Anchoring joint structure of steel beam and concrete column

Abstract

The utility model relates to the technical field of constructional engineering, and discloses a steel beam and concrete column anchoring node structure which comprises a cubic concrete column, a longitudinal through hole formed in the concrete column in the front-back direction and a transverse through hole formed in the concrete column in the left-right direction, and a reinforcing plate surrounding and wrapping the outer side of the concrete column. A longitudinal screw or a transverse screw is arranged between every two opposite reinforcing plates in a penetrating mode, the longitudinal screws and the transverse screws penetrate through the corresponding longitudinal holes and the corresponding transverse holes respectively, the longitudinal screws and the transverse screws are in threaded connection with locking nuts respectively, and every two adjacent reinforcing plates are fixedly connected in a welded mode. Structural adhesives are arranged between the concrete column and the reinforcing plate and in the longitudinal holes and the transverse holes; and a connecting part is welded and fixedly connected on the outer side surface of the reinforcing plate and is fixedly connected with the steel beam. The structure improves the connecting strength of the concrete column and the steel beam, and is simple and convenient to construct, safe, reliable, high in mounting efficiency and good in structural stability.

Description

Technical Field

[0001] The utility model relates to the technical field of building engineering, in particular to an anchoring node structure of a steel beam and a concrete column. Background Art

[0002] In some building reinforcement and renovation projects, steel beams are added to existing building layers. In the prior art, bolts are usually implanted in existing concrete columns, embedded parts are constructed, structural adhesive is poured between the concrete columns and embedded parts, and then the embedded parts are welded to the steel beams. The high temperature of welding seriously affects the strength of the poured structural adhesive, thereby affecting the safety of the connection structure between the concrete column and the steel beam. The above construction is cumbersome and complicated, the work efficiency is low, and the construction quality is difficult to guarantee. Utility Model Content

[0003] The utility model provides an anchoring node structure of a steel beam and a concrete column, which can avoid the influence of high welding temperature on the strength of structural adhesive, the concrete column and the steel beam are firmly connected, the construction is convenient and fast, and the construction quality is stable and reliable.

[0004] The above-mentioned purpose of the utility model is achieved through the following technical solutions:

[0005] A steel beam and concrete column anchor node structure, comprising a cubic column-shaped concrete column, wherein the concrete column is provided with a longitudinal hole penetrating along the front-to-back direction, and the concrete column is provided with a transverse hole penetrating along the left-to-right direction. A reinforcing plate is wrapped around the outer side of the concrete column, and a longitudinal screw or a transverse screw penetrating therebetween is provided between two opposite reinforcing plates, wherein the longitudinal screw and the transverse screw respectively pass through corresponding longitudinal holes and transverse holes, and the longitudinal screw and the transverse screw are respectively screwed with locking nuts, and two adjacent reinforcing plates are welded and fixedly connected; a fixed connection portion is welded on the outer side surface of the reinforcing plate, and structural adhesive is poured between the concrete column and the reinforcing plate and in the longitudinal holes and the transverse holes for fixed connection, and the connection portion is fixedly connected to the steel beam.

[0006] The above-mentioned steel beam and concrete column anchor node structure, wherein the longitudinal holes include multiple rows, the multiple rows of longitudinal holes are spaced apart along the transverse direction of the concrete column, and each row of the longitudinal holes includes multiple spaces along the longitudinal direction of the concrete column; the transverse holes include multiple rows, the multiple rows of transverse holes are spaced apart along the transverse direction of the concrete column, and each row of the transverse holes includes multiple spaces along the longitudinal direction of the concrete column.

[0007] In the above-mentioned steel beam and concrete column anchoring node structure, the longitudinal holes and the transverse holes are staggeredly distributed along the up and down directions of the concrete column.

[0008] In the above-mentioned steel beam and concrete column anchor node structure, there are 3 to 12 longitudinal holes in each row and 3 to 12 transverse holes in each row.

[0009] In the above-mentioned steel beam and concrete column anchor node structure, a vertically arranged strip gasket is provided between the concrete column and the reinforcing plate, and a plurality of the strip gaskets are distributed at intervals along the circumference of the concrete column.

[0010] In the above-mentioned steel beam and concrete column anchor node structure, the thickness of the strip gasket is 2-8 mm, and the length of the strip gasket is not greater than the height of the reinforcement plate.

[0011] In the above-mentioned steel beam and concrete column anchor node structure, both ends of the longitudinal screw rod and the transverse screw rod are respectively screwed with locking nuts.

[0012] In the above-mentioned steel beam and concrete column anchor node structure, one end of the longitudinal screw and the transverse screw are respectively fixedly connected to the screw head, and the other end of the longitudinal screw and the transverse screw are respectively screwed to the locking nut.

[0013] The above-mentioned steel beam and concrete column anchor node structure, wherein the connecting part includes an upper wing plate and a lower wing plate respectively welded and fixedly connected to the upper and lower parts of the reinforcing plate, the upper wing plate and the lower wing plate are both horizontally arranged, the upper wing plate and the lower wing plate are respectively surrounded on the outer side of the reinforcing plate, the reinforcing plate is welded and fixedly connected to a vertical rib plate, the rib plate is perpendicular to the corresponding reinforcing plate, and the upper and lower ends of the rib plate are respectively welded and fixedly connected to the corresponding upper wing plate and the lower wing plate.

[0014] In the above-mentioned steel beam and concrete column anchor node structure, a plurality of rib plates are arranged at intervals along the width direction of the reinforcing plate.

[0015] In summary, the beneficial technical effects of the present invention are:

[0016] The utility model fastens and connects the reinforcement plates on opposite sides of the concrete column by passing through the longitudinal screw and the transverse screw of the concrete column to form a steel plate hoop, and welds the connection part on the outer side of the reinforcement plate, then pours the structural adhesive between the steel plate hoop and the concrete column, and finally fixes and connects the steel beam to the connection part. The anchoring node structure of the concrete column and the steel beam effectively avoids the influence of the high temperature of welding on the strength of the structural adhesive, improves the connection strength of the concrete column and the steel beam, and has the advantages of simple construction, safety and reliability, high installation efficiency and good structural stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is the front view of the utility model;

[0018] Figure 2 yes Figure 1 A top view of

[0019] As shown in the figure, 1. concrete column; 11. longitudinal hole; 12. transverse hole; 2. reinforcing plate; 3. longitudinal screw; 4. transverse screw; 5. locking nut; 6. connecting part; 61. upper wing plate; 62. lower wing plate; 63. rib plate; 7. steel beam; 8. strip gasket. DETAILED DESCRIPTION

[0020] The following is combined with Figure 1-2 The utility model is described in further detail.

[0021] like Figure 1 , 2 As shown, a steel beam and concrete column anchor node structure includes a cubic column 1, the concrete column 1 is provided with a longitudinal hole 11 penetrating along the front-back direction, and the concrete column 1 is provided with a transverse hole 12 penetrating along the left-right direction. The longitudinal hole 11 and the transverse hole 12 are both arranged horizontally. The outer side of the concrete column 1 is surrounded by a reinforcing plate 2, that is, the four sides of the concrete column 1 are provided with a reinforcing plate 2 to form a reinforcing plate hoop. The reinforcing plate 2 is a steel plate. A longitudinal screw 3 or a transverse screw 4 penetrating between two opposite reinforcing plates 2 is provided. The longitudinal screw 3 and the transverse screw 4 pass through the corresponding longitudinal holes 1 respectively. 1 and transverse holes 12, that is, the longitudinal screw 3 passes through the longitudinal hole 11 and its two ends penetrate the reinforcing plates 2 on the front and rear sides, and the transverse screw 4 passes through the transverse hole 12 and its two ends penetrate the reinforcing plates on the left and right sides; the longitudinal screw 3 and the transverse screw 4 are respectively screwed with the locking nuts 5, and the two adjacent reinforcing plates 2 are welded and fixedly connected. The reinforcing plates 2 on the four surfaces of the concrete column 1 are closed and surrounded on the outside of the concrete column 1; the fixed connection part 6 is welded on the outer surface of the reinforcing plate 2, and the concrete column 1 and the reinforcing plate 2 are fixedly connected by pouring structural adhesive between the concrete column 1 and the reinforcing plate 2 as well as in the longitudinal hole 11 and the transverse hole 12, and the connection part 6 is fixedly connected to the steel beam 7.

[0022] like Figure 1 As shown, the longitudinal holes 11 of this embodiment include multiple rows, and the multiple rows of longitudinal holes 11 are spaced apart along the transverse direction of the concrete column 1, and multiple longitudinal holes 11 in each row are spaced apart along the longitudinal direction of the concrete column 1; the transverse holes 12 include multiple rows, and the multiple rows of transverse holes 12 are spaced apart along the transverse direction of the concrete column 1, and multiple transverse holes 12 in each row are spaced apart along the longitudinal direction of the concrete column 1.

[0023] In order to avoid interference between the longitudinal holes 11 and the transverse holes 12 , the longitudinal holes 11 and the transverse holes 12 are staggered along the up-and-down direction of the concrete column 1 .

[0024] In one embodiment, each row of longitudinal holes 11 has 3-12 holes, and each row of transverse holes 12 has 3-12 holes. The number of longitudinal holes 11 and transverse holes 12 in each row can be selected according to the width of the concrete column 1 and the bearing capacity of the designed load-bearing steel beam.

[0025] In order to facilitate the pouring of structural adhesive and ensure the thickness of the structural adhesive, a vertically arranged strip gasket 8 is provided between the concrete column 1 and the reinforcing plate 2 , and a plurality of strip gaskets 8 are distributed at intervals along the circumference of the concrete column 1 .

[0026] The thickness of the strip gasket 8 is 2-8 mm. In the present embodiment, the thickness of the strip gasket 8 is 5 mm. The length of the strip gasket 8 is not greater than the height of the reinforcing plate 2 .

[0027] By providing the strip gasket 8, it is ensured that the gap between the concrete column 1 and the reinforcing plate 2 meets the thickness of the injected structural adhesive, and the injection of the structural adhesive is also facilitated.

[0028] In this embodiment, both ends of the longitudinal screw rod 3 and the transverse screw rod 4 are respectively threadedly connected with locking nuts 5 , and the tension bolts can be tightened simultaneously on the two opposite sides of the reinforcing plates 2 .

[0029] In another embodiment, one end of the longitudinal screw 3 and the transverse screw 4 is respectively connected to the screw head, and the other end of the longitudinal screw 3 and the transverse screw 4 is respectively screwed to the locking nut 5. This structure can tighten the longitudinal screw 3 or the transverse screw 4 by rotating the locking nut 5 on one side.

[0030] The connecting portion 6 includes an upper wing plate 61 and a lower wing plate 62 which are respectively welded and fixedly connected to the upper and lower portions of the reinforcing plate 2. The upper wing plate 61 and the lower wing plate 62 are both horizontally arranged, and are welded and fixedly connected to two adjacent upper wing plates 61 or two adjacent lower wing plates 62. The upper wing plate 61 and the lower wing plate 62 are respectively surrounded on the outer side of the reinforcing plate 2. A vertical rib plate 63 is welded and fixedly connected to the reinforcing plate 2. The rib plate 63 is perpendicular to the corresponding reinforcing plate 2. The upper and lower ends of the rib plate 63 are respectively welded and fixedly connected to the corresponding upper wing plate 61 and the lower wing plate 62. The connecting portion 6 is in the shape of an "I".

[0031] The structural form of the connecting portion 6 can be adjusted according to the steel beams to be connected.

[0032] In one embodiment, a plurality of ribs 63 are provided at intervals along the width direction of the reinforcing plate 2 to improve the strength of the connecting portion 6 . The number of ribs 63 can be selected according to the structure of the steel beam.

[0033] The specific implementation process of the node structure of the utility model is as follows: drilling holes at appropriate positions of the existing concrete column 1, that is, drilling multiple rows of horizontal longitudinal holes 11 along the front-to-back direction of the concrete column 1, drilling multiple rows of horizontal transverse holes 12 along the left-to-right direction of the concrete column 1, and drilling through holes on the reinforcing plate 2 that are opposite to the multiple rows of longitudinal holes 11 and the multiple rows of transverse holes 12 to facilitate the insertion of the longitudinal screws 3 and the transverse screws 4.

[0034] A plurality of strip gaskets 8 are pasted at intervals along the circumferential direction of the concrete column 1, and the strip gaskets 8 should avoid the longitudinal holes 11 and the transverse holes 12. Four reinforcing plates 2 are arranged in the circumferential direction of the concrete column 1, and a pre-tightening force is applied to two opposite reinforcing plates 2 by means of a longitudinal screw 3 passing through the longitudinal hole 11 and a transverse screw 4 passing through the transverse hole 12. The joints of the two adjacent reinforcing plates 2 are then welded and fixedly connected, and then the longitudinal screw 3 and the transverse screw 4 are further tightened by means of a locking nut 5, so that the two opposite reinforcing plates 2 are tightly embraced by the concrete column 1 through the strip gaskets 8.

[0035] The connecting part 6 is welded on the reinforcing plate 2, that is, the upper wing plate 61 and the lower wing plate 62 are welded to the upper and lower parts of the reinforcing plate 2, and the rib plate 63 is vertically welded to the reinforcing plate 2, and the upper and lower ends of the rib plate 63 are welded and fixed to the upper wing plate 61 and the lower wing plate 62 respectively.

[0036] The bottom of the reinforcing plate 2 and the concrete column 1 are sealed to prevent loss of structural adhesive during injection. The structural adhesive is injected along the gap between the upper end of the reinforcing plate 2 and the concrete column 1, so that the structural adhesive is injected between the reinforcing plate 2 and the concrete column 1, in the longitudinal hole 11, in the transverse hole 12, and in the gap between two adjacent strip gaskets 8. By providing the strip gasket 8, the thickness of the injected glue is guaranteed, the quality of the injected glue is improved, and the firmness of the node is enhanced.

[0037] The utility model adopts a method of setting a reinforcing plate hoop on the outside of the concrete column 1, welding a connecting part 6 on the outside of the reinforcing plate 2, and then pouring structural adhesive between the concrete column 1 and the reinforcing plate 2. Finally, the connecting part 6 and the steel beam are connected by welding or bolting to complete the anchoring node of the concrete column 1 and the steel beam. This structure avoids the influence of the high temperature of welding between the connecting part 6 and the reinforcing plate 2 on the strength of the structural adhesive. By welding the connecting part 6 and the steel beam, the influence of the high temperature of welding on the strength of the structural adhesive can also be effectively reduced. This structure improves the connection strength between the concrete column 1 and the steel beam.

[0038] The embodiments of this specific implementation method are all preferred embodiments of the utility model, and are not intended to limit the protection scope of the utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A steel beam and concrete column anchor node structure, comprising a cubic concrete column, characterized in that: The concrete column is provided with a longitudinal hole passing through it along the front-to-back direction, and a transverse hole passing through it along the left-to-right direction. A reinforcing plate is wrapped around the outside of the concrete column, and a longitudinal screw or a transverse screw passing through it is provided between the two opposite reinforcing plates. The longitudinal screw and the transverse screw respectively pass through the corresponding longitudinal holes and transverse holes, and the longitudinal screw and the transverse screw are respectively screwed with locking nuts, and the two adjacent reinforcing plates are welded and fixedly connected; a fixed connection part is welded on the outer surface of the reinforcing plate, and structural glue is poured between the concrete column and the reinforcing plate and in the longitudinal holes and the transverse holes for fixation, and the connection part is fixedly connected to the steel beam.

2. The steel beam and concrete column anchoring node structure according to claim 1 is characterized in that: The longitudinal holes include multiple rows, and the multiple rows of longitudinal holes are spaced apart along the transverse direction of the concrete column, and multiple longitudinal holes in each row are spaced apart along the longitudinal direction of the concrete column; the transverse holes include multiple rows, and the multiple rows of transverse holes are spaced apart along the transverse direction of the concrete column, and multiple transverse holes in each row are spaced apart along the longitudinal direction of the concrete column.

3. The steel beam and concrete column anchoring node structure according to claim 2 is characterized in that: The longitudinal holes and the transverse holes are staggeredly distributed along the up-and-down direction of the concrete column.

4. The steel beam and concrete column anchoring node structure according to claim 2, characterized in that: There are 3-12 vertical holes in each row, and 3-12 horizontal holes in each row.

5. The steel beam and concrete column anchoring node structure according to claim 1, characterized in that: A vertically arranged strip gasket is provided between the concrete column and the reinforcement plate, and a plurality of the strip gaskets are distributed at intervals along the circumference of the concrete column.

6. The steel beam and concrete column anchoring node structure according to claim 5, characterized in that: The thickness of the strip gasket is 2-8 mm, and the length of the strip gasket is not greater than the height of the reinforcing plate.

7. The steel beam and concrete column anchoring node structure according to claim 1, characterized in that: The two ends of the longitudinal screw rod and the transverse screw rod are respectively threadedly connected with locking nuts.

8. The steel beam and concrete column anchoring node structure according to claim 1, characterized in that: One end of the longitudinal screw and the transverse screw is respectively fixedly connected to the screw head, and the other end of the longitudinal screw and the transverse screw is respectively threadedly connected to the locking nut.

9. The steel beam and concrete column anchoring node structure according to claim 1, characterized in that: The connecting portion includes an upper wing plate and a lower wing plate which are respectively welded and fixedly connected to the upper and lower parts of the reinforcing plate, the upper wing plate and the lower wing plate are both horizontally arranged, the upper wing plate and the lower wing plate are respectively surrounded on the outer side of the reinforcing plate, the reinforcing plate is welded and fixedly connected to a vertical rib plate, the rib plate is perpendicular to the corresponding reinforcing plate, and the upper and lower ends of the rib plate are respectively welded and fixedly connected to the corresponding upper wing plate and the lower wing plate.

10. The steel beam and concrete column anchoring node structure according to claim 9, characterized in that: A plurality of ribs are arranged at intervals along the width direction of the reinforcing plate.

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