Fabricated temporary steel bridge deck slab structure

Abstract

The utility model relates to the technical field of assembly type bridges, and discloses an assembly type temporary steel bridge deck slab structure which comprises a riffled plate, a longitudinal main ridge is arranged at the bottom of the riffled plate, a transverse secondary ridge is arranged on one side of the longitudinal main ridge, a blocking steel channel is arranged on one side of the transverse secondary ridge, and a hoisting positioning hole is formed in the blocking steel channel. A bottom plate is further arranged at the bottom of the checkered steel plate, a supporting block is arranged on the bottom plate, and a clamping groove is formed in the supporting block. The bridge deck slab is simple in structure and convenient to process, a plurality of bridge deck slabs can be spliced and assembled in parallel to form a complete bridge deck in a simple support mode, when a certain bridge deck slab needs to be maintained or a ditch under the bridge deck needs to be dredged, construction can be completed directly through hoisting and dismounting, and the bridge deck slab can meet the requirements of temporary shortcuts of most cities. And through the arrangement of the bottom plate and the supporting blocks, the clamping grooves in the supporting blocks are clamped to the intersections of the longitudinal main ridges and the transverse secondary ridges, and therefore the supporting stability is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of designing assembled bridges, in particular to an assembled steel temporary bridge deck structure. Background Art

[0002] With the development of urban construction, the need to quickly build temporary bridges is increasingly common in engineering projects. The existing technology for building temporary steel bridges is not only complicated in the early stage, but also has many inconveniences in the later installation and operation process. For example, there is no working condition for large-scale lifting equipment in the construction of temporary bridges in municipal engineering, and the municipal ditch project needs to provide maintenance and dredging conditions during operation.

[0003] During the operation of urban temporary bridges, they are often used as temporary roads, which places high demands on the strength, rigidity and stability of temporary bridges. The existing technology is insufficient in meeting the bearing capacity while taking into account the convenience of temporary bridges. Therefore, there is a need for an assembled steel temporary bridge deck with a simple structure, easy construction, and taking into account the bearing capacity and convenience. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] The purpose of the utility model is to solve the problems in the prior art that the assembled bridge deck structure is relatively complex and is not conducive to rapid processing and production; the dead weight of a single bridge deck is relatively large, and the conditions for lifting it with large lifting equipment are often not available during the construction of a temporary bridge, and it is also not convenient to disassemble and assemble freely. In view of the shortcomings of the prior art, the utility model provides an assembled steel temporary bridge deck structure.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an assembled steel temporary bridge deck structure includes a patterned steel plate, a longitudinal main rib is arranged at the bottom of the patterned steel plate, a transverse secondary rib is arranged on one side of the longitudinal main rib, a blocking channel steel is arranged on one side of the transverse secondary rib, a lifting positioning hole is opened on the blocking channel steel, a bottom plate is also arranged at the bottom of the patterned steel plate, a support block is arranged on the bottom plate, and a card slot is opened on the support block.

[0008] Preferably, the bottom of the patterned steel plate is welded to the longitudinal main rib, and the transverse secondary rib is connected to the longitudinal main rib and the patterned steel plate by welding. According to this preference, the patterned steel plate is welded and assembled by patterned steel with a thickness of ten millimeters.

[0009] Preferably, the number of the blocking channel steels is two on the left and right, and the blocking channel steels are connected by welding the longitudinal main ribs and the transverse secondary ribs. According to this optimization, each bridge deck needs two blocking channel steels.

[0010] Preferably, the number of the longitudinal main ribs is five. According to this preference, each bridge deck needs five longitudinal main ribs.

[0011] Preferably, the bottom plate is connected to the longitudinal main ribs and the transverse secondary ribs by welding, and the support block is fixedly mounted on the bottom plate. According to this preference, by setting the bottom plate and the support block, the card slot on the support block is carded at the intersection of the longitudinal main ribs and the transverse secondary ribs.

[0012] Preferably, the slot is adapted to the width of the longitudinal main rib and the transverse secondary rib. According to this preference, the slot is connected at the intersection of the longitudinal main rib and the transverse secondary rib, thereby further improving the support stability.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides a prefabricated steel temporary bridge deck structure, which has the following beneficial effects:

[0015] 1. This kind of assembled steel temporary bridge deck structure has a simple deck structure, which is easy to process. Several decks can be assembled into a complete bridge deck by parallel splicing in a simple support form. When a deck needs to be repaired or the ditch under the deck needs to be dredged, the construction can be completed directly by lifting and disassembling.

[0016] 2. This assembled steel temporary bridge deck structure can meet the practical needs of most temporary urban walkways. By setting the bottom plate and the support block, the card slot on the support block is connected to the intersection of the longitudinal main rib and the transverse secondary rib, thereby further improving the support stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 It is a three-dimensional diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the bottom structure of the utility model;

[0020] Figure 3 It is a schematic diagram of the structure of the bottom plate etc. of the utility model.

[0021] In the figure: 1. Patterned steel plate; 2. Longitudinal main ribs; 3. Horizontal secondary ribs; 4. Blocking channel steel; 5. Lifting positioning holes; 6. Bottom plate; 7. Support block; 8. Slot. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Example 1

[0024] like Figure 1-3 As shown, the utility model provides an assembled steel temporary bridge deck structure including a patterned steel plate 1, a longitudinal main rib 2 is arranged at the bottom of the patterned steel plate 1, a transverse secondary rib 3 is arranged on one side of the longitudinal main rib 2, a blocking channel steel 4 is arranged on one side of the transverse secondary rib 3, a lifting positioning hole 5 is opened on the blocking channel steel 4, a bottom plate 6 is also arranged at the bottom of the patterned steel plate 1, a supporting block 7 is arranged on the bottom plate 6, a card slot 8 is opened on the supporting block 7, the bottom of the patterned steel plate 1 and the longitudinal main rib 2 are welded to each other, the transverse secondary rib 3 is connected to the longitudinal main rib 2 and the patterned steel plate 1 by welding, the number of the blocking channel steel 4 is two on the left and right, the blocking channel steel 4 is connected to the longitudinal main rib 2 and the transverse secondary rib 3 by welding, the number of the longitudinal main rib 2 is five, the bottom plate 6 is connected to the longitudinal main rib 2 and the transverse secondary rib 3 by welding, the supporting block 7 is fixedly installed on the bottom plate 6, and the card slot 8 is adapted to the width of the longitudinal main rib 2 and the transverse secondary rib 3.

[0025] In this embodiment, the patterned steel plate 1 is welded and assembled by patterned steel with a thickness of 10 mm, the longitudinal main rib 2 is an I-steel of type 20a that meets the national standard "Hot-rolled Steel" GB / T706-2016, and each bridge panel requires five longitudinal main ribs 2, the transverse secondary ribs 3 are I-steels of type 12 that meet the national standard "Hot-rolled Steel" GB / T706-2016, and each bridge panel requires four transverse secondary ribs 3, and the blocking channel steel 4 is a channel steel of type 20a that meets the national standard "Hot-rolled Steel" GB / T706-2016. Each bridge panel requires two blocking channel steels 4, and two lifting positioning holes 5 with a diameter of 8 mm are opened on each channel steel. The weight of a single panel does not exceed 2 tons. After actual engineering application, the design bearing capacity of this bridge panel reaches 45 tons.

[0026] The following is a detailed description of the working principle of this type of assembled steel temporary bridge deck structure.

[0027] like Figure 1-3As shown, when in use, the patterned steel plate 1 is welded and assembled by patterned steel with a thickness of 10 mm. The size of a single patterned steel plate 1 is length*width*thickness=6000*1500*10 mm. The longitudinal main rib 2 is an I-beam of type 20a that meets the national standard "Hot-rolled Steel" (GB / T706-2016). The length of a single I-beam main rib is 5986 mm. Each bridge deck requires five longitudinal main ribs 2, and the transverse secondary ribs 3 are I-beams of type 12 that meet the national standard "Hot-rolled Steel" (GB / T706-2016). The length of the secondary rib of a single I-beam is 338 mm. Four pieces of transverse secondary ribs 3 are required for each bridge deck. The blocking channel steel 4 is a 20a channel steel that meets the requirements of the national standard "Hot-rolled Steel" (GB / T706-2016). The length of a single channel steel is 1500 mm. Two blocking channel steels 4 are required for each bridge deck. Two lifting positioning holes 5 with a diameter of 8 mm are opened on each channel steel. By setting the bottom plate 6 and the support block 7, the slot 8 on the support block 7 is clamped at the intersection of the longitudinal main rib 2 and the transverse secondary rib 3, thereby further improving the support stability.

Claims

1. An assembled steel bridge deck structure, comprising a patterned steel plate (1), characterized in that: The bottom of the patterned steel plate (1) is provided with a longitudinal main rib (2), one side of the longitudinal main rib (2) is provided with a transverse secondary rib (3), one side of the transverse secondary rib (3) is provided with a blocking channel steel (4), and the blocking channel steel (4) is provided with a lifting positioning hole (5). The bottom of the patterned steel plate (1) is also provided with a bottom plate (6), and a support block (7) is provided on the bottom plate (6), and a slot (8) is provided on the support block (7).

2. The assembled steel bridge deck structure according to claim 1 is characterized by: The bottom of the patterned steel plate (1) is welded to the longitudinal main ribs (2), and the transverse secondary ribs (3) are connected to the longitudinal main ribs (2) and the patterned steel plate (1) by welding.

3. The assembled steel bridge deck structure according to claim 1 is characterized by: The number of the blocking channel steels (4) is two on the left and right, and the blocking channel steels (4) are connected by welding the longitudinal main ribs (2) and the transverse secondary ribs (3).

4. The assembled steel temporary bridge deck structure according to claim 1 is characterized by: The number of the longitudinal main ribs (2) is five.

5. The assembled steel temporary bridge deck structure according to claim 1 is characterized by: The bottom plate (6) is connected to the longitudinal main ribs (2) and the transverse secondary ribs (3) by welding, and the support block (7) is fixedly mounted on the bottom plate (6).

6. The assembled steel temporary bridge deck structure according to claim 1 is characterized by: The clamping groove (8) is adapted to the width of the longitudinal main rib (2) and the transverse secondary rib (3).

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