Bridge deck structure of suspension chain arch bridge and pedestrian suspension chain arch bridge thereof

Abstract

The utility model relates to bridge engineering technical field especially a kind of deck structure of suspension chain plate arch bridge and pedestrian suspension chain plate arch bridge, including multiple bridge deck panels and multiple cables, multiple cables are mutually parallel between the, the both ends of cable are anchored on the mountain on both sides respectively, cable body is taut to exert pretension;Multiple bridge deck panels are fixed above cable along cable, multiple bridge deck panels are connected to form an integral whole, single bridge deck panel is fixedly connected with multiple cables simultaneously.Multiple bridge deck panels are erected on cable, to avoid the instability of suspension chain plate arch bridge caused by setting suspension structure;Cable body is taut and exerts pretension and multiple bridge deck panels are connected to form an integral whole, improve the overall rigidity of deck, further improve the ability of suspension chain plate arch bridge to resist lateral load, improve stability, effectively reduce safety risk.

Description

Technical Field

[0001] This utility model relates to the field of bridge engineering technology, and in particular to a catenary arch bridge deck structure and its pedestrian catenary arch bridge. Background Technology

[0002] With the increasing demand for tourism, pedestrian bridges and cable cars are common crossing methods when traversing valleys and rivers in natural scenic areas due to pedestrian transportation needs. However, due to the limited capacity and applicability of cable cars, pedestrian bridges remain the preferred option when the budget is relatively sufficient.

[0003] While arch bridges offer strong support capabilities, their applicability is limited in situations where large-scale scaffolding cannot be erected under them, such as deep canyons, river valleys, and navigable waterways, significantly restricting their application scenarios. Existing technologies allow pedestrian suspension bridges to be erected in terrains like deep canyons; however, strong lateral winds frequently occur in these areas. The load-bearing capacity of pedestrian suspension bridges is weak, and their suspension structures are inherently unstable. Under lateral wind loads, the bridges sway significantly, increasing the safety risks for pedestrians.

[0004] In view of this, it is necessary to propose a catenary arch bridge deck structure and a pedestrian catenary arch bridge to solve or at least alleviate the above-mentioned defects. Utility Model Content

[0005] The main objective of this invention is to provide a bridge deck structure for a catenary arch bridge and a pedestrian catenary arch bridge thereof, so as to solve the technical problems of weak and unstable load-bearing capacity of existing pedestrian suspension bridges.

[0006] To achieve the above objectives, this utility model provides a bridge deck structure for a catenary arch bridge, comprising multiple bridge decks and multiple cables. The multiple cables are parallel to each other, and the two ends of the cables are respectively anchored to the mountains on both sides. The cables are taut to apply pretension. The multiple bridge decks are fixed above the cables along the cables, and the multiple bridge decks are connected to each other to form a whole. Each bridge deck is simultaneously fixedly connected to the multiple cables.

[0007] Furthermore, it also includes multiple cable clamp units, which are disposed between the bridge deck and the cable. Each cable clamp unit includes a clamping part and a connecting part. The connecting part is fixed to the clamping part, the clamping part clamps the cable, and the connecting part is fixedly connected to the bridge deck.

[0008] More preferably, the connecting part is a group nail connecting plate, and nail holes are reserved below the bridge deck. The group nail connecting plate includes shear nails, which are fixed in the nail holes, and concrete is poured into the gap between the shear nails and the nail holes.

[0009] Furthermore, a bridge deck joint is reserved between two adjacent bridge decks, and concrete is poured into the bridge deck joint to connect the multiple bridge decks into one piece.

[0010] Preferably, it also includes a cable saddle for connecting the cable and the arch below. The position of the cable saddle corresponds to the position of the bridge deck joint. The cable saddle includes a cable channel in which the cable is slidably connected.

[0011] More preferably, multiple cable saddles are provided along the transverse direction of the catenary arch bridge, and one or more cable channels are provided parallel to each cable saddle.

[0012] Preferably, it also includes a cable anchoring structure, which is fixed inside the two sides of the mountain, and the end of the cable is fixedly connected to the cable anchoring structure.

[0013] More preferably, the cable anchoring structure includes an anchoring body, the bottom of which is formed with a toothed notch, the stepped surface of which faces the cable.

[0014] More preferably, the cable anchoring structure further includes a tensioning and steering device and an anchoring chamber. The cable is mounted on the tensioning and steering device and is slidably connected to the tensioning and steering device. The end of the cable is fixed in the anchoring chamber, and the anchoring chamber is in communication with the outside.

[0015] This utility model also provides a pedestrian catenary arch bridge, including an arch ring and a bridge deck structure as described above, wherein the bridge deck structure of the catenary arch bridge is fixed on the arch ring.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] In this invention, multiple cables are anchored to the mountainsides on both sides, and multiple bridge decks are erected on the cables, thereby avoiding the instability of the catenary arch bridge caused by the suspension structure. The cables are taut and prestressed, and the multiple bridge decks are connected as one, which improves the overall rigidity of the bridge deck, further enhances the catenary arch bridge's ability to resist lateral loads, improves stability, and effectively reduces safety risks. On the other hand, the bridge decks can be prefabricated in the factory in advance, and during bridge construction, the bridge decks only need to be laid on the cables, which greatly simplifies the construction process and shortens the construction period. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of a cable anchored to two mountains in one embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the cable clamp unit layout in one embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of a bridge deck being erected on cables in one embodiment of the present invention;

[0022] Figure 4 for Figure 3 A magnified view of a section at point A in the middle;

[0023] Figure 5 This is a schematic diagram of a cable anchoring structure in one embodiment of the present invention.

[0024] The purpose, features, and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings.

[0025] Explanation of icon numbers:

[0026] 10. Bridge deck structure; 110. Anchorage body; 111. Anchorage chamber; 112. Tensioning and steering device; 113. Toothed sill; 120. Cable; 130. Cable clamp unit; 131. Clamping part; 132. Connecting part; 140. Bridge deck; 20. Arch ring; 210. Cable saddle. Detailed Implementation

[0027] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0030] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0031] Please see Figures 1 to 5 As shown, this embodiment provides a pedestrian catenary arch bridge, including an arch ring 20 and a catenary arch bridge deck structure 10, wherein the catenary arch bridge deck structure 10 is fixed on the arch ring 20.

[0032] The bridge deck structure 10 of the catenary arch bridge includes multiple bridge decks 140 and multiple cables 120. The multiple cables 120 are parallel to each other, and the two ends of the cables 120 are respectively anchored to the mountains on both sides. The cables 120 are taut to apply pretension and are erected on the arch ring 20 of the catenary arch bridge. The multiple bridge decks 140 are fixed above the cables 120 along the cables 120. A bridge deck joint is reserved between two adjacent bridge decks 140. Concrete is poured into the bridge deck joint to connect the multiple bridge decks 140 into one piece. Each bridge deck 140 is simultaneously fixedly connected to the multiple cables 120.

[0033] In this embodiment, multiple cables 120 are anchored on the mountainsides on both sides of the valley or river valley, and multiple bridge decks 140 are erected on the cables 120, thereby avoiding the instability of the catenary arch bridge caused by the suspension structure. The cables 120 are taut and pre-tensioned, and the multiple bridge decks 140 are connected as a whole, which improves the overall rigidity of the bridge deck, further improves the catenary arch bridge's ability to resist lateral loads, improves stability, and effectively reduces safety risks. On the other hand, the bridge decks 140 can be prefabricated in the factory in advance. When erecting the bridge, the bridge decks 140 only need to be laid on the cables 120, which greatly simplifies the construction process and shortens the construction period.

[0034] In this embodiment, a plurality of cable clamp units 130 are further included. The cable clamp units 130 are disposed between the bridge deck 140 and the cable 120. Each cable clamp unit 130 includes a clamping part 131 and a connecting part 132. The connecting part 132 is fixed on the clamping part 131. The clamping part 131 clamps the cable 120. The connecting part 132 is fixedly connected to the bridge deck 140.

[0035] As a further preferred embodiment, the connecting portion 132 is a group-staple connecting plate, with pre-drilled nail holes below the bridge deck. The group-staple connecting plate includes shear studs, which are fixed within the nail holes. The gap between the shear studs and the nail holes is filled with concrete. The shear studs are driven into the bridge deck 140, improving the stability of the bridge deck 140 and the connecting portion 132, and preventing relative displacement between the bridge deck 140 and the cable 120 under lateral wind loads, which could cause the cable 120 to detach from the bridge deck 140.

[0036] In one embodiment, the bridge deck structure 10 of the catenary arch bridge further includes a cable saddle 210. The cable saddle 210 is disposed between the cable 120 and the arch ring 20 for connecting the cable 120 and the arch ring below. The cable saddle 210 is fixed on the arch ring 20, and its position corresponds to the position of the bridge deck joint. The cable saddle 210 includes a cable channel, and the middle part of the cable 120 is slidably connected in the cable channel. The cable 120 is mounted on the cable saddle 210, transferring the bridge deck load to the cable saddle 210. The cable saddle 210 provides support to the cable 120 through the arch ring 20. The cable channel inside the cable saddle 210 has a smooth curved surface, allowing the cable 120 to smoothly change direction and avoiding excessive bending stress and local compression damage to the steel wire.

[0037] As a further preferred embodiment, multiple cable saddles 210 are provided along the transverse direction of the catenary arch bridge, and one or more cable channels are provided parallel to each other on a single cable saddle 210. In this embodiment, the cable saddles 210 and cables 120 can correspond one-to-one, or multiple cables 120 can correspond to one cable saddle 210, thereby improving the flexibility of construction.

[0038] In one embodiment, the bridge deck structure 10 of the catenary arch bridge further includes a cable anchoring structure. This cable anchoring structure is fixed inside the mountains on both sides, and the ends of the cables 120 are respectively fixedly connected to the corresponding cable anchoring structures. In this embodiment, the cable anchoring structure includes an anchoring body 110. A toothed ledge 113 is formed at the bottom of the anchoring body 110, extending into the mountainside. The stepped surface of the toothed ledge 113 faces the cable 120. The stepped surface of the toothed ledge 113 points in the direction of the cable 120's tension. By fixing itself inside the mountainside, the toothed ledge 113 increases the contact area of ​​the anchoring body 110 to improve resistance, thereby enhancing the stability of the cable anchoring structure.

[0039] In a further preferred embodiment, the cable anchoring structure further includes a tensioning and steering device 112 and an anchoring chamber 111. The cable 120 is mounted on the tensioning and steering device 112 and is slidably connected to it. The end of the cable 120 is fixed inside the anchoring chamber 111, which is connected to the outside. The tensioning and steering device 112 changes the traction direction of the cable 120, making the tension direction of the cable 120 perpendicular to the ground line of the mountain. Adjusting the height of the tensioning and steering device 112 provides sufficient preload to the cable 120. After the cable 120 deforms and lengthens during long-term use, adjusting the tensioning and steering device 112 can more quickly adapt to the length of the cable 120. The anchoring chamber 111 is connected to the outside, facilitating technicians to enter and inspect or replace the cable 120.

[0040] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A bridge deck structure for a catenary arch bridge, characterized in that, It includes multiple bridge decks and multiple cables, which are parallel to each other. The two ends of the cables are anchored to the mountains on both sides, and the cables are taut to apply pretension. The multiple bridge decks are fixed above the cables along the cables and are connected to each other to form a whole. Each bridge deck is simultaneously fixed to the multiple cables.

2. The bridge deck structure of the catenary arch bridge according to claim 1, characterized in that, It also includes multiple cable clamp units, which are disposed between the bridge deck and the cable. Each cable clamp unit includes a clamping part and a connecting part. The connecting part is fixed to the clamping part, the clamping part clamps the cable, and the connecting part is fixedly connected to the bridge deck.

3. The bridge deck structure of the catenary arch bridge according to claim 2, characterized in that, The connecting part is a group nail connecting plate. Nail holes are reserved below the bridge deck. The group nail connecting plate includes shear nails. The shear nails are fixed in the nail holes. The gap between the shear nails and the nail holes is filled with concrete.

4. The bridge deck structure of the catenary arch bridge according to claim 1, characterized in that, A bridge deck joint is reserved between two adjacent bridge decks, and concrete is poured into the bridge deck joint to connect the multiple bridge decks into one piece.

5. The bridge deck structure of the catenary arch bridge according to claim 4, characterized in that, It also includes a cable saddle, which is used to connect the cable to the arch below. The position of the cable saddle corresponds to the position of the bridge deck joint. The cable saddle includes a cable channel, and the cable is slidably connected in the cable channel.

6. The bridge deck structure of the catenary arch bridge according to claim 5, characterized in that, Multiple cable saddles are provided along the transverse direction of the catenary arch bridge, and one or more cable channels are provided parallel to each cable saddle.

7. The bridge deck structure of the catenary arch bridge according to claim 1, characterized in that, It also includes a cable anchoring structure, which is fixed inside the mountains on both sides, and the ends of the cables are fixedly connected to the cable anchoring structure.

8. The bridge deck structure of the catenary arch bridge according to claim 7, characterized in that, The cable anchoring structure includes an anchoring body, the bottom of which has a toothed groove, and the stepped surface of the toothed groove faces the cable.

9. The bridge deck structure of the catenary arch bridge according to claim 7, characterized in that, The cable anchoring structure also includes a tensioning and turning device and an anchoring chamber. The cable is mounted on the tensioning and turning device and is slidably connected to the tensioning and turning device. The end of the cable is fixed in the anchoring chamber, which is connected to the outside.

10. A pedestrian catenary arch bridge, characterized in that, The bridge deck structure includes an arch ring and a catenary arch bridge as described in any one of claims 1-9, wherein the catenary arch bridge deck structure is fixed to the arch ring.

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