CN216074709U - Space double-helix steel structure bridge - Google Patents

Abstract

A space double-spiral steel structure bridge belongs to the field of building bridges and comprises an upper structure, a beam portion structure and a lower structure, wherein the upper structure comprises a double-spiral arch and a stay cable, a main body of the double-spiral arch is of a double-spiral structure, the double-spiral arch is connected with the beam portion structure through the stay cable, the beam portion structure comprises a bridge and an auxiliary structure, the bridge is arranged on the lower structure, the auxiliary structure is arranged on the bridge, two ends of the double-spiral arch are fixedly connected to the bridge, the integral structure is attractive, and cantilevers are arranged on the sides of a main beam and can meet the requirements of sightseeing and trafficability; the cantilever is hoisted with the girder through the inhaul cable, so that the stress of the girder is uniform, and the stability of the bridge is improved.

Description

Space double-helix steel structure bridge

Technical Field

The utility model belongs to the field of building bridges, and particularly relates to a space double-spiral steel structure bridge.

Background

The origin of the bridge has a long history, the bridge is a building element which cannot be used in the construction of a modern city, and in the construction and planning of the modern city, a flyover is generally used in the city for traffic needs, and is a facility for crossing roads in an upward crossing manner and is generally arranged at a place where pedestrians, bicycles and other vehicles cross expressways and first-level roads, particularly a place where traffic flow conflicts are serious, such as a station, a large commercial center or other intersections.

An overpass (overpass) is a bridge that spans a traffic line such as a highway, a railway, or an urban road, and spans over an existing line. The overpass is divided into a separated type and an intercommunicated type. The separated type only ensures that vehicles on the upper and lower layer lines pass through independently; the intercommunicating type can lead vehicles on the upper and lower layers of lines to pass through each other, and build complex roundabout ramps on planes and vertical surfaces, thereby occupying a lot of land. In order to reduce noise, prestressed concrete bridges are often used. However, the existing overpass bridge usually has a plurality of problems, the small-sized overpass bridge usually has poor trafficability, pedestrians are difficult to avoid, and tourists can jam when staying for sightseeing, so that the demands of traffic and sightseeing cannot be met at the same time, and the manufacturing cost is greatly increased as soon as the bridge is widened.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provides a space double-spiral steel structure bridge.

In order to solve the technical problems, the utility model comprises an upper structure, a beam structure and a lower structure, wherein the upper structure comprises a double-spiral arch and a stay cable, the main body of the double-spiral arch is of a double-spiral structure, the double-spiral arch and the beam structure are connected through the stay cable, the beam structure comprises a bridge and an auxiliary structure, the bridge is arranged on the lower structure, the auxiliary structure is arranged on the bridge, and two ends of the double-spiral arch are fixedly connected to the bridge.

According to some embodiments of the utility model, the double spiral arch is composed of two spiral steel pipes, and two ends of each of the two steel pipes are provided with arch feet which are fixedly connected to the bridge.

According to some embodiments of the utility model, the bridge comprises a main beam and a cantilever, the main beam is formed by combining a plurality of steel box girders along a straight line, and a transverse plate is arranged between the two steel box girders.

Further, the cantilever is fixedly connected to the main beam.

Further, the arch springing is fixedly connected to the main beam.

According to some embodiments of the utility model, the stay cable includes a cable body, an arch end ear plate and a beam end ear plate, the arch end ear plate is disposed on the steel pipe, the beam end ear plate is disposed on the main beam and the cantilever, and two ends of the cable body are respectively connected to the arch end ear plate and the beam end ear plate.

Furthermore, stiffening plates are arranged beside the beam end ear plates, and stiffening plates are arranged between the steel pipes and the arch end ear plates.

According to some embodiments of the utility model, the substructure comprises a pile foundation, a lower deck, a steel-concrete pier and an upper deck, the pile foundation is arranged below ground, the lower deck is arranged on the pile foundation, the steel-concrete pier is vertically arranged on the lower deck, the upper deck is arranged on the steel-concrete pier, and the main beam is arranged on the upper deck.

Furthermore, a buffer block is arranged between the main beam and the upper bearing platform.

Further, the accessory structure comprises a rail and a step, wherein the rail is arranged on the surface of the main beam, and the step is arranged between the main beam and the bottom surface.

The utility model has the beneficial effects that:

compared with the prior art, the method has the advantages that,

the upper structure of the bridge adopts a double-spiral arch structure, so that the integral structure is attractive; the cantilever is arranged on the side of the main beam, so that the requirements of sightseeing and trafficability can be met simultaneously, and tourists can conveniently see and avoid pedestrians; the cantilever is hoisted through the stay cable, so that the stress of the girder is uniform, and the stability of the bridge is improved.

Drawings

The utility model is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural diagram of an overall structure of a preferred embodiment of the present invention;

FIG. 2 is a schematic view of the top view structure of the present invention;

FIG. 3 is a schematic side view of the corner structure of the present invention;

FIG. 4 is a schematic view of the structure of part A of the present invention;

FIG. 5 is a schematic view of the anchor point structure on the cable of the present invention;

FIG. 6 is a schematic view of another perspective of an anchor point on the cable of the present invention;

FIG. 7 is a diagram of the anchor point structure according to the present invention.

In the figure:

the upper structure is as follows:

11. double spiral arches; 111. a steel pipe; 112. an arch springing; 113. longitudinal reinforcing ribs;

14. a cable; 141. a cable body; 142. an arch end ear plate; 143. a beam-end ear panel; 144. a stiffening plate;

beam part structure:

21. a bridge; 211. a main beam; 212. a cantilever;

22. a railing; 23. a step;

the lower structure is as follows:

31. a pile foundation; 32. a lower bearing platform; 33. steel-concrete column piers; 34. an upper bearing platform; 35. and a buffer block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order to solve the technical problem, the double-spiral-arch-type combined bridge comprises an upper structure, a beam portion structure and a lower structure, wherein the upper structure comprises a double-spiral arch 11 and cables 14, a main body of the double-spiral arch 11 is of a double-spiral structure, the double-spiral arch 11 is connected with the beam portion structure through the cables 14, the beam portion structure comprises a bridge 21 and an auxiliary structure, the bridge 21 is arranged on the lower structure, the auxiliary structure is arranged on the bridge 21, and two ends of the double-spiral arch 11 are fixedly connected to the bridge 21.

In at least one embodiment, the double-spiral arch 11 is composed of two spiral steel pipes 111, two ends of each of the two steel pipes 111 are provided with arch feet 112, the arch feet 112 are fixedly connected to the bridge 21, the steel pipe 111 is a circular pipe with the diameter of 550 mm, the wall thickness is 20mm, and the wall thickness of the steel pipe 111 is increased to 25mm within two meters away from the arch feet 112.

Further, a longitudinal rib 113 is disposed on the inner wall of the steel pipe 111.

In at least one embodiment, the bridge beam 21 includes a main beam 211 and a cantilever 212, the main beam 211 is formed by combining a plurality of steel box girders along a straight line, a transverse plate is arranged between the two steel box girders, the main beam 211 is in the form of equal-height steel box girders, the span is 3x40m, the height of the girder is 1.6m, the thicknesses of a girder top plate, a girder bottom plate and a girder web are 16mm, and the thickness of one transverse plate is 1.5m and is 10 mm.

Further, the bridge cantilever 212 is fixedly attached to the main beam 211.

Further, the arch 112 is fixedly connected to the main beam 211 and the cable 14 is fixedly connected to the cantilever 212.

In at least one embodiment, the cable 14 includes a cable body 141, an arch end ear plate 142 and a beam end ear plate 143, the arch end ear plate 142 is disposed on the steel pipe 111, the beam end ear plate 143 is disposed on the main beam 211, two ends of the cable body 141 are respectively connected to the arch end ear plate 142 and the beam end ear plate 143, and the cable body 141, the beam end ear plate 143 and the arch end ear plate 142 are connected by a pin.

The arch end ear plate 142 and the beam end ear plate 143 are both in an elliptical plate shape and have a central opening structure.

Further, a stiffening plate 144 is arranged between the main beam 211 and the beam end ear plate 143, and a stiffening plate 144 is arranged between the steel pipe 111 and the arch end ear plate 142.

In at least one embodiment, the substructure includes a pile foundation 31, a lower deck 32, a steel concrete pier 33, and an upper deck 34, the pile foundation 31 is disposed below ground, the lower deck 32 is disposed on the pile foundation 31, the steel concrete pier 33 is vertically disposed on the lower deck 32, the upper deck 34 is disposed on the steel concrete pier 33, and the main beams 211 are disposed on the upper deck 34.

The steel-concrete pier 33 is a steel pipe 111 concrete pier with the diameter of 0.8cm, and the ladder 23 is also provided with a pier.

Further, a buffer block 35 is arranged between the main beam 211 and the upper bearing platform 34 and is made of plate rubber, and the buffer block 35 is made of standard specification series (JT/T663 and 2006) of plate rubber supports of highway bridges and meets the requirement of the standard for seismic fortification of the bridge.

Furthermore, a handrail 22 is arranged on the upper surface of the main beam 211, a step 23 is arranged between the main beam 211 and the ground, the width of the step is 3.5m, a cart ramp with the width of 0.4m is arranged in the middle of the step 23, the step size is 15 multiplied by 30cm, and the step platforms are all 1.5 m. The ladder way all sets up the stair of turning back, and the clear width of the department platform 3.0m of turning back, area can be practiced thrift in the formula design of turning back.

5cm of colored asphalt concrete is paved on the main beam 211 and the ladder 23.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (10)

1. The utility model provides a space double helix steel structure bridge, its characterized in that includes superstructure, roof beam portion structure and substructure, the superstructure includes double helix arch (11) and cable (14), double helix arch (11) main part is double helix structure, double helix arch (11) with roof beam portion structure passes through cable (14) are connected, roof beam portion structure includes bridge (21) and additional structure, bridge (21) set up on the substructure, additional structure sets up on bridge (21), the both ends fixed connection that double helix arch (11) is in on bridge (21).

2. The spatial double-spiral steel structure bridge according to claim 1, wherein the double-spiral arch (11) is composed of two spiral steel pipes (111), two ends of each of the two steel pipes (111) are provided with arch feet (112), and the arch feet (112) are fixedly connected to the bridge (21).

3. The spatial double-spiral steel structure bridge according to claim 2, wherein the bridge (21) comprises a main beam (211) and a cantilever (212), the main beam (211) is formed by combining a plurality of steel box girders along a straight line, and a transverse plate is arranged between the two steel box girders.

4. The spatial double-spiral steel structure bridge according to claim 3, wherein the cantilever (212) is fixedly connected to the main beam (211).

5. The spatial double-spiral steel structure bridge according to claim 4, wherein the arch feet (112) are fixedly connected to the main beam (211).

6. The spatial double-spiral steel structure bridge according to claim 4, wherein the stay cable (14) comprises a cable body (141), an arch end ear plate (142) and a beam end ear plate (143), the arch end ear plate (142) is arranged on the steel pipe (111), the beam end ear plate (143) is arranged on the main beam (211) and the cantilever (212), and two ends of the cable body (141) are respectively connected with the arch end ear plate (142) and the beam end ear plate (143).

7. The spatial double-spiral steel structure bridge according to claim 6, wherein stiffening plates (144) are arranged beside the beam end ear plates (143), and stiffening plates (144) are arranged between the steel pipes (111) and the arch end ear plates (142).

8. The spatial double-spiral steel structure bridge according to claim 3, wherein the lower structure comprises a pile foundation (31), a lower bearing platform (32), a steel-concrete column pier (33) and an upper bearing platform (34), the pile foundation (31) is arranged under the ground, the lower bearing platform (32) is arranged on the pile foundation (31), the steel-concrete column pier (33) is vertically arranged on the lower bearing platform (32), the upper bearing platform (34) is arranged on the steel-concrete column pier (33), and the main beam (211) is arranged on the upper bearing platform (34).

9. The spatial double-spiral steel structure bridge according to claim 8, wherein a buffer block (35) is arranged between the main beam (211) and the upper bearing platform (34).

10. The spatial double-spiral steel structure bridge according to claim 3, wherein the auxiliary structure comprises a railing (22) and a step (23), the railing (22) is arranged on the surface of the main beam (211), and the step (23) is arranged between the main beam (211) and the bottom surface.

Images