A suspended single-track pier-beam consolidated beam bridge

Abstract

The embodiment of the present application provides a suspended monorail pier-beam consolidated beam bridge, including: a plurality of truss structures and a plurality of piers; each of the truss structures respectively includes a main truss and a track beam assembly, the main truss includes an upper chord, a lower chord and a plurality of web members, the track beam assembly includes a track beam, a plurality of the web members connect the upper chord and the lower chord, the track beam assembly is connected to the upper chord, and the track beam is located on the side of the upper chord; one of the truss structures is respectively arranged between every two adjacent piers, and the main truss of each truss structure is rigidly connected to the corresponding pier. The suspended monorail pier-beam consolidated beam bridge in the embodiment of the present application can greatly improve the spanning ability, and thus can meet the large-span requirements at control nodes such as crossing high-grade roads and rivers.

Description

Technical Field

[0001] The present application relates to the field of urban rail transit, and in particular to a suspended monorail pier-beam consolidated beam bridge. Background Art

[0002] In the related art, there is a type of suspended monorail beam bridge whose track beam has an open thin-walled box-shaped cross-section. The box-shaped cross-section is surrounded by a top plate, a web plate and a bottom plate, wherein the bottom plate includes two left and right steel plates with an opening formed between the two steel plates. The train bogie is arranged in the track beam and is connected to the body of the suspended monorail train through the opening between the left and right steel plates.

[0003] However, since this type of track beam adopts a thin-walled and open-bottom structure, the torsional stiffness of this type of track beam is relatively small. Under the action of train loads, wind loads, etc., the track beam is subjected to large torque and is prone to deformation. Therefore, the applicable span range of the track beam is severely limited. When the suspended monorail beam bridge needs to cross control nodes such as high-grade roads and rivers, the spanning capacity of the suspended monorail beam bridge is difficult to meet the demand for a large span of the bridge span structure at the control nodes. Summary of the Invention

[0004] In view of this, the embodiments of the present application hope to provide a suspended monorail pier-beam consolidated beam bridge that can improve the spanning capacity.

[0005] To achieve the above objectives, the present invention provides a suspended monorail pier-beam consolidated beam bridge, comprising:

[0006] A plurality of truss structures, each of the truss structures comprises a main truss and a track beam assembly, the main truss comprising an upper chord, a lower chord, and a plurality of web members, the track beam assembly comprising a track beam, a plurality of web members connecting the upper chord and the lower chord, the track beam assembly being connected to the upper chord, and the track beam being located on a side of the upper chord;

[0007] There are multiple bridge piers, and a truss structure is respectively arranged between every two adjacent bridge piers. The main truss of each truss structure is rigidly connected to the corresponding bridge pier.

[0008] In one embodiment, the track beam assembly further comprises a plurality of first cross beams, which are spaced apart along the extension direction of the suspended monorail pier-beam consolidated beam bridge, one end of each of the first cross beams being connected to the upper chord, and the other end of each of the first cross beams being connected to the track beam.

[0009] In one embodiment, there are two track beams, and the two track beams are respectively arranged on both sides of the upper chord.

[0010] In one embodiment, the track beam assembly further includes two second cross beams;

[0011] Each end of the upper chord along its extending direction is respectively connected to one of the second cross beams, and each second cross beam is respectively connected to the track beam.

[0012] In one embodiment, each second cross beam is rigidly connected to the top surface of the corresponding pier.

[0013] In one embodiment, the main truss further includes at least two support rods. At least one support rod is arranged at each end of the lower chord along its extending direction. The top end of each support rod is rigidly connected to the lower chord, and the bottom end of each support rod is rigidly connected to the corresponding pier.

[0014] In one embodiment, one support rod is respectively arranged at each end of the lower chord along its extending direction. The top end of the web member closest to the pier is rigidly connected to the corresponding pier, and the bottom end of the web member closest to the pier is connected to the top end of the corresponding support rod.

[0015] In one embodiment, the main truss is assembled from multiple truss segments, and the length of each truss segment is 15 m to 30 m; and / or,

[0016] The track beam is assembled from multiple track beam segments, and the length of each track beam segment is 15 m to 30 m.

[0017] In one embodiment, the track beam includes a box body, and webs and multiple diaphragms arranged in the box body;

[0018] The webs are connected to the bottom wall and the top wall of the box body to partition two chambers in the box body. The two chambers are respectively a first chamber and a second chamber, and the first chamber is located on the side of the second chamber close to the main truss;

[0019] Multiple diaphragms are arranged in the first chamber and are spaced along the extending direction of the suspended monorail pier-beam consolidated beam bridge. Each diaphragm is respectively connected to the inner wall of the first chamber;

[0020] An opening is provided on the bottom wall of the second chamber. The opening extends along the extending direction of the suspended monorail pier-beam consolidated beam bridge. The inner surfaces of the bottom wall of the second chamber on both sides of the opening form running surfaces.

[0021] In one embodiment, the track beam further includes a plurality of first stiffening plates, and the plurality of first stiffening plates are disposed on a side of the box body facing away from the main truss and are spaced apart along the extending direction of the suspended monorail pier-beam consolidated beam bridge; and / or,

[0022] The track beam further includes a plurality of second stiffening plates, and the plurality of second stiffening plates are disposed on an outer surface of the top wall of the box body and are spaced apart along the extending direction of the suspended monorail pier-beam consolidated beam bridge; and / or,

[0023] The track beam further includes a plurality of third stiffening plates, and the plurality of third stiffening plates are disposed on an outer surface of the bottom wall of the box body and are spaced apart along the extending direction of the suspended monorail pier-beam consolidated beam bridge.

[0024] An embodiment of the present application provides a suspended monorail pier-beam consolidated beam bridge. By connecting the track beam assembly to the upper chord and rigidly connecting the main truss to the corresponding pier, not only can the torsional stiffness of the track beam be greatly improved, but also the overall stiffness and stability of the suspended monorail pier-beam consolidated beam bridge can be enhanced. Thus, the span of the suspended monorail pier-beam consolidated beam bridge can be increased to more than 80 m, thereby greatly improving the spanning ability of the suspended monorail pier-beam consolidated beam bridge, and further meeting the large-span requirements at control nodes such as crossing high-class roads and rivers. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic structural diagram of a suspended monorail pier-beam consolidated beam bridge according to an embodiment of the present application;

[0026] Figure 2 is Figure 1 a top view of the suspended monorail pier-beam consolidated beam bridge shown;

[0027] Figure 3 is Figure 1 a schematic connection diagram of the main truss and the pier shown in, in which the track beam assembly is omitted;

[0028] Figure 4 is Figure 2 a view in the direction A of.

[0029] DESCRIPTION OF THE REFERENCE NUMERALS

[0030] Truss structure 100; Main truss 110; Upper chord 111; Lower chord 112; Web member 113; Support rod 114; Track beam assembly 120; Track beam 121; Box body 1211; First chamber 1211a; Second chamber 1211b; Opening 1211c; Running surface 1211d; Web 1212; Diaphragm 1213; First reinforcing plate 1214; Second reinforcing plate 1215; Third reinforcing plate 1216; First cross beam 122; Second cross beam 123; Bridge pier 200. Detailed implementation manners

[0031] It should be noted that, without conflict, the embodiments in the present application and the technical features in the embodiments can be combined with each other. The detailed description in the specific implementation manners should be understood as an explanatory illustration of the gist of the present application and should not be regarded as an improper limitation to the present application.

[0032] In the description of the present application, the "extension direction", "lateral direction", "top", "bottom" orientation or positional relationship is based on the Figure 1 orientation or positional relationship shown in the drawings. It should be understood that these orientation terms are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present application.

[0033] An embodiment of the present application provides a suspended monorail pier-beam consolidated beam bridge. Please refer to Figures 1 to 3 , the suspended monorail pier-beam consolidated beam bridge includes a plurality of truss structures 100 and a plurality of bridge piers 200. Each truss structure 100 respectively includes a main truss 110 and a track beam assembly 120. The main truss 110 includes an upper chord 111, a lower chord 112 and a plurality of web members 113. The track beam assembly 120 includes a track beam 121. The plurality of web members 113 connect the upper chord 111 and the lower chord 112. The track beam assembly 120 is connected to the upper chord 111. The track beam 121 is located on the side of the upper chord 111. One truss structure 100 is respectively arranged between every two adjacent bridge piers 200. The main truss 110 of each truss structure 100 is rigidly connected to the corresponding bridge pier 200.

[0034] In the related art, limited by the torsional stiffness of the track beam, the span of the suspended monorail beam bridge generally does not exceed 30 m, and this span is difficult to meet the large-span requirements at control nodes such as crossing high-class roads and rivers.

[0035] In the embodiment of the present application, the track beam assembly 120 can form a stress integral body with the main truss 110 by connecting with the upper chord 111. This stress integral body can jointly bear external loads such as train loads and wind loads. Therefore, the torsional stiffness of the track beam 121 can be greatly improved. When the span of the track beam 121 is large, the track beam 121 can also have good anti-deformation ability. And the main truss 110 can form a pier-beam consolidation system by rigidly connecting with the corresponding pier 200. Therefore, the overall stiffness and stability of the suspended monorail pier-beam consolidated beam bridge can be improved. By connecting the track beam assembly 120 with the upper chord 111 and rigidly connecting the main truss 110 with the corresponding pier 200, the span of the suspended monorail pier-beam consolidated beam bridge in the embodiment of the present application can reach more than 80m. Compared with the traditional suspended monorail beam bridge with a span not exceeding 30m, the suspended monorail pier-beam consolidated beam bridge in the embodiment of the present application greatly improves the spanning ability, and thus can meet the large-span requirements at controlled nodes such as crossing high-grade roads and rivers.

[0036] In addition, since the torsional stiffness of the track beam 121 has been greatly improved, the comfort and smoothness of the suspended monorail train during operation can also be improved in the suspended monorail pier-beam consolidated beam bridge of the embodiment of the present application.

[0037] The suspended monorail pier-beam consolidated beam bridge in the embodiment of the present application has a simple structure, clear stress, and good landscape effect.

[0038] In one embodiment, the pier 200 can be made of steel structure. The pier 200, the main truss 110, and the track beam 121 can be processed and manufactured uniformly in the factory, so that the processing and installation accuracy can be improved.

[0039] In some embodiments, the pier 200 can also be made of reinforced concrete structure.

[0040] For the convenience of transportation, the main truss 110 can be divided into multiple truss segments, and the length of each truss segment is 15m - 30m. Multiple truss segments are processed and manufactured in the factory and assembled at the construction site.

[0041] Similarly, the track beam 121 can also be divided into multiple track beam segments, and the length of each track beam segment is 15m - 30m. Multiple track beam segments are processed and manufactured in the factory and assembled at the construction site.

[0042] In one embodiment, please refer to Figure 1 and Figure 2, the track beam assembly 120 further includes a plurality of first cross beams 122. The plurality of first cross beams 122 are arranged at intervals along the extending direction of the suspended monorail pier-beam consolidated beam bridge. One end of each first cross beam 122 is connected to the upper chord 111, and the other end of each first cross beam 122 is connected to the track beam 121. The plurality of spaced first cross beams 122 can divide the track beam 121 into multiple smaller-span segments. Thus, the torsional stiffness of the track beam 121 can be further improved.

[0043] The first cross beam 122 is also processed and manufactured in the factory. In order to minimize the assembly workload at the construction site, the first cross beam 122 can be connected to the track beam 121 in the factory to form an integral body, and then directly connected to the upper chord 111 at the construction site.

[0044] In some embodiments, the first cross beam 122 may not be provided. The track beam 121 can be directly connected to the upper chord 111, or the track beam 121 can be connected to the upper chord 111 through other intermediate connectors, as long as it is ensured that the track beam assembly 120 can be connected to the upper chord 111.

[0045] In one embodiment, please refer to Figure 1 , Figure 2 and Figure 4 , the number of track beams 121 is two, and the two track beams 121 are respectively arranged on both sides of the upper chord 111. That is to say, both sides of the main truss 110 can be used for the suspended monorail train to pass.

[0046] In some embodiments, the track beam 121 may also be provided only on one side of the upper chord 111.

[0047] In one embodiment, please refer to Figure 1 , Figure 2 and Figure 4 , the track beam assembly 120 further includes two second cross beams 123; each end of the opposite ends of the upper chord 111 along the extending direction is respectively connected to a second cross beam 123, and each second cross beam 123 is respectively connected to the track beam 121.

[0048] Specifically, when the number of track beams 121 on the suspended single-rail pier-beam consolidated bridge is one, one end of each second cross beam 123 along the transverse direction can be connected to the upper chord 111, and the other end can be connected to the track beam 121; when the number of track beams 121 on the suspended single-rail pier-beam consolidated bridge is two, each end of each second cross beam 123 along the transverse direction can be respectively connected to a track beam 121, and each end of the upper chord 111 along the extending direction is connected to the side wall of the corresponding second cross beam 123. That is to say, the upper chord 111, the track beam 121 and the two second cross beams 123 can be assembled into a frame structure, thereby further improving the stability of the connection between the track beam assembly 120 and the upper chord 111.

[0049] In one embodiment, please refer to Figure 1 、 Figure 2 and Figure 4 , each second cross beam 123 is rigidly connected to the top surface of the corresponding pier 200 respectively. That is to say, the installation height of the lower chord 112 is lower than the installation height of the top surface of the pier 200. Thereby, the overall height of the suspended single-rail pier-beam consolidated bridge can be effectively reduced, so that not only the space occupied by the suspended single-rail pier-beam consolidated bridge can be reduced, but also the overall stability of the suspended single-rail pier-beam consolidated bridge can be further improved.

[0050] In one embodiment, please refer to Figure 1 and Figure 3 , the main truss 110 further includes at least two support rods 114. At least one support rod 114 is arranged at each end of the lower chord 112 along the extending direction. The top end of each support rod 114 is rigidly connected to the lower chord 112, and the bottom end of each support rod 114 is rigidly connected to the corresponding pier 200. That is to say, only one support rod 114 can be arranged at each end of the lower chord 112 along the extending direction, or multiple support rods 114 can be arranged. The support rods 114 can improve the firmness of the connection between the main truss 110 and the pier 200. Thereby, the overall stability of the suspended single-rail pier-beam consolidated bridge is further improved.

[0051] In one embodiment, please refer to Figure 1 and Figure 3 , one support rod 114 is respectively arranged at each end of the lower chord 112 along the extending direction. The top end of the web member 113 closest to the pier 200 is rigidly connected to the corresponding pier 200, and the bottom end of the web member 113 closest to the pier 200 is connected to the top end of the corresponding support rod 114. That is to say, a triangular support structure is formed among the web member 113 closest to the pier 200, the corresponding support rod 114 and the corresponding pier 200. Thereby, the firmness of the connection between the main truss 110 and the pier 200 can be further improved.

[0052] In one embodiment, please refer to Figure 4 The track beam 121 includes a box body 1211, a web 1212 and a plurality of transverse partitions 1213 arranged in the box body 1211; the web 1212 is connected to the bottom wall of the box body 1211 and the top wall of the box body 1211 to separate two chambers in the box body 1211. For the convenience of description, the two chambers are respectively referred to as the first chamber 1211a and the second chamber 1211b. The first chamber 1211a is located on the side of the second chamber 1211b close to the main truss 110; multiple Transverse diaphragms 1213 are disposed in the first chamber 1211a and spaced apart along the extension direction of the suspension monorail pier-beam consolidation bridge. Each transverse diaphragm 1213 is connected to the inner wall of the first chamber 1211a. The bottom wall of the second chamber 1211b is provided with an opening 1211c, which extends along the extension direction of the suspension monorail pier-beam consolidation bridge. The inner surfaces of the bottom wall of the second chamber 1211b located on both sides of the opening 1211c form running surfaces 1211d. In other words, the track beam 121 has a single-box, dual-chamber structure. The bogie of the suspension monorail train is disposed in the second chamber 1211b and connected to the body of the suspension monorail train through the opening 1211c. The wheels of the bogie can roll directly on the running surface 1211d in the second chamber 1211b or on the running rails laid on the running surface 1211d. The multiple transverse partitions 1213 in the first cavity 1211 a can strengthen the track beam 121 to further improve the torsional rigidity of the track beam 121 .

[0053] In one embodiment, please refer to Figure 4 The track beam 121 further includes a plurality of first reinforcing plates 1214, which are disposed on a side of the box body 1211 facing away from the main truss 110 and spaced apart along the extension direction of the suspended monorail pier-beam consolidation bridge. These first reinforcing plates 1214 also reinforce the track beam 121, thereby further improving the torsional rigidity of the track beam 121.

[0054] In one embodiment, please refer to Figure 4 The track beam 121 also includes a plurality of second reinforcing plates 1215, which are arranged on the outer surface of the top wall of the box body 1211 and are spaced apart along the extension direction of the suspended monorail pier-beam consolidated beam bridge. The plurality of second reinforcing plates 1215 can also strengthen the track beam 121, thereby further improving the torsional stiffness of the track beam 121.

[0055] In one embodiment, please refer to Figure 4, the track beam 121 further includes a plurality of third reinforcing plates 1216. The plurality of third reinforcing plates 1216 are arranged on the outer surface of the bottom wall of the box body 1211 and are spaced apart along the extending direction of the suspended monorail pier-beam consolidated beam bridge. The plurality of third reinforcing plates 1216 can also play a role in strengthening the track beam 121. Thus, the torsional stiffness of the track beam 121 can be further improved.

[0056] The various embodiments / implementations provided in this application can be combined with each other without contradiction.

[0057] The above are only the preferred embodiments of this application and are not used to limit this application. For those skilled in the art, this application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application are all included in the protection scope of this application.

Claims

1. A suspended monorail pier-beam consolidated beam bridge, characterized in that, Comprising: A plurality of truss structures, each of the truss structures respectively comprising a main truss and a track beam assembly. The main truss comprises an upper chord, a lower chord and a plurality of web members. The track beam assembly comprises a track beam and two second cross beams. The plurality of web members connect the upper chord and the lower chord. The track beam assembly is connected to the upper chord. The track beam is located on the side of the upper chord. Each of the opposite ends of the upper chord in the extending direction is respectively connected to one of the second cross beams. Each of the second cross beams is respectively connected to the track beam. A plurality of bridge piers, with one of the truss structures respectively arranged between each adjacent two of the bridge piers. The main truss of each of the truss structures is respectively rigidly connected to the corresponding bridge pier, and each of the second cross beams is respectively rigidly connected to the top surface of the corresponding bridge pier.

2. The suspended monorail pier-beam consolidation bridge according to claim 1, characterized in that: The track beam assembly further comprises a plurality of first cross beams. The plurality of first cross beams are arranged at intervals in the extending direction of the suspended monorail pier-beam consolidated beam bridge. One end of each of the first cross beams is connected to the upper chord, and the other end of each of the first cross beams is connected to the track beam.

3. The suspended monorail pier-beam consolidated girder bridge according to claim 1 or 2, characterized in that, The number of the track beams is two, and the two track beams are respectively arranged on both sides of the upper chord.

4. The suspended monorail pier-beam consolidated beam bridge according to claim 1 or 2, wherein the main truss further comprises at least two support rods. At least one support rod is arranged at each of the opposite ends of the lower chord in the extending direction. The top end of each support rod is rigidly connected to the lower chord, and the bottom end of each support rod is rigidly connected to the corresponding bridge pier.

5. The suspended monorail pier-beam consolidated beam bridge according to claim 4, wherein One support rod is respectively arranged at each of the opposite ends of the lower chord in the extending direction. The top end of the web member closest to the bridge pier is rigidly connected to the corresponding bridge pier, and the bottom end of the web member closest to the bridge pier is connected to the top end of the corresponding support rod.

6. The suspended monorail pier-beam consolidated girder bridge according to claim 1 or 2, characterized in that, the main truss is assembled by a plurality of truss segments, and the length of each truss segment is 15m to 30m; and / or the track beam is assembled by a plurality of track beam segments, and the length of each track beam segment is 15m to 30m.

7. The suspended monorail pier-beam consolidated girder bridge according to claim 6, wherein The track beam comprises a box body, and a web and a plurality of cross partitions arranged in the box body; the web is connected to the bottom wall and the top wall of the box body to partition two chambers in the box body. The two chambers are respectively a first chamber and a second chamber. The first chamber is located on the side of the second chamber close to the main truss; a plurality of the cross partitions are arranged in the first chamber and are arranged at intervals in the extending direction of the suspended monorail pier-beam consolidated beam bridge. Each of the cross partitions is respectively connected to the inner wall of the first chamber; an opening is arranged on the bottom wall of the second chamber. The opening extends in the extending direction of the suspended monorail pier-beam consolidated beam bridge. The inner surfaces of the bottom wall of the second chamber on both sides of the opening form running surfaces.

8. The suspended monorail pier-beam consolidated girder bridge according to claim 7, characterized in that, The track beam further comprises a plurality of first reinforcing plates, which are arranged on a side of the box body away from the main truss and spaced apart along the extension direction of the suspended monorail pier-beam consolidated beam bridge; and / or, The track beam further comprises a plurality of second reinforcing plates, which are arranged on the outer surface of the top wall of the box body and spaced apart along the extension direction of the suspended monorail pier-beam consolidated beam bridge; and / or, The track beam further includes a plurality of third reinforcing plates, which are arranged on the outer surface of the bottom wall of the box body and are spaced apart along the extension direction of the suspended monorail pier-beam consolidated beam bridge.

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