Speed ​​bump for UHPC bridge deck

Abstract

This utility model discloses a speed bump for UHPC bridge decks, installed in the gap between adjacent bridge decks along the transverse direction. The speed bump includes a support plate, a first connecting assembly, and a speed bump body. The support plate spans the top of the bridge deck on both sides of the gap; the first connecting assembly includes a limiting member and a tie member; the limiting member, designed separately from the tie member, spans the bottom of the bridge deck on both sides of the gap; the tie member passes through the gap and vertically connects the support plate and the limiting member; the speed bump body is detachably installed on the top of the support plate. This speed bump fully utilizes the existing gap to fix the support plate to the top of the bridge deck, providing a stable mounting surface for the speed bump body, thus offering advantages such as no damage to the original structure, reliable connection, easy disassembly, and reusability.

Description

Technical Field

[0001] This utility model relates to the field of traffic facility technology, and in particular to a speed bump for UHPC bridge deck. Background Technology

[0002] In bridge projects using UHPC bridge decks, speed bumps must be installed at specified intervals to ensure traffic safety. However, UHPC bridge decks have characteristics such as high strength and low permeability. If anchors are installed by directly drilling holes in the deck using traditional methods, it is not only difficult and inefficient, but it can also damage the bridge deck structure. Typically, gaps are left during the installation of UHPC bridge decks due to construction requirements. Therefore, this paper develops a speed bump system that achieves rapid and non-destructive installation by fully utilizing existing gaps. Utility Model Content

[0003] The main technical problem to be solved by this utility model is to provide a speed bump that can be installed quickly and without damage on a UHPC bridge deck with a reserved gap.

[0004] To solve the above-mentioned technical problems, this utility model provides a speed bump for UHPC bridge deck, which is installed in the gap between adjacent bridge decks along the transverse direction; the speed bump includes a support plate, a first connecting assembly and a speed bump body;

[0005] The support plate spans the top of the bridge deck on both sides of the gap between the plates;

[0006] The first connecting component includes a limiting member and a tie member; the limiting member spans the bottom of the bridge deck on both sides of the gap between the plates; the tie member passes through the gap between the plates to vertically connect the support plate and the limiting member.

[0007] The speed bump body is installed on the top of the support plate.

[0008] In a preferred embodiment, the speed bump further includes a second connecting component; the speed bump body and the support plate are detachably connected via the second connecting component.

[0009] In a preferred embodiment, the limiting member is a pad designed to be separate from the pull member.

[0010] In a preferred embodiment, the tie member is a first bolt assembly; the first bolt assembly includes a first bolt and a first nut that is threadedly engaged with the first bolt.

[0011] In a preferred embodiment, the portion of the tie member located within the gap between the plates is provided with a retaining element; the retaining element is the same width as the gap between the plates in the longitudinal direction.

[0012] In a preferred embodiment, the second connecting assembly includes a second bolt and a second nut; the second bolt is fixed to the support plate and passes through a third clearance hole on the speed bump body along the thickness direction, and the speed bump body is fastened to the support plate by threaded engagement with the second nut at the top.

[0013] In a preferred embodiment, the second bolt assembly includes a second bolt; the top of the support plate is provided with a threaded hole, and the second bolt passes through a third clearance hole on the speed bump body along the thickness direction, thereby fastening the speed bump body to the support plate by threaded engagement with the threaded hole at the bottom.

[0014] In a preferred embodiment, several groups of the first connecting components are spaced apart along the transverse bridge direction.

[0015] In a preferred embodiment, in the longitudinal direction of the bridge, at least two sets of the second bolt assemblies are respectively disposed on both sides of the inter-plate gap.

[0016] In a preferred embodiment, several groups of the second bolt assemblies are spaced apart along the transverse bridge direction.

[0017] Compared with the prior art, the technical solution of this utility model has the following beneficial effects:

[0018] The speed bump provided by this utility model fully utilizes the existing gaps between the UHPC bridge deck panels, fixing the support plate to the bridge deck with tie bolts, providing a stable connection surface for the conventional speed bump body. This design eliminates the need for additional drilling or welding, minimizing damage to the original bridge deck structure. The speed bump achieves a stable connection through tie bolt anchoring and rigid fastening of two sets of bolt assemblies. The speed bump adopts a modular structure, which not only facilitates on-site installation but also allows for individual disassembly for replacement and maintenance. The speed bump uses a detachable connection, enabling it to be reused in multiple projects. Attached Figure Description

[0019] Figure 1 This is a top view of the speed bump described in an embodiment of the present invention;

[0020] Figure 2 This is a side cross-sectional view of the speed bump described in this embodiment of the present invention;

[0021] Figure 3 This is a front cross-sectional view of the speed bump described in an embodiment of this utility model.

[0022] The markings in the diagram are: 1-Speed ​​bump body, 2-Support plate, 3-First bolt assembly, 31-First bolt, 32-First nut, 4-Washer plate, 5-Second bolt assembly, 51-Second bolt, 52-Second nut, 6-Bridge panel. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed", "equipped with", "sleeved / connected", "connected", etc., should be interpreted broadly. For example, "connection" can be a wall-mounted connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0026] like Figures 1-3 As shown, this utility model embodiment provides a speed bump, which is applied to a trestle bridge paved with ultra-high performance concrete (UHPC) bridge deck.

[0027] Existing UHPC bridge deck panels (hereinafter referred to as bridge deck panels) leave a gap of approximately 30mm between adjacent panels during installation for subsequent locking. This gap extends along the transverse direction of the bridge. This embodiment utilizes this existing gap to optimize the structure of the speed bump for easier installation. For ease of understanding, this gap will be referred to as the inter-panel gap below.

[0028] The speed bump includes a speed bump body 1, a support plate 2, a first connecting component, and a second connecting component.

[0029] The first connecting assembly includes a limiting member and a tie member. In this embodiment, the tie member is a first bolt assembly 3, and the limiting member is a pad 4 designed separately from the tie member. The support plate 2 and the pad 4 are arranged along the extension direction of the inter-plate gap 7. The support plate 2 spans the top of the bridge deck 6 on both sides of the inter-plate gap 7, and the pad 4 spans the bottom of the bridge deck 6 on both sides of the inter-plate gap 7. The bolt assembly passes through the inter-plate gap 7 and provides a vertical tie connection between the support plate 2 and the pad 4. Specifically, the first bolt assembly 3 includes a first bolt 31 and a first nut 32. The first bolt 31 passes vertically through a first clearance hole on the support plate 2, a second clearance hole on the inter-plate gap 7, and a second clearance hole on the pad 4, respectively. Then, the support plate 2 and the pad 4 are fastened to the bridge deck 6 by threaded engagement with the second nut 52 at the bottom of the pad 4. Several sets of the first bolt assemblies 3 are spaced apart along the transverse direction of the bridge. Preferably, the portion of the first bolt assembly 3 located within the gap 7 between the plates is further provided with a retaining element 8. The retaining element 8 is the same width as the gap 7 in the longitudinal direction of the bridge to prevent the speed bump from sliding along the longitudinal direction of the bridge under the influence of the wheels. In other embodiments, the limiting member may be several independent washers or gaskets.

[0030] The second connecting assembly employs a second bolt assembly 5 for connecting the speed bump body 1 and the support plate 2. Generally, in the transverse direction, several sets of the second bolt assemblies 5 are spaced apart; in the longitudinal direction, at least two sets of the second bolt assemblies 5 are respectively located on both sides of the inter-plate gap 7. The specific configuration of the second bolt assembly 5 can vary. Preferably, the second bolt assembly 5 includes a second bolt 51 and a second nut 52. The second bolt 51 is vertically embedded in the support plate 2, with a threaded section protruding from the top of the support plate 2. The threaded section passes through a third clearance hole on the speed bump body 1 along the thickness direction, and through threaded engagement with the second nut 52, the speed bump body 1 is tightened downwards onto the support plate 2. In another embodiment, the second bolt assembly 5 includes only the second bolt 51. The top of the support plate 2 has a vertical threaded hole, and the second bolt 51 passes downwards through the third clearance hole on the speed bump body 1 along the thickness direction, tightening the speed bump body 1 onto the support plate 2 through threaded engagement with the threaded hole. Furthermore, the top of the speed bump body 1 is provided with a countersunk hole at the location where the second bolt assembly 5 is set, for accommodating the end of the second nut 52 or the second bolt 51.

[0031] The speed bump body 1 has a slope along its width and its surface is textured with anti-slip buffering material. As this is a mature existing technology, the construction of the speed bump body 1 will not be described in detail here.

[0032] In summary, the speed bump provided in this embodiment of the invention fully utilizes the existing gaps 7 between the bridge deck panels 6 to fix the support plate 2 to the bridge deck using tie bolts, providing a stable connection surface for the conventional speed bump body 1. This design eliminates the need for additional drilling or welding, minimizing damage to the original bridge deck panel 6 structure. The speed bump achieves a stable connection through the tie bolt anchoring of the first bolt assembly 3 and the rigid fastening of the second bolt assembly 5. The speed bump adopts a modular structure, which not only facilitates on-site installation but also allows for individual disassembly of the speed bump body 1 for replacement and maintenance. The speed bump uses a detachable connection, allowing for reuse in multiple projects.

[0033] The above description is merely a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All technically equivalent modifications made based on the content of the present utility model specification shall fall within the protection scope of the present utility model.

Claims

1. A deceleration strip for a UHPC bridge deck slab, installed at a slab-to-slab gap provided between adjacent bridge deck slabs in a transverse direction of the bridge, characterized in that: Includes a support plate, a first connecting assembly, and a speed bump body; The support plate spans the top of the bridge deck on both sides of the gap between the plates; The first connecting component includes a limiting member and a tie member; the limiting member spans the bottom of the bridge deck on both sides of the gap between the plates; the tie member passes through the gap between the plates to vertically connect the support plate and the limiting member. The speed bump body is installed on the top of the support plate.

2. The deceleration strip for a UHPC bridge deck according to claim 1, characterized in that: It also includes a second connecting component; the speed bump body and the support plate are detachably connected via the second connecting component.

3. The deceleration strip for a UHPC bridge deck panel according to claim 1, characterized in that: The limiting component uses a pad designed to be separate from the pull member.

4. The deceleration strip for a UHPC bridge deck panel according to claim 1, characterized in that: The tie rod is a first bolt assembly; the first bolt assembly includes a first bolt and a first nut that is threaded to the first bolt.

5. The deceleration strip for a UHPC bridge deck panel according to claim 1, characterized in that: The portion of the tie rod located within the gap between the plates is provided with a retaining element; the retaining element is the same width as the gap between the plates in the longitudinal direction.

6. The deceleration strip for a UHPC bridge deck panel according to claim 2, characterized in that: The second connecting assembly includes a second bolt and a second nut; the second bolt is fixed to the support plate and passes through a third clearance hole on the speed bump body along the thickness direction, and the speed bump body is fastened to the support plate by threaded engagement with the second nut at the top.

7. A speed bump for a UHPC bridge deck according to claim 2, characterized in that: The second connecting assembly includes a second bolt; the top of the support plate is provided with a threaded hole, and the second bolt passes through a third clearance hole on the speed bump body along the thickness direction, thereby fastening the speed bump body to the support plate by threaded engagement with the threaded hole at the bottom.

8. A speed bump for a UHPC bridge deck according to claim 1, characterized in that: Several groups of the first connecting components are spaced apart along the transverse bridge direction.

9. A speed bump for a UHPC bridge deck according to claim 2, characterized in that: In the longitudinal direction of the bridge, at least two sets of the second connecting components are respectively disposed on both sides of the gap between the plates.

10. A speed bump for a UHPC bridge deck according to claim 2, characterized in that: Several groups of the second connecting components are spaced apart along the transverse bridge direction.

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