Search

CN-122013652-A - Netted suspender cable bridge

CN122013652ACN 122013652 ACN122013652 ACN 122013652ACN-122013652-A

Abstract

The embodiment of the invention provides a mesh boom cable bridge, which relates to the technical field of bridges, and comprises two bridge towers, main beams, a plurality of stay cables, two main cables and two groups of boom components, wherein the two bridge towers are arranged at intervals along the longitudinal bridge direction, the main beams extend along the longitudinal bridge direction and pass through the two bridge towers, the plurality of stay cables are symmetrically distributed on two sides of each bridge tower body, the plurality of stay cables on each side extend towards two sides respectively and are connected with the bridge towers at the upper end, the lower end is connected with the main beams, the two main cables are respectively positioned on two sides of the main beams and are respectively arranged above the main beams along the longitudinal bridge direction, the main cables pass through the top of each bridge tower and are respectively fixed on two sides of the main beams, each group of boom components is provided with a plurality of booms obliquely arranged along the longitudinal bridge direction, one end of each boom is connected with the main cable, and the other end of each boom is connected with the main beams. In the embodiment, the suspender, the main beam and the main cable form triangular force transmission, so that the overall stability and safety of the bridge are improved.

Inventors

  • Yuan Renan
  • HE WENTAO
  • CHEN YU
  • ZHENG QINGGANG
  • LI SHAOPENG
  • CHEN LEI
  • ZHANG HAOQING
  • ZHENG YAPENG
  • Chen Zoujie

Assignees

  • 中铁大桥勘测设计院集团有限公司

Dates

Publication Date
20260512
Application Date
20260331

Claims (10)

  1. 1. A mesh boom cable bridge comprising: the two bridge towers (1) are arranged at intervals along the longitudinal bridge direction; -a main girder (2), said main girder (2) extending in a longitudinal bridge direction and passing through two of said pylons (1); The stay cables (3) are symmetrically distributed on two sides of a tower body of each bridge tower (1), the stay cables (3) on each side symmetrically extend to two sides respectively, the upper end of each stay cable (3) is connected with the corresponding bridge tower (1), and the lower end of each stay cable is connected with the main beam (2); the two main cables (4) are respectively positioned at two sides of the main beam (2) and are respectively arranged above the main beam (2) along the longitudinal bridge direction, and the main cables (4) penetrate through the top of each bridge tower (1) and are respectively fixed at two sides; Two sets of jib subassembly (5), two sets of jib subassembly (5) are located respectively the both sides of girder (2), every set of jib subassembly (5) include a plurality of jib (51) that set up along the slope of longitudinal bridge direction, every one end of jib (51) with main cable (4) are connected, the other end with girder (2) are connected.
  2. 2. The mesh boom cable bridge of claim 1, wherein: The adjacent suspenders (51) are connected through end parts, the suspenders (51) at the odd positions have the same first inclination angle, the suspenders (51) at the even positions have the same second inclination angle, and the first inclination angle is not equal to the second inclination angle.
  3. 3. The mesh boom cable bridge of claim 1, wherein: The included angle between the projection of each suspender (51) in the vertical plane and the main beam (2) is not smaller than sixty degrees.
  4. 4. The mesh boom cable bridge of claim 1, wherein: at least part of the boom (51) is arranged spatially crosswise to at least part of the stay cable (3).
  5. 5. The mesh boom cable bridge of claim 4, wherein: the number of intersections of the suspenders (51) and the stay cables (3) is not less than eight pairs.
  6. 6. The mesh boom cable bridge of claim 1, further comprising: four side piers (6), four side piers (6) are respectively arranged below two ends of the longitudinal bridge direction of the girder (2) and are used for directly supporting the end parts of the girder (2).
  7. 7. The mesh boom cable bridge of claim 6, further comprising: And the four dampers (7) are arranged at one ends, close to the main beam (2), of the four side piers (6).
  8. 8. The mesh boom cable bridge of claim 1, further comprising: the auxiliary piers (8) are respectively arranged at two ends of the bridge, and the auxiliary piers (8) are used for directly supporting the main beams (2).
  9. 9. The mesh boom cable bridge of claim 1, further comprising: the plurality of locking clamps (9) are divided into two groups of clamping and fixed on the corresponding main cable (4) and are used for connecting one ends of two adjacent suspenders (51).
  10. 10. A net-boom cable bridge as claimed in claim 1, wherein each of said booms (51) is of a parallel wire-bundle construction.

Description

Netted suspender cable bridge Technical Field The invention relates to the technical field of bridges, in particular to a net-shaped suspender cable bridge. Background With the rapid development of bridge construction industry in China, a large-span cable bearing bridge has become an important structural form for crossing natural obstacles such as rivers, canyons and the like. In order to meet the requirements of large span and structural rigidity at the same time, a cable-stayed and suspension cable cooperative system bridge is generated, namely, stay cables are arranged in a region close to a bridge tower to provide enough structural rigidity, and the middle section of a main span is converted into a suspension system, so that the main cable is utilized to realize oversized span. However, under the condition of large span, when the existing cable-stayed and suspension cable cooperative system bridge bears the load of a longitudinal bridge, the constraint effect on the main girder in the longitudinal bridge direction, namely along the longitudinal direction of the bridge is weak, the main girder is easy to generate larger longitudinal displacement under the action of longitudinal bridge forces such as vehicle braking, wind load and the like, and the overall stability is not high. Disclosure of Invention The embodiment of the invention provides a net-shaped suspender cable bridge, which aims to solve the technical problems that a main beam of a large-span cable-stayed-suspension cooperative system bridge in the related art is excessively displaced under the longitudinal bridge load and the structural stability is low. The embodiment of the invention provides a mesh boom cable bridge, which comprises: the two bridge towers are arranged at intervals along the longitudinal bridge direction; The main beams extend along the longitudinal bridge direction and pass through the two bridge towers; the stay cables are symmetrically distributed on two sides of the tower body of each bridge tower, the stay cables on each side extend to two sides symmetrically, the upper end of each stay cable is connected with the corresponding bridge tower, and the lower end of each stay cable is connected with the main beam; The two main cables are respectively positioned at two sides of the main beam and are respectively arranged above the main beam along the longitudinal bridge direction, and the main cables penetrate through the top of each bridge tower and are respectively fixed at two sides; the two groups of boom components are respectively positioned at two sides of the main beam, each group of boom components comprises a plurality of booms which are obliquely arranged along the longitudinal bridge direction, one end of each boom is connected with the main cable, and the other end of each boom is connected with the main beam. In some embodiments, adjacent suspenders are connected through end parts, the suspenders in odd positions have the same first inclination angle, the suspenders in even positions have the same second inclination angle, and the first inclination angle is not equal to the second inclination angle. In some embodiments, the angle between the projection of each boom in the vertical plane and the main beam is no less than sixty degrees. In some embodiments, at least a portion of the boom is spatially interleaved with at least a portion of the stay cable. In some embodiments, the number of crossings of the boom with the stay cable is not less than eight pairs. In some embodiments, the girder further comprises four side piers, wherein the four side piers are respectively arranged below two ends of the girder in the longitudinal bridge direction and are used for directly supporting the ends of the girder. In some embodiments, the side piers further comprise four dampers, and the dampers are arranged at one ends of the four side piers, which are close to the main beam. In some embodiments, the bridge further comprises a plurality of auxiliary piers, wherein the plurality of auxiliary piers are respectively arranged at two ends of the bridge in two groups, and the plurality of auxiliary piers are used for directly supporting the main girder. In some embodiments, the hanger rod further comprises a plurality of locking clips, wherein the plurality of locking clips are divided into two groups and are clamped and fixed on the corresponding main cable, and the locking clips are used for connecting one ends of two adjacent hanger rods. In some embodiments, each of the booms is a parallel wire bundle structure. The technical scheme provided by the invention has the beneficial effects that: The embodiment of the invention provides a mesh boom cable bridge, which comprises two bridge towers, main beams, a plurality of stay cables, two main cables and two groups of boom components, wherein the two bridge towers are arranged at intervals along the longitudinal bridge direction, the main beams extend along the longitudinal bridge