Floating slab structure with high transverse stability

Abstract

The utility model relates to the technical field of tunnel construction, in particular to a floating slab structure with high transverse stability, a lateral limiting table is arranged on the lateral side of a floating slab, the lateral limiting table is attached to the floating slab, a polyurethane pad is arranged between the lateral limiting table and the floating slab, an anti-bouncing clamping block is arranged on the lateral limiting table, and the lateral limiting table and the floating slab are connected through a connecting rod. And the anti-jumping clamping block is fixed with the lateral limiting table through an expansion bolt. The floating slab has the advantages that the transverse stability of the floating slab is obviously improved, and the operation safety of rail transit is ensured; the structure is simple, reasonable, convenient to construct and suitable for popularization.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction, in particular to a floating plate structure with high lateral stability. Background Art

[0002] At present, the floating plate track bed includes a plurality of floating plates, each of which has a connecting piece at both ends, and the connecting pieces on two adjacent floating plates are connected together by bolts to form a shear hinge structure, thereby realizing the installation of the floating plate track bed. However, the shear hinge is prone to damage during use, which will reduce the connection strength between the two adjacent floating plates, thereby reducing the reliability of the floating plate track bed, especially the lateral stability, which will seriously affect the driving safety of the rail transit line. Summary of the invention

[0003] The purpose of the utility model is to provide a floating plate structure with high lateral stability in view of the above-mentioned deficiencies in the prior art, by adding a corresponding lateral limit platform on the outer side of the floating plate, to achieve lateral limit or longitudinal and lateral limit of the floating plate, thereby effectively improving the lateral stability of the floating plate.

[0004] The purpose of this utility model is achieved by the following technical solutions:

[0005] A floating plate structure with high lateral stability comprises a floating plate, characterized in that: a side limit platform is arranged on the side of the floating plate, the side limit platform is in contact with the floating plate, a polyurethane pad is arranged between the two, an anti-ejection blocking block is arranged on the side limit platform, and the anti-ejection blocking block is fixed to the side limit platform by expansion bolts.

[0006] The side limit platform includes a side longitudinal and transverse limit platform and a side transverse limit platform, wherein the side longitudinal and transverse limit platform is used to limit the longitudinal and transverse directions of the floating plate from the side, and the side transverse limit platform is used to limit the transverse direction of the floating plate from the side.

[0007] The lateral longitudinal and transverse limiting platforms are located at the side positions with corners on both sides of the floating plate.

[0008] The lateral transverse limiting platforms are located at the flat side positions on both sides of the floating plate.

[0009] The top surface of the lateral limiting platform is flush with the top surface of the floating plate.

[0010] The lateral limiting platform has reinforcement inside, and the reinforcement is embedded in the base below.

[0011] The utility model has the advantages of significantly improving the lateral stability of the floating plate and ensuring the safety of rail transit operation; having a simple and reasonable structure, being convenient to construct and being suitable for popularization. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a plan view of the first embodiment of the present utility model;

[0013] Figure 2 This is a plan layout diagram of Example 2 of the present utility model;

[0014] Figure 3 This is a plan layout diagram of the third embodiment of the present utility model;

[0015] Figure 4 It is a large-scale drawing of the side limit platform in the utility model. DETAILED DESCRIPTION

[0016] The following is a further detailed description of the features of the present invention and other related features through embodiments in conjunction with the accompanying drawings to facilitate understanding by technicians in the same industry:

[0017] like Figure 1-4 As shown, the marks 1-6 in the figure respectively represent: floating plate 1, lateral longitudinal and transverse limit platform 2, lateral transverse limit platform 3, polyurethane pad 4, anti-escape blocking block 5, and anti-escape blocking block 6.

[0018] Embodiment 1: Figure 1 As shown, the floating slab structure with high lateral stability in this embodiment is used to limit the floating slab 1 to improve its lateral stability. In this embodiment, the floating slab 1 is a prefabricated short slab, which is generally divided into two types: 4.8m slab and 3.6m slab.

[0019] Specifically, this embodiment adds lateral longitudinal and transverse limit platforms 2 and lateral transverse limit platforms 3 on both sides of the floating plate 1, wherein the lateral longitudinal and transverse limit platforms 2 are used to limit the longitudinal and transverse directions of the floating plate 1 from the side, while the lateral transverse limit platforms 3 are used to limit the transverse direction of the floating plate 1 from the side; at this time, for the transverse direction of the floating plate 1, the lateral longitudinal and transverse limit platforms 2 and the lateral transverse limit platforms 3 work together.

[0020] In this embodiment, the lateral longitudinal and transverse limiter 2 is set at the corner position designed on the side of the floating board 1. The lateral longitudinal and transverse limiter 2 and the floating board 1 form a double-sided contact, so that the floating board 1 can be limited in both the longitudinal and transverse directions. The lateral transverse limiter 3 is set at the flat side position of the side of the floating board 1. It forms a single-sided contact with the floating board 1 and only limits the floating board 1 in the transverse direction. Figure 1 As shown, the lateral transverse limit platform 3 includes an arrangement form in which it is in overall contact with the floating plate 1 , and also includes an arrangement form in which it is partially located at the plate end and partially located in the plate span. Both arrangements can effectively limit the floating plate 1 .

[0021] like Figure 1and Figure 4 As shown, a flexible polyurethane pad 4 is arranged between the adjacent surfaces of the lateral longitudinal and transverse limiting platforms 2 and the lateral transverse limiting platforms 3 and the floating plate 1, and the polyurethane pad 4 plays a buffering role.

[0022] like Figure 4 As shown, an anti-ejection block 5 and an anti-ejection block 6 are respectively arranged on the lateral longitudinal and transverse limit platform 2 and the lateral transverse limit platform 3. Both anti-ejection blocks 6 are installed at the outer corners of the upper surface of the limit platform and are fixedly connected to the limit platform by expansion bolts to achieve anti-ejection. In this embodiment, since the lateral longitudinal and transverse limit platform 2 and the floating plate 1 are attached on both sides, one side of the package is an anti-ejection block 5 that matches the structure at the corner of the floating plate 1, and the other side is an anti-ejection block 6; as for the lateral transverse limit platform 3, it is attached on one side to the floating plate 1, so both sides of it use anti-ejection blocks 6.

[0023] Embodiment 2: Figure 2 As shown, the difference between this embodiment and the first embodiment is that the floating slab 1 in this embodiment is a cast-in-place floating slab with a slab length of about 12.8m and prestressed anchor locks. Since the prestressed anchor locks are used in this embodiment, the stability of the floating slab body is relatively strong, so the lateral lateral limit platform 3 is only used for lateral limit at the overall side position of the floating slab 1. Similarly, the lateral lateral limit platform 3 includes an arrangement form in which it is in overall contact with the floating slab 1, and also includes an arrangement form in which it is partially located at the end of the slab and partially located in the middle of the slab span.

[0024] Embodiment 3: Figure 3 As shown, the difference between this embodiment and the first and second embodiments is that the floating slab 1 in this embodiment is a cast-in-place floating slab with a slab length of 3.4-7m and located outside the prestressed anchor lock area. Lateral transverse limit platforms 3 are arranged at intervals on both sides of the floating slab 1. Generally speaking, the lateral transverse limit platforms 3 are arranged at longitudinal intervals of 3.6-4.8m, and each slab has no less than two limit platforms on each side.

[0025] When the above embodiment is implemented, the top surfaces of the lateral longitudinal and transverse limiting platforms 2 and the lateral transverse limiting platforms 3 are flush with the top surface of the floating plate 1 to ensure the limiting effect.

[0026] The construction of the lateral longitudinal and transverse limit platform 2 and the lateral transverse limit platform 3 adopts cast-in-place construction, which should be carried out after the floating plate 1 is lifted and adjusted; attention should be paid to the airtightness of the template during construction, especially the template at the bottom of the plate side, to ensure that the concrete does not enter the working space at the bottom of the plate. During construction, first accurately locate, chisel off the bridge waterproof layer, chisel the rough beam surface concrete, drill and clean the holes, inject the anchor glue, tie the steel bars, support the formwork (including the polyurethane pad 4 close to the plate side), and pour and maintain.

[0027] Although the above embodiments have described the concepts and embodiments of the purpose of the utility model in detail with reference to the accompanying drawings, ordinary technicians in this field can recognize that various improvements and modifications can still be made to the utility model without departing from the scope of the claims, so they are not described one by one here.

Claims

1. A floating plate structure with high lateral stability, comprising a floating plate, characterized in that: A side limit platform is arranged on the side of the floating plate, the side limit platform is fitted with the floating plate, a polyurethane pad is arranged between the two, and an anti-ejection blocking block is arranged on the side limit platform, and the anti-ejection blocking block is fixed to the side limit platform by expansion bolts.

2. A floating slab structure with high lateral stability according to claim 1, characterized in that: The side limit platform includes a side longitudinal and transverse limit platform and a side transverse limit platform, wherein the side longitudinal and transverse limit platform is used to limit the longitudinal and transverse directions of the floating plate from the side, and the side transverse limit platform is used to limit the transverse direction of the floating plate from the side.

3. A floating slab structure with high lateral stability according to claim 2, characterized in that: The lateral longitudinal and transverse limiting platforms are located at the side positions with corners on both sides of the floating plate.

4. A floating slab structure with high lateral stability according to claim 2, characterized in that: The lateral transverse limiting platforms are located at the flat side positions on both sides of the floating plate.

5. The floating slab structure with high lateral stability according to claim 1, characterized in that: The top surface of the lateral limiting platform is flush with the top surface of the floating plate.

6. The floating slab structure with high lateral stability according to claim 1, characterized in that: The lateral limiting platform has reinforcement inside, and the reinforcement is embedded in the base below.

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