Anchoring and reinforcing structure for arch bridge suspender

Abstract

The utility model discloses an arch bridge suspender anchoring reinforcing structure, suspender bottom end is anchored on the arch bridge steel crossbeam through the one -to -one anchoring of anchor plate, and is fixed on the steel crossbeam through welding, and the left and right sides of anchor plate are symmetrically welded with stiffened plate subassembly, and the stiffened plate subassembly has the contact surface with steel crossbeam and welds, and the upper portion of anchor plate is equipped with anchoring gap, and the sleeve limiting component that suspender bottom end passes vertically is installed from top to bottom in the anchoring gap and the anchor pad that fixed and tension suspender bottom end anchorage device, the sleeve limiting component includes from top to bottom upper sleeve, connecting plate, lower sleeve, and the anchor pad is horizontally welded with lower sleeve bottom end, and the upper surface of anchor pad is equipped with the water drain groove, and the utility model has the advantages of strong structural stability, good anchoring effect etc.

Description

Technical Field

[0001] This utility model belongs to the field of suspension rod anchoring technology, specifically relating to a reinforcement structure for arch bridge suspension rod anchoring. Background Technology

[0002] For multi-span steel-concrete composite arch bridges, damage to the hangers poses the following hazards: 1) It can lead to load redistribution, increasing the stress on some hangers, accelerating the degree of damage, and creating a vicious cycle; 2) It can also reduce the overall stability of the bridge, which may lead to bridge deformation or even collapse under extreme loads; 3) It can change the vibration frequency and amplitude of the bridge, affecting traffic safety. Utility Model Content

[0003] The present invention aims to provide an arch bridge hanger anchoring reinforcement structure to enhance the structural strength of the arch foot hanger and solve the problem of bridge deformation caused by hanger damage due to low anchoring strength, which affects traffic safety.

[0004] Therefore, the technical solution adopted by this utility model is as follows: an arch bridge suspender anchoring reinforcement structure, wherein the bottom end of the suspender is anchored to the arch bridge steel crossbeam through corresponding anchor plates, the lower part of the anchor plate is provided with an installation notch for inserting into the web of the steel crossbeam, and is fixed to the steel crossbeam by welding, stiffening plate assemblies are symmetrically welded on the left and right sides and front and back of the anchor plate, the stiffening plate assemblies have a contact surface with the steel crossbeam and are welded, the upper part of the anchor plate is provided with an anchoring notch, and a sleeve limiting assembly for the bottom end of the suspender to pass vertically through and an anchor pad plate for fixing and tensioning the bottom end anchor of the suspender are installed from top to bottom in the anchoring notch, the sleeve limiting assembly includes an upper sleeve, a connecting plate and a lower sleeve from top to bottom, the anchor pad plate is horizontally welded to the bottom end of the lower sleeve, and a drainage groove is provided on the upper surface of the anchor pad plate.

[0005] As a preferred embodiment of the above solution, the stiffening plate assembly includes an upper stiffening plate and a lower stiffening plate to ensure the stability of the anchor plate and the steel beam installation. The top of the upper stiffening plate is welded to the bottom surface of the connecting plate, and the bottom is welded to the top surface of the steel beam top plate. The top of the lower stiffening plate is welded to the bottom surface of the steel beam top plate, and the bottom edge is chamfered. The welding is firm, and the chamfer avoids bumps.

[0006] A further preferred embodiment is that the drainage trough is a semi-circular arc-shaped trough with a diameter of 10mm to 12mm, which is reasonably designed and facilitates water diversion.

[0007] More preferably, the anchoring notch has an overall "convex" shape with an open top. The connecting plate has welding notches on the front and rear sides for inserting the anchor plate, thus fixing it to the narrow end of the anchoring notch. The wide end of the anchoring notch has semi-circular grooves at the front and rear. The structure is reasonably designed to avoid collision between the bottom anchor of the jack and the anchor plate. The semi-circular grooves can also help to hook and lift the jack during transportation.

[0008] A further preferred embodiment is that the top of the anchor plate is tapered inward to form a conical structure, and the top is symmetrically provided with lifting holes at the front and back. Widening cylinders are installed on the left and right sides of the lifting holes to facilitate handling, lifting and lowering. The anchor plate and the lower sleeve are welded by fillet welding, which ensures a firm weld.

[0009] The beneficial effects of this utility model are:

[0010] (1) Compared with the damage to the hanger due to low anchor strength, this application designs the anchor plate structure according to the strength requirements. It can be used on short hangers located at the arch foot or on long hangers. It is uniformly produced in batches and is suitable for hangers of any length, effectively reducing manufacturing costs. It ensures that the anchor plate and the steel beam are welded together in multiple positions, thereby ensuring the stable installation of the anchor plate and the steel beam. The upper surface of the anchor plate is provided with a drainage groove, thereby avoiding long-term water erosion of the weld and affecting the structural stability.

[0011] (2) The sleeve limiting assembly is used to ensure that the bottom anchor of the suspending rod passes through vertically and to ensure the verticality of the suspending rod. The anchor plate is welded to the bottom of the sleeve limiting assembly and is used to fix and tension the suspending rod anchor. The structure is interlocked and reasonably designed to strengthen the anchoring structure and ensure the anchoring effect.

[0012] In summary, this utility model has the advantages of strong structural stability and good anchoring effect. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the main structure of the anchor plate. Detailed Implementation

[0015] The present invention will be further described below with reference to embodiments and accompanying drawings:

[0016] Combination Figure 1 — Figure 2 As shown, an arch bridge hanger anchoring reinforcement structure consists of a pair of hangers arranged side by side at the arch foot of the arch bridge, forming a double hanger system.

[0017] The bottom end of the suspender rod is anchored to the steel crossbeam 1 of the arch bridge through corresponding anchor plates 3.

[0018] The lower part of the anchor plate 3 is provided with an installation notch 31 for inserting into the web of the steel crossbeam 1, and is fixed to the steel crossbeam 1 by welding.

[0019] An anchoring notch 32 is provided on the upper part of the anchor plate 3.

[0020] The anchoring notch 32 has a convex shape with an opening at the top.

[0021] The top of the wide end of the anchoring notch 32 is provided with semi-circular grooves 321 at the front and back.

[0022] An anchoring notch 32 is fitted with a sleeve limiting assembly 33 for the bottom end of the suspending rod to pass vertically through, and an anchor plate 34 for fixing and tensioning the bottom end anchor 21 of the suspending rod.

[0023] The connecting plate 34 has welding notches on both the front and rear sides for inserting into the anchor plate 3, thereby fixing it to the narrow end of the anchoring notch 32.

[0024] The sleeve limiting assembly 33 consists of an upper sleeve 331, a connecting plate 332, and a lower sleeve 333, arranged from top to bottom.

[0025] The anchor plate 34 is horizontally welded to the bottom end of the lower sleeve 333.

[0026] The anchor plate 34 and the lower sleeve 333 are preferably welded by fillet welding.

[0027] The upper surface of the anchor plate 34 is provided with a drainage groove 341, which is preferably a semi-circular arc groove with a diameter of 10mm to 12mm.

[0028] The anchor plate 3 has stiffening plate components 35 welded symmetrically on the left and right sides and front and back.

[0029] The stiffening plate assembly 35 has a contact surface with the steel crossbeam 1 and is welded.

[0030] The stiffening plate assembly 35 consists of an upper stiffening plate 351 and a lower stiffening plate 352.

[0031] The top of the stiffening plate 351 on the beam is welded to the bottom of the connecting plate 34, and the bottom is welded to the top of the top plate of the steel crossbeam 1.

[0032] The top of the stiffening plate 352 under the beam is welded to the bottom surface of the top plate of the steel crossbeam 1, and the bottom edge is chamfered.

[0033] The top of the anchor plate 3 is tapered inward to form a conical structure, and the top is symmetrically provided with lifting holes 36. Widening cylinders are installed on the left and right sides of the lifting holes 36.

[0034] First, the anchor plate 3 is processed in the factory. The sleeve limiting component 33 and the anchor plate 34 are welded to the designed position of the anchor plate 3. When the beam is constructed on site to the section with the hanger anchor, the two anchor plates 3 are hoisted to the corresponding position side by side so that the installation notch 31 is inserted into the web of the steel beam 1. Then, the stiffening plate component 35 and the top plate of the steel beam 1 are welded. Finally, corresponding to the two anchor plates 3, the bottom end of the hanger passes through the corresponding anchor plate 3, and the hanger tensioning end anchor is installed. The hanger tensioning is completed on the bridge deck using a light jack.

Claims

1. An arch bridge suspender anchoring reinforcement structure, wherein the bottom end of the suspender is anchored to the arch bridge steel crossbeam (1) by corresponding anchor plates (3), characterized in that: The lower part of the anchor plate (3) is provided with an installation notch (31) for inserting into the web of the steel beam (1) and is fixed to the steel beam (1) by welding. The anchor plate (3) is symmetrically welded with stiffening plate assemblies (35) on the left and right sides. The stiffening plate assembly (35) has a contact surface with the steel beam (1) and is welded. The upper part of the anchor plate (3) is provided with an anchoring notch (32). The anchoring notch (32) is provided with a sleeve limiting assembly (33) for the bottom end of the boom to pass vertically through and an anchor plate (34) for fixing and tensioning the bottom end anchor (21) of the boom. The sleeve limiting assembly (33) includes an upper sleeve (331), a connecting plate (332), and a lower sleeve (333) from top to bottom. The anchor plate (34) is horizontally welded to the lower end of the lower sleeve (333). The upper surface of the anchor plate (34) is provided with a drainage groove (341).

2. The arch bridge hanger anchorage reinforcement structure according to claim 1, characterized in that: The stiffening plate assembly (35) includes an upper stiffening plate (351) and a lower stiffening plate (352). The top end of the upper stiffening plate (351) is welded to the bottom surface of the connecting plate (332), and the bottom end is welded to the top surface of the top plate of the steel crossbeam (1). The top end of the lower stiffening plate (352) is welded to the bottom surface of the top plate of the steel crossbeam (1), and the outer edge of the bottom end is chamfered.

3. The arch bridge hanger anchorage reinforcement structure according to claim 1, characterized in that: The drainage trough (341) is a semi-circular arc-shaped trough with a diameter of 10mm to 12mm.

4. The arch bridge hanger anchorage reinforcement structure according to claim 1, characterized in that: The anchoring notch (32) is a convex structure with an open top. The connecting plate (332) has welding notches on the front and rear sides for inserting the anchor plate (3), thereby fixing it to the narrow end of the anchoring notch (32). The top of the wide end of the anchoring notch (32) has semi-circular grooves (321).

5. The arch bridge hanger anchorage reinforcement structure according to claim 1, characterized in that: The top of the anchor plate (3) is tapered inward to form a conical structure, and the top is symmetrically provided with lifting holes (36). Widening cylinders are installed on the left and right sides of the lifting holes (36). The anchor plate (34) and the lower sleeve (333) are welded by fillet welding.

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