Municipal road bridge simply supported beam construction structure

Abstract

The utility model relates to the technical field of municipal bridges, in particular to a municipal road bridge simply supported beam construction structure which comprises bases evenly distributed on the ground, the top ends of the bases are fixedly connected with supporting blocks, the top ends of the supporting blocks are fixedly connected with stand columns, and the top ends of the stand columns are slidably connected with beam plates. Arc-shaped steel frames which are symmetrically distributed are arranged on the outer wall of the supporting block, the arc-shaped steel frames are connected with horizontal reinforcing plates through supporting structures, and fixing rods which are symmetrically distributed are fixedly connected to the outer wall of the supporting block. The arc-shaped steel frames, the connecting columns and the supporting blocks which are connected through the bolts are connected, so that the bottom end of the beam plate is connected with the supporting structure, the supporting force of the middle end of the beam plate can be enhanced, bending is avoided, and the risk of bridge floor breakage is greatly reduced; and installation and positioning of the beam plate can be facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of municipal bridges, in particular to a simply supported beam construction structure of a municipal road bridge. Background Art

[0002] A simply supported beam of a bridge refers to a bridge structure in which both ends of the beam are placed on supports, the supports only constrain the vertical displacement of the beam, and the ends of the beam can rotate freely. Specifically, in order to prevent the entire beam from moving horizontally, a horizontal constraint is added at one end. The support at this end is called a hinge support, and the support at the other end without horizontal constraints is called a rolling support. A simply supported beam is a supporting structure in which the supports at both ends only provide vertical constraints but no angular constraints. A simply supported beam has the advantages of simple force, stable structure, and convenient construction. It is a bridge structure form widely used in the construction structure of simply supported beams of municipal road bridges. In bridge engineering, a simply supported beam bridge is a common type of bridge in the construction structure of simply supported beams of municipal road bridges. It has a simple structure and clear force, and is suitable for various geological conditions and span requirements. At the same time, simply supported beam bridges also have high economy and applicability, so they have been widely used in engineering design.

[0003] A municipal road bridge simply supported beam construction structure with application number CN202222159535.6 comprises four pillars, the upper ends of the four pillars are slidably connected with a beam, the surface of the pillar is provided with a filling structure, the filling structure comprises a limit cover, the limit cover is located on the side where the beam and the pillar are close to each other, the lower end surface of the limit cover is evenly fixedly connected with a plurality of positioning rods, the upper end surface of the pillar is evenly provided with a plurality of positioning holes, the size of the positioning holes is adapted to the size of the positioning rods, a limit ring is fixedly installed on the lower surface of the beam, the surface of the limit cover is provided with a reserved hole, the inner wall of the reserved hole is fixedly installed with an elastic cloth, the surface of the elastic cloth is provided with a circular hole, and a plurality of steel bars are evenly fixedly installed inside the pillar.

[0004] The above patent document has the beneficial effect of solving the problem of misalignment that is prone to occur during the docking process of bridges using cranes. However, the beams on the bridge deck lack corresponding support under the bottom middle part, and are prone to bending under long-term load, which may lead to the risk of bridge deck fracture. Utility Model Content

[0005] The utility model aims to solve the shortcomings of the existing beams on the bridge deck, such as the lack of corresponding support under the middle bottom, easy bending under long-term load, and the risk of bridge deck fracture, and proposes a simply supported beam construction structure for municipal road bridges.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A simply supported beam construction structure for a municipal road bridge comprises a base placed evenly distributed on the ground, the top of the base is fixedly connected to a support block, the top of the support block is fixedly connected to a column, the top of the column is slidably connected to a beam plate, the outer wall of the support block is provided with symmetrically distributed arc-shaped steel frames, the arc-shaped steel frames are connected to horizontal reinforcement plates through a supporting structure, and the outer wall of the support block is fixedly connected to symmetrically distributed fixing rods.

[0008] Preferably, the supporting structure includes evenly distributed mounting plates, bolts, side beams, connecting columns and connecting plates; the mounting plates are fixedly connected to both ends of the arc-shaped steel frame; the bolts are threadedly connected to the mounting plates and support blocks; the bottom end of the side beams is fixedly connected to the top end of the arc-shaped steel frame; the two ends of the connecting columns are fixedly connected to the connecting plates; and the connecting plates are fixedly connected to the outer walls of the arc-shaped steel frame.

[0009] Preferably, the mounting plate is slidably connected to the outer wall of the support block, the top end of the side beam is fixedly connected to the bottom end of the horizontal reinforcement plate, and the connecting plate is bolted to the outer wall of the arc-shaped steel frame.

[0010] Preferably, a bottom groove is opened at the bottom end of the beam plate, and evenly distributed positioning grooves are opened at the bottom end of the beam plate. A load-bearing block is fixedly connected to the middle end of the horizontal reinforcement plate, and evenly distributed positioning gaskets are fixedly connected to the top end of the horizontal reinforcement plate.

[0011] Preferably, the bottom groove is slidably connected to the load-bearing block, and the positioning gasket is adapted to the position and size of the positioning groove and is slidably connected thereto.

[0012] Preferably, the top end of the column is provided with an auxiliary hole, the bottom end of the beam plate is fixedly connected with evenly distributed mounting columns, and the auxiliary holes are slidably connected to the mounting columns.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] When the utility model is in use, the arc-shaped steel frame, the connection columns and the support blocks connected by bolts can be connected to the bottom end of the beam plate with a supporting structure, which can enhance the supporting force of the middle end of the beam plate and avoid bending, thereby greatly reducing the risk of bridge deck fracture. The use of horizontal reinforcement plates and installation columns, auxiliary holes, positioning gaskets, etc. can help the installation and positioning of the beam plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional structural schematic diagram of a municipal road bridge simply supported beam construction structure proposed by the utility model;

[0016] Figure 2 A schematic diagram of a half-section three-dimensional structure of a municipal road bridge simply supported beam construction structure proposed by the utility model;

[0017] Figure 3 It is a right view of a simply supported beam construction structure of a municipal road bridge proposed by the utility model.

[0018] In the figure: 1 base, 2 support block, 3 column, 4 beam plate, 5 arc steel frame, 6 horizontal reinforcement plate, 7 fixing rod, 8 mounting plate, 9 bolt, 10 side beam, 11 bottom groove, 12 load-bearing block, 13 positioning groove, 14 positioning gasket, 15 auxiliary hole, 16 mounting column, 17 connecting column, 18 connecting plate. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0020] Reference Figure 1-Figure 3 A simply supported beam construction structure for a municipal road bridge comprises a base 1 placed evenly distributed on the ground, a support block 2 is fixedly connected to the top of the base 1, a column 3 is fixedly connected to the top of the support block 2, a beam plate 4 is slidably connected to the top of the column 3, and an outer wall of the support block 2 is provided with a symmetrically distributed arc steel frame 5, the arc steel frame 5 is connected to a horizontal reinforcement plate 6 through a supporting structure, and a symmetrically distributed fixing rod 7 is fixedly connected to the outer wall of the support block 2.

[0021] Furthermore, the supporting structure includes evenly distributed mounting plates 8, bolts 9, side beams 10, connecting columns 17, and connecting plates 18. The mounting plates 8 are fixedly connected to both ends of the arc-shaped steel frame 5. The bolts 9 are threadedly connected to the mounting plates 8 and the supporting blocks 2. The bottom ends of the side beams 10 are fixedly connected to the top ends of the arc-shaped steel frame 5. Both ends of the connecting columns 17 are fixedly connected to the connecting plates 18. The connecting plates 18 are fixedly connected to the outer walls of the arc-shaped steel frame 5.

[0022] The arc-shaped steel frame 5 is arranged in an arch shape, and the side beams 10 on both sides of the top end play a role of auxiliary support for the arc-shaped steel frame 5 , so as to increase the strength of the arc-shaped steel frame 5 .

[0023] Furthermore, the mounting plate 8 is slidably connected to the outer wall of the support block 2 , the top end of the side beam 10 is fixedly connected to the bottom end of the horizontal reinforcement plate 6 , and the connecting plate 18 is bolted to the outer wall of the arc-shaped steel frame 5 .

[0024] The two ends of the horizontal reinforcing plate 6 are connected to the outer wall of the column 2 by welding.

[0025] Furthermore, a bottom groove 11 is opened at the bottom end of the beam 4, and positioning grooves 13 are opened at the bottom end of the beam 4. A load-bearing block 12 is fixedly connected to the middle end of the horizontal reinforcement plate 6, and a positioning gasket 14 is fixedly connected to the top end of the horizontal reinforcement plate 6.

[0026] The horizontal reinforcement plate 6 and the arc-shaped steel plate 5 are assembled and welded to form in advance, and then installed under the bridge.

[0027] Furthermore, the bottom groove 11 is slidably connected to the load-bearing block 12 , and the positioning gasket 14 is adapted to the position and size of the positioning groove 13 and is slidably connected thereto.

[0028] Among them, the positioning gasket 14 and the load-bearing block 12 can support the middle end pressure of the beam slab 4 while playing an auxiliary positioning role. The load-bearing block 12 is fixedly connected to the middle ends of the horizontal reinforcement plate 6 and the arc-shaped steel plate 5 respectively.

[0029] Furthermore, an auxiliary hole 15 is opened at the top of the column 3, and the bottom end of the beam plate 4 is fixedly connected with evenly distributed mounting columns 16, and the auxiliary holes 15 are slidably connected to the mounting columns 16.

[0030] When the beam slab 4 is installed, it is first positioned and installed through the installation column 16 and the auxiliary hole 15 at the bottom end of the beam slab 4, and then the supporting structure is installed.

[0031] Working principle: First, lay a good foundation, pour and build the base 1, support block 2 and column 3, where the top of the column 3 is provided with an auxiliary hole 15, then hoist the beam 4 for installation, align the installation column 16 with the auxiliary hole 15 for installation, then weld and assemble the arc steel frame 5, horizontal reinforcement plate 6 and side beam 10 together into a support structure, and then align the load-bearing block 12 on the support structure with the bottom groove 11, and align the positioning gasket 14 with the positioning groove 13 for installation, connect the mounting plate 8 with the support block 2 by bolts 9, and connect the two supporting structures by connecting columns 17 and connecting plates 18 to increase the supporting strength, thereby enhancing the mid-end supporting force of the beam, avoiding bending, and greatly reducing the risk of bridge deck fracture. The use of horizontal reinforcement plates and mounting columns, auxiliary holes, positioning gaskets, etc. can help the installation and positioning of the beam.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A simply supported beam construction structure for a municipal road bridge, comprising a base (1) placed on the ground and evenly distributed, characterized in that: The top of the base (1) is fixedly connected to a support block (2), the top of the support block (2) is fixedly connected to a column (3), the top of the column (3) is slidably connected to a beam plate (4), the outer wall of the support block (2) is provided with symmetrically distributed arc-shaped steel frames (5), the arc-shaped steel frames (5) are connected to horizontal reinforcement plates (6) through a supporting structure, and the outer wall of the support block (2) is fixedly connected to symmetrically distributed fixing rods (7).

2. A municipal road bridge simply supported beam construction structure according to claim 1, characterized in that: The support structure comprises a mounting plate (8), bolts (9), side beams (10), connecting columns (17), and connecting plates (18) which are evenly distributed; the mounting plate (8) is fixedly connected to both ends of the arc-shaped steel frame (5); the bolts (9) are threadedly connected to the mounting plate (8) and the support block (2); the bottom end of the side beam (10) is fixedly connected to the top end of the arc-shaped steel frame (5); the two ends of the connecting column (17) are fixedly connected to the connecting plate (18); and the connecting plate (18) is fixedly connected to the outer wall of the arc-shaped steel frame (5).

3. A municipal road bridge simply supported beam construction structure according to claim 2, characterized in that: The mounting plate (8) is slidably connected to the outer wall of the support block (2), the top end of the side beam (10) is fixedly connected to the bottom end of the horizontal reinforcement plate (6), and the connecting plate (18) is bolted to the outer wall of the arc-shaped steel frame (5).

4. A municipal road bridge simply supported beam construction structure according to claim 1, characterized in that: The bottom end of the beam plate (4) is provided with a bottom groove (11), the bottom end of the beam plate (4) is provided with evenly distributed positioning grooves (13), the middle end of the horizontal reinforcement plate (6) is fixedly connected with a load-bearing block (12), and the top end of the horizontal reinforcement plate (6) is fixedly connected with evenly distributed positioning gaskets (14).

5. A municipal road bridge simply supported beam construction structure according to claim 4, characterized in that: The bottom groove (11) is slidably connected to the load-bearing block (12), and the positioning gasket (14) is adapted to the position and size of the positioning groove (13) and is slidably connected thereto.

6. The municipal road bridge simply supported beam construction structure according to claim 1, characterized in that: The top end of the upright column (3) is provided with an auxiliary hole (15), the bottom end of the beam plate (4) is fixedly connected with evenly distributed mounting columns (16), and the auxiliary hole (15) is slidably connected to the mounting columns (16).

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