Fabricated steel structure of pedestrian overpass support frame with tight connection

Abstract

The utility model provides a pedestrian overpass supporting frame assembly type steel structure tight in connection, and relates to the field of overpass steel structures. The closely-connected pedestrian overpass supporting frame assembly type steel structure comprises a cross beam, a longitudinal beam and a plurality of bolt pieces, an assembly structure is arranged between the cross beam and the longitudinal beam, the assembly structure comprises an assembly piece, an inserting groove matched with the longitudinal beam is formed in the assembly piece, and installation supporting feet are integrally formed on the two sides of the assembly piece. According to the pedestrian overpass supporting frame assembly type steel structure tight in connection, through the arrangement of the assembly structures between the cross beams and the longitudinal beams, one ends of the longitudinal beams can be inserted into the insertion grooves in the assembly parts, insertion type connection is adopted, assembly is convenient and fast, the longitudinal beams can be positioned through the insertion grooves, the longitudinal beams and the assembly parts are tightly connected, and the service life of the pedestrian overpass is prolonged. The assembly part can be connected with the cross beam through the installation supporting legs on the two sides, so that the assembly part and the cross beam are tightly connected, and then the stability of the assembly type steel structure can be improved.

Description

Technical Field

[0001] The present application relates to the field of steel structures for overpasses, and in particular to an assembled steel structure of a tightly connected support frame for a pedestrian overpass. Background Art

[0002] Prefabricated steel structure is a modern construction technology that prefabricates components in a factory and then assembles them into a complete building or structure on site. This method has many significant advantages over traditional on-site casting.

[0003] Steel structures are widely used in modern bridge construction due to their unique properties, such as high strength, good plasticity and toughness, and excellent corrosion resistance. They are generally composed of a combination of crossbeams for supporting the road surface and longitudinal beams for supporting the crossbeams.

[0004] Although the assembled steel structure of the pedestrian bridge support frame in the prior art can realize the function of supporting the road surface through the structure of the prior art, it still has the following defects: welding or direct fixing is often used for assembly. In the actual use of such devices, the tightness of the connection between the cross beam and the longitudinal beam is insufficient, which easily leads to insufficient overall stability of the assembled steel structure of the support frame. Therefore, a tightly connected assembled steel structure of a pedestrian bridge support frame is proposed, which can provide a convenient and fast assembly method while ensuring a tight connection between the cross beam and the longitudinal beam. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the present application provides a tightly connected assembled steel structure of a pedestrian bridge support frame, which solves the problems mentioned in the above background technology.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the present application is implemented through the following technical solutions: a tightly connected assembled steel structure of a pedestrian bridge support frame, including a crossbeam, a longitudinal beam and a plurality of bolt members, an assembly structure is arranged between the crossbeam and the longitudinal beam, the assembly structure includes an assembly part, the interior of the assembly part is provided with a plug-in groove adapted to the longitudinal beam, and both sides of the assembly part are integrally formed with mounting feet.

[0009] By adopting the above technical solution, one end of the longitudinal beam can be plugged into the plug-in slot in the assembly part, and a plug-in connection is adopted, which makes the assembly convenient and quick, and the plug-in slot can position the longitudinal beam so that the longitudinal beam and the assembly part are tightly connected. The assembly part can be connected to the cross beam through the installation feet on both sides, so that the assembly part and the cross beam are tightly connected.

[0010] Preferably, a first hole slot for a bolt to pass through is formed on the mounting foot, and a plurality of second slot holes corresponding to the first hole slot are formed on the crossbeam.

[0011] By adopting the above technical solution, the first holes on the mounting legs on both sides of the assembly are aligned with the second holes on the beam, and then the bolts are passed through the first holes and the second holes and tightened, so that the assembly and the beam can be fixed.

[0012] Preferably, first threaded holes for installing bolts are provided on both sides of the assembly part, and second threaded holes corresponding to the first threaded holes are provided on both sides of one end of the longitudinal beam.

[0013] By adopting the above technical solution, when the longitudinal beam is plugged into the plug-in groove in the assembly part, the bolt member is then screwed into the first threaded hole of the assembly part and the second threaded hole of the longitudinal beam to fix the longitudinal beam and the assembly part.

[0014] Preferably, both ends of the assembly part are provided with third through holes for the bolts to pass through, the third through holes are arranged through the insertion slots, and one end of the longitudinal beam is provided with a fourth through hole corresponding to the third through hole.

[0015] By adopting the above technical solution, the bolt member is passed through the third through hole and the fourth through hole and is tightened, so that the assembly member and the longitudinal beam can be further fixed.

[0016] Preferably, the middle portion of the assembly is hollow.

[0017] By adopting the above technical solution, the hollow assembly part can reduce its own weight, thereby reducing the stress on the longitudinal beam to a certain extent and improving the stability of the support frame.

[0018] (III) Beneficial effects

[0019] The present application provides a tightly connected assembled steel structure for a pedestrian bridge support frame. The beneficial effects are as follows:

[0020] 1. The tightly connected assembled steel structure of the pedestrian bridge support frame has an assembly structure between the crossbeam and the longitudinal beam. One end of the longitudinal beam can be plugged into the plug-in slot in the assembly part. The plug-in connection is convenient and quick to assemble. The plug-in slot can position the longitudinal beam so that the longitudinal beam and the assembly part are tightly connected. The assembly part can be connected to the crossbeam through the installation feet on both sides, so that the assembly part and the crossbeam are tightly connected, thereby improving the stability of the assembled steel structure.

[0021] 2. The tightly connected assembled steel structure of the pedestrian bridge support frame can realize double fixation between the assembly parts and the longitudinal beams through the first threaded holes on both sides of the assembly parts, the third through holes at both ends, and the second threaded holes and the fourth through holes at one end of the longitudinal beam, thereby improving the firmness between the assembly parts and the longitudinal beams. The hollow assembly parts can reduce their own weight, thereby reducing the stress on the longitudinal beams to a certain extent, which is conducive to further improving the stability of the assembled steel structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the implementation scheme of the utility model or the technical scheme in the prior art, the drawings required for use in the implementation scheme or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation schemes of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of the first assembly state of this application;

[0024] Figure 2 This is a schematic diagram of the three-dimensional structure of the second assembly state of the present application;

[0025] Figure 3 This is a schematic diagram of the three-dimensional structure of the separated state of this application;

[0026] Figure 4 It is a three-dimensional structural diagram of the crossbeam and the partial assembly structure of the present application;

[0027] Figure 5 A schematic diagram of a three-dimensional structure of a partial assembly structure of this application;

[0028] Figure 6 This is a schematic diagram of the three-dimensional structure of a partial crossbeam of the present application;

[0029] Figure 7 This is a schematic diagram of the three-dimensional structure of a local longitudinal beam of the present application.

[0030] In the figure: 1, cross beam; 11, second slot hole; 2, longitudinal beam; 21, second threaded hole; 22, fourth through hole; 3, assembly structure; 31, assembly part; 311, plug-in slot; 32, mounting foot; 321, first hole slot; 33, third through hole; 34, first threaded hole. DETAILED DESCRIPTION

[0031] The present application is further described in detail below through drawings and examples.

[0032] Reference Figures 1 to 7The embodiment of the present application provides a tightly connected assembled steel structure of a pedestrian bridge support frame, including a crossbeam 1, a longitudinal beam 2 and a plurality of bolt members. An assembly structure 3 is arranged between the crossbeam 1 and the longitudinal beam 2. The assembly structure 3 includes an assembly part 31. The interior of the assembly part 31 is provided with a plug-in groove 311 adapted to the longitudinal beam 2. Both sides of the assembly part 31 are integrally formed with mounting feet 32. One end of the longitudinal beam 2 can be plugged into the plug-in groove 311 in the assembly part 31. The plug-in connection is adopted, which is convenient and quick to assemble. The plug-in groove 311 can position the longitudinal beam 2 so that the longitudinal beam 2 and the assembly part 31 are tightly connected. The assembly part 31 can be connected to the crossbeam 1 through the mounting feet 32 ​​on both sides, so that the assembly part 31 and the crossbeam 1 are tightly connected, thereby improving the stability of the assembled steel structure.

[0033] Reference Figures 2 to 6 In one aspect of the present embodiment, a first hole slot 321 for a bolt to pass through is formed on the mounting foot 32, and a plurality of second slots 11 corresponding to the first hole slots 321 are formed on the beam 1. The first hole slots 321 on the mounting feet 32 ​​on both sides of the assembly part 31 are aligned with the second slots 11 on the beam 1, and then the bolts are passed through the first hole slots 321 and the second slots 11 and tightened, so that the assembly part 31 and the beam 1 can be fixed.

[0034] Reference Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 7 In one aspect of the present embodiment, first threaded holes 34 for installing bolts are provided on both sides of the assembly part 31, and second threaded holes 21 corresponding to the first threaded holes 34 are provided on both sides of one end of the longitudinal beam 2. When the longitudinal beam 2 is plugged into the plug-in groove 311 in the assembly part 31, the bolts are then screwed into the first threaded holes 34 of the assembly part 31 and the second threaded holes 21 of the longitudinal beam 2 to fix the longitudinal beam 2 and the assembly part 31.

[0035] In one aspect of the present embodiment, third through holes 33 for bolts to pass through are provided at both ends of the assembly part 31, the third through holes 33 are arranged through the insertion groove 311, and a fourth through hole 22 corresponding to the third through hole 33 is provided at one end of the longitudinal beam 2. The bolts are passed through the third through hole 33 and the fourth through hole 22 and tightened, so that the assembly part 31 and the longitudinal beam 2 can be further fixed.

[0036] In one aspect of this embodiment, the middle portion of the assembly part 31 is provided in a hollow shape. The assembly part 31 provided in a hollow shape can reduce its own weight, thereby reducing the stress on the longitudinal beam 2 to a certain extent and improving the stability of the support frame.

[0037] Working principle: The assembled steel structure of the pedestrian bridge support frame with tight connection is to align the first hole groove 321 on the mounting feet 32 ​​on both sides of the assembly part 31 with the second slot hole 11 on the beam 1, and then pass the bolt part through the first hole groove 321 and the second slot hole 11 and tighten it, so as to realize the fixation between the assembly part 31 and the beam 1. When the longitudinal beam 2 is plugged into the plug-in groove 311 in the assembly part 31, the bolt part is then screwed into the first threaded hole 34 of the assembly part 31 and the second threaded hole 21 of the longitudinal beam 2 to fix the longitudinal beam 2 and the assembly part 31. The bolt part is passed through the third through hole 33 and the fourth through hole 22 and tightened, so as to further fix the assembly part 31 and the longitudinal beam 2. The plug-in connection is adopted, and the plug-in groove 311 can position the longitudinal beam 2 so that the longitudinal beam 2 and the assembly part 31 are tightly connected. The assembly part 31 can be connected to the beam 1 through the mounting feet 32 ​​on both sides, so that the assembly part 31 and the beam 1 are tightly connected.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0039] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A tightly connected pedestrian bridge support frame assembled steel structure, comprising a crossbeam (1), a longitudinal beam (2) and a plurality of bolt members, characterized in that: An assembly structure (3) is provided between the crossbeam (1) and the longitudinal beam (2), the assembly structure (3) comprising an assembly part (31), a plug-in slot (311) adapted to the longitudinal beam (2) being provided inside the assembly part (31), and mounting feet (32) being integrally formed on both sides of the assembly part (31).

2. According to claim 1, a tightly connected pedestrian bridge support frame assembled steel structure is characterized by: The mounting foot (32) is provided with a first hole slot (321) for a bolt member to pass through, and the crossbeam (1) is provided with a plurality of second slot holes (11) corresponding to the first hole slot (321).

3. The tightly connected pedestrian bridge support frame assembled steel structure according to claim 1 is characterized by: First threaded holes (34) for mounting bolts are provided on both sides of the assembly part (31), and second threaded holes (21) corresponding to the first threaded holes (34) are provided on both sides of one end of the longitudinal beam (2).

4. The tightly connected pedestrian bridge support frame assembled steel structure according to claim 1 is characterized by: Both ends of the assembly part (31) are provided with third through holes (33) for the bolt to pass through, the third through hole (33) is arranged to penetrate the insertion slot (311), and one end of the longitudinal beam (2) is provided with a fourth through hole (22) corresponding to the third through hole (33).

5. The tightly connected pedestrian bridge support frame assembled steel structure according to claim 1 is characterized by: The middle part of the assembly part (31) is arranged to be hollow.

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