An assembled steel plate bridge combined structure

Abstract

The utility model belongs to bridge engineering field especially relates to a kind of fabricated steel plate bridge combined structure, including steel beam, deck, crossbeam and wing plate etc., two steel beams are arranged side by side, and one row of interval distribution's pouring hole one is set in the upper portion of each steel beam along horizontal direction, the deck is inserted in the upper portion of each steel beam, the deck covers corresponding one row pouring hole one, crossbeam is transversely spliced between two steel beams, multiple vertical distribution's pouring hole two are set in crossbeam, pouring hole one and pouring hole two size are identical, multiple front and rear distribution's wing plate are fixedly connected in crossbeam. By setting the modular steel beam, deck, crossbeam, longitudinal panel and horizontal panel, cooperate pouring hole one and pouring hole two, realize on-site rapid assembly, avoid environmental constraints, shorten construction period, stabilize quality, reduce artificial intensity, meet the urgent needs of modern bridge engineering to efficient construction.

Description

Technical Field

[0001] This utility model belongs to the field of bridge engineering, and in particular relates to a prefabricated steel plate bridge composite structure. Background Technology

[0002] With the rapid advancement of transportation infrastructure construction and the deepening of urbanization in my country, higher demands are being placed on the construction efficiency, environmental adaptability, and life-cycle economic efficiency of bridge structures. Steel plate bridge composite structures, due to their high load-bearing capacity, are widely used in urban interchanges, highways, and emergency repair applications.

[0003] Current composite steel plate bridge structures generally employ a method of combining steel beams and concrete bridge decks using shear connectors. Construction requires first laying the steel beams, then welding the shear connectors, and finally binding the reinforcing steel on-site and pouring concrete to form the composite beam. While this process achieves good structural integrity and load-bearing capacity, the extensive steel reinforcement binding and concrete pouring work must be carried out at high altitudes and in open environments, significantly constrained by weather, temperature, humidity, and other environmental factors. This can easily lead to prolonged construction periods, unstable finishing quality, and intensive labor input, failing to meet the urgent need for efficient construction in modern bridge engineering.

[0004] Therefore, there is a particular need for a prefabricated steel plate bridge composite structure to solve the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of existing steel plate bridge composite structure construction technology, which relies on on-site high-altitude operations, is significantly constrained by environmental factors, resulting in long construction cycles, unstable forming quality, and intensive labor input, this utility model provides a prefabricated steel plate bridge composite structure.

[0006] This utility model is achieved through the following technical means: a prefabricated steel plate bridge composite structure, including steel beams, bridge decks, crossbeams, wing plates, longitudinal panels, and transverse panels. Two steel beams are arranged side by side. Each steel beam has a row of intermittently distributed casting holes 1 on its upper part. A bridge deck is inserted into the upper part of each steel beam. The bridge deck covers a corresponding row of casting holes 1. A crossbeam is spliced ​​between the two steel beams. The crossbeam has multiple vertically distributed casting holes 2. The casting holes 1 and casting holes 2 are the same size. Multiple wing plates are fixed to the crossbeam and distributed front and back. The longitudinal panel is inserted into the crossbeam. Multiple wing plates are distributed on both sides of the longitudinal panel and are close to the longitudinal panel. The top surface of the wing plates is flush with the top surface of the longitudinal panel. The longitudinal panel covers multiple casting holes 2 that are lower than the wing plates. The transverse panel is fixed to the top of the longitudinal panel and is embedded between the two bridge decks.

[0007] Preferably, the bottom width of the steel beam and the crossbeam are the same.

[0008] Preferably, the wing plates are made of high-strength steel plates.

[0009] Preferably, the top surfaces of the steel beam and the crossbeam are at the same horizontal height, and two bridge deck panels and a transverse panel are inserted into the two upper end faces of the crossbeam, respectively. The two bridge deck panels and the transverse panel cover multiple casting holes that are higher than the flange.

[0010] Preferably, the horizontal panel has a T-shaped structure.

[0011] Preferably, the bridge deck has the same width as the top surface of the transverse deck.

[0012] Beneficial effects: 1. By setting up modular steel beams, bridge decks, crossbeams, longitudinal panels and transverse panels, and cooperating with casting holes one and two, rapid on-site assembly can be achieved, avoiding environmental constraints, shortening the construction period, stabilizing quality, reducing labor intensity, and meeting the urgent needs of modern bridge engineering for efficient construction.

[0013] 2. By setting up wing plates, the longitudinal panels can be rigidly limited to prevent horizontal displacement and ensure assembly accuracy. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the steel beam and bridge deck components of this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the components of this utility model, including the crossbeam, the second casting hole, and the wing plate.

[0017] Figure 4 This is a three-dimensional structural diagram of the horizontal panel component of this utility model.

[0018] Figure 5 This utility model Figure 1 An explosion diagram.

[0019] Figure 6 This is a partial sectional view of the bridge deck and transverse panel components of this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Steel beam; 101. Casting hole one; 2. Bridge deck; 3. Crossbeam; 301. Casting hole two; 302. Wing plate; 4. Longitudinal panel; 5. Transverse panel. Detailed Implementation

[0021] Example: A prefabricated steel plate bridge composite structure, such as Figures 1-6As shown, the structure includes steel beams 1, bridge deck 2, crossbeams 3, flanges 302, longitudinal panels 4, and transverse panels 5. Two steel beams 1 are arranged side-by-side. Each steel beam 1 has a row of intermittently spaced casting holes 101 on its upper part. A bridge deck 2 is inserted into the upper part of each steel beam 1, covering a corresponding row of casting holes 101. A crossbeam 3 is horizontally spliced ​​between the two steel beams 1. The bottom widths of the steel beams 1 and the crossbeam 3 are the same. Eighteen vertically distributed casting holes 301 are formed on the crossbeam 3. The dimensions of the casting holes 101 and the casting holes 301 are the same. Four flanges 302 are fixedly connected to the crossbeam 3, distributed front and rear. The longitudinal panels 4 are inserted into the crossbeam 3. The four flanges 302 are distributed on the left and right sides of the longitudinal panels 4 and are tightly attached to the longitudinal panels 4 to prevent horizontal displacement of the longitudinal panels 4. The top surface of plate 302 is flush with the top surface of longitudinal panel 4, and wing plate 302 is made of high-strength steel plate, with high structural rigidity and strong shear resistance. The longitudinal panel 4 covers the fourteen casting holes 301 of wing plate 302. The transverse panel 5 is fixedly connected to the top of longitudinal panel 4. The transverse panel 5 is a T-shaped structure and is embedded between two bridge panels 2. The top surface width of bridge panels 2 and transverse panel 5 is the same. The top surfaces of steel beam 1 and crossbeam 3 are at the same horizontal height. The two ends of the upper part of crossbeam 3 are respectively inserted into two bridge panels 2 and transverse panel 5. The two bridge panels 2 and transverse panel 5 cover the four casting holes 301 of wing plate 302. Specifically, the two bridge panels 2 cover the two casting holes 301 located on the outer side, and the transverse panel 5 covers the two casting holes 301 located on the inner side.

[0022] In use, first, the crossbeam 3 is embedded between the two steel beams 1, so that the top surfaces of the steel beams 1 and the crossbeam 3 are at the same horizontal level. Then, the two bridge deck panels 2, the longitudinal panel 4, and the transverse panel 5 are assembled in sequence. The two bridge deck panels 2 are respectively inserted into the upper part of the two steel beams 1, and respectively cover the row of pre-reserved casting holes on the upper part of the two steel beams 1. The longitudinal panel 4 is inserted into the crossbeam 3, and its left and right sides are limited and constrained by four flanges 302. The transverse panel 5 is embedded in the gap between the two bridge deck panels 2. At this time, the two upper end faces of the crossbeam 3 are respectively inserted into Two bridge deck panels 2 and a transverse panel 5 are installed. Then, wet joints are poured between the two bridge deck panels 2 and the two steel beams 1, and between the longitudinal panel 4 and the transverse beam 3. During pouring, the concrete flows into the pouring hole 101 and the pouring hole 201. After the concrete in the wet joints, the pouring hole 101 and the pouring hole 201 has solidified, the two steel beams 1, the two bridge deck panels 2, the transverse beam 3, the longitudinal panel 4 and the transverse panel 5 are firmly bonded together, forming an integrated and coordinated force-bearing system, realizing rapid on-site assembly and meeting the construction efficiency requirements.

Claims

1. A prefabricated steel plate bridge composite structure, characterized in that, The structure includes steel beams (1), bridge deck (2), crossbeams (3), flanges (302), longitudinal panels (4), and transverse panels (5). Two steel beams (1) are arranged side by side. Each steel beam (1) has a row of intermittently distributed casting holes (101) on its upper part. A bridge deck (2) is inserted into the upper part of each steel beam (1). The bridge deck (2) covers a corresponding row of casting holes (101). A crossbeam (3) is spliced ​​between the two steel beams (1). Multiple vertically distributed casting holes (301) are opened on the crossbeam (3). 1) With the same size as the second pouring hole (301), multiple front and rear wing plates (302) are fixed on the crossbeam (3). The longitudinal panel (4) is inserted into the crossbeam (3). Multiple wing plates (302) are distributed on both sides of the longitudinal panel (4) and are close to the longitudinal panel (4). The top surface of the wing plate (302) is flush with the top surface of the longitudinal panel (4). The longitudinal panel (4) covers multiple second pouring holes (301) with a position lower than the wing plate (302). The transverse panel (5) is fixed on the top of the longitudinal panel (4) and is embedded between the two bridge panels (2).

2. The prefabricated steel plate bridge composite structure according to claim 1, characterized in that, The bottom width of the steel beam (1) is the same as that of the crossbeam (3).

3. The prefabricated steel plate bridge composite structure according to claim 2, characterized in that, The wing plate (302) is made of high-strength steel plate.

4. The prefabricated steel plate bridge composite structure according to claim 3, characterized in that, The top surfaces of the steel beam (1) and the crossbeam (3) are at the same horizontal height. The two ends of the upper part of the crossbeam (3) are respectively inserted into the two bridge decks (2) and the transverse decks (5). The two bridge decks (2) and the transverse decks (5) respectively cover the multiple casting holes (301) that are higher than the wing plate (302).

5. The prefabricated steel plate bridge composite structure according to claim 4, characterized in that, The horizontal panel (5) has a T-shaped structure.

6. The prefabricated steel plate bridge composite structure according to claim 5, characterized in that, The top width of the bridge deck (2) is the same as that of the transverse deck (5).

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