UHPC bridge sidewalk structure

Abstract

The utility model relates to a UHPC (Ultra High Performance Concrete) bridge sidewalk structure, which belongs to the field of constructional engineering and comprises a supporting seat, a plurality of sidewalk plates are sequentially paved on the supporting seat along the length direction, and the sidewalk plates are prefabricated by UHPC materials; and supporting members which are in one-to-one correspondence with sidewalk slabs are sequentially arranged on the supporting seat in the length direction. The utility model has the beneficial effects that the mechanical property of UHPC (Ultra High Performance Concrete) material is fully utilized, and compared with the conventional concrete structure, the utility model has the characteristics of stronger bearing capacity, lighter weight, material conservation, convenience in construction, energy conservation, environmental protection, good economic benefit and the like, and is convenient to install and maintain; compared with a conventional steel sidewalk structure, the steel sidewalk structure is equivalent in weight, basically does not increase the load of a bridge structure, can be easily opened to overhaul pipelines below, is easy to maintain and is suitable for various bridge sidewalks or other sidewalks.

Description

Technical Field

[0001] This utility model relates to the field of building engineering, specifically a UHPC bridge pedestrian structure. Background Technology

[0002] Conventional bridge pedestrian walkways are mainly made of concrete or steel. Concrete pedestrian walkways are heavier and are generally used in concrete bridges or small- to medium-span steel bridges, while steel pedestrian walkways are lighter and are typically used in large-span steel bridges.

[0003] The problem is that the precast concrete sidewalk structure components are heavy, making them inconvenient to install and maintain; and the steel sidewalk structure, because the sidewalk slab and supporting structure are usually integrally welded, makes it inconvenient to inspect and repair pipelines under the sidewalk. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a bridge pedestrian structure with stronger structural performance and easier maintenance.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A UHPC bridge pedestrian structure includes a support base, on which a plurality of pedestrian slabs are laid sequentially along the length direction, and the pedestrian slabs are prefabricated UHPC material;

[0006] The support base is provided with support components that correspond one-to-one with the sidewalk slabs along its length.

[0007] The beneficial effects of this utility model are: it makes full use of the mechanical properties of UHPC material, and compared with conventional concrete structures, it has the characteristics of stronger load-bearing capacity, lighter weight, material saving, convenient construction, energy saving and environmental protection, and good economic benefits. It is easy to install and maintain. Compared with conventional steel pedestrian walkway structures, its weight is comparable, basically does not increase the load on the bridge structure, and the pipelines below can be easily opened for inspection and maintenance. It is easy to maintain and is suitable for various bridge pedestrian walkways or other pedestrian walkways.

[0008] Based on the above technical solution, the present invention can be further improved as follows.

[0009] Furthermore, the supporting component includes a steel bracket structure, which is fixedly installed on the support base. A mortar pad layer is provided on the top surface of the steel bracket structure, and the sidewalk slab is erected on the mortar pad layer.

[0010] The beneficial effect of adopting the above-mentioned further solution is that the steel bracket support structure has a good supporting force effect.

[0011] Furthermore, the steel bracket structure includes a support plate, which is fixedly installed on the support base. A mortar pad is fixedly provided on the top surface of the support plate, and a stiffening plate and a cross diaphragm are fixedly provided on the bottom surface of the support plate.

[0012] The advantages of adopting the above-mentioned further solutions are: better physical properties and the ability to withstand stronger loads.

[0013] Furthermore, the supporting member includes a mortar pad layer, which is fixedly installed on the supporting base, and the sidewalk slab is erected on the mortar pad layer.

[0014] The advantages of adopting the above-mentioned further solution are: the mortar cushion layer is used directly for support, resulting in a simple structure.

[0015] Furthermore, steel pin insertion holes are provided at the bottom of the side of the sidewalk slab and the adjacent sidewalk slab on the same side of the joint surface;

[0016] A connecting plate is provided on the mortar cushion layer. The connecting plate is located at the joint of two adjacent sidewalk slabs. Both ends of the connecting plate extend to the bottom of the two adjacent sidewalk slabs and are fixed with steel pins. The steel pins extend into the steel pin insertion holes.

[0017] The advantages of adopting the above-mentioned further solution are: it facilitates fixing two adjacent sidewalk slabs, facilitates assembly, and avoids shaking.

[0018] Furthermore, several internal threaded sleeves are pre-embedded in the sidewalk slab.

[0019] The advantages of adopting the above-mentioned further solutions are: it facilitates hoisting during initial installation and when the lower pipeline needs to be inspected, and it can also serve as a positioning reference during construction.

[0020] Furthermore, the top surface of the pedestrian walkway slab is engraved with patterns.

[0021] The advantages of adopting the above-mentioned further solutions are: the sidewalk slabs can be used directly as the sidewalk surface, and there is no need to lay a paving layer on the top surface, which simplifies the structure and reduces the load on the bridge.

[0022] Furthermore, the sidewalk slabs include slab-type sidewalk slabs and grooved sidewalk slabs.

[0023] The advantage of adopting the above-mentioned further solutions is that they can be selected based on the width of the sidewalk and actual needs.

[0024] Furthermore, the slab-type sidewalk slab is a rectangular slab of uniform thickness.

[0025] The advantages of adopting the above-mentioned further solutions are: simple structure and convenient and quick manufacturing.

[0026] Furthermore, the trough-shaped sidewalk slab includes a panel, and the bottom surface of the panel is fixed with transverse ribs.

[0027] The advantages of adopting the above-mentioned further solutions are: strong physical properties, material saving, and reduced costs. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall design of this utility model.

[0029] Figure 2 This is a schematic diagram of the mortar cushion layer of this utility model.

[0030] Figure 3 This is a schematic cross-sectional view of the steel bracket structure of this utility model.

[0031] Figure 4 This is a longitudinal schematic diagram of the steel bracket structure of this utility model.

[0032] Figure 5 This is a schematic diagram of the installation of the panel-type sidewalk slab of this utility model.

[0033] Figure 6 This is a schematic diagram of the installation of the grooved sidewalk slab of this utility model.

[0034] Figure 7 This is a top view of the panel-type sidewalk slab of this utility model.

[0035] Figure 8 This is a cross-sectional view of the panel-type sidewalk slab of this utility model.

[0036] Figure 9 This is a top view of the grooved sidewalk slab of this utility model.

[0037] Figure 10 This is a cross-sectional view of the grooved sidewalk slab of this utility model.

[0038] The attached diagram lists the components represented by each number as follows:

[0039] 1. Support base; 2. Sidewalk slab; 3. Mortar bedding layer; 4. Support plate; 5. Stiffening plate; 6. Cross diaphragm; 7. Steel pin insertion hole; 8. Connecting plate; 9. Steel pin; 10. Internal threaded sleeve; 11. Guardrail; 12. Pipeline;

[0040] 201. Panel-type sidewalk slab; 202. Groove-type sidewalk slab. Detailed Implementation

[0041] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0042] Example 1

[0043] like Figure 1 As shown, a UHPC bridge pedestrian structure includes a support base 1, on which several pedestrian walkway slabs 2 are laid sequentially along the length direction. The pedestrian walkway slabs 2 are prefabricated from UHPC material.

[0044] The support base 1 is provided with support components that correspond one-to-one with the sidewalk slab 2 along its length.

[0045] The beneficial effects of this embodiment are: it makes full use of the mechanical properties of UHPC material, and compared with conventional concrete structures, it has the characteristics of stronger load-bearing capacity, lighter weight, material saving, convenient construction, energy saving and environmental protection, and good economic benefits, and is easy to install and maintain; compared with conventional steel pedestrian walkway structures, its weight is comparable, basically does not increase the load on the bridge structure, and the pipelines below can be easily opened for inspection and maintenance, making it easy to maintain and suitable for various bridge pedestrian walkways or other pedestrian walkways.

[0046] Specifically, concrete is divided into ordinary concrete, high-performance concrete and ultra-high performance concrete (UHPC). UHPC has extremely high compressive strength and flexural strength, and its performance is far superior to that of traditional concrete materials. It also has a longer service life and improves building safety and long-term performance.

[0047] The support base 1 is divided into two parts, left and right. The sidewalk slab 2 is laid on top of the two support bases 1. The railing 11 is installed on top of the support base 1. Pipelines 12 can be arranged under the sidewalk slab 2. The sidewalk slab 2 manufactured by UHPC has higher performance and strength and is suitable for various bridge sidewalks or other sidewalks.

[0048] Example 2

[0049] like Figures 3 to 4 As shown, preferably, based on Embodiment 1, the supporting member includes a steel bracket structure, the steel bracket structure is fixedly installed on the support base 1, the top surface of the steel bracket structure is provided with a mortar pad layer 3, and the sidewalk slab 2 is erected on the mortar pad layer 3.

[0050] The beneficial effect of the preferred solution in the above embodiments is that the steel bracket support structure has a good supporting force effect.

[0051] Preferably, the steel bracket structure includes a support plate 4, which is fixedly installed on the support base 1. A mortar pad layer 3 is fixedly provided on the top surface of the support plate 4, and a stiffening plate 5 and a cross diaphragm 6 are fixedly provided on the bottom surface of the support plate 4.

[0052] The advantages of adopting the preferred solution in the above embodiments are: better physical properties and the ability to withstand stronger loads.

[0053] Specifically, the steel bracket structure is arranged sequentially on the support bases 1 on both sides along the length of the support base 1, and the stiffening plate 5 and the transverse diaphragm 6 below increase the structural strength.

[0054] Example 3

[0055] like Figure 2 As shown, preferably, based on embodiments 1-2, the supporting member includes a mortar pad 3, the mortar pad 3 is fixedly installed on the supporting base 1, and the sidewalk slab 2 is erected on the mortar pad 3.

[0056] The advantages of the preferred solution in the above embodiments are: the mortar pad layer 3 is used directly for support, and the structure is simple.

[0057] Specifically, in actual production, steel bracket structures or ordinary mortar pads are selected for support based on the bridge's structural form.

[0058] Example 4

[0059] like Figures 5 to 6 As shown, preferably, based on embodiments 1-3, the bottom of the sidewalk slab 2 and the adjacent sidewalk slab 2 are provided with steel pin insertion holes 7.

[0060] A connecting plate 8 is provided on the mortar pad 3. The connecting plate 8 is located at the joint of two adjacent sidewalk slabs 2. Both ends of the connecting plate 8 extend to the bottom of the two adjacent sidewalk slabs 2 and are fixed with steel pins 9. The steel pins 9 extend into the steel pin insertion holes 7.

[0061] The advantages of adopting the preferred solution in the above embodiments are: it facilitates fixing two adjacent sidewalk slabs 2, facilitates assembly, and avoids shaking.

[0062] Example 5

[0063] like Figures 7 to 10 As shown, preferably, based on embodiments 1-4, a plurality of internal threaded sleeves 10 are pre-embedded on the sidewalk slab 2.

[0064] The advantages of adopting the preferred solution in the above embodiments are: it facilitates hoisting during initial installation and when the lower pipeline 12 needs to be inspected, and it can also be used as a positioning reference during construction.

[0065] Preferably, the top surface of the sidewalk slab 2 is engraved with a pattern.

[0066] The beneficial effects of adopting the preferred solution in the above embodiments are: the sidewalk slab 2 can be used directly as the sidewalk surface, and the top surface does not need to be paved with a pavement layer, thus reducing the bridge load.

[0067] Example 6

[0068] like Figures 7 to 10 As shown, preferably, based on embodiments 1-5, the sidewalk slab 2 includes a plate-type sidewalk slab 201 and a groove-type sidewalk slab 202.

[0069] The advantage of using the preferred solution in the above embodiments is that it can be selected according to the width of the sidewalk and actual needs.

[0070] Preferably, the slab-type sidewalk slab 201 is a rectangular slab of uniform thickness.

[0071] The advantages of using the preferred solution in the above embodiments are: simple structure and convenient and quick manufacturing.

[0072] Preferably, the grooved sidewalk slab 202 includes a panel, and the bottom surface of the panel is fixed with transverse ribs.

[0073] The advantages of using the preferred solution in the above embodiments are: strong physical properties, material saving, and reduced cost.

[0074] Specifically, such as 7 and Figure 9 As shown, the direction of the longer sidewalk slab 2 is the width direction of the sidewalk, and the direction of the shorter sidewalk slab 2 is the length direction of the sidewalk. That is, the sidewalk slab 2 in the figure is laid horizontally in sequence.

[0075] The length of the grooved sidewalk slab 202 is greater than the length of the slab sidewalk slab 201, and the selection should be made according to the width of the sidewalk.

[0076] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", 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 are not intended to 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.

[0077] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0078] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0079] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0080] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0081] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A UHPC bridge sidewalk structure, characterized in that, Including support seat (1), a plurality of sidewalk slabs (2) are sequentially laid on the support seat (1) along the length direction, and the sidewalk slabs (2) are prefabricated by UHPC material; A plurality of support components corresponding to the sidewalk slabs (2) are sequentially arranged on the support seat (1) along the length direction; The support component includes a steel corbel structure, the steel corbel structure is fixedly installed on the support seat (1), a mortar cushion (3) is arranged on the top surface of the steel corbel structure, and the sidewalk slab (2) is erected on the mortar cushion (3).

2. The UHPC bridge sidewalk structure of claim 1, wherein, The steel corbel structure includes a supporting plate (4), the supporting plate (4) is fixedly installed on the support seat (1), a mortar cushion (3) is fixedly arranged on the top surface of the supporting plate (4), and a stiffened plate (5) and a cross partition plate (6) are fixedly arranged on the bottom surface of the supporting plate (4).

3. The UHPC bridge sidewalk structure of claim 1, wherein, The support component includes a mortar cushion (3), the mortar cushion (3) is fixedly installed on the support seat (1), and the sidewalk slab (2) is erected on the mortar cushion (3).

4. The UHPC bridge sidewalk structure according to claim 2 or 3, characterized in that, Steel pin insertion holes (7) are formed in the bottom of one side of the joint surface of the sidewalk slab (2) and an adjacent sidewalk slab (2). A connecting plate (8) is arranged on the mortar cushion (3), the connecting plate (8) is located at the joint of two adjacent sidewalk slabs (2), the connecting plate (8) extends to the lower side of the two adjacent sidewalk slabs (2) and is fixedly connected with a steel pin (9), and the steel pin (9) extends into the steel pin insertion hole (7).

5. The UHPC bridge sidewalk structure of claim 1, wherein, A plurality of inner thread sleeve pipes (10) are embedded in the sidewalk slab (2).

6. The UHPC bridge sidewalk structure of claim 1, wherein, A pattern is engraved on the top surface of the sidewalk slab (2).

7. The UHPC bridge sidewalk structure according to any one of claims 1 to 3, characterized in that, The sidewalk slab (2) includes a plate-type sidewalk slab (201) and a groove-type sidewalk slab (202).

8. The UHPC bridge sidewalk structure of claim 7, wherein, The plate-type sidewalk slab (201) is an equal-thickness rectangular plate.

9. The UHPC bridge sidewalk structure of claim 7, wherein, The groove-type sidewalk slab (202) includes a panel, and the bottom surface of the panel is fixedly connected with a horizontal rib.

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