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CN-122013651-A - Assembled tie bar arch steel structure bridge with interlocking function

CN122013651ACN 122013651 ACN122013651 ACN 122013651ACN-122013651-A

Abstract

The invention discloses an assembled tie bar arch steel structure bridge with an interlocking function, which belongs to the technical field of steel arch bridge devices and comprises bridge pile assemblies, bridge deck assemblies and steel frame arch ribs, wherein the steel frame arch ribs are fixed at the top ends of the bridge pile assemblies, the bridge deck assemblies are positioned between the bridge pile assemblies, through holes are formed in the side surfaces of the steel frame arch ribs, and anti-rolling limiting rods are inserted into the through holes. According to the invention, through the cooperation arrangement of the stress interlocking dispersing frame and the thrust interlocking rod, the stress interlocking dispersing frame is matched with the anti-rolling limiting rod, so that the thrust applied to the exposed bridge abutment by the deformation of the steel frame arch rib can be transferred to the stress interlocking dispersing frame, the thrust except for gravity applied to the exposed bridge abutment is weakened, when the tension applied to the two ends of the anti-rolling limiting rod is different, part of the thrust except for gravity applied to the exposed bridge abutment is counteracted by virtue of opposite tension, and the suspension cable interlocking assembly on the whole steel frame arch rib can form a complementary effect by virtue of the thrust interlocking rod.

Inventors

  • ZHANG XINGXIAO
  • ZHANG XINGJUN

Assignees

  • 安徽通拓钢结构有限公司

Dates

Publication Date
20260512
Application Date
20260120

Claims (8)

  1. 1. The assembled tie bar arch steel structure bridge with the interlocking function comprises bridge pile components, bridge deck components and steel frame arch ribs (1), and is characterized in that the steel frame arch ribs (1) are fixed at the top ends of the bridge pile components, the bridge deck components are located between the bridge pile components, through holes are formed in the side faces of the steel frame arch ribs (1), anti-rolling limiting rods (2) are inserted into the through holes, stress interlocking dispersing frames (3) are sleeved on the outer sides of the anti-rolling limiting rods (2), hollow cavities are formed in the anti-rolling limiting rods (2) located in odd numbers, hinged shaft rods (4) are fixed in the hollow cavities, side faces of the hinged shaft rods (4) are hinged with rolling limiting rods (5), and suspension cable interlocking components are arranged at two ends of the anti-rolling limiting rods (2) and take suspension cables as center and are of a central symmetrical structure; The suspension cable interlocking assembly comprises a suspension cable (6), suspension arm frames (7) are fixed at two ends of the suspension cable (6), inclined planes at two ends of each suspension arm frame (7) are attached to inclined planes of each extrusion chute (8), each extrusion chute (8) is arranged in the middle of each locking arm rod (9), cable clamping buckles (10) are fixed at the bottom ends of the corresponding locking arm rods (9), the inner walls of the cable clamping buckles (10) are tightly attached to the surface of the suspension cable (6), lifting assemblies are arranged at one ends of the corresponding locking arm rods (9), and thrust interlocking rods (11) are connected to the outer sides of the corresponding locking arm rods (9) at the lower symmetrical ends of the corresponding suspension cable interlocking assemblies through connecting assemblies.
  2. 2. An assembled tie bar arch steel bridge with interlocking function according to claim 1, characterized in that the bridge pile assembly comprises exposed bridge abutment (12) fixed at two ends of the steel frame arch rib (1), and foundation piles (13) are fixed at the bottom of the exposed bridge abutment (12).
  3. 3. An assembled tie bar arch steel bridge with interlocking function according to claim 2, characterized in that the deck assembly comprises a poured deck slab (14) attached to the side of the exposed bridge abutment (12), and a vibration damping assembly is arranged between two adjacent poured deck slabs (14).
  4. 4. An assembled tie bar arch steel bridge with interlocking function according to claim 3, characterized in that, the vibration damping assembly comprises a connecting groove (15) arranged at one end of a pouring bridge deck (14), a buffer spring (16) is fixed at the top and the bottom of the connecting groove (15), a butt joint clamping tongue (17) is fixed at the opposite ends of the upper buffer spring (16) and the lower buffer spring (16), and one end of the butt joint clamping tongue (17) is fixed on the surface of the adjacent pouring bridge deck (14).
  5. 5. The assembled tie bar arch steel structure bridge with the interlocking function according to claim 4, wherein an insertion hole (18) is formed in the side face of the pouring bridge deck (14), and a reinforcing rib column (19) is inserted into the insertion hole (18).
  6. 6. The assembled tie bar arch steel bridge with interlocking function according to claim 5, wherein the hoisting assembly comprises a hoisting tri-fork (20) hinged to one end of the locking arm (9) through a shaft, wherein the inner wall of the hoisting tri-fork (20) at the top is sleeved on the surface of the anti-rolling limiting rod (2), and the inner wall of the hoisting tri-fork (20) at the bottom is sleeved on the surface of the reinforcing rib column (19).
  7. 7. An assembled tied arch steel bridge with interlocking function according to claim 1, characterized in that said connection assembly comprises a shaft-receiving bracket (21) fixed to the outside of the locking arm (9), one end of said shaft-receiving bracket (21) being hinged to the inner wall of the thrust interlock lever (11) by means of a shaft.
  8. 8. The assembled tie-bar arch steel bridge with the interlocking function according to claim 1, wherein the anti-roll limiting rods (2) with hollow cavities are staggered with the anti-roll limiting rods (2) without hollow cavities.

Description

Assembled tie bar arch steel structure bridge with interlocking function Technical Field The invention relates to the technical field of steel arch bridge devices, in particular to an assembled tie bar arch steel structure bridge with an interlocking function. Background The interlocking principle of the tied arch bridge is that the arch bridge and the beam bridge are combined, and then the tied bars and the suspenders are matched to lock the arch bridge and the beam bridge together, and the self-balancing system is formed by interlocking the compressive pushing force of the arch rib and the tensile force of the tie beam. The connection points of the arch feet and the bridge piles of the existing tied arch bridge are mostly welded, the stress of the welding points is concentrated, the gravity of the arch ribs is borne, the thrust transmitted by the arch ribs is borne, the bridge piles are caused to bear stresses in different directions, the service life and the risk resistance of the bridge piles are negatively influenced to a certain extent, the expected service life and the actual service life of the arch bridge are greatly deviated, meanwhile, an effective stress interlocking effect cannot be formed between the arch ribs and the tie bars, and the stress at the joint points cannot be counteracted in time to form stress concentration points. Disclosure of Invention The invention aims to solve the problems that in the prior art, stress concentration of welding points of arch legs and bridge piles of a tied arch bridge causes larger deviation between the expected service life and the actual service life of the arch bridge and an effective stress interlocking effect cannot be formed between an arch rib and a tie bar, and provides an assembled tied arch steel structure bridge with an interlocking function. In order to achieve the above purpose, the present invention adopts the following technical scheme: The assembled tie bar arch steel structure bridge with the interlocking function comprises bridge pile components, bridge deck components and steel frame arch ribs, wherein the steel frame arch ribs are fixed at the top ends of the bridge pile components, the bridge deck components are positioned between the bridge pile components, through holes are formed in the side faces of the steel frame arch ribs, anti-rolling limiting rods are inserted into the through holes, stress interlocking dispersion frames are sleeved on the outer sides of the anti-rolling limiting rods, hollow cavities are formed in the anti-rolling limiting rods positioned at odd numbers, hinged shaft rods are fixed in the hollow cavities, rolling limiting rods are hinged to the side faces of the hinged shaft rods, suspension rope interlocking components are arranged at the two ends of the anti-rolling limiting rods, and the suspension rope interlocking components take suspension ropes as central symmetrical structures; The cantilever interlocking assembly comprises a cantilever, cantilever arms are fixed at two ends of the cantilever, inclined planes at two ends of the cantilever arms are attached to inclined planes of an extrusion chute, the extrusion chute is arranged in the middle of a locking arm rod, a cable clamping buckle is fixed at the bottom end of the locking arm rod, the inner wall of the cable clamping buckle is tightly attached to the surface of the cantilever, a hoisting assembly is arranged at one end of the locking arm rod, and a thrust interlocking rod is connected with the outer side of the locking arm rod at the lower symmetrical end of the cantilever interlocking assembly through a connecting assembly. Preferably, the bridge pile assembly comprises exposed bridge abutments fixed at two ends of the steel frame arch rib, and foundation piles are fixed at the bottoms of the exposed bridge abutments. Preferably, the bridge deck assembly comprises pouring bridge decks attached to the side faces of the exposed bridge decks, and a vibration reduction assembly is arranged between two adjacent pouring bridge decks. Preferably, the vibration reduction assembly comprises a connecting groove formed in one end of the pouring bridge deck, buffer springs are fixed at the top and the bottom of the connecting groove, butt joint clamping tongues are fixed at opposite ends of the upper buffer spring and the lower buffer spring, and one end of each butt joint clamping tongue is fixed on the surface of the adjacent pouring bridge deck. Preferably, an insertion hole is formed in the side face of the pouring bridge deck, and a reinforcing rib column is inserted into the insertion hole. Preferably, the hoisting assembly comprises a hoisting tri-fork frame hinged to one end of the locking arm rod through a shaft, wherein the inner wall of the hoisting tri-fork frame positioned at the top is sleeved on the surface of the anti-rolling limiting rod, and the inner wall of the hoisting tri-fork frame positioned at the bottom is sleeved on the surface o