Safety platform for walking cantilever beam of rear fulcrum hanging basket cross beam of ultra-wide and variable-width PC cable-stayed bridge

Abstract

The utility model discloses an ultra-wide and widening PC cable-stayed bridge rear fulcrum hanging basket cross beam walking cantilever beam safety platform which comprises a walkway system arranged at the bottom of a pi-shaped beam body, a plurality of sets of cantilever beams are arranged at the bottom of the walkway system, and the ends of the cantilever beams are used for being in butt joint with longitudinal and transverse beams of a hanging basket system. In the implementation process, the ends of the outrigger are in butt joint and fixed with the longitudinal and transverse beams (lower longitudinal beams) through the two sets of fixing plates and bolts; the longitudinal and transverse beams are I-shaped steel (H-shaped steel), and the two sets of fixing plates wrap the two side faces of the longitudinal and transverse beams. The utility model provides a rear fulcrum hanging basket cross beam walking outrigger safety platform of an ultra-wide and variable-width PC cable-stayed bridge. The cantilever platform is large in working face, convenient and flexible to install and capable of well adapting to construction of the pi-shaped beam; when the hanging basket walks, the rear anchor rod can be directly lowered to the cantilever platform and walks along with the hanging basket, the requirement for a tower crane is lower, and construction is more flexible.

Description

Technical Field

[0001] The utility model relates to the field of cable-stayed bridge construction, in particular to a safety platform for walking cantilever beams of a rear fulcrum hanging basket crossbeam of an ultra-wide variable-width PC cable-stayed bridge. Background Art

[0002] Currently in operation;

[0003] 1. At present, conventional hanging baskets are generally used for box beam casting and no rear platform is set. The fixing and removal of the rear anchor depends on the bottom platform of the rear lower beam. However, when casting π-shaped beams, the rear anchor point and the anchor position of the walking bracket are on the top plate, so this method is no longer applicable.

[0004] 2. When the hanging basket is moving, the rear anchor rod is usually placed on the bridge deck by lifting it up, which places great demands on the coverage range of the tower crane. Utility Model Content

[0005] Therefore, in order to solve the above-mentioned deficiencies, the utility model provides a safety platform for walking cantilever beams on the rear fulcrum hanging basket of an ultra-wide variable-width PC cable-stayed bridge; the cantilever platform has a large working surface and is convenient and flexible to install, and can well adapt to the construction of π-shaped beams; when the hanging basket is moving, the rear anchor rod can be directly lowered to the cantilever platform and move with the hanging basket, which reduces the demand for tower cranes and makes construction more flexible.

[0006] The utility model is implemented by constructing a safety platform for walking cantilever beams of a rear fulcrum hanging basket cross beam of an ultra-wide variable-width PC cable-stayed bridge, characterized in that it includes a walkway system (600) arranged at the bottom of a π-shaped beam body (100), a plurality of cantilever beams (700) are arranged at the bottom of the walkway system (600), and the ends of the cantilever beams (700) are used to dock with the longitudinal and transverse beams (301) of the hanging basket system (300).

[0007] According to the utility model, the rear support basket crossbeam walking cantilever beam safety platform of the ultra-wide variable-width PC cable-stayed bridge is characterized in that: the end of the cantilever beam (700) is fixed to the longitudinal and transverse beams (301) by two groups of fixing plates (302) through bolts; the longitudinal and transverse beams (301) are I-beams, and the two groups of fixing plates (302) are covered on both sides of the longitudinal and transverse beams (301).

[0008] The utility model has the advantages:

[0009] 1. The cantilever platform has a large working surface and is easy and flexible to install, which can well adapt to the construction of π-beams

[0010] 2. When the hanging basket is moving, the rear anchor rod can be directly lowered to the cantilever platform and move along with the hanging basket, which reduces the need for a tower crane and makes construction more flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1This is a schematic diagram of the cantilever beam platform for this application;

[0012] Figure 2 It is a schematic diagram of the connection between the cantilever beam and the longitudinal and transverse beams of the hanging basket system in this application;

[0013] Figure 3-Figure 4 Provided is an ultra-wide variable-width PC cable-stayed bridge π-shaped beam rear support hanging basket.

[0014] Among them: π-shaped beam body 100, hanging basket system 300, longitudinal and transverse beams 301, fixed plate 302, walking system 500, walkway system 600, cantilever beam 700. DETAILED DESCRIPTION

[0015] The following will be combined with the attached Figure 1-Figure 4 The utility model is described in detail, and the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] The utility model provides a super wide variable width PC cable-stayed bridge rear support basket cross beam walking cantilever beam safety platform, such as Figure 1-Figure 2 As shown; during implementation, a walkway system 600 is arranged at the bottom of the π-shaped beam body 100, and a plurality of cantilever beams 700 are arranged at the bottom of the walkway system 600. The ends of the cantilever beams 700 are used to dock with the longitudinal and transverse beams 301 of the hanging basket system 300.

[0017] When the present application is implemented, the ends of the cantilever beam 700 are fixed to the longitudinal and transverse beams 301 by bolts through two sets of fixing plates 302; the longitudinal and transverse beams 301 are I-beams, and the two sets of fixing plates 302 are covered on both sides of the longitudinal and transverse beams 301.

[0018] Figure 3-Figure 4 Provided is an ultra-wide variable width PC cable-stayed bridge π-shaped beam rear support hanging basket, such as Figure 3-Figure 4 As shown, the hanging basket includes a main truss system 200 and a bottom basket system 300. The bottom basket system 300 is arranged as a whole below the main truss system 200. The main truss system is connected to the above-mentioned bottom basket system and π-shaped beam through an anchoring system.

[0019] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A safety platform for walking cantilever beams of rear fulcrum hanging basket cross beams of ultra-wide variable width PC cable-stayed bridge, characterized in that; The invention comprises a walkway system (600) arranged at the bottom of a π-shaped beam body (100), a plurality of groups of cantilever beams (700) are arranged at the bottom of the walkway system (600), and the ends of the cantilever beams (700) are used to connect with the longitudinal and transverse beams (301) of the hanging basket system (300).

2. According to claim 1, the rear fulcrum hanging basket crossbeam walking cantilever beam safety platform for ultra-wide variable-width PC cable-stayed bridge is characterized in that; The ends of the cantilever beam (700) are fixed to the longitudinal and transverse beams (301) by bolts via two sets of fixing plates (302); the longitudinal and transverse beams (301) are I-beams, and the two sets of fixing plates (302) are wrapped around the two side surfaces of the longitudinal and transverse beams (301).

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