A cable-stayed bridge suitable for rubber-tyred trams and municipal passages

Abstract

The present invention discloses a cable-stayed bridge suitable for the co-construction of a rubber-wheeled tram and a municipal passage, comprising a bridge tower, a guide rail beam and a municipal passage; the bridge towers on both sides are located on the top of the bridge piers, a bridge tower cross beam is provided between the lower tower columns of the bridge tower, and a corresponding guide rail beam is longitudinally provided on the bridge tower cross beam for supporting the rubber-wheeled tram of the corresponding line; the cable-stayed bridge is provided with a plurality of cross beams at intervals along the bridge direction to connect the guide rail beams, the vertical length of the guide rail beams is greater than the vertical length of the cross beams, and each of the cross beams passes through the guide rail beams and is fixed thereto; the space extending from the cross bridge of the cross beam to both sides is provided with the municipal passage, and the municipal passage is provided outside the cable-stayed cable, forming a cable-stayed bridge structure co-constructed by the rubber-wheeled tram and the municipal passage. The present invention utilizes the guide rail beams themselves as the load-bearing structure, so that the overall structural height of the bridge is small, and at the same time utilizes the extension of the two sides of the bridge in the horizontal direction to form a wider bridge deck to provide a setting space for the municipal passage.

Description

Technical Field

[0001] The present invention belongs to the technical field of rail transit bridge structures, and more specifically, relates to a cable-stayed bridge suitable for co-construction of a rubber-tyred tram and a municipal passage. Background Art

[0002] Rubber-tyred trams have many advantages such as good landscape, low cost and low noise. At present, many large and medium-sized cities and megacities in China have high enthusiasm for rubber-tyred trams in their rail transit branches. Many cities are planning and building rubber-tyred trams and using them as urban operating lines. The market potential is huge.

[0003] As a bridge structure that combines beams and rails, the rail beams of rubber-tyred trams must meet the requirements of bearing train loads and train running lines at the same time. The cross-sectional dimensions of the rail beams of rubber-tyred trams are small and the span is limited. If the need for a large span is to be met, a beam-on-beam structure is generally adopted, that is, a support beam is set under the track beam as a support platform for the track beam. Commonly used support beam structures include simply supported beams, continuous beams, and continuous rigid frames. If the span is increased, in order to solve the problem of the small cross-sectional dimensions of the rail beams of rubber-tyred trams, a cable-stayed bridge is required.

[0004] like Figure 1 FIG. 1 is a cross-sectional schematic diagram of a beam-on-beam structure commonly used in the prior art. The guide beam joist 2 is located on the top of the bridge pier 1, and a support and a pad stone 3 are provided on the top surface of the guide beam joist 2 to support the existing guide beam 4 above. When crossing large rivers, the navigation clearance under the bridge or the 100-year water level are often controlled. When the clearance under the bridge is limited, when a beam-on-beam structure is used, such as Figure 1 As shown, since the existing guide rail beam 4 does not participate in the overall force, as the span increases, the height of the track beam support beam 2 increases rapidly. The combined structure of the track beam support beam 2 and the existing guide rail beam 4 is relatively high. On the one hand, it will greatly raise the overall track surface elevation of the line and increase the project cost. On the other hand, the overall structure is relatively bulky and the landscape is poor. Summary of the invention

[0005] In view of the above defects or improvement needs of the prior art, the present invention provides a cable-stayed bridge suitable for the co-construction of a rubber-tyred tram and a municipal passage, which utilizes the guide rail beam itself as a load-bearing structure to reduce the overall structural height of the bridge. At the same time, the extension of the lateral sides of the bridge is utilized to form a wider bridge deck to provide a setting space for the municipal passage, thereby forming a cable-stayed bridge structure co-constructed by a rubber-tyred tram and a municipal passage.

[0006] To achieve the above-mentioned object, the present invention provides a cable-stayed bridge suitable for co-construction of rubber-tyred trams and municipal passages, comprising a bridge tower, a guide rail beam and a municipal passage; wherein:

[0007] The bridge towers on both sides are located on the top of the bridge piers, and bridge tower cross beams are arranged between the lower tower columns of the bridge towers, and corresponding guide rail beams are longitudinally arranged on the bridge tower cross beams to support the rubber-tyred trams of the corresponding lines;

[0008] The cable-stayed bridge is provided with a plurality of cross beams at intervals along the bridge direction to connect the guide rail beams, the vertical length of the guide rail beams is greater than the vertical length of the cross beams, and each of the cross beams passes through the guide rail beams and is fixed thereto;

[0009] The municipal passage is arranged in the space extending to both sides of the cross bridge of the cross beam, and the municipal passage is arranged on the outside of the inclined cable, forming a cable-stayed bridge structure jointly constructed by the rubber-tyred tram and the municipal passage.

[0010] Furthermore, the cross beam comprises a reinforcing cross beam and an anchoring cross beam, the anchoring cross beam is provided with a stay cable anchoring point for fixing the stay cable, and the reinforcing cross beam is arranged at the bridge tower and at positions on both sides thereof where there is no stay cable.

[0011] Furthermore, the reinforcing beam at the bridge tower position is anchored on the bridge tower.

[0012] Furthermore, one end of the stay cable is fixed to the stay cable anchor point, and the other end is fixed to the top of the bridge tower.

[0013] Furthermore, the cross sections of the reinforcing cross beam and the anchoring cross beam are consistent.

[0014] Furthermore, a plurality of common cross beams are arranged laterally between the guide rail beams, and the common cross beams are denser than the reinforcing cross beams and the anchoring cross beams.

[0015] Furthermore, a support and a cushion stone are provided on the top surface of the bridge tower cross beam, and the bottom of the guide rail beam is supported on the support and the cushion stone.

[0016] Furthermore, a municipal channel longitudinal beam is provided at the bottom of the municipal channel, and the municipal channel longitudinal beam is provided at the outer ends of the reinforcing beam and the anchoring beam.

[0017] Furthermore, the vertical length of the municipal channel longitudinal beam is smaller than the guide rail beam, and the vertical length of the municipal channel longitudinal beam is smaller than the thickness of the cross beam.

[0018] Furthermore, the municipal passage can be used as at least a motor vehicle lane, a non-motor vehicle lane, a pedestrian lane or a landscape corridor according to actual needs.

[0019] In general, the above technical solutions conceived by the present invention can achieve the following beneficial effects compared with the prior art:

[0020] (1) The cable-stayed bridge of the present invention is suitable for a rubber-tyred tram and a municipal passage. The guide rail beam is connected by a plurality of reinforcing beams and anchoring beams arranged at intervals in the longitudinal direction of the bridge, and the bottom is supported by a bridge tower beam arranged between the lower tower columns of the bridge tower. The guide rail beam itself is used as a load-bearing structure, avoiding the situation in the prior art where a guide rail beam support beam is additionally arranged on the top of the bridge pier, thereby reducing the overall structural height of the bridge. At the same time, the extension of the bridge on both sides in the horizontal direction is used to form a wider bridge deck, which can provide a setting space for the municipal passage, thereby forming a cable-stayed bridge structure for a rubber-tyred tram and a municipal passage.

[0021] (2) The cable-stayed bridge of the present invention, which is suitable for the construction of rubber-tyred trams and municipal passages, adopts reinforcing beams and anchoring beams to connect the track beams, so that the overall structural rigidity is large, and a number of more densely packed ordinary beams are arranged between the track beams to further increase the connection strength; the reinforcing beams, anchoring beams, ordinary beams and guide rail beams are preferably made of steel structures, which have the advantages of light structure and fast construction speed.

[0022] (3) The cable-stayed bridge of the present invention, which is suitable for the construction of rubber-tyred trams and municipal passages, uses anchoring and strengthening beams to extend outwards as a support system for the municipal passage, which can effectively utilize urban space; and the municipal passage longitudinal beams provided at the bottom of the municipal passage can not only increase the overall stiffness of the bridge, but also serve as auxiliary support for the municipal passage, thereby greatly reducing the road surface structure height of the municipal passage; the bridge towers and the inclined cables can be set using the safe distance between the municipal passage and the train, thereby saving bridge deck space.

[0023] (4) The cable-stayed bridge of the present invention, which is suitable for the construction of rubber-tyred trams and municipal passages, has a small structure height, good landscape, light structure weight, fast construction speed and low cost. It can greatly reduce the height of the bridge structure and the track surface elevation while ensuring the spanning capacity, navigation capacity, flood control capacity and overall structural stiffness, and form a new traffic passage by utilizing the expansion of the structure itself, thereby saving urban space. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a cross-sectional schematic diagram of the upper beam structure of the middle beam in the prior art;

[0025] Figure 2 This is a schematic diagram of the structure of a cable-stayed bridge suitable for co-construction of a rubber-tyred tram and a municipal passage according to an embodiment of the present invention;

[0026] Figure 3 This is a schematic cross-sectional view of a tower of a cable-stayed bridge suitable for co-construction of a rubber-tyred tram and a municipal passage according to an embodiment of the present invention;

[0027] Figure 4 A cable-stayed bridge suitable for co-construction of a rubber-tyred tram and a municipal channel according to an embodiment of the present invention Figure 1A partial enlarged view of

[0028] Figure 5 A cable-stayed bridge suitable for co-construction of a rubber-tyred tram and a municipal channel according to an embodiment of the present invention Figure 4 A top view of

[0029] Figure 6 The present invention is a schematic cross-sectional view of an anchor beam of a cable-stayed bridge suitable for co-construction of a rubber-tyred tram and a municipal passage according to an embodiment of the present invention.

[0030] In all the drawings, the same figure numbers represent the same technical features, specifically: 1-bridge pier, 2-guide beam supporting beam, 3-support and pad stone, 4-existing guide beam, 5-bridge tower, 6-bridge tower crossbeam, 7-guide beam, 8-municipal channel longitudinal beam, 9-reinforced beam, 10-anchor beam, 11-cable, 12-support, 13-pad stone, 14-ordinary beam, 15-municipal channel, 16-cable anchor point. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0033] Unless otherwise clearly defined and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed 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 the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] The present invention designs a method that uses the guide rail beam itself to bear the train load without using a beam-on-beam structure, and at the same time meets the overall rigidity requirement. Figure 2 This is a schematic diagram of a cable-stayed bridge structure suitable for co-construction of a rubber-tyred tram and a municipal passage according to an embodiment of the present invention. Figure 3 The cross-sectional view of a cable-stayed bridge tower suitable for co-construction of a rubber-tyred tram and a municipal passage according to an embodiment of the present invention is shown in FIG. Figure 2 and Figure 3 The cable-stayed bridge of the present invention, which is suitable for co-construction of rubber-tyred trams and municipal passages, comprises a bridge tower 5, a bridge tower beam 6, a guide rail beam 7, a reinforcement beam 9, an anchor beam 10, a stay cable 11 and a municipal passage 15, etc.

[0035] The bridge towers 5 on both sides are located at the top of the bridge piers. A bridge tower cross beam 6 is arranged between the lower tower columns of the bridge tower 5. A guide rail beam 7 is arranged on the bridge tower cross beam 6. A support 12 and a cushion stone 13 are arranged on the top of the bridge tower cross beam 6. The top of the cushion stone 13 is used to support the bottom of the guide rail beam 7. A guide rail is arranged on the guide rail beam 7 to support the rubber-wheeled tram on the corresponding line; Figure 2 In the preferred embodiment shown, two guide rail beams 7 are symmetrically arranged on the bridge tower cross beam 6 for supporting the bidirectional rubber-tyred tram above.

[0036] Figure 4 A cable-stayed bridge suitable for co-construction of a rubber-tyred tram and a municipal channel according to an embodiment of the present invention Figure 1 A partial enlarged view. A reinforcing beam 9 and an anchoring beam 10 are provided at intervals in the longitudinal direction and are fixed to the guide rail beam 7 respectively. The use of the reinforcing beam and the anchoring beam to connect the guide rail beam can solve the problem of the guide rail beam's own soft rigidity, thereby strengthening the overall rigidity of the bridge. Figure 5 for Figure 4 A top view of Figure 5 The reinforcing cross beam 9 and the anchoring cross beam 10 have the same structure, and the reinforcing cross beam 9 and the anchoring cross beam 10 are connected to the guide rail beam 7 in the same manner and structure. The difference is that the reinforcing cross beam 9 is provided with a cable anchoring point 16 for fixing the cable 11, one end of the cable 11 is fixed to the cable anchoring point 16, and the other end is fixed to the top of the bridge tower 5. Therefore, the setting position of the anchoring cross beam 10 is determined according to the fixing position of the cable, and can be appropriately supplemented and encrypted as needed.

[0037] Reinforced cross beams 9 are provided at the bridge tower position and the positions on both sides adjacent to the positions without cable stays, and the specific number of reinforced cross beams 9 is designed according to the stress conditions of the cable stays of the cable-stayed bridge. Figure 4 In a preferred embodiment of the present invention, three reinforcing cross beams 9 are provided in the middle and on two adjacent sides of the tower bridge 5 for connecting the guide rail beams 7 .

[0038] The cable-stayed bridge of the present invention is suitable for rubber-tyred trams and municipal passages. Considering that the rubber-tyred trams have strict requirements on lateral and vertical stiffness, it is difficult to meet the stiffness requirements when only the guide rail beam is used as the main beam, and the structural stress is also difficult to meet. In order to reduce the beam height, the present invention uses the steel guide rail beam itself as the load-bearing structure, adopts a cable-stayed bridge structure, and uses the inclined cable as the vertical support, thereby reducing the calculated bending moment of the guide rail beam and overcoming the limitation of the cross-sectional size of the guide rail beam on the span.

[0039] Figure 5 In the top view of the rubber-tyred tram cable-stayed bridge, a number of common beams 14 are also provided between the guide rail beams 7, and the common beams are preferably made of steel structure to further strengthen the overall rigidity of the beam body. Common beams 14 are longitudinally arranged between reinforcing beams 9 and reinforcing beams 9, or between reinforcing beams 9 and anchoring beams 10, or between anchoring beams 10 and anchoring beams 10. Common beams 14 are denser than reinforcing beams 9 and anchoring beams 10; common beams 14 are arranged between guide rail beams 7, while reinforcing beams 9 and anchoring beams 10 pass through guide rail beams 7 and are fixedly connected thereto, and the width of reinforcing beams 9 and anchoring beams 10 is preferably consistent with the lateral width of the bridge deck. Further preferably, common beams 14 can be arranged at intervals of 3 to 5 meters as needed.

[0040] In a preferred embodiment, the positions of the stay cable anchor points 16 on each anchor beam 10 are consistent to ensure force and landscape requirements.

[0041] The cable-stayed bridge of the present invention, which is suitable for the construction of rubber-tyred trams and municipal passages, adopts reinforcing beams and anchoring beams to connect the track beams, so that the overall structural rigidity is large, and a plurality of more dense common beams are also arranged between the track beams, which can further increase the connection strength; the reinforcing beams, anchoring beams, common beams and guide rail beams are preferably made of steel structures, which have the advantages of light structure and fast construction speed.

[0042] Figure 6 The cross-sectional diagram of the anchor beam of a cable-stayed bridge suitable for co-construction of a rubber-tyred tram and a municipal passage according to an embodiment of the present invention is shown in FIG. Figure 3 , Figure 5 and Figure 6In order to solve the problem of the relatively soft rigidity of the guide rail beam itself, the present invention adopts a reinforcing beam and an anchoring beam to connect the two guide rail beams 7 to strengthen the overall rigidity of the bridge. A reinforcing beam 9 is set at the bridge tower position and the positions on both sides adjacent to the non-stayed cables. The cross section of the reinforcing beam 9 is consistent with the anchoring beam 10, and the reinforcing beam 9 at the bridge tower position is anchored on the bridge tower 5. Since the rubber-tyred tram track is generally narrow and has a small lateral rigidity, the bridge deck can be appropriately widened to allow pedestrians or other vehicles to pass through, and the lateral rigidity of the bridge can be increased. The present invention appropriately extends the lateral sides of the bridge by setting the reinforcing beam and the anchoring beam, and utilizes the extension of the lateral sides of the bridge to form a wider bridge deck to provide space for the municipal passage.

[0043] The municipal passage 15 can be used as at least a motor vehicle lane, a non-motor vehicle lane, a pedestrian passage or a landscape corridor according to actual needs.

[0044] The municipal passage 15 is arranged on both sides of the reinforcing beam 9 and the anchoring beam 10 in the horizontal direction; since a certain safety distance is required between the municipal passage and the train, the cable-stayed cable 11 and the tower 5 of the cable-stayed bridge can use this safety distance as the setting space, saving the width of the bridge deck, and the cable-stayed cable anchor point 16 is anchored on the anchoring beam 10. The municipal passage longitudinal beam 8 is arranged at the bottom of the municipal passage 15, and the municipal passage longitudinal beam 8 is arranged at the outer ends of the reinforcing beam 9 and the anchoring beam 10, and preferably adopts a steel structure as the supporting structure of the municipal passage 15. The vertical length of the municipal passage longitudinal beam 8 is shorter than that of the guide rail beam 7, and the vertical length of the municipal passage longitudinal beam 8 is less than the thickness of the two ends of the reinforcing beam 9 and the anchoring beam 10, and the vertical length of the guide rail beam 7 is greater than the thickness of the middle section of the reinforcing beam 9 and the anchoring beam 10, so that the bottom of the guide rail beam 7 is supported on the tower beam 6 through the support and the pad stone.

[0045] The cable-stayed bridge of the present invention is suitable for the construction of a rubber-tyred tram and a municipal channel. The guide rail beam is connected by a plurality of reinforcing beams and anchoring beams arranged at intervals in the longitudinal direction of the bridge, and the bottom is supported by a bridge tower beam arranged between the lower tower columns of the bridge tower. The guide rail beam itself is used as a load-bearing structure, avoiding the situation in the prior art that a guide rail beam supporting beam is additionally arranged on the top of the bridge pier, so that the overall structural height of the bridge is small. At the same time, the extension of the lateral sides of the bridge is utilized to form a wider bridge deck, which can provide a setting space for the municipal channel, thereby forming a cable-stayed bridge structure constructed by the rubber-tyred tram and the municipal channel.

[0046] The cable-stayed bridge of the present invention, which is suitable for the construction of rubber-tyred trams and municipal passages, uses anchoring and strengthening beams to extend outwards as a support system for the municipal passage, which can effectively utilize urban space; and the municipal passage longitudinal beams provided at the bottom of the municipal passage can not only increase the overall rigidity of the bridge, but also serve as auxiliary support for the municipal passage, which can greatly reduce the road surface structure height of the municipal passage; the bridge tower and the cable can be set using the safe distance between the municipal passage and the train, saving bridge deck space. In addition, the cable-stayed bridge of the present invention can adopt a single-tower, double-tower or three-tower cable-stayed bridge structure as required.

[0047] The present invention uses the guide rail beam itself as a load-bearing structure and uses the inclined cable as a support, with large spanning capacity, small structural height, good landscape, light structural weight, fast construction speed and low cost. The cross tie beam is used to connect to improve the overall rigidity of the bridge, meet the requirements of rubber-tyred trams, and the cross tie beam is used to expand outward to form a new municipal channel, saving urban space. It has good social and economic benefits.

[0048] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cable-stayed bridge suitable for rubber-tyred trams and municipal passages, characterized in that: It includes a bridge tower (5), a guide rail beam (7) and a municipal passage (15); wherein: The bridge towers (5) on both sides are located on the top of the bridge piers, a bridge tower cross beam (6) is provided between the lower tower columns of the bridge towers (5), and a corresponding guide rail beam (7) is longitudinally provided on the bridge tower cross beam (6) for supporting a rubber-tyred tram on a corresponding line; The cable-stayed bridge is provided with a plurality of cross beams at intervals along the bridge direction to connect the guide rail beams (7); the vertical length of the guide rail beams (7) is greater than the vertical length of the cross beams, and each of the cross beams passes through the guide rail beams (7) and is fixed thereto; The municipal passage (15) is provided in the space extending to both sides of the cross bridge of the cross beam, and the municipal passage (15) is arranged outside the inclined cable, forming a cable-stayed bridge structure co-built by the rubber-tyred tram and the municipal passage.

2. The cable-stayed bridge suitable for co-construction of rubber-tyred trams and municipal passages according to claim 1 is characterized in that: The cross beam comprises a reinforcing cross beam (9) and an anchoring cross beam (10); the anchoring cross beam (10) is provided with a stay cable anchoring point (16) for fixing the stay cable (11); the reinforcing cross beam (9) is arranged at the bridge tower (5) and at positions on both sides thereof where there is no stay cable.

3. The cable-stayed bridge suitable for co-construction of rubber-tyred trams and municipal passages according to claim 2 is characterized in that: The reinforcing cross beam (9) at the position of the bridge tower (5) is anchored on the bridge tower (5).

4. The cable-stayed bridge suitable for co-construction of rubber-tyred trams and municipal passages according to claim 2 is characterized in that: One end of the stay cable (11) is fixed to the stay cable anchor point (16), and the other end is fixed to the top of the bridge tower (5).

5. The cable-stayed bridge suitable for co-construction of rubber-tyred trams and municipal passages according to claim 2 is characterized in that: The cross sections of the reinforcing cross beam (9) and the anchoring cross beam (10) are consistent.

6. The cable-stayed bridge suitable for co-construction of rubber-tyred trams and municipal passages according to any one of claims 2 to 5, characterized in that: A plurality of common cross beams (14) are also arranged between the guide rail beams (7) in the transverse direction, and the common cross beams (14) are denser than the reinforcement cross beams (9) and the anchoring cross beams (10).

7. The cable-stayed bridge suitable for co-construction of rubber-tyred trams and municipal passages according to any one of claims 1 to 5, characterized in that: A support (12) and a cushion stone (13) are provided on the top surface of the bridge tower cross beam (6), and the bottom of the guide rail beam (7) is supported on the support (12) and the cushion stone (13).

8. The cable-stayed bridge suitable for co-construction of rubber-tyred trams and municipal passages according to any one of claims 2 to 5, characterized in that: A municipal passage longitudinal beam (8) is provided at the bottom of the municipal passage (15), and the municipal passage longitudinal beam (8) is arranged at the outer ends of the reinforcing cross beam (9) and the anchoring cross beam (10).

9. The cable-stayed bridge suitable for co-construction of rubber-tyred trams and municipal passages according to claim 8, characterized in that: The vertical length of the municipal channel longitudinal beam (8) is smaller than that of the guide rail beam (7), and the vertical length of the municipal channel longitudinal beam (8) is smaller than the thickness of the cross beam.

10. The cable-stayed bridge suitable for co-construction of rubber-tyred trams and municipal passages according to any one of claims 1-5 or 9, characterized in that: The municipal passage (15) can at least be used as a motor vehicle lane, a non-motor vehicle lane, a pedestrian lane or a landscape corridor according to actual needs.

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