Truss type side-span T-beam hogging moment notch cover plate

Abstract

The utility model provides a truss type side span T beam hogging moment notch cover plate which comprises an upper cover plate arranged in a top plate flange plate notch in parallel, the outer side of the upper cover plate is bent downwards to form a side cover plate, and a first L-shaped truss, a second L-shaped truss and a third L-shaped truss are arranged between the edge of the upper cover plate and the edge of the side cover plate and fixedly connected. The first L-shaped truss, the second L-shaped truss and the third L-shaped truss are fixedly connected through reinforcing rod assemblies. By means of the truss type cover plate device, the problems that reinforced concrete is wasted and construction materials are consumed due to direct pouring of traditional T-beam side span hogging moment can be solved; the truss-type side-span T-beam hogging moment notch cover plate is provided, the condition that one person can rapidly conduct installation on a T-beam formwork can be achieved, the formwork installation efficiency, quality and safety risk are greatly improved, and the truss-type side-span T-beam hogging moment notch cover plate has good applicability to hogging moment cover plates of side-span T-beams of the same type.

Description

Technical Field

[0001] This utility model belongs to the technical field of negative bending moment sealing in the construction of precast T-beams for bridges, specifically relating to a negative bending moment slot cover plate for a truss-type side span T-beam. Background Technology

[0002] In bridge construction, precast T-beams are often composed of 3-4 spans forming a continuous structure. During construction, in order to eliminate the adverse effects of negative bending moments at the supports on the beam, negative bending moment prestressed steel strands are set below the flange plate of the T-beam. The side span T-beams only have negative bending moments at one end. However, in order to ensure the lowest cost and maximum efficiency of the formwork, the formwork is usually designed according to the design of the middle span beam, with negative bending moment slot areas set at both ends of the formwork. When precasting the side span T-beams, there is a spare space of 6 slots, which leads to a waste of steel bars and concrete at the slot positions of the side span T-beams. Utility Model Content

[0003] The purpose of this utility model is to provide a truss-type negative moment slot cover plate for side span T-beams. This truss-type cover plate device can overcome the waste of reinforced concrete caused by direct pouring of negative moment slots in the side spans of traditional T-beams, thus saving on construction material consumption. The truss-type negative moment slot cover plate for side span T-beams allows for rapid installation by one person on the T-beam formwork, greatly improving the efficiency, quality, and safety of formwork installation. It also has good applicability to negative moment cover plates for similar side span T-beams.

[0004] To achieve the above-mentioned technical features, the purpose of this utility model is as follows: a truss-type side span T-beam negative bending moment slot cover plate, including an upper cover plate arranged parallel to the slot of the top plate flange plate, the outer side of the upper cover plate is bent downward to form a side cover plate, and a first L-shaped truss, a second L-shaped truss and a third L-shaped truss are fixedly connected between the edges of the upper cover plate and the side cover plate; the first L-shaped truss, the second L-shaped truss and the third L-shaped truss are fixedly connected by a reinforcing rod assembly.

[0005] The top cover and the side cover are connected by an arc-shaped plate.

[0006] The length and width spacing of the upper cover plate are determined according to the required width of the negative bending moment slot;

[0007] The width and height spacing of the side cover plates are determined according to the required dimensions of the negative bending moment slots;

[0008] The structural dimensions of the top cover plate and side cover plate enable them to cover the negative bending moment slot, thus ensuring a tight joint with the overall formwork of the T-beam.

[0009] The first L-shaped truss includes a first truss rod fixed to the inner wall of the upper cover plate, a second truss rod welded to one end of the first truss rod, and the other end of the second truss rod welded to the inner wall of the side cover plate.

[0010] The second L-shaped truss includes a third truss rod fixed to the inner wall of the upper cover plate, a fourth truss rod welded to one end of the third truss rod, and the other end of the fourth truss rod welded to the inner wall of the side cover plate.

[0011] The third L-shaped truss includes a fifth truss rod fixed to the inner wall of the upper cover plate, a sixth truss rod welded to one end of the fifth truss rod, and the other end of the sixth truss rod welded to the inner wall of the side cover plate.

[0012] The first L-shaped truss, the second L-shaped truss, and the third L-shaped truss are all made of angle steel material cut and welded.

[0013] The reinforcing rod assembly includes a first connecting rod that connects the first truss rod, the third truss rod, and the fifth truss rod simultaneously, and a second connecting rod that connects the second truss rod, the fourth truss rod, and the sixth truss rod simultaneously;

[0014] It also includes a third connecting rod located at the top corner of the first L-shaped truss, the second L-shaped truss, and the third L-shaped truss.

[0015] The second truss rod is provided with multiple sets of first bolt holes;

[0016] The fourth truss member has multiple sets of second bolt holes;

[0017] The sixth truss member has multiple sets of third bolt holes;

[0018] The first bolt hole, the second bolt hole, and the third bolt hole are bolted to the precast T-beam slot template by bolts, and are matched and positioned to ensure accurate positioning and achieve a tight fit between the slot cover plate and the T-beam template.

[0019] The present invention has the following beneficial effects:

[0020] 1. The convenient truss-type side span T-beam negative bending moment slot cover plate device provided by this utility model achieves precise control of the slot template installation by adopting the above-mentioned structure. During use, by performing installation work on the top plate, it can effectively control the template deformation caused by human factors. By fixing it with bolts, it can effectively avoid problems such as displacement. At the same time, while ensuring construction efficiency, it also ensures the standardized and civilized construction image of the construction site.

[0021] 2. This utility model is simple to assemble, highly safe to use, greatly reduces material waste caused by human factors, eliminates material waste, saves construction costs, and improves construction efficiency, which has great advantages compared with existing technologies.

[0022] 3. The structural dimensions of the top and side cover plates ensure that they can cover the negative bending moment slot, thus achieving a tight joint with the overall T-beam formwork. This dimensional fit ensures that the top and side cover plates effectively cover the negative bending moment slot, resulting in a smooth and flat surface. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Figure 1 This is a first-person three-dimensional result diagram of this utility model.

[0025] Figure 2 This is a two-dimensional result diagram from the second perspective of this utility model.

[0026] Figure 3 This is a three-dimensional result diagram from the third perspective of this utility model.

[0027] Figure 4 This is a structural diagram of the top cover and side cover of this utility model.

[0028] Figure 5 This is a connection structure diagram of the first L-shaped truss, the second L-shaped truss, and the third L-shaped truss of this utility model.

[0029] In the diagram: 1. Top cover plate; 2. Side cover plate; 3. First L-shaped truss; 4. Second L-shaped truss; 5. Third L-shaped truss; 6. Reinforcing rod assembly; 8. Curved plate.

[0030] First truss member 301, second truss member 302;

[0031] Third truss member 401, fourth truss member 402;

[0032] Fifth truss member 501, sixth truss member 502;

[0033] First connecting rod 601, third connecting rod 602, second connecting rod 603;

[0034] First bolt hole 701, second bolt hole 702, third bolt hole 703. Detailed Implementation

[0035] The embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0036] like Figure 1-5As shown, a truss-type negative moment slot cover for a side span T-beam includes an upper cover plate 1 arranged parallel to the slot of the top flange plate. The outer side of the upper cover plate 1 is bent downward to form a side cover plate 2. A first L-shaped truss 3, a second L-shaped truss 4, and a third L-shaped truss 5 are fixedly connected between the edges of the upper cover plate 1 and the side cover plate 2. The first L-shaped truss 3, the second L-shaped truss 4, and the third L-shaped truss 5 are fixedly connected by a reinforcing rod assembly 6. This truss-type cover plate device can overcome the waste of reinforced concrete caused by direct pouring of negative moment slots in the side spans of traditional T-beams, saving on construction material consumption. The truss-type negative moment slot cover for side span T-beams allows for rapid installation by one person on the T-beam formwork, greatly improving formwork installation efficiency, quality, and safety risks. It also has good applicability to negative moment covers for similar side span T-beams.

[0037] Furthermore, the upper cover plate 1 and the side cover plate 2 are connected by an arc-shaped plate 8. The arc-shaped plate 8 ensures that a rounded transition can be formed at the corners during the subsequent casting process.

[0038] Furthermore, the length and width spacing of the upper cover plate 1 are determined according to the required width of the negative bending moment slot, and the width and height spacing of the side cover plates 2 are determined according to the required size of the negative bending moment slot. Through the structural dimensions of the upper cover plate 1 and the side cover plate 2, they can cover the negative bending moment slot, thus ensuring a tight joint with the overall T-beam formwork. This dimensional matching structure ensures that the upper cover plate 1 and the side cover plate 2 can effectively cover the negative bending moment slot, resulting in a smooth and flat surface.

[0039] Furthermore, the first L-shaped truss 3 includes a first truss rod 301 fixed to the inner wall of the upper cover plate 1, a second truss rod 302 welded to one end of the first truss rod 301, and the other end of the second truss rod 302 welded to the inner wall of the side cover plate 2. The first L-shaped truss 3 described above enables reliable fixing between the upper cover plate 1 and the side cover plate 2.

[0040] Furthermore, the second L-shaped truss 4 includes a third truss rod 401 fixed to the inner wall of the upper cover plate 1, a fourth truss rod 402 welded to one end of the third truss rod 401, and the other end of the fourth truss rod 402 welded to the inner wall of the side cover plate 2. The second L-shaped truss 4 described above enables reliable fixing between the upper cover plate 1 and the side cover plate 2.

[0041] Furthermore, the third L-shaped truss 5 includes a fifth truss rod 501 fixed to the inner wall of the upper cover plate 1, a sixth truss rod 502 welded to one end of the fifth truss rod 501, and the other end of the sixth truss rod 502 welded to the inner wall of the side cover plate 2. The aforementioned third L-shaped truss 5 enables reliable fixing between the upper cover plate 1 and the side cover plate 2.

[0042] Furthermore, the first L-shaped truss 3, the second L-shaped truss 4, and the third L-shaped truss 5 are all made of angle steel, cut and welded. The materials are simple to source, easy to process, and have a good appearance.

[0043] Furthermore, the upper cover plate 1 and the side cover plate 2 are made of stainless steel plates bent into shape, which is simple to source, easy to process, and has a good appearance.

[0044] Furthermore, the reinforcing rod assembly 6 includes a first connecting rod 601 that simultaneously connects the first truss rod 301, the third truss rod 401, and the fifth truss rod 501, and a second connecting rod 603 that simultaneously connects the second truss rod 302, the fourth truss rod 402, and the sixth truss rod 502. The first connecting rod 601 and the second connecting rod 603 enhance the strength and stability of the connection structure at the ends of the first L-shaped truss 3, the second L-shaped truss 4, and the third L-shaped truss 5.

[0045] Furthermore, it also includes a third link 602 disposed at the apex of the first L-shaped truss 3, the second L-shaped truss 4, and the third L-shaped truss 5. The aforementioned third link 602 enhances the structural strength of the apex of the first L-shaped truss 3, the second L-shaped truss 4, and the third L-shaped truss 5.

[0046] Furthermore, the second truss rod 302 is provided with multiple sets of first bolt holes 701; the fourth truss rod 402 is provided with multiple sets of second bolt holes 702; and the sixth truss rod 502 is provided with multiple sets of third bolt holes 703. The first bolt holes 701, second bolt holes 702 and third bolt holes 703 are bolted to the precast T-beam slot template by bolts, and are matched and positioned with each other to ensure accurate positioning and achieve tight fit between the slot cover plate and the T-beam template.

[0047] The working process and principle of this utility model:

[0048] In use, the processed groove cover plate is placed on the negative bending moment template, and then bolted to the T-beam integral template through the simple first L-shaped truss 3, second L-shaped truss 4 and third L-shaped truss 5 and the first bolt hole 701, second bolt hole 702 and third bolt hole 703 on the transverse angle steel, thus finally realizing the installation of the negative bending moment groove cover plate of the side span T-beam.

Claims

1. A negative bending moment slot cover plate for a truss-type side span T-beam, characterized in that, The upper cover plate (1) is arranged in parallel with the groove of the top flange plate. The outer side of the upper cover plate (1) is bent downward to form a side cover plate (2). A first L-shaped truss (3), a second L-shaped truss (4) and a third L-shaped truss (5) are fixedly connected between the edges of the upper cover plate (1) and the side cover plate (2). The first L-shaped truss (3), the second L-shaped truss (4) and the third L-shaped truss (5) are fixedly connected by a reinforcing rod assembly (6).

2. The truss-type side span T-beam negative bending moment slot cover plate according to claim 1, characterized in that: The upper cover plate (1) and the side cover plate (2) are connected by an arc plate (8).

3. The truss-type side span T-beam negative bending moment slot cover plate according to claim 1, characterized in that: The length and width spacing of the upper cover plate (1) are determined according to the width of the required negative bending moment slot; The width and height spacing of the side cover plate (2) are determined according to the required dimensions of the negative bending moment slot; The structural dimensions of the top cover plate (1) and the side cover plate (2) enable the top cover plate (1) and the side cover plate (2) to cover the negative bending moment slot, thereby ensuring a tight joint with the overall template of the T-beam.

4. The truss-type side span T-beam negative bending moment slot cover plate according to claim 1, characterized in that: The first L-shaped truss (3) includes a first truss rod (301) fixed on the inner wall of the upper cover plate (1), a second truss rod (302) is welded and fixed to the end of the first truss rod (301), and the other end of the second truss rod (302) is welded and fixed to the inner wall of the side cover plate (2). The second L-shaped truss (4) includes a third truss rod (401) fixed on the inner wall of the upper cover plate (1), and a fourth truss rod (402) is welded and fixed to the end of the third truss rod (401). The other end of the fourth truss rod (402) is welded and fixed to the inner wall of the side cover plate (2). The third L-shaped truss (5) includes a fifth truss rod (501) fixed on the inner wall of the upper cover plate (1), and a sixth truss rod (502) is welded and fixed to the end of the fifth truss rod (501). The other end of the sixth truss rod (502) is welded and fixed to the inner wall of the side cover plate (2).

5. The truss-type side span T-beam negative bending moment slot cover plate according to claim 4, characterized in that: The first L-shaped truss (3), the second L-shaped truss (4) and the third L-shaped truss (5) are all cut and welded from angle steel.

6. The truss-type side span T-beam negative bending moment slot cover plate according to claim 4, characterized in that: The reinforcing rod assembly (6) includes a first connecting rod (601) that connects the first truss rod (301), the third truss rod (401) and the fifth truss rod (501) simultaneously, and a second connecting rod (603) that connects the second truss rod (302), the fourth truss rod (402) and the sixth truss rod (502) simultaneously. It also includes a third link (602) located at the top corner of the first L-shaped truss (3), the second L-shaped truss (4) and the third L-shaped truss (5).

7. The truss-type side span T-beam negative bending moment slot cover plate according to claim 4, characterized in that: The second truss rod (302) is provided with multiple sets of first bolt holes (701); The fourth truss rod (402) is provided with multiple sets of second bolt holes (702); The sixth truss member (502) is provided with multiple sets of third bolt holes (703); The first bolt hole (701), the second bolt hole (702) and the third bolt hole (703) are bolted to the precast T-beam slot template by bolts, and are matched and positioned to ensure accurate positioning and achieve tight fit between the slot cover plate and the T-beam template.

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