Pedestrian landscape river-crossing bridge structure

Abstract

The utility model relates to a pedestrian landscape river-crossing bridge structure, which comprises a bridge deck slab part, a bridge deck slab part and a bridge deck slab part, the bridge deck slab part comprises a plurality of round panels which are sequentially and tangentially spliced, and an outer flange of the bridge deck slab part is arranged in a curve shape; each circular panel comprises a plurality of sector plate units which can be prefabricated and spliced, and a special-shaped steel plate unit is arranged at the splicing position of every two adjacent circular panels; the bridge pier sleeve parts are arranged at the tops of the bridge piers, and the bridge pier sleeve parts are connected with the circular panels in a top sealing mode; the main beam part is used for supporting the bridge deck plate part and comprises a plurality of main supporting beams extending outwards in the radial direction from the bridge pier sleeve part. The utility model solves the problems of tedious assembly, difficult construction, longer construction period and the like caused by complex specifications of special-shaped bridge structural members, reduces the number of members with different specifications, is convenient to prefabricate, standardizes the prefabricated assembly members of the special-shaped landscape bridge, correspondingly reduces the sizes of anchor bolts and welding seams, and improves the construction efficiency. The purposes of simplifying component types, facilitating construction and assembly and shortening the construction period are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel structure bridges, in particular to a pedestrian landscape river crossing bridge structure. Background Art

[0002] Steel structure materials have high strength, good homogeneity, and are easy to process, so their components are light and easy to transport and erect, making them ideal construction materials for modern bridges. At the same time, steel structures are generally manufactured in factories and installed on construction sites, which can effectively shorten construction periods and reduce construction costs. Therefore, steel structures are widely used in various types of landscape bridges.

[0003] When designing conventional steel structure bridges, the sizes of components such as the main beam top plate, web plate, diaphragm and rib plate can be roughly divided into several categories to facilitate batch prefabrication in factories. However, in order to ensure beautiful appearance and light structure, pedestrian landscape bridges at this stage are mostly designed as special-shaped steel structure bridges. However, the sizes of special-shaped bridge structural components are mostly different, which makes it difficult to balance the standardization of structural components while ensuring beautiful appearance and landscape effects. It is difficult for factories to prefabricate in batches, which also leads to problems such as high project cost, difficult installation and long construction period during construction.

[0004] Therefore, the inventor, relying on his many years of experience and practice in related industries, proposes a pedestrian landscape river crossing bridge structure to overcome the defects of the prior art. Utility Model Content

[0005] The utility model aims to provide a pedestrian landscape river crossing bridge structure, which solves the problems of complicated assembly, difficult construction and long construction period caused by complex specifications of special-shaped bridge structure components, reduces the number of components of different specifications, and facilitates prefabrication. The prefabricated assembly components of standardized special-shaped landscape bridges are also reduced in size accordingly, thereby achieving the purpose of simplifying component types, facilitating construction and assembly, and shortening the construction period.

[0006] The purpose of the utility model is achieved in this way: a pedestrian landscape bridge structure across the river, comprising:

[0007] The bridge deck part comprises a plurality of circular panels which are sequentially tangently spliced, and the outer flange of the bridge deck part is arranged in a curve; each of the circular panels comprises a plurality of prefabricated and spliced ​​fan-shaped plate units, and a special-shaped steel plate unit is arranged at the splicing position of adjacent circular panels;

[0008] A pier casing portion is arranged on the top of each pier, and each of the pier casing portions is capped and connected to each of the circular panels;

[0009] The main beam portion for supporting the bridge deck portion includes a plurality of main support beams extending radially outward from the pier sleeve portion.

[0010] In a preferred embodiment of the present invention, the outer wall of each pier casing portion is connected to casing extension beams at intervals along the circumferential direction, and each casing extension beam is respectively connected to the first end of each main support beam.

[0011] In a preferred embodiment of the present invention, sleeve stiffening ribs are arranged at intervals along the circumferential direction on the inner wall of each pier sleeve portion.

[0012] In a preferred embodiment of the present invention, the main support beam includes a cantilever beam and a connecting main beam, the connecting main beam is arranged along the center connecting line of adjacent circular panels, and both ends are respectively connected to the sleeve extension beam; the cantilever beams are evenly spaced along the circumferential direction on both sides of the connecting main beam, the height of the cantilever beam is gradually reduced from the pier casing part outward, and the first end of each cantilever beam is connected to the pier casing part.

[0013] In a preferred embodiment of the present utility model, connecting steel plates are provided between the sleeve extension beam and the cantilever beam, and between the sleeve extension beam and the connecting main beam.

[0014] In a preferred embodiment of the present invention, a sealing channel steel is connected to the exposed edge of each circular panel.

[0015] In a preferred embodiment of the present invention, the joints between adjacent fan-shaped plate units and the joints between the fan-shaped plate units and the special-shaped steel plate units are respectively located at each of the main support beams.

[0016] In a preferred embodiment of the present invention, a panel reinforcing rib extending downward is disposed on the bottom surface of each circular panel.

[0017] In a preferred embodiment of the present invention, the bottom surface of each of the fan-shaped plate units and the bottom surface of the special-shaped steel plate unit are respectively provided with arc-shaped reinforcement ribs extending downward, and each of the arc-shaped reinforcement ribs is arranged along the circumferential direction to constitute the panel reinforcement rib; the two ends of each of the arc-shaped reinforcement ribs are respectively connected to the main support beam.

[0018] In a preferred embodiment of the present invention, the fan-shaped plate unit includes a 40° fan-shaped plate and a 45° fan-shaped steel plate, the central angles of the two ends of the special-shaped steel plate unit are 40° and 45° respectively, a plurality of the 40° fan-shaped plates and one end of the special-shaped steel plate unit at 40° form a 360° circular panel, and a plurality of the 45° fan-shaped steel plates and one end of the special-shaped steel plate unit at 45° form a 360° circular panel.

[0019] As described above, the pedestrian landscape river crossing bridge structure of the utility model has the following beneficial effects:

[0020] In the pedestrian landscape river crossing bridge structure of the utility model, the bridge deck portion is composed of a plurality of circular panels which are sequentially tangently spliced, and each circular panel is composed of standardized fan-shaped plate units and special-shaped steel plate units, thereby reducing the number of components of different specifications and facilitating prefabrication and prefabricated assembly components of standardized special-shaped landscape bridges, and the sizes of anchor bolts and welds are also reduced accordingly, thereby achieving the purpose of simplifying component types, facilitating construction and assembly, and shortening construction period. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The following drawings are only intended to illustrate and explain the present invention, and do not limit the scope of the present invention.

[0022] Figure 1 : It is an overall top view of the pedestrian landscape river crossing bridge structure of the present utility model.

[0023] Figure 2 : It is a partial top view of the utility model.

[0024] Figure 3 : It is a top view of the pier casing part of the utility model.

[0025] Figure 4 :for Figure 3 Middle AA section view.

[0026] Figure 5 : It is a schematic diagram of a 40° fan-shaped steel plate of the present invention.

[0027] Figure 6 :for Figure 5 Middle BB section view.

[0028] Figure 7 : It is a schematic diagram of a 45° fan-shaped steel plate of the utility model.

[0029] Figure 8 : It is a schematic diagram of the special-shaped steel plate unit of the utility model.

[0030] Fig. 9 : It is a schematic diagram of the cantilever beam of the utility model.

[0031] Fig.10 : It is a schematic diagram of the connecting main beam of the utility model.

[0032] Fig.11 : It is a schematic diagram of the connection between the sleeve extension beam and the main beam part of the utility model.

[0033] In the figure:

[0034] 1. Bridge deck;

[0035] 101. Large diameter circular panel; 102. Small diameter circular panel;

[0036] 11. 40° fan-shaped steel plate; 12. 45° fan-shaped steel plate; 13. Special-shaped steel plate unit; 14. Arc-shaped reinforcing rib; 15. Sealing channel steel;

[0037] 2. Pier casing;

[0038] 21. Casing extension beam; 22. Sleeve stiffening rib;

[0039] 31. Cantilever beam; 32. Connecting main beam; 33. Connecting steel plate; 34. Connecting bolts. DETAILED DESCRIPTION

[0040] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation methods of the utility model are now described with reference to the accompanying drawings.

[0041] The specific implementation of the utility model described herein is only used to explain the purpose of the utility model, and cannot be understood as a limitation of the utility model in any way. Under the guidance of the utility model, technicians can conceive of any possible deformation based on the utility model, which should be regarded as belonging to the scope of the utility model. It should be noted that when an element is referred to as "arranged on" another element, it can be directly on the other element or there can also be a central element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be a central element at the same time. The terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication of two elements, it can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation method.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0043] like Figures 1 to 11 As shown, the utility model provides a pedestrian landscape river crossing bridge structure, comprising:

[0044] The bridge deck part 1 comprises a plurality of circular panels which are sequentially tangently spliced, and the outer flange of the bridge deck part is arranged in a curve; each circular panel comprises a plurality of prefabricated and spliced ​​fan-shaped plate units, and a special-shaped steel plate unit is arranged at the splicing position of adjacent circular panels; the diameter and angle of the fan-shaped plate unit are determined according to actual construction requirements, and the circular panels are evenly divided according to the set angle to form a structural member of a standardized fan-shaped plate unit; the shape of the special-shaped steel plate unit is jointly determined by the diameter of the adjacent circular panels and the angle of the fan-shaped plate unit, so that two circular panels can be enclosed and formed separately;

[0045] A pier casing part 2 is arranged on the top of each pier, and each pier casing part 2 is capped and connected to each circular panel;

[0046] The main beam part for supporting the bridge deck part comprises a plurality of main support beams extending radially outward from the pier casing part 2. The length of the main support beam is determined by the diameter of the circular deck it supports.

[0047] Compared with general special-shaped steel structure bridges, the utility model better disassembles and designs complex structures into standardized components, determines the shape and specifications of the bridge deck steel plate by controlling the angle, size and other parameters of the structure, and forms fewer types of component sizes, making it more convenient to prefabricate components in the factory. It also simplifies the complexity of component assembly and connection during the construction of special-shaped steel structure bridges, and better solves the problems of complex specifications of special-shaped bridge structure components leading to cumbersome assembly, difficult construction and long construction period.

[0048] In the pedestrian landscape river crossing bridge structure of the utility model, the bridge deck portion is composed of a plurality of circular panels which are sequentially tangently spliced, and each circular panel is composed of standardized fan-shaped plate units and special-shaped steel plate units, thereby reducing the number of components of different specifications and facilitating prefabrication and prefabricated assembly components of standardized special-shaped landscape bridges, and the sizes of anchor bolts and welds are also reduced accordingly, thereby achieving the purpose of simplifying component types, facilitating construction and assembly, and shortening construction period.

[0049] Further, if Figure 2 , Figure 3 , Figure 4 As shown, the outer wall of each pier casing part 2 is connected with casing extension beams 21 at intervals along the circumferential direction, and each casing extension beam 21 is respectively connected to the first end of each main support beam. The casing extension beam 21 is an I-beam, and the casing extension beam 21 is welded to the pier casing part 2.

[0050] Further, if Figure 3 , Figure 4 As shown, sleeve stiffening ribs 22 are arranged at intervals along the circumferential direction on the inner wall of each pier casing part 2. The position of the sleeve stiffening ribs 22 is arranged circumferentially corresponding to the casing extension beam 21. The top of each pier casing part 2 is capped by welding the bridge deck part 1.

[0051] Further, if Figure 2 , Fig. 9 , Fig.10 As shown, the main support beam includes a cantilever beam 31 and a connecting main beam 32. The connecting main beam 32 is arranged along the center connecting line of adjacent circular panels, and both ends are respectively connected to the casing extension beam 21; cantilever beams 31 are evenly spaced along the circumferential direction on both sides of the connecting main beam 32, and the height of the cantilever beam 31 is gradually reduced from the pier casing part 2 to the outside, and the first end of each cantilever beam 31 is connected to the pier casing part 2.

[0052] The cross-sections of the sleeve extension beam 21, the cantilever beam 31 and the connecting main beam 32 are all in an I-shape (I-steel), respectively including an upper flange, a web and a lower flange, wherein the first end of the cantilever beam 31 is connected to the sleeve extension beam 21: the upper flange of the first end of the cantilever beam 31 extends outward by a certain length, and the lower flange of the first end of the cantilever beam 31 is correspondingly shortened inward by a certain length; the upper flange of the sleeve extension beam 21 is shortened inward by a certain length, and the lower flange of the sleeve extension beam 21 is correspondingly extended outward by a certain length; the outer overhanging end of the cantilever beam 31 that does not need to be connected to the connecting main beam 32, the upper flange and the lower flange are both flush with the web.

[0053] The connecting main beam 32 is connected to the sleeve extension beam 21: the upper flange of the connecting main beam 32 extends outward by a certain length, and the lower flange of the connecting main beam 32 is correspondingly shortened inward by a certain length; the upper flange of the sleeve extension beam 21 is shortened inward by a certain length, and the lower flange of the sleeve extension beam 21 is correspondingly extended outward by a certain length;

[0054] The arrangement structure of the flange and the web can ensure that the joint welds of the upper and lower flanges are not on the same section, thus preventing stress concentration.

[0055] Further, if Fig.11 As shown, connecting steel plates 33 are arranged between the sleeve extension beam 21 and the cantilever beam 31, and between the sleeve extension beam 21 and the connecting main beam 32. The connecting steel plates 33 are arranged on both sides of adjacent webs and connected by connecting bolts 34. The connecting steel plates 33 are rectangular steel plates.

[0056] Further, if Figure 2 , Figure 5 , Figure 6 , Figure 7 As shown, in order to improve the stability and safety of the structure, a sealing channel steel 15 is connected to the exposed edge of each circular panel.

[0057] Furthermore, the joints between adjacent sector plate units and the joints between the sector plate units and the special-shaped steel plate units 13 are respectively located at the main support beams.

[0058] Furthermore, in order to improve the stability and safety of the structure, a panel reinforcement rib extending downward is provided on the bottom surface of each circular panel.

[0059] Further, if Figure 2 , Figure 5 , Figure 6 , Figure 7 As shown, the bottom surface of each fan-shaped plate unit and the bottom surface of the special-shaped steel plate unit are respectively provided with arc-shaped reinforcing ribs 14 extending downward, and each arc-shaped reinforcing rib is arranged along the circumferential direction to form a panel reinforcing rib; the two ends of each arc-shaped reinforcing rib are respectively connected to the main support beam (web plate).

[0060] Example

[0061] like Figures 1 to 11 As shown, this landscape bridge is a pedestrian landscape bridge structure composed of five perfect circular bridge deck structures, and the outer flange is curved; the five perfect circular bridge decks include two diameter specifications (the large diameter circular panel is set as 101, and the small diameter circular panel is set as 102), and the two specifications are staggered;

[0062] In order to ensure the landscape effect, the center line of the landscape bridge is in a folded state in the plane view, so the fan-shaped plate units of the two different circular panels are designed as 40° fan-shaped steel plates 11 (such as Figure 5 As shown) and 45° sector steel plate 12 (as shown Figure 7 As shown), two sizes of fan-shaped steel plates and one size of special-shaped steel plate unit 13 are formed, such as Figure 8 As shown, the central angles of the two ends of the special-shaped steel plate unit are 40° and 45° respectively, and a plurality of 40° sector plates and one end of the special-shaped steel plate unit at 40° enclose a 360° circular panel, and a plurality of 45° sector plates and one end of the special-shaped steel plate unit at 45° enclose a 360° circular panel. Due to the different diameters of the sector plate units, the number and specifications of the arc-shaped reinforcing ribs below them are designed differently.

[0063] Due to the different fan-shaped angles, the pier casing portion 2 is designed to have two specifications with different numbers of casing cantilever beams 21 .

[0064] The main support beams are divided into three specifications (two cantilever beams 31 and one connecting main beam 32), which are connected to the sleeve extension beam 21 of the pier sleeve part 2 through anchor bolts and welds, and then steel plates of different sizes are butt-welded to the corresponding main beams to form the upper structure of the landscape bridge.

[0065] The construction process of the pedestrian landscape river crossing bridge structure of the utility model is as follows:

[0066] The pier casing part 2 is placed on the top of the pier and cast together. After the pier concrete reaches the required strength, the main support beams of various specifications are connected to the corresponding casing extension beams 21 on the pier casing part 2. The connecting steel plates 33 (rectangular steel plates) are fixed on both sides of the main support beams and the casing extension beams 21 with connecting bolts 34 (anchor bolts), and the connecting steel plates 33 (rectangular steel plates) are welded to the beam body.

[0067] The designated circular panels (fan-shaped plate units and special-shaped steel plate units) are placed on both sides of the upper flange of the main support beam and connected by butt welding (special-shaped steel plate units are used for the bridge deck at the overlapping position of the two circles). Finally, arc-shaped stiffening ribs are welded to the bottom of the circular panel, and the arc-shaped stiffening ribs are extended to both sides of the web of the main support beam and welded. Sealing channel steel is welded at the outer edge of the bridge deck part 1, and the bridge deck is paved.

[0068] As described above, the pedestrian landscape river crossing bridge structure of the utility model has the following beneficial effects:

[0069] In the pedestrian landscape river crossing bridge structure of the utility model, the bridge deck portion is composed of a plurality of circular panels which are sequentially tangently spliced, and each circular panel is composed of standardized fan-shaped plate units and special-shaped steel plate units, thereby reducing the number of components of different specifications and facilitating prefabrication and prefabricated assembly components of standardized special-shaped landscape bridges, and the sizes of anchor bolts and welds are also reduced accordingly, thereby achieving the purpose of simplifying component types, facilitating construction and assembly, and shortening construction period.

[0070] The above description is only an illustrative embodiment of the present invention and is not intended to limit the scope of the present invention. Any equivalent changes and modifications made by any person skilled in the art without departing from the concept and principle of the present invention shall fall within the scope of protection of the present invention.

Claims

1. A pedestrian landscape bridge structure across a river, characterized in that: include: The bridge deck part comprises a plurality of circular panels which are sequentially tangently spliced, and the outer flange of the bridge deck part is arranged in a curve; each of the circular panels comprises a plurality of prefabricated and spliced ​​fan-shaped plate units, and a special-shaped steel plate unit is arranged at the splicing position of adjacent circular panels; A pier casing portion is arranged on the top of each pier, and each of the pier casing portions is capped and connected to each of the circular panels; The main beam portion for supporting the bridge deck portion includes a plurality of main support beams extending radially outward from the pier sleeve portion.

2. The pedestrian landscape river crossing bridge structure as claimed in claim 1, characterized in that: The outer wall of each pier sleeve portion is connected to sleeve extension beams at intervals along the circumferential direction, and each sleeve extension beam is respectively connected to the first end of each main support beam.

3. The pedestrian landscape river crossing bridge structure as claimed in claim 2, characterized in that: Sleeve stiffening ribs are arranged at intervals along the circumferential direction on the inner wall of each pier sleeve portion.

4. The pedestrian landscape river crossing bridge structure as claimed in claim 2, characterized in that: The main support beam includes a cantilever beam and a connecting main beam. The connecting main beam is arranged along the center connecting line of adjacent circular panels, and both ends are respectively connected to the sleeve extension beam; the cantilever beams are evenly spaced along the circumferential direction on both sides of the connecting main beam, and the height of the cantilever beam is gradually reduced from the pier casing part outward, and the first end of each cantilever beam is connected to the pier casing part.

5. The pedestrian landscape river crossing bridge structure as claimed in claim 4, characterized in that: A connecting steel plate is arranged between the sleeve extension beam and the cantilever beam, and between the sleeve extension beam and the connecting main beam.

6. The pedestrian landscape river crossing bridge structure according to claim 1, characterized in that: The exposed edges of the circular panels are connected with sealing channel steels.

7. The pedestrian landscape river crossing bridge structure according to claim 1, characterized in that: The joints between adjacent fan-shaped plate units and the joints between the fan-shaped plate units and the special-shaped steel plate units are respectively located at each of the main support beams.

8. The pedestrian landscape river crossing bridge structure as claimed in claim 7, characterized in that: The bottom surface of each circular panel is provided with a panel reinforcing rib extending downward.

9. The pedestrian landscape river crossing bridge structure as claimed in claim 8, characterized in that: The bottom surface of each of the fan-shaped plate units and the bottom surface of the special-shaped steel plate unit are respectively provided with arc-shaped reinforcing ribs extending downward, and each of the arc-shaped reinforcing ribs is arranged along the circumferential direction to constitute the panel reinforcing ribs; the two ends of each of the arc-shaped reinforcing ribs are respectively connected to the main support beam.

10. The pedestrian landscape river crossing bridge structure according to claim 1, characterized in that: The fan-shaped plate unit includes a 40° fan-shaped plate and a 45° fan-shaped steel plate. The central angles of the two ends of the special-shaped steel plate unit are 40° and 45° respectively. A plurality of the 40° fan-shaped plates and one end of the special-shaped steel plate unit at 40° form a 360° circular panel. A plurality of the 45° fan-shaped steel plates and one end of the special-shaped steel plate unit at 45° form a 360° circular panel.

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