H-shaped column and reinforced concrete beam connecting structure and construction method thereof

Abstract

The application discloses a connecting structure of an H-shaped column and a reinforced concrete beam and a construction method thereof, and relates to the technical field of structure engineering, which comprises an H-shaped column and a reinforced concrete beam; the outer side of the H-shaped column is connected with a left limiting connecting piece and a right limiting connecting piece; a steel plate clamping groove is fixed on the outer side wall of the flange plate of the H-shaped column; the bottom surface of the left limiting connecting piece and the right limiting connecting piece is fixed with a lower end steel plate which is inserted into the steel plate clamping groove; the left limiting connecting piece and the right limiting connecting piece are formed with cavities which are inserted with the flange plate of the H-shaped column; the top and the bottom of the left limiting connecting piece and the right limiting connecting piece are fixed with steel anchor fasteners; the part of the left limiting connecting piece and the right limiting connecting piece which is located on the outer side of the flange plate of the H-shaped column is fastened and connected through bolts; the reinforced concrete beam is connected on the outer side of the flange plate of the H-shaped column, and the beam longitudinal reinforcement of the reinforced concrete beam is fastened and connected with the steel anchor fasteners. The construction method avoids on-site welding work, and greatly improves the construction efficiency of the node structure.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of structural engineering, and more particularly to a connecting structure of an H-shaped column and a reinforced concrete beam and a construction method thereof. BACKGROUND

[0002] With the development of the construction industry, traditional concrete structures and steel structures have been unable to meet the various needs of society for buildings. In order to meet various needs, steel-concrete composite structures have emerged and rapidly developed. Steel-concrete composite structures combine the advantages of two materials and exhibit a series of advantages, and are deeply loved by the construction industry. As a common structural column of a steel-concrete structure, the connection of an H-shaped column and a reinforced concrete beam is relatively frequent in a steel-concrete composite structure, and reasonable design thereof is the key to improving the seismic performance of a steel-concrete composite structure and is also a difficulty.

[0003] Common connecting nodes of an H-shaped column and a reinforced concrete beam include a reinforcing bar penetrating type, an external steel corbel type, and a short steel type. The reinforcing bar penetrating type node causes great damage to the H-shaped column, and it is difficult to ensure the original stiffness of the H-shaped column. The external steel corbel type or the short steel type needs to weld a steel corbel or a short steel on the outer wall of the flange plate of the H-shaped column, and the welding amount is large, the on-site construction difficulty is high, and the welding quality is difficult to guarantee.

[0004] Therefore, how to provide a node structure form suitable for the connection of an H-shaped column and a reinforced concrete beam, which is convenient to construct and reliable in connection, is a problem that those skilled in the art need to solve urgently. SUMMARY

[0005] In view of the above problems, the present application provides a connecting structure of an H-shaped column and a reinforced concrete beam and a construction method thereof.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0007] A connecting structure of an H-shaped column and a reinforced concrete beam, comprising: an H-shaped column and a reinforced concrete beam; the outer side of the H-shaped column is divided into two parts by the web as a symmetrical division surface, and a left limiting connecting piece and a right limiting connecting piece are connected to the two parts respectively;

[0008] A steel plate slot is fixed on the outer side wall of the flange plate of the H-shaped column, a lower end steel plate of the steel plate slot is fixed on the bottom surface of the left limiting connecting piece and the right limiting connecting piece, and cavities for inserting the flange plate of the H-shaped column are formed in the left limiting connecting piece and the right limiting connecting piece; steel bar anchors are fixed on the top and bottom of the left limiting connecting piece and the right limiting connecting piece; and the part of the left limiting connecting piece and the right limiting connecting piece located on the outer side of the flange plate of the H-shaped column is connected by bolts;

[0009] The reinforced concrete beam is connected outside the flange plate of the H-shaped column, and the beam longitudinal reinforcement of the reinforced concrete beam is fastened and connected with the steel anchor.

[0010] Preferably, in the connection structure of the H-shaped column and the reinforced concrete beam, the outer wall of the flange plate of the H-shaped column is fixed with a connecting steel plate, the connecting steel plate is clamped between the left limiting connector and the right limiting connector, and the bolt is fastened and connected through the left limiting connector, the connecting steel plate and the right limiting connector.

[0011] Preferably, in the connection structure of the H-shaped column and the reinforced concrete beam, the left limiting connector and the right limiting connector are fastened and connected through the bolt outside the position where the cavity is inserted with the flange plate of the H-shaped column.

[0012] Preferably, in the connection structure of the H-shaped column and the reinforced concrete beam, the fastening structure of the bolt adopts a double-headed bolt structure.

[0013] Preferably, in the connection structure of the H-shaped column and the reinforced concrete beam, the H-shaped column is an H-shaped column or an H-shaped steel concrete column.

[0014] Preferably, in the connection structure of the H-shaped column and the reinforced concrete beam, the width of the clamping groove cavity of the steel plate clamping groove is not less than the width of the lower end steel plate.

[0015] Preferably, in the connection structure of the H-shaped column and the reinforced concrete beam, the width of the cavity is not less than the thickness of the flange plate of the H-shaped column, and the part greater than the thickness of the flange plate of the H-shaped column is not more than 5mm.

[0016] Preferably, in the connection structure of the H-shaped column and the reinforced concrete beam, the left limiting connector and the right limiting connector extend outwardly to the flange plate of the H-shaped column with a vertical steel plate, the vertical steel plate is used for fastening and connecting between the left limiting connector and the right limiting connector, the top edge and the bottom edge of the vertical steel plate are respectively fixed with an upper steel anchor plate and a lower steel anchor plate, and the upper steel anchor plate and the lower steel anchor plate are used for fixing the steel anchor.

[0017] Preferably, in the connection structure of the H-shaped column and the reinforced concrete beam, the connecting angle of the upper steel anchor plate and the lower steel anchor plate with the left limiting connector or the right limiting connector is rounded.

[0018] The application also provides a construction method of the connection structure of the H-shaped column and the reinforced concrete beam, which specifically comprises the following steps:

[0019] S1, in the node area, the outer wall of the flange plate on the left and right sides of the H-shaped column is welded with a steel plate clamping groove, and the work of welding the steel plate clamping groove on the flange plate is completed before leaving the factory;

[0020] S2, the left and right limiting connecting pieces are placed on the H-shaped column, the cavities of the left and right limiting connecting pieces correspond to the positions of the flange plates of the H-shaped column, and the lower end steel plates are inserted into the steel plate clamping grooves;

[0021] S3, the left and right limiting connecting pieces are connected and connected with the H-shaped column;

[0022] S4, the beam longitudinal reinforcement of the reinforced concrete beam is fixed with the steel reinforcement anchor, and the node area concrete and the beam inner concrete are poured to form a complete beam-column connecting structure.

[0023] Through the above technical scheme, compared with the prior art, the application provides a connecting structure of an H-shaped column and a reinforced concrete beam and a construction method thereof, which has the following beneficial effects:

[0024] In the implementation process of the connecting structure of the H-shaped column and the reinforced concrete beam, the lower end of the left and right limiting connecting pieces is inserted into the steel plate clamping groove, the cavity of the upper end is sleeved on the flange plate of the H-shaped column, the left and right limiting connecting pieces are fixed on the H-shaped column through the stud bolts, the vertical steel plates of the left and right limiting connecting pieces are connected through the stud bolts, and the beam longitudinal reinforcement is anchored on the upper and lower steel reinforcement anchor plates. This construction method avoids on-site welding work and greatly improves the construction efficiency of the node structure.

[0025] In the application, the left and right limiting connecting pieces are fixed on the flange plate of the H-shaped column through stud bolts, or the vertical steel plates of the left and right limiting connecting pieces are fixed on the connecting steel plate on the outer wall of the flange plate of the H-shaped column through stud bolts. These two ways make the left and right limiting connecting pieces firmly fixed on the H-shaped column, so that the left and right limiting connecting pieces can reliably transmit the beam end bending moment and shear force, and the node shear bearing capacity and bending bearing capacity are higher. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only embodiments of the application, and those skilled in the art can obtain other drawings according to the provided drawings without creative labor.

[0027] Figure 1 The drawing is a connecting node structure diagram of embodiment 1 provided by the application;

[0028] Figure 2 The attached figure is a diagram of the connection node structure of Embodiment 2 provided by the present invention;

[0029] Figure 3 The attached figure is provided by the present invention. Figure 1 Schematic diagram of the cross-sectional structure along line A-A;

[0030] Figure 4 The attached figure is provided by the present invention. Figure 2 Schematic diagram of the cross-sectional structure along line A-A;

[0031] Figure 5 The attached figure is provided by the present invention. Figure 1 Schematic diagram of the B-B cross-section structure;

[0032] Figure 6 The attached figure is provided by the present invention. Figure 2 Schematic diagram of the B-B cross-section structure;

[0033] Figure 7 The attached figure is a front view structural diagram of the left limiting connector in Embodiment 1 of the present invention, in which a vertical steel plate, an upper steel bar anchor plate, and a lower steel bar anchor plate are welded together.

[0034] Figure 8 The attached figure is a front view structural schematic diagram of the left limiting connector in Embodiment 2 of the present invention, in which a horizontal steel plate, a vertical steel plate, an upper steel bar anchor plate, and a lower steel bar anchor plate are welded together.

[0035] Figure 9 The attached figure is a top view of the left limiting connector according to Embodiment 1 of the present invention;

[0036] Figure 10 The attached figure is provided by the present invention. Figure 2 A top view of the structure when the left and middle limiting connectors are welded with vertical steel plates, upper steel bar anchor plates, and lower steel bar anchor plates;

[0037] Figure 11 The attached figure is a front view schematic diagram of the left limiting connector of Embodiment 1 provided by the present invention;

[0038] Figure 12 The attached figure is a front view schematic diagram of the left limiting connector of Embodiment 2 provided by the present invention;

[0039] Figure 13 The attached figure is a top view of the left limiting connector in the connection structure provided by the present invention;

[0040] Figure 14 The attached figure is a schematic diagram of the steel plate slot in the connection structure provided by the present invention.

[0041] in:

[0042] 1-H type column; 2-steel plate clamping groove; 3-transverse steel plate; 4-bolt anchor head; 5-steel anchor; 6-lower steel anchor plate; 7-double head bolt; 8-vertical steel plate; 9-beam longitudinal reinforcement; 10-beam stirrup; 11-upper steel anchor plate; 12.1-left limiting connecting piece; 12.2-right limiting connecting piece; 13-bolt through hole; 14-connecting steel plate; 15-concrete cover; 17-reinforced concrete beam; 18-clamping groove cavity; 19-cavity; 20-round corner. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. 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.

[0044] The embodiments of the present application disclose a connecting structure of H type column and reinforced concrete beam, comprising: H type column 1 and reinforced concrete beam 17; the outer side of the H type column 1 is divided into two parts by the web as the symmetrical division surface, and the two parts are respectively connected with the left limiting connecting piece 12.1 and the right limiting connecting piece 12.2;

[0045] The outer side wall of the flange plate of the H type column 1 is fixed with a steel plate clamping groove 2, the bottom surface of the left limiting connecting piece 12.1 and the right limiting connecting piece 12.2 is fixed with a lower end steel plate inserted into the steel plate clamping groove 2, and the left limiting connecting piece 12.1 and the right limiting connecting piece 12.2 form a cavity 19 inserted with the flange plate of the H type column 1; the top and bottom of the left limiting connecting piece 12.1 and the right limiting connecting piece 12.2 are fixed with steel anchors 5; the part of the left limiting connecting piece 12.1 and the right limiting connecting piece 12.2 located on the outer side of the flange plate of the H type column 1 is connected by bolt fastening;

[0046] The reinforced concrete beam 17 is connected on the outer side of the flange plate of the H type column 1, and the beam longitudinal reinforcement 9 of the reinforced concrete beam 17 is fastened with the steel anchor 5. EMBODIMENT

[0047] Referring to the drawings of the accompanying Figure 1 , the accompanying Figure 3 , the accompanying Figure 5 , the accompanying Figure 7 , the accompanying Figure 9 , the accompanying Figure 11 , the accompanying Figure 13 and the accompanying Figure 14 , the two vertical edges and the lower bottom edge of the steel plate clamping groove 2 are welded on the outer wall of the flange plate of the H type column 1, and the opening side faces the H type column 1;

[0048] The reinforced concrete beam comprises beam longitudinal reinforcement 9 and beam stirrup 10.

[0049] Vertical steel plates 8 are welded on the left and right sides of the left limiting connecting piece 12.1 and the right limiting connecting piece 12.2; an upper steel bar anchoring plate 11 is welded on the upper end of the vertical steel plate, and a lower steel bar anchoring plate 6 is welded on the lower end of the vertical steel plate; a cavity 19 is arranged in the middle of the left limiting connecting piece 12.1 and the right limiting connecting piece 12.2.

[0050] The lower end steel plate of the left limiting connecting piece 12.1 and the right limiting connecting piece 12.2 is inserted into the steel plate clamping groove 2; the vertical steel plate 8 of the left limiting connecting piece 12.1 is connected with the vertical steel plate 8 of the right limiting connecting piece 12.2 through the stud bolt 7.

[0051] The upper row of beam longitudinal reinforcement 9 of the reinforced concrete beam 17 is fixed by the bolt anchor head 4 after passing through the steel bar anchor 5 on the upper steel bar anchoring plate 11, and the lower row of beam longitudinal reinforcement 9 is fixed by the bolt anchor head 4 after passing through the steel bar anchor 5 on the lower steel bar anchoring plate 6.

[0052] In order to further optimize the above technical scheme, the width of the clamping groove cavity 18 of the steel plate clamping groove 2 is not less than the width of the lower end steel plate of the left limiting connecting piece 12.1 and the right limiting connecting piece 12.2.

[0053] In order to further optimize the above technical scheme, the width of the cavity 19 of the left limiting connecting piece 12.1 and the right limiting connecting piece 12.2 corresponds to the thickness of the flange plate of the H-shaped column 1, which satisfies that the width is not less than the thickness of the flange plate of the H-shaped column 1, and the part greater than the thickness of the flange plate of the H-shaped column 1 cannot exceed 5 mm.

[0054] In order to further optimize the above technical scheme, one end of the upper steel bar anchoring plate 11 is welded on the upper end of the vertical steel plate 8, and the adjacent end is welded on the outer wall of the limiting connecting piece and is rounded 20; one end of the lower steel bar anchoring plate 6 is welded on the lower end of the vertical steel plate 8, and the adjacent end is welded on the outer wall of the limiting connecting piece and is rounded 20.

[0055] In the embodiment, the connecting steel plate 14 is welded on the outer wall of the flange plate of the H-shaped column 1; the bolt through hole 13 is arranged on the surface of the connecting steel plate 14, and the position of the bolt through hole 13 corresponds to the bolt through hole 13 on the surface of the vertical steel plate 8; the vertical steel plate 8 of the left limiting connecting piece 12.1 is connected with the vertical steel plate 8 of the right limiting connecting piece 12.2 through the stud bolt 7 and the connecting steel plate 14; the work of welding the connecting steel plate 14 on the outer wall of the flange plate of the H-shaped column 1 is completed before leaving the factory.

[0056] The construction method of the embodiment is as follows:

[0057] Step one: in the node area, the steel plate clamping groove 2 and the connecting steel plate 14 are welded on the outer wall of the flange plate of the H-shaped column 1 on the left and right sides; the work of welding the steel plate clamping groove 2 and the connecting steel plate 14 on the flange plate of the H-shaped column 1 is completed before leaving the factory.

[0058] Step two: Place the left limiting connector 12.1 and the right limiting connector 12.2 on the H-shaped column 1, and the cavities 19 at the upper end of the left limiting connector 12.1 and the right limiting connector 12.2 correspond to the position of the flange plate of the H-shaped column 1, and the lower end steel plate is inserted into the steel plate clamping groove 2;

[0059] Step three: Tighten the vertical steel plate 8 of the left limiting connector 12.1, the vertical steel plate 8 of the right limiting connector 12.2 and the connecting steel plate 14 by the stud bolt 7;

[0060] Step four: After the upper row of beam longitudinal reinforcement 9 of the reinforced concrete beam 17 passes through the steel bar anchor 5 on the upper steel bar anchoring plate 11, it is fixed by the bolt anchor head 4, and the lower row of beam longitudinal reinforcement 9 passes through the steel bar anchor 5 on the lower steel bar anchoring plate 6, and is fixed by the bolt anchor head 4, and the post-cast joint area concrete and the beam concrete form a concrete protection layer 15, which constitutes a complete beam-column connection structure. Embodiment

[0061] The difference between this embodiment and embodiment 1 is that the connecting steel plate 14 is not arranged.

[0062] Referring to the accompanying drawings Figure 2 , the accompanying drawings Figure 4 , the accompanying drawings Figure 6 , the accompanying drawings Figure 8 , the accompanying drawings Figure 10 , the accompanying drawings Figure 12 , the accompanying drawings Figure 13 and the accompanying drawings Figure 14 In this embodiment, bolt through holes 13 are arranged on the flange plate of the H-shaped column 1, which correspond to the bolt through holes 13 on the left limiting connector 12.1 and the right limiting connector 12.2; the middle part of the left limiting connector 12.1 and the right limiting connector 12.2 is welded with a transverse steel plate 3 corresponding to the position of the upper steel bar anchoring plate 11 and the lower steel bar anchoring plate 6; the left limiting connector 12.1 and the right limiting connector 12.2 are fixed by the flange plate of the H-shaped column 1 through the stud bolt 7; the transverse steel plate 3 and the bolt through hole 13 are arranged before leaving the factory.

[0063] The construction method of this embodiment is as follows:

[0064] Step one: In the joint area, the steel plate clamping groove 2 is welded on the outer wall of the flange plate of the H-shaped column 1 on both sides, and the work of welding the steel plate clamping groove 2 on the flange plate of the H-shaped column 1 is completed before leaving the factory;

[0065] Step two: Place the left limiting connector 12.1 and the right limiting connector 12.2 on the H-shaped column 1, and the cavities 19 at the upper end of the left limiting connector 12.1 and the right limiting connector 12.2 correspond to the position of the flange plate of the H-shaped column 1, and the lower end steel plate is inserted into the steel plate clamping groove 2;

[0066] Step three: connect the vertical steel plate 8 of the left limiting connector 12.1 with the vertical steel plate 8 of the right limiting connector 12.2 through the stud bolt 7, and fix the left limiting connector 12.1 and the right limiting connector 12.2 with the flange plate of the H-shaped column 1 through the stud bolt 7;

[0067] Step four: fix the upper row of beam longitudinal reinforcement 9 of the reinforced concrete beam 17 through the steel bar anchor 5 on the upper steel bar anchoring plate 11 with the bolt anchor head 4, fix the lower row of beam longitudinal reinforcement 9 through the steel bar anchor 5 on the lower steel bar anchoring plate 6 with the bolt anchor head 4, and form the concrete protection layer 15 by pouring the concrete in the node area and the beam, thereby forming the complete beam-column connection structure.

[0068] The various embodiments are described in the present specification by progressive stages, and each embodiment focuses on the difference from other embodiments. The same or similar parts between the various embodiments can be referred to each other. For the device disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple, and the relevant part can be referred to the method part.

[0069] The above description of disclosed embodiments enables those skilled in the art to carry out or use the present application. Various modifications to the embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A connection structure between an H-shaped column and a reinforced concrete beam, comprising: H-shaped column (1) and reinforced concrete beam (17); characterized in that the outer side of the H-shaped column (1) is connected with a left limiting connector (12.1) and a right limiting connector (12.2) respectively with its web as the symmetrical dividing plane. A steel plate slot (2) is fixed on the outer wall of the flange plate of the H-shaped column (1). The bottom surfaces of the left limiting connector (12.1) and the right limiting connector (12.2) are fixed with lower steel plates that are inserted into the steel plate slot (2). The left limiting connector (12.1) and the right limiting connector (12.2) form cavities (19) that are inserted into the flange plate of the H-shaped column (1). The top and bottom of the left limiting connector (12.1) and the right limiting connector (12.2) are both fixed with steel bar anchors (5). The parts of the left limiting connector (12.1) and the right limiting connector (12.2) located on the outer side of the flange plate of the H-shaped column (1) are fastened together by bolts. The reinforced concrete beam (17) is connected to the outside of the flange plate of the H-shaped column (1), and the longitudinal reinforcement (9) of the reinforced concrete beam (17) is fastened to the reinforcement anchor (5). The left limiting connector (12.1) and the right limiting connector (12.2) extend vertical steel plates (8) to the outside of the flange of the H-shaped column (1). The vertical steel plates (8) are used for fastening the connection between the left limiting connector (12.1) and the right limiting connector (12.2). The top edge and bottom edge of the vertical steel plates (8) are respectively fixed with an upper steel bar anchor plate (11) and a lower steel bar anchor plate (6). The upper steel bar anchor plate (11) and the lower steel bar anchor plate (6) are used to fix the steel bar anchor (5).

2. The connection structure between an H-shaped column and a reinforced concrete beam according to claim 1, characterized in that, A connecting steel plate (14) is fixed to the outer wall of the flange of the H-shaped column (1). The connecting steel plate (14) is clamped between the left limiting connector (12.1) and the right limiting connector (12.2). Bolts pass through the left limiting connector (12.1), the connecting steel plate (14) and the right limiting connector (12.2) for fastening.

3. The connection structure between an H-shaped column and a reinforced concrete beam according to claim 1, characterized in that, The left limiting connector (12.1) and the right limiting connector (12.2) are connected by bolts through the outer side of the cavity (19) where they are inserted into the flange of the H-shaped column (1).

4. A connection structure between an H-shaped column and a reinforced concrete beam according to any one of claims 1-3, characterized in that, The fastening connection structure of the bolts all adopts a double-ended bolt structure.

5. A connection structure between an H-shaped column and a reinforced concrete beam according to any one of claims 1-3, characterized in that, The H-shaped column (1) is an H-shaped steel-concrete column.

6. The connection structure between an H-shaped column and a reinforced concrete beam according to claim 1, characterized in that, The width of the slot cavity (18) of the steel plate slot (2) is not less than the width of the lower steel plate.

7. The connection structure between an H-shaped column and a reinforced concrete beam according to claim 1, characterized in that, The width of the cavity (19) is not less than the thickness of the flange of the H-shaped column (1), and the portion greater than the thickness of the flange of the H-shaped column (1) does not exceed 5 mm.

8. The connection structure between an H-shaped column and a reinforced concrete beam according to claim 1, characterized in that, The upper steel bar anchor plate (11) and the lower steel bar anchor plate (6) are connected to the left limiting connector (12.1) or the right limiting connector (12.2) at the corner with rounded corners (20).

9. A construction method for a connection structure between an H-shaped column and a reinforced concrete beam as described in any one of claims 1-8, characterized in that, Specifically, the following steps are included: S1. In the node area, weld steel plate slots (2) to the outer wall of the flange plates on both sides of the H-shaped column (1). The work of welding steel plate slots (2) to the flange plates is completed before leaving the factory. S2. Place the left limiting connector (12.1) and the right limiting connector (12.2) on the H-shaped column (1). The cavities of the left limiting connector (12.1) and the right limiting connector (12.2) correspond to the positions of the flange plates of the H-shaped column (1). Insert the lower steel plate into the steel plate slot (2). S3. Connect the left limiting connector (12.1) and the right limiting connector (12.2) and connect them to the H-shaped column (1); S4. Fix the longitudinal reinforcement (9) of the reinforced concrete beam (17) to the reinforcement anchor (5), and then pour the concrete in the joint area and the concrete in the beam to form a complete beam-column connection structure.

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