooves (4) at equal intervals, every welding groove (4) inside is inserted with steel key plate (5), every steel key plate (5) is welded and fixed in welding groove (4) inside.
2. The steel corbel-to-precast reinforced concrete beam bottom square column connection joint according to claim 1, characterized in that: Every beam bottom embedded steel plate (2) top surface both ends are welded and fixed with upper stiffened plate (7), and the side of upper stiffened plate (7) is welded and fixed on the side wall of prefabricated steel beam pipe (1).
3. The steel corbel-to-precast reinforced concrete beam bottom square column connection joint according to claim 1, characterized in that: The bottom surface of the beam bottom embedded steel plate (2) on the side of each welding groove (4) is fixed with a lower stiffened plate (6), and each lower stiffened plate (6) is arranged as a right triangle.
4. The steel corbel-to-precast reinforced concrete beam bottom square column connection joint of claim 1, wherein: The top of each steel key plate (5) is arranged as a trapezoid, and the thickness of each steel key plate (5) is greater than the thickness of the beam bottom embedded steel plate (2) and the steel corbel bottom plate (3).
5. The steel corbel-to-precast reinforced concrete beam bottom square column connection joint of claim 2, wherein: The outer surface of the prefabricated steel beam pipe (1) and the top surface of the beam bottom embedded steel plate (2) between every two upper stiffened plates (7) are poured with a concrete reinforcing column (8), and the side of each steel corbel bottom plate (3) and lower stiffened plate (6) is welded and fixed on the outer surface of the prefabricated steel beam pipe (1).
6. The steel corbel-to-precast reinforced concrete beam bottom square column connection joint of claim 2, wherein: The top surface of the beam bottom embedded steel plate (2) on the side of each upper stiffened plate (7) is provided with a limiting clamping groove (10), and the limiting clamping groove (10) is inserted with a limiting clamping plate (9).
7. The steel corbel-to-precast reinforced concrete beam bottom square column connection joint according to claim 6, characterized in that: The bottom surface of each limiting clamping plate (9) is fixed on the top surface of the steel corbel bottom plate (3), and each limiting clamping plate (9) and limiting clamping groove (10) is arranged as an L-shaped transversely placed.