A steel connecting structure of a steel column with dense steel bars on a beam

Abstract

The utility model discloses a reinforced connecting structure of beam skin intensive steel bar through stiff steel column, and the stiff steel column is formed by horizontal I-shaped steel column and longitudinal I-shaped steel column, forms 4 small areas, and this structure includes 4 stiffening plates in 4 small areas, and each stiffening plate is fixed with the beam skin steel bar position of stiff steel column, and the outside of each stiffening plate is fixed with L type outer frame between the flange plate of horizontal I-shaped steel column and the flange plate of longitudinal I-shaped steel column, and the L type outer frame is fixed with the flange plate of adjacent horizontal I-shaped steel column and the flange plate of longitudinal I-shaped steel column, and the four L type outer frames and stiff steel column constitute the rectangular outer frame as a whole, and the outside of rectangular outer frame is fixed with the steel sleeve in interval, and the steel sleeve on the adjacent two stiff steel columns is one-to-one corresponding and is provided with connecting steel bar between the corresponding two steel sleeves, solves the problem that the beam skin intensive steel bar is difficult to pass through the web or the outer winding type steel through connection according to the traditional method, reduces the construction procedure, improves the construction efficiency, and ensures the construction quality.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a steel reinforcement connection structure for a beam-column joint with dense reinforcing bars on the top of the beam. Background Technology

[0002] Stiffened columns achieve a significant performance leap through material composite effects, becoming a key technology in modern civil engineering to meet the challenges of large spans and high-intensity seismic resistance. However, in actual construction, beam-column joints are complex, with dense reinforcement and difficulties in constructing through-reinforcement through the steel profile. This application solves the problem of connecting the dense upper reinforcement at the beam end under tension to the steel profile under normal working conditions, avoiding the traditional methods of perforating and wrapping the steel profile web, while ensuring that the tensile strength meets the requirements. Utility Model Content

[0003] This utility model addresses the problems and shortcomings of existing technologies by providing a novel steel reinforcement connection structure for densely reinforced steel columns at the top of beams in beam-column joints, thus solving the problem of densely reinforced steel columns at the top of beams in the first layer.

[0004] The present invention solves the above-mentioned technical problems through the following technical solution:

[0005] This utility model provides a rebar connection structure for densely reinforced steel bars on the top surface of beams passing through stiffening steel columns. The stiffening steel columns are composed of transverse and longitudinal I-beams in a cross shape, forming four small areas. The rebar connection structure includes four stiffening plates placed within these four small areas. Each stiffening plate is fixed to the position of the top surface reinforcement of the stiffening steel column. An L-shaped outer frame is fixed to the outer side of each stiffening plate, between the flanges of the transverse and longitudinal I-beams. The L-shaped outer frame is fixed to the flanges of adjacent transverse and longitudinal I-beams. The four L-shaped outer frames and the stiffening steel columns together form a rectangular outer frame. Rebar sleeves are fixed at intervals around the outer edge of the rectangular outer frame. The rebar sleeves on adjacent stiffening steel columns correspond one-to-one, and connecting rebars pass through the corresponding rebar sleeves.

[0006] The positive and progressive effects of this utility model are as follows:

[0007] This invention solves the problem that dense steel bars on the top of beams are difficult to pass through the web or be connected to the outer steel section using traditional methods, reducing construction steps, improving construction efficiency, and ensuring construction quality. Attached Figure Description

[0008] Figure 1 This is a plan view of the connection node between the rigid steel column and the reinforcing bar, which is a preferred embodiment of the present invention.

[0009] Figure 2 for Figure 1 Sectional view of AA.

[0010] Figure 3 This is a front elevation view of the connection node between the rigid steel column and the reinforcing bar, which is a preferred embodiment of this utility model.

[0011] Figure 4 This is a side elevation view of the connection node between the rigid steel column and the reinforcing bar, which is a preferred embodiment of this utility model.

[0012] Figure 5 This is a magnified view of the connecting nodes. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0014] like Figure 1-5 As shown, this embodiment provides a rebar connection structure for dense upper rebars penetrating stiffened steel columns. This is a rebar connection structure that solves the problem of dense upper rebars penetrating steel structures during the construction of beam-column joints at stiffened columns. Specifically, it is a structure that changes the original rebars from being continuous at the joint position. A thickened and enlarged stiffening plate is set at the original rebar penetration point, and an "outer frame" is welded around the stiffening plate to provide welding surfaces for the rebar sleeves at both ends. The rebar connection structure is then mechanically connected through the sleeves.

[0015] The specific structure is as follows: The stiffened steel column 1 is composed of a cross-shaped transverse I-beam column 11 and a longitudinal I-beam column 12, forming four small areas. This steel reinforcement connection structure includes four stiffening plates 2 placed within the four small areas. Each stiffening plate 2 is welded to the upper surface steel reinforcement of the beam of the stiffened steel column 1. The corners of each stiffening plate 2 are rounded with a diameter of 100mm or cut with an isosceles triangle angle with a side length of 35mm. An L-shaped outer frame 3 is welded to the outside of each stiffening plate 2 and between the flange plate 111 of the transverse I-beam column 11 and the flange plate 121 of the longitudinal I-beam column 12. Furthermore, the L-shaped outer frame 3 is welded to the flange plate 111 of the adjacent transverse I-beam column 11 and the flange plate 121 of the longitudinal I-beam column 12. The horizontal center plane of each L-shaped outer frame 3 is aligned with the horizontal center plane of the corresponding stiffening plate 1. The four L-shaped outer frames 3 and the stiffening steel columns 1 together form a rectangular outer frame. A steel sleeve 4 is welded at intervals around the outer side of the rectangular outer frame. The steel sleeves 4 on two adjacent stiffening steel columns 1 correspond one-to-one, and connecting steel bars 5 are inserted between the two corresponding steel sleeves. The axis of each steel sleeve 4 is aligned with the horizontal center plane of the corresponding stiffening plate 2.

[0016] This rebar connection structure mainly involves breaking the original continuous rebar, setting up a stiffening plate 2, an L-shaped outer frame 3, and a rebar sleeve 4. The tensile force transmission path of the rebar is changed to rebar 5 - rebar sleeve 4 - L-shaped outer frame 3 - stiffening plate 2 - stiffened steel column 1 - stiffening plate 2 - L-shaped outer frame 3 - rebar sleeve 4 - rebar 5. This avoids the traditional practice of passing through the web of the steel section and wrapping around the outer steel column while maintaining the tensile strength of the beam rebar.

[0017] In this embodiment, there are a total of 4 stiffening plates 2. The size of each plate is determined according to the actual steel profile size. The corners are rounded with a diameter of 100mm or an isosceles triangle with a side length of 35mm. The outer frame is broken at the flange of the stiffened steel column 1 and divided into 4 corners. Each corner is then formed by welding two plates to form an L-shaped outer frame 3. All steel bar types and the spacing in the four directions are arranged according to the actual distance in the design drawings.

[0018] The welding quality of the rebar sleeve 4 to the flange of the stiffened steel column 1, the welding quality of the rebar sleeve 4 to the L-shaped outer frame 3, the welding quality of the L-shaped outer frame 3 to the stiffened steel column 1, the welding quality of the L-shaped outer frame 3 to the stiffening plate 2, and the welding quality of the stiffening plate 2 to the stiffened steel column 1 are all important. Since the L-shaped outer frame 3, stiffening plate 2, and stiffened steel column 1 need to play the role of transferring the stress of the rebar, all of the above welds need to be full penetration welds, and the weld quality must be strictly controlled on site.

[0019] The axis of each steel bar sleeve 4 must be aligned with the horizontal center plane of the corresponding stiffening plate 2. The axial force of the steel bar acting on the outer frame and stiffening plate 2 is still an axial force, and there is no eccentric force.

[0020] In this embodiment, at the location of the upper steel reinforcement of the beam passing through the stiffened steel column 1, four stiffening plates 2 are welded to the stiffened steel column 1. The axis of each steel reinforcement sleeve 4 is aligned with the horizontal center plane of the corresponding stiffening plate 2. The axial force of the steel reinforcement acting on the stiffening plate 2 and the L-shaped outer frame 3 is still an axial force, minimizing eccentric force. After welding, the four corner L-shaped outer frames 3 are welded to the stiffening plates 2. The L-shaped outer frame 3 itself is made of two steel plates welded together. After welding with the stiffening plate 2, the excess edge is cut off, and then the L-shaped outer frame 3 is welded to the flange plate of the stiffened steel column 1. The horizontal center plane of each L-shaped outer frame 3 is aligned with the horizontal center plane of the corresponding stiffening plate 1. Finally, the steel reinforcement sleeve 4 is welded to the flange plate of the stiffened steel column 1 and the L-shaped outer frame 3. All the above welds need to be full penetration welds, and the weld quality must be strictly controlled on site.

[0021] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A reinforcing steel connection structure for densely reinforced steel bars on a beam penetrating a stiffening steel column, wherein the stiffening steel column is composed of transverse and longitudinal H-beams arranged in a cross shape, forming four small areas, characterized in that... The steel reinforcement connection structure includes four stiffening plates placed in four small areas. Each stiffening plate is fixed to the upper surface of the beam reinforcement of the stiffened steel column. An L-shaped outer frame is fixed on the outer side of each stiffening plate between the flange plates of the transverse and longitudinal I-beams. The L-shaped outer frame is fixed to the flange plates of the adjacent transverse and longitudinal I-beams. The four L-shaped outer frames and the stiffened steel columns together form a rectangular outer frame. Steel sleeves are fixed at intervals around the outer side of the rectangular outer frame. The steel sleeves on two adjacent stiffened steel columns correspond one-to-one, and connecting steel bars are passed through the corresponding two steel sleeves.

2. The steel reinforcement connection structure of the beam-top densely reinforced through-stiffening steel column as described in claim 1, characterized in that, The corners of each stiffening plate are rounded or areosceles triangular.

3. The steel reinforcement connection structure of the beam-top densely reinforced through-stiffening steel column as described in claim 2, characterized in that, The corners of each stiffening plate are rounded with a diameter of 100mm or cut into isosceles triangles with a side length of 35mm.

4. The steel reinforcement connection structure of the beam-top densely reinforced through-stiffening steel column as described in claim 1, characterized in that, The horizontal center plane of each L-shaped outer frame is aligned with the horizontal center plane of the corresponding stiffening plate.

5. The steel reinforcement connection structure of the beam-top densely reinforced through-stiffening steel column as described in claim 1, characterized in that, The axis of each steel bar sleeve is aligned with the horizontal center plane of the corresponding stiffening plate.

6. The steel reinforcement connection structure of the beam-top densely reinforced through-stiffening steel column as described in claim 1, characterized in that, An L-shaped outer frame is welded to the outer side of each stiffening plate and between the flange plates of the transverse I-beam and the longitudinal I-beam, and the L-shaped outer frame is welded to the flange plates of the adjacent transverse I-beam and the longitudinal I-beam.

7. The steel reinforcement connection structure of the beam-top densely reinforced through-stiffening steel column as described in claim 1, characterized in that, The outer edge of the rectangular outer frame is welded with steel sleeves at intervals.

8. The steel reinforcement connection structure of the beam-top densely reinforced through-stiffening steel column as described in claim 1, characterized in that, Each of the stiffening plates is welded to the top layer of the reinforcing steel bars in the stiffened steel column.

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