Connecting joint structure with newly-added secondary beam higher than original main beam in interlayer

Abstract

The utility model relates to a connection node structure, belongs to the technical field of building structures, and particularly relates to a connection node structure with a newly added secondary beam higher than an original main beam in an interlayer, which comprises a main beam and a secondary beam fixedly mounted on one side of the main beam. The floor slabs are fixedly mounted at the tops of the secondary beams; the number of the horizontal ribs is multiple, and the horizontal ribs are fixedly installed between the main beam and the secondary beam; the connecting structure achieves the effects of improving the tightness degree of the connecting position of the primary beam and the secondary beam and giving consideration to safety and economical efficiency, and solves the problems that an existing construction method does not involve connection of the primary beams and the secondary beams with different heights, and a traditional connecting node structure lacks connecting stability and safety and is inconvenient to construct. And the width of the original structural beam often cannot meet the anchoring length requirement of the embedded steel bar.

Description

TECHNICAL FIELD

[0001] The utility model relates to building structure technical field, especially a connecting joint structure of new secondary beam higher than original main beam in interlayer. BACKGROUND

[0002] In the existing building interlayer reconstruction or structure extension engineering, when the height of the new secondary beam is higher than the original main beam, the force transmission reliability and structural integrity need to be ensured through special joint structure.

[0003] Through the retrieval, the patent with the announcement number CN215858488U discloses a combined floor structure joint, which comprises a steel frame beam, the steel frame beam is connected between any two adjacent steel frame columns, two steel frame beams are connected through a steel secondary beam in the middle, the steel frame beam and the steel secondary beam form a platform, the platform is provided with a combined floor, the height of the steel frame beam is higher than that of the steel secondary beam, in order to increase the net height of the steel structure building floor, the utility model provides a combined floor structure joint, which is combined with the steel beam and the combined floor part, so as to reduce the height occupied by the structural members in the steel structure building floor, so as to obtain a higher floor net height.

[0004] Based on the above-mentioned retrieval combined with the existing patent,

[0005] The construction method of the above-mentioned retrieval patent is suitable for steel beams with the same height, and does not involve the connection of main beams and secondary beams with different heights, in addition, the traditional connecting joint structure lacks connection stability and safety, and the width of the original structural beam often does not meet the anchoring length requirement of the embedded steel bar, so there is certain limitation. UTILITY MODEL CONTENTS

[0006] In order to solve the above-mentioned technical problem, the utility model provides a connecting joint structure of new secondary beam higher than original main beam in interlayer, which takes into account safety and economy.

[0007] The technical solution for realizing the purpose of the utility model is as follows: a connecting joint structure of new secondary beam higher than original main beam in interlayer, which comprises a main beam and a secondary beam, the secondary beam is fixedly installed on one side of the main beam, and further comprises:

[0008] A floor, which is fixedly installed on the top of the secondary beam;

[0009] Horizontal bars, which are provided with a plurality of horizontal bars, the horizontal bars are fixedly installed between the main beam and the secondary beam.

[0010] Preferably, one end of one of the horizontal bars penetrates the main beam, one of the horizontal bars is fixedly installed with an anchoring plate together with the main beam, a plurality of longitudinal bars are fixedly installed between the top of the secondary beam and the floor, and a plurality of vertical steel bars are fixedly installed together between the horizontal bars and the longitudinal bars.

[0011] Preferably, a stirrup is fixedly installed between adjacent vertical steel bars, the stirrup is arranged in a floor slab, the longitudinal steel bars and the horizontal steel bars are fixedly installed with torsion resisting hoops, and the vertical steel bars and the horizontal steel bars are poured with mud between one end and a main beam.

[0012] Compared with the prior art, the utility model has the following obvious advantages:

[0013] Firstly, the utility model improves the anti-seismic performance of the building, guarantees safety and improves economic effect, and the torsion resisting hoops improve the overall shear resistance and torsion resistance of the building.

[0014] Secondly, the utility model can better solve the problem of inconsistent elevation of the new secondary beam and the original main beam in the new sandwich structure by vertical planting of steel bars and horizontal plug welding and corresponding interface treatment, and the multiple steel bars form a net structure, thereby improving the tightness of the connection between the main beam and the secondary beam.

[0015] The prior construction method does not involve the connection of main beams and secondary beams with different heights, and in addition, the traditional connection node structure lacks connection stability and safety, and the width of the original structure beam often does not meet the anchoring length requirement of the steel bar. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model will be further explained in combination with the drawings and embodiments:

[0017] Fig. 1 is the overall first perspective structure schematic view provided by the utility model;

[0018] Fig. 2 is the overall second perspective structure schematic view provided by the utility model;

[0019] Fig. 3 is the cross-sectional structure schematic view provided by the utility model.

[0020] BRIEF DESCRIPTION OF DRAWINGS

[0021] 1, main beam; 2, secondary beam; 3, floor slab; 4, anchoring plate; 5, horizontal steel bar; 6, mud; 7, torsion resisting hoop; 8, stirrup; 9, vertical steel bar; 10, longitudinal steel bar. DETAILED DESCRIPTION

[0022] The utility model will be further explained in combination with the drawings and embodiments: obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0023] The utility model discloses a connecting joint structure of newly added secondary beam higher than original main beam in sandwich, and the technical scheme of the utility model is:

[0024] As Figs. 1-3 The utility model discloses a connecting joint structure of newly added secondary beam higher than original main beam in sandwich, and the technical scheme of the utility model is:

[0025] Floor 3, floor 3 fixed mounting early in the top of secondary beam 2, and floor 3 realizes the transmission of force, and the overall stability of building is enhanced.

[0026] Horizontal bar 5, horizontal bar 5 is provided with a plurality, and horizontal bar 5 is fixedly installed between main beam 1 and secondary beam 2, and forms a net structure with vertical steel bar 9 crossing, and the anti-seismic effect is improved.

[0027] Further, one end of one horizontal bar 5 penetrates main beam 1, and one horizontal bar 5 is fixedly installed with anchor plate 4 between main beam 1, a plurality of longitudinal bars 10 are fixedly installed between the top of secondary beam 2 and floor 3, a plurality of vertical steel bars 9 are fixedly installed between horizontal bar 5 and longitudinal bar 10, the anchoring force of reinforcing steel and concrete is enhanced, anchor plate 4 can effectively disperse stress concentration under the action of earthquake, and the anti-seismic performance of structure is improved.

[0028] Further, hoop 8 is fixedly installed between adjacent vertical steel bars 9, and hoop 8 is arranged in floor 3, and anti-torsion waist bar 7 is fixedly installed on longitudinal bar 10 and horizontal bar 5, and mud 6 is poured between the one end of vertical steel bar 9 and horizontal bar 5 and main beam 1, the shear torsion capacity is improved by increasing hoop 8 (increasing or increasing diameter), and then anti-torsion waist bar 7 is additionally arranged to improve the torsion resistance of beam.

[0029] Specific working method is as follows: first, the surface of main beam 1 structure is chiseled and brushed with interface agent on the connecting part of main beam 1 and secondary beam 2, and longitudinal bar 10 on the top of newly added secondary beam 2 is bent and implanted into main beam 1, then, horizontal bar 5 is perforated and welded, anchor plate 4 is 25mm thick, Q355B, and the width is 150mm, and the secondary beam 2 is extended by about 100mm on each side, horizontal bar 5 and vertical steel bar 9 are pressed and grouted through the penetrating hole and main beam 1, hoop 8 is installed on vertical steel bar 9, and anti-torsion waist bar 7 in newly added secondary beam 2 is implanted with a depth of 18d, and finally, after the binding of all the reinforcing steels is completed, the formwork is reinforced, and then concrete is poured, so that the economy is improved and the safety is ensured.

[0030] The technical means disclosed by the utility model scheme is not limited to the technical means disclosed by the above technical means, and also includes the technical scheme composed by the above technical features. The matters not covered by the utility model belong to the common knowledge of the person skilled in the art.

Claims

1. A connecting joint structure of a new secondary beam higher than an original main beam in a sandwich, comprising a main beam (1) and a secondary beam (2), characterized in that: The secondary beam (2) is fixedly installed on one side of the main beam (1), and further comprises; A floor (3) is fixedly installed on the top of the secondary beam (2); A plurality of horizontal bars (5) are provided, and the horizontal bars (5) are fixedly installed between the main beam (1) and the secondary beam (2).

2. The connection node structure of a newly added secondary beam higher than the original main beam in a mezzanine according to claim 1, characterized in that: One end of the horizontal bar (5) penetrates the main beam (1), and an anchor plate (4) is fixedly installed between the horizontal bar (5) and the main beam (1); a plurality of longitudinal bars (10) are fixedly installed between the top of the secondary beam (2) and the floor (3); and a plurality of vertical steel bars (9) are fixedly installed between the horizontal bars (5) and the longitudinal bars (10).

3. The connection node structure of a newly added secondary beam higher than the original main beam in a mezzanine according to claim 2, characterized in that: Stirrups (8) are fixedly installed between adjacent vertical steel bars (9), and the stirrups (8) are arranged inside the floor (3); anti-torsion waist bars (7) are fixedly installed on the longitudinal bars (10) and the horizontal bars (5); and mud (6) is poured between the vertical steel bars (9), one end of the horizontal bars (5) and the main beam (1).

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