Fabricated steel trestle plate structure

Abstract

The utility model discloses an assembly type steel trestle plate structure which comprises at least two concrete supporting beams, an assembly type steel trestle plate placed on the two concrete supporting beams and rubber pads arranged between the concrete supporting beams and the assembly type steel trestle plate. The two ends of the assembly type steel trestle plate penetrate through the rubber pads through a plurality of embedded bolts to be anchored to the concrete supporting beams, and the embedded bolts sink into the assembly type steel trestle plate. The structural stability and reliability of the assembly type steel trestle plate installed on the concrete supporting beam can be improved, and noise pollution caused by dynamic loads generated when vehicles pass through a bridge floor can be overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of building engineering, in particular to an assembled steel trestle board structure. Background Art

[0002] Prefabricated steel trestle panels are usually hoisted and placed on concrete support beams. The contact surface between the two sides of the prefabricated steel trestle panels and the concrete support beams needs to be greater than or equal to 200mm to ensure the reliability of its installation. Fine stone concrete is filled and poured in the empty area between the end face of the prefabricated steel trestle panel and the concrete support beam as the limit at both ends. Since the surface of the concrete support beam constructed on site is not 100% flat, there is a certain gap between the prefabricated steel trestle panel and the concrete support beam. When the vehicle passes before and after the prefabricated steel trestle panel, the upper part of the prefabricated steel trestle panel bears the dynamic load brought by the passing of the vehicle. Due to the existence of the gap, the prefabricated steel trestle panel and the concrete support beam separate, contact and separate again, which produces greater noise pollution. Utility Model Content

[0003] The utility model aims to provide a fabricated steel trestle board structure to solve the problem of how to reduce the noise pollution caused by the dynamic load generated when vehicles pass through the fabricated steel trestle board.

[0004] In order to solve the above technical problems, the technical solution provided by the utility model is: an assembled steel trestle board structure, comprising: at least two concrete support beams, and an assembled steel trestle board resting on the two concrete support beams, a rubber pad arranged between the concrete support beams and the assembled steel trestle board, and both ends of the assembled steel trestle board are respectively anchored to the concrete support beams through the rubber pads by a plurality of embedded bolts, and the embedded bolts are sunk into the assembled steel trestle board.

[0005] Furthermore, the utility model provides an assembled steel trestle plate structure, in which both ends of the assembled steel trestle plate are provided with a plurality of bolt holes and bolt grooves thereon along the thickness direction, the size of the bolt grooves is larger than the bolt holes, the bolt grooves and the bolt holes are interconnected, the embedded bolts are anchored to the concrete support beams through the bolt grooves, the bolt holes, and rubber pads, and the embedded bolts are sunk into the bolt grooves.

[0006] Furthermore, in the assembled steel trestle board structure provided by the utility model, the bolt holes are strip-shaped holes, and the bolt grooves are strip-shaped grooves.

[0007] Furthermore, in the assembled steel trestle board structure provided by the utility model, the distance between the center of the bolt hole and the end surface of the assembled steel trestle board is 150 mm.

[0008] Furthermore, in the assembled steel trestle plate structure provided by the utility model, the embedded bolts are chemical bolts.

[0009] Furthermore, in the assembled steel trestle plate structure provided by the utility model, the embedded bolts are expansion bolts.

[0010] Furthermore, the utility model provides an assembled steel trestle board structure, wherein each end of the assembled steel trestle board is provided with three bolt holes and corresponding bolt grooves in a straight line along the width direction thereof.

[0011] Furthermore, the assembled steel trestle board structure provided by the utility model also includes a concrete limit block, which is arranged on the concrete support beam and contacts the end surface of the assembled steel trestle board.

[0012] Furthermore, in the assembled steel trestle plate structure provided by the utility model, the diameter of the embedded bolts is greater than 30 mm.

[0013] Furthermore, in the assembled steel trestle plate structure provided by the utility model, the depth of the embedded bolts anchored in the concrete support beam is more than 10d.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] The assembled steel trestle board structure provided by the utility model is fixedly arranged on the concrete support beam by embedding bolts, thereby reinforcing the assembled steel trestle board and improving the structural stability and reliability of the assembled steel trestle board installed on the concrete support beam. By setting a rubber pad between the concrete support beam and the assembled steel trestle board to fill the gap between the concrete support beam and the assembled steel trestle board due to the uneven surface of the concrete support beam, the dynamic load generated when the vehicle passes through the assembled steel trestle will not cause the assembled steel trestle board and the concrete support beam to separate, contact and separate again, thus overcoming the problem of noise pollution caused by the dynamic load generated by the vehicle passing through the bridge deck due to the existence of the gap. The embedded bolts are sunk into the assembled steel trestle board, which will not cause obstacles for vehicles to pass on the bridge deck of the assembled steel trestle board, thereby improving the safety of vehicle passage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a top view structural diagram of the assembled steel trestle plate structure;

[0017] Figure 2 It is a side view structural diagram of the fabricated steel trestle deck structure;

[0018] Figure 3 It is a schematic diagram of the node structure of the assembled steel trestle deck and the concrete support beam;

[0019] Figure 4 It is a schematic diagram of the top view of the bolt slot and bolt hole;

[0020] As shown in the figure:

[0021] 100. Fabricated steel trestle deck structure;

[0022] 110. Concrete support beam, 120. Prefabricated steel trestle plate, 130. Rubber pad, 140. Embedded bolts, 150. Bolt holes, 160. Bolt grooves, 170. Concrete limit blocks. DETAILED DESCRIPTION

[0023] The utility model is described in detail below in conjunction with the accompanying drawings: According to the following description, the advantages and features of the utility model will be more clearly understood. It should be noted that the accompanying drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the utility model.

[0024] Please refer to Figures 1 to 4 The embodiment of the utility model provides a prefabricated steel trestle board structure 100, comprising: at least two concrete support beams 110, and a prefabricated steel trestle board 120 placed on the two concrete support beams 110, a rubber pad 130 arranged between the concrete support beams 110 and the prefabricated steel trestle board 120, and both ends of the prefabricated steel trestle board 120 are respectively anchored on the concrete support beams 110 through the rubber pad 130 by a plurality of embedded bolts 140, and the embedded bolts 140 are sunk into the prefabricated steel trestle board 120.

[0025] The assembled steel trestle board structure 100 provided by the embodiment of the utility model fixes the assembled steel trestle board 120 on the concrete support beam 110 by embedding bolts 140, and the vertical fixing force generated by the fastening of the embedded bolts 140 and the assembled steel trestle board 120 is used to reinforce the assembled steel trestle board 120, thereby improving the structural stability and reliability of the assembled steel trestle board 120 installed on the concrete support beam 110. By setting the rubber pad 130 between the concrete support beam 110 and the assembled steel trestle board 120 to fill the gap between the concrete support beam 110 and the assembled steel trestle board 120 due to the uneven surface of the concrete support beam 110, the dynamic load generated when the vehicle passes through the assembled steel trestle will not cause the assembled steel trestle board 120 to separate, contact and separate again due to the buffering, shock absorption and noise reduction effects of the rubber pad 130, thereby overcoming the problem of noise pollution caused by the dynamic load generated by the vehicle passing through the bridge deck due to the existence of the gap. The embedded bolts 140 are sunk into the assembled steel trestle board 120 , which will not cause obstacles for vehicles passing on the bridge deck of the assembled steel trestle board 120 , thereby improving the safety of vehicle passage.

[0026] Please refer to Figures 1 to 4 In order to sink the embedded bolts 140 into the assembled steel trestle board 120, the assembled steel trestle board structure 100 provided by the utility model has a plurality of bolt holes 150 and bolt grooves 160 thereon opened at both ends of the assembled steel trestle board 120 along the thickness direction thereof, the bolt grooves 160 are larger than the bolt holes 150, the bolt grooves 160 and the bolt holes 150 are mutually connected, the embedded bolts 140 are anchored on the concrete support beam 110 through the bolt grooves 160, the bolt holes 150 and the rubber pads 130, and the embedded bolts 140 are sunk into the bolt grooves 160. Then, the embedded bolts 140 can be sunk into the bolt grooves 160 of the assembled steel trestle board 120.

[0027] In order to adjust the position of the assembled steel trestle board 120 placed on the concrete support beam 110 and avoid gaps between the assembled steel trestle boards 120, the assembled steel trestle board structure 100 provided by the embodiment of the utility model has the bolt hole 150 as a strip hole and the bolt groove 160 as a strip groove. The size of the bolt hole 150 can be 70 (length) × 40 (width) × 250 (height), and the size of the bolt groove 160 can be 100 (length) × 70 (width) × 125 (height).

[0028] Please refer to Figure 1 to Figure 2 In the assembled steel trestle board structure 100 provided by the embodiment of the utility model, the distance between the center of the bolt hole 150 and the end surface of the assembled steel trestle board 120 is 150 mm, so as to meet the requirement that the contact surface of the assembled steel trestle board 120 resting on the concrete support beam 100 meets the requirement of more than 200 mm.

[0029] In order to improve the reliability of anchoring the embedded bolts 140 on the concrete support beams 110 , in the assembled steel trestle plate structure 100 provided by the embodiment of the utility model, the embedded bolts 140 may be chemical bolts or expansion bolts.

[0030] Please refer to Figure 1 In order to improve the reliability of the connection between the assembled steel trestle board 120 and the concrete support beam 110, the assembled steel trestle board structure 100 provided in the embodiment of the utility model has three bolt holes 150 and corresponding bolt grooves 160 arranged in a straight line at each end of the assembled steel trestle board 120 along its width direction.

[0031] Please refer to Figure 3 In order to limit the two ends of the assembled steel trestle board 120, the assembled steel trestle board structure 100 provided in the embodiment of the utility model also includes a concrete limit block 170, which is arranged on the concrete support beam 110 and contacts the end surface of the assembled steel trestle board 120.

[0032] In order to improve the anchoring strength, in the assembled steel trestle plate structure 100 provided by the embodiment of the utility model, the diameter of the embedded bolts 140 is greater than 30 mm, and the depth of the embedded bolts 140 anchored in the concrete support beam 110 is greater than 10 d.

[0033] The present utility model is not limited to the above-mentioned specific implementation modes. Obviously, the above-mentioned embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the described embodiments of the present utility model belong to the scope of protection of the present utility model. Those skilled in the art can make other levels of modifications and changes to the present utility model. In this way, if these modifications and changes of the present utility model fall within the scope of the claims of the present utility model, the present utility model is also intended to include these changes and changes.

Claims

1. An assembled steel trestle board structure, characterized in that: include: At least two concrete support beams, and a prefabricated steel trestle plate resting on the two concrete support beams, a rubber pad arranged between the concrete support beams and the prefabricated steel trestle plate, both ends of the prefabricated steel trestle plate are respectively anchored to the concrete support beams through the rubber pads by a plurality of embedded bolts, and the embedded bolts are sunk into the prefabricated steel trestle plate.

2. The assembled steel trestle plate structure according to claim 1 is characterized in that: Both ends of the assembled steel trestle plate are provided with a plurality of bolt holes and bolt grooves thereon along the thickness direction thereof, the size of the bolt grooves is larger than the bolt holes, the bolt grooves and the bolt holes are interconnected, the embedded bolts are anchored on the concrete support beams through the bolt grooves, the bolt holes and the rubber pads, and the embedded bolts are sunk into the bolt grooves.

3. The assembled steel trestle plate structure according to claim 2 is characterized in that: The bolt hole is a strip-shaped hole, and the bolt groove is a strip-shaped groove.

4. The assembled steel trestle board structure according to claim 2 is characterized in that: The distance between the center of the bolt hole and the end surface of the assembled steel trestle board is 150 mm.

5. The assembled steel trestle plate structure according to claim 1 is characterized in that: The embedded bolts are chemical bolts.

6. The assembled steel trestle board structure according to claim 1, characterized in that: The embedded bolts are expansion bolts.

7. The assembled steel trestle deck structure according to claim 1, characterized in that: Each end of the assembled steel trestle board is provided with three bolt holes and corresponding bolt grooves in a straight line along the width direction thereof.

8. The assembled steel trestle deck structure according to claim 1, characterized in that: It also includes a concrete limit block, which is arranged on the concrete support beam and contacts the end surface of the assembled steel trestle board.

9. The assembled steel trestle deck structure according to claim 1, characterized in that: The diameter of the embedded bolt is greater than 30 mm.

10. The assembled steel trestle deck structure according to claim 1, characterized in that: The depth of the embedded bolts anchored in the concrete support beam is more than 10d.

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