U-shaped bracket for box beam connecting joint

Abstract

The utility model relates to the technical field of steel structure engineering, in particular to a U-shaped bracket for a box beam connecting node, which is characterized by comprising a box column, a box beam, the U-shaped bracket and an upper flange connecting plate, the U-shaped bracket and the upper flange connecting plate are welded and fixed on the side wall of the box column, and the U-shaped bracket and the upper flange connecting plate are welded and fixed on the side wall of the box column. The upper flange connecting plate is arranged at an opening of the U-shaped bracket and is parallel to a flange plate of the U-shaped bracket, the end of the box beam is inserted into the U-shaped bracket, webs on the two sides of the box beam are connected with vertical plates on the two sides of the U-shaped bracket through bolt assemblies, and an upper flange plate and a lower flange plate of the box beam are connected with the upper flange connecting plate and a bottom plate of the U-shaped bracket through bolt assemblies. The utility model solves the practical technical problems of low construction efficiency and difficulty in hoisting and butt joint of the existing steel structure box type beam column joint integral bolt installation and field welding, and has the advantages of reasonable design, convenience in construction, short construction period and obvious practical effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to steel structure engineering technical field, concretely relates to U shaped haunch for box beam connecting joint. BACKGROUND

[0002] The existing steel structure beam column joint, the installation operation of box beam and box column is complicated, and the construction efficiency is low, which mainly embodies in the following two aspects:

[0003] (1) the pre-welded haunch on the box beam and the box column adopts double-clip plate bolted installation, in order to adapt to bolt assembly, needs to set up manhole on the box beam, the operating personnel first pass through the manhole set up on the box beam, and then adopt spanner clamping to the bolt head and nut of bolt, and then tighten the bolt, after forming the connecting joint of the box beam and the box column, needs to seal the manhole by welding the manhole plate.

[0004] (2) the box beam generally adopts hoisting installation, and when the box beam and the haunch butt joint, needs to ensure on the same axis, and the butt joint is difficult.

[0005] Therefore, we propose U shaped haunch for box beam connecting joint. CONTENT OF UTILITY MODEL

[0006] (1) the solved technical problem

[0007] In view of the deficiency of prior art, the utility model provides U shaped haunch for box beam connecting joint, overcomes the deficiency of prior art, and the design is reasonable, construction is convenient, the construction period is short, the practical effect is obvious, solves the low construction efficiency of the whole bolt installation of the existing steel structure box beam column joint and the site welding, and the practical technical problem of hoisting butt joint difficulty.

[0008] (2) technical scheme

[0009] In order to realize the above object, the utility model is realized by the following technical scheme:

[0010] U shaped haunch for box beam connecting joint, characterized by: including box column, box beam, U shaped haunch and upper flange connecting plate, the sidewall of the box column is welded and fixed with U shaped haunch and upper flange connecting plate, the upper flange connecting plate is arranged at the opening of U shaped haunch and is parallel with the flange plate, the end of the box beam is inserted into U shaped haunch, the two side webs of the box beam are connected with the two side vertical plates of U shaped haunch through bolt assembly, and the upper and lower flange plates of the box beam are connected with the upper flange connecting plate and the bottom plate of U shaped haunch through bolt assembly.

[0011] Further, the upper flange connecting plate is located below the upper flange plate of the box beam, and the lower flange plate of the box beam is formed with a notch for the upper flange connecting plate to pass through;

[0012] Or, the upper flange connecting plate is located above the upper flange plate of the box girder and its two side ends are lapped on the two side vertical plates of the U-shaped bracket.

[0013] Further, the upper and lower flange plates of the box girder are connected with the upper flange connecting plate and the bottom plate of the U-shaped bracket through first bolt assemblies, and the first bolt assemblies are one-way bolt assemblies.

[0014] Further, the two side webs of the box girder are connected with the two side vertical plates of the U-shaped bracket through second bolt assemblies, and the second bolt assemblies are one-way bolt assemblies or through-bolt assemblies.

[0015] When the second bolt assembly is a through-bolt assembly, a sleeve is sleeved on the part of the through-bolt located in the box girder, and the two ends of the sleeve are welded and fixed with the two side webs of the box girder.

[0016] Further, a first inner partition plate is fixed in the box column and arranged horizontally.

[0017] Further, the first inner partition plate is arranged at the connection between the box column and the box girder.

[0018] Further, the box column is replaced by a concrete column.

[0019] The U-shaped bracket is used for the connection joint of the box girder, and characterized in that it comprises a box main girder, a box secondary girder and a U-shaped bracket, the side wall of the box main girder is welded and fixed with the U-shaped bracket, the end of the box secondary girder is inserted into the U-shaped bracket, and the two side webs of the box secondary girder are connected with the two side vertical plates of the U-shaped bracket through bolt assemblies.

[0020] Further, an upper flange connecting plate is welded and fixed on the box main girder, and the upper flange connecting plate is located above the upper flange plate of the box secondary girder and its two side ends are lapped on the two side vertical plates of the U-shaped bracket.

[0021] The upper and lower flange plates of the box secondary girder are connected with the upper flange connecting plate and the bottom plate of the U-shaped bracket through first bolt assemblies, and the first bolt assemblies are one-way bolt assemblies.

[0022] The two side webs of the box secondary girder are connected with the two side vertical plates of the U-shaped bracket through second bolt assemblies, and the second bolt assemblies are through-bolt assemblies, and a sleeve is sleeved on the part of the through-bolt located in the box secondary girder, and the two ends of the sleeve are welded and fixed with the two side vertical plates of the box secondary girder.

[0023] The two side webs of the box secondary girder and the two side vertical plates of the U-shaped bracket are formed with round holes matched with the bolt assemblies.

[0024] Further, the upper flange connecting plate is omitted on the box main girder.

[0025] The lower flange plate of the box secondary beam is not connected with the bottom plate of the U-shaped bracket;

[0026] The two side webs of the box secondary beam are connected with the two side vertical plates of the U-shaped bracket through second bolt assemblies, the second bolt assemblies are through bolt assemblies, the two side webs of the box secondary beam are formed with waist-shaped holes matched with the bolt assemblies, and the two side vertical plates of the U-shaped bracket are formed with round holes matched with the bolt assemblies.

[0027] Further, a second inner partition plate is arranged vertically in the box main beam.

[0028] Still further, the second inner partition plate is arranged at the connection position of the box main beam and the box secondary beam.

[0029] Further, the box main beam is replaced by a concrete frame main beam.

[0030] (Three) beneficial effects

[0031] The utility model provides a U-shaped bracket is used for box type roof beam connecting joint, has the following beneficial effects:

[0032] 1, the bracket is U-shaped structure, in the butt joint process, allow the box type roof beam to exist certain vertical inclination or say rotation, and the box type roof beam horizontal two sides are limited to it through the two side vertical plates of the bracket, reduce the coaxiality requirement of the butt joint of box type roof beam and the bracket, make the end of box type roof beam can be inserted into the U-shaped bracket, and the butt joint of both is more convenient and fast.

[0033] 2, through the combination of one-way bolt assembly or one-way bolt assembly and through bolt assembly, realize the quick assembly of the bracket and the box type roof beam, not only the assembly efficiency is greatly improved, the construction period is greatly shortened, and the secondary dismounting and installation of the component part can be realized, and the practical effect is obvious.

[0034] 3, the combination of one-way bolt assembly and through bolt assembly can overcome the problem of high construction cost of single use one-way bolt, and the steel pipe sleeve is pre-welded in the box type roof beam, the steel pipe sleeve is sleeved on the through bolt, which can improve the strength and ensure the reliability of the connection. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 It is the structural schematic diagram of the utility model embodiment 1;

[0036] Figure 2 It is the explosion schematic diagram of the utility model embodiment 1;

[0037] Figure 3 It is the sectional view schematic diagram of the utility model embodiment 1;

[0038] Figure 4It is a structure schematic view of the embodiment 2 of the utility model;

[0039] Figure 5 It is an explosion schematic view of the embodiment 2 of the utility model;

[0040] Figure 6 It is a sectional view schematic view of the embodiment 2 of the utility model;

[0041] Figure 7 It is a structure schematic view of the embodiment 3 of the utility model;

[0042] Figure 8 It is an explosion schematic view of the embodiment 3 of the utility model;

[0043] Figure 9 It is a structure schematic view of the embodiment 4 of the utility model;

[0044] Figure 10 It is an explosion schematic view of the embodiment 4 of the utility model.

[0045] In the drawing,

[0046] 1, box column;

[0047] 2, first box beam;

[0048] 2a, notch;

[0049] 2', second box beam;

[0050] 2", box main beam;

[0051] 2"', box secondary beam;

[0052] 2 "-a, horizontal waist-shaped hole;

[0053] 3, U-shaped bracket;

[0054] 3a, round hole;

[0055] 4, sunken upper flange connecting plate;

[0056] 4', upper floating upper flange connecting plate;

[0057] 4", double-side extended upper floating upper flange connecting plate;

[0058] 5, one-way bolt;

[0059] 6, through bolt;

[0060] 7, nut;

[0061] 8, steel pipe sleeve;

[0062] 9, first inner partition plate. DETAILED DESCRIPTION

[0063] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are 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 fall within the scope of protection of the utility model.

[0064] Embodiment 1

[0065] Referring to the drawings Figures 1-3 , the U-shaped bracket 3 is used for the box beam column connecting joint, comprising a box column 1, a first box beam 2, a U-shaped bracket 3 and a sunken upper flange connecting plate 4, the U-shaped bracket 3 and the sunken upper flange connecting plate 4 are welded and fixed on the side wall of the box column 1, the sunken upper flange connecting plate 4 is pre-welded on the side wall of the box column 1 in the factory, which can reduce the welding operation at the construction site, improve the assembly efficiency, shorten the construction period, the sunken upper flange connecting plate 4 is arranged at the opening of the U-shaped bracket 3 and is arranged in parallel with the flange plate thereof, the end of the first box beam 2 is inserted into the U-shaped bracket 3, the two side webs of the first box beam 2 are connected with the two side vertical plates of the U-shaped bracket 3 through a bolt assembly, and the upper and lower flange plates of the first box beam 2 are connected with the bottom plate of the U-shaped bracket 3 and the sunken upper flange connecting plate 4 through a bolt assembly.

[0066] The sunken upper flange connecting plate 4 is located below the upper flange plate of the first box beam 2, and the end of the lower flange plate of the first box beam 2 is formed with a notch 2a, which can avoid the sunken upper flange connecting plate 4 in the process of inserting the first box beam 2 into the U-shaped bracket 3 from top to bottom.

[0067] The upper and lower flange plates of the first box girder 2 are connected with the sunken upper flange connecting plate 4 and the bottom plate of the U-shaped bracket 3 through a first bolt assembly, which is a one-way bolt assembly (the number of one-way bolts 5 in the first bolt assembly can be adjusted according to actual needs, and the one-way bolts 5 are prior art, and commercially available 10.9S-GHD2, 3 interlocking one-way bolts of various specifications can be selected, see the prior patents ZL202222244082.7 and ZL202223086293.9 of the patent applicant). The two side webs of the first box girder 2 are connected with the two side vertical plates of the U-shaped bracket 3 through a second bolt assembly, which is a through-bolt assembly. The through-bolts of the through-bolt assembly pass through the two side vertical plates of the U-shaped bracket 3 and the two side webs of the first box girder 2, and are then fastened by nuts 7. The part of the through-bolts 6 located in the first box girder 2 is sleeved with a steel pipe sleeve 8, and the two ends of the steel pipe sleeve 8 are welded and fixed with the two side webs of the first box girder 2. The use of the through-bolt assembly can effectively reduce the construction cost, and the steel pipe sleeve is pre-welded at the installation position of each through-bolt in the box girder to improve the strength and ensure the stability of the connection.

[0068] A pair of horizontally arranged first inner partition plates 9 are welded and fixed in the box column 1. Specifically, the pair of first inner partition plates 9 are located at the connection between the box column 1 and the first box girder 2. The first inner partition plates 9 increase the strength of the box column 1, thereby increasing the overall strength of the joint.

[0069] In this embodiment, the bolts of the one-way bolt assembly and the through-bolts 6 of the through-bolt assembly are preferably high-strength bolts.

[0070] Embodiment 2

[0071] Referring to the accompanying drawings Figures 4-6 , the difference between embodiment 2 and embodiment 1 is that the lower flange plate end of the second box girder 2' does not need to form a gap for the floating upper flange connecting plate 4' to pass through, and the floating upper flange connecting plate 4' is located above the upper flange plate of the second box girder and its two side ends are lapped on the two side vertical plates of the U-shaped bracket 3. Correspondingly, the welding operation of the floating upper flange connecting plate with the box column 1 needs to be completed on site.

[0072] Embodiment 3

[0073] Referring to the accompanying drawings Figure 7 , 8 This joint is a main and secondary box girder rigid joint, which comprises a box main girder 2'', a box secondary girder 2''' and a U-shaped bracket 3. The top wall of the box main girder 2'' is welded and fixed with a floating upper flange connecting plate 4'' extending on both sides, and the two side walls are symmetrically welded and fixed with the U-shaped bracket 3. The end of the box secondary girder 2''' is inserted into the U-shaped bracket 3.

[0074] The two ends of the double-side extending upper floating upper flange connecting plate 4" extend to the box type secondary beam 2"' on both sides of the box type main beam 2" (specifically above the upper flange plate of the box type secondary beam 2"') and the two side ends thereof are lapped on the two side vertical plates of the U-shaped bracket 3;

[0075] The upper and lower flange plates of the box type secondary beam 2"' are connected with the double-side extending upper floating upper flange connecting plate 4", the bottom plate of the U-shaped bracket 3 respectively through a first bolt assembly, and the first bolt assembly is a one-way bolt assembly;

[0076] The two side webs of the box type secondary beam 2"' are connected with the two side vertical plates of the U-shaped bracket 3 respectively through a second bolt assembly, and the second bolt assembly is a through bolt assembly, and a steel pipe sleeve 8 is sleeved on the part of the through bolt 6 in the box type secondary beam 2"'.

[0077] The two side webs of the box type secondary beam 2"' and the two side vertical plates of the U-shaped bracket 3 are formed with round holes matched with the bolt assemblies, that is, the box type secondary beam 2"' cannot be horizontally translated (expanded) or rotationally adjusted.

[0078] A pair of second inner partition plates are welded and fixed in the box type main beam 2", specifically, the pair of second inner partition plates are located at the connection between the box type main beam 2" and the box type secondary beam 2"'.

[0079] Embodiment 4

[0080] Referring to the accompanying drawings Figure 9 , 10 , Embodiment 4 is different from Embodiment 3 in that the node is a main-secondary box type beam hinged node, the upper flange connecting plate is omitted on the box type main beam 2", the lower flange plate of the box type secondary beam 2"' and the bottom plate of the U-shaped bracket 3 are not connected by a one-way bolt assembly, the two webs of the box type secondary beam 2"' are formed with horizontal waist-shaped holes 2"'-a matched with the bolt assemblies, to replace the round holes in Embodiment 3, that is, the box type secondary beam 2"' can be horizontally translated (expanded) or rotationally adjusted. In addition, the steel pipe sleeve 8 sleeved on the part of the through bolt 6 in the box type secondary beam 2"' can also be omitted.

[0081] The structures of the above embodiments 1-4 can also be applied to the reinforcement and reconstruction of a concrete frame structure, that is, the box type column is replaced by a concrete column, and the box type main beam is replaced by a concrete frame main beam.

[0082] It is to be noted that, in the present text, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises a" does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the recited element.

[0083] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit the present application; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; 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 U-shaped bracket for a box beam connection node, characterized in that: The box column is provided with a U-shaped bracket and an upper flange connecting plate welded and fixed on the side wall of the box column, the upper flange connecting plate is arranged at the opening of the U-shaped bracket and is arranged in parallel with the flange plate of the U-shaped bracket, the end of the box beam is inserted into the U-shaped bracket, the two side webs of the box beam are connected with the two side vertical plates of the U-shaped bracket through a bolt assembly, and the upper and lower flange plates of the box beam are connected with the bottom plate of the U-shaped bracket and the upper flange connecting plate through a bolt assembly.

2. The U-stub for a box beam connection joint according to claim 1, wherein: The upper flange connecting plate is located below the upper flange plate of the box beam, and the end of the lower flange plate of the box beam is formed with a gap for the upper flange connecting plate to pass through. Alternatively, the upper flange connecting plate is located above the upper flange plate of the box beam and is lapped on the two side vertical plates of the U-shaped bracket.

3. The U-stub for a box beam connection joint according to claim 1, wherein: The upper and lower flange plates of the box beam are connected with the bottom plate of the U-shaped bracket and the upper flange connecting plate through a first bolt assembly, and the first bolt assembly is a one-way bolt assembly. The two side webs of the box beam are connected with the two side vertical plates of the U-shaped bracket through a second bolt assembly, and the second bolt assembly is a one-way bolt assembly or a through bolt assembly. When the second bolt assembly is a through bolt assembly, a sleeve is sleeved on the part of the through bolt located in the box beam, and the two ends of the sleeve are welded and fixed with the two side vertical plates of the box beam.

4. The U-stub for a box beam connection joint of claim 1, wherein: The box column is provided with a horizontally arranged first inner partition plate, and the first inner partition plate is arranged in a pair and located at the connection between the box column and the box beam.

5. The U-stub of any one of claims 1-4 for use in a box beam connection node, wherein: The box column is replaced by a concrete column.

6. A U-stub for a box beam connection node, characterized in that: The box column is provided with a U-shaped bracket welded and fixed on the side wall of the box column, the end of the box beam is inserted into the U-shaped bracket, and the two side webs of the box beam are connected with the two side vertical plates of the U-shaped bracket through a bolt assembly.

7. The U-stub for a box beam connection joint according to claim 6, wherein: The box main beam is provided with an upper flange connecting plate welded and fixed thereon, the upper flange connecting plate is located above the upper flange plate of the box secondary beam and is lapped on the two side vertical plates of the U-shaped bracket. The upper and lower flange plates of the box secondary beam are connected with the bottom plate of the U-shaped bracket and the upper flange connecting plate through a first bolt assembly, and the first bolt assembly is a one-way bolt assembly. The two side webs of the box secondary beam are connected with the two side vertical plates of the U-shaped bracket through a second bolt assembly, and the second bolt assembly is a through bolt assembly, a sleeve is sleeved on the part of the through bolt located in the box secondary beam, and the two ends of the sleeve are welded and fixed with the two side vertical plates of the box secondary beam. The two side webs of the box secondary beam and the two side vertical plates of the U-shaped bracket are formed with round holes matched with the bolt assembly.

8. The U-stub for a box beam connection joint of claim 6, wherein: The upper flange connecting plate is omitted on the box main beam. The lower flange plate of the box secondary beam is not connected with the bottom plate of the U-shaped bracket. The two side webs of the box secondary beam are connected with the two side vertical plates of the U-shaped bracket through a second bolt assembly, and the second bolt assembly is a through bolt assembly, the two side webs of the box secondary beam are formed with a waist-shaped hole matched with the bolt assembly, and the two side vertical plates of the U-shaped bracket are formed with a round hole matched with the bolt assembly.

9. The U-stub for a box beam connection joint of claim 6, wherein: The box main beam is provided with a vertically arranged second inner partition plate, and the second inner partition plate is arranged in a pair and located at the connection between the box main beam and the box secondary beam.

10. The U-stub for a box beam connection joint according to any one of claims 6-9, characterized in that: The box girder is replaced by a concrete frame girder.

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