CN217839751U

CN217839751U - Device for increasing torsion of rotating bridge support

Info

Publication number: CN217839751U
Application number: CN202220328053.6U
Authority: CN
Inventors: 郑鹏程; 安志刚; 韩静; 曹继喜; 殷建强
Original assignee: China Railway Sixth Group Co Ltd; Beijing Railway Construction Co of China Railway Sixth Group Co Ltd
Current assignee: China Railway Sixth Group Co Ltd; Beijing Railway Construction Co of China Railway Sixth Group Co Ltd
Priority date: 2022-02-18
Filing date: 2022-02-18
Publication date: 2022-11-18
Anticipated expiration: 2032-02-18

Abstract

A device for increasing the torsion of a rotating bridge support. The torsion bar comprises a torsion block and a plurality of reinforcing rings; the central hole on the reinforcing ring has the same outline and size as the periphery of a nut on a bolt for fixing the bottom steel plate of the support, and a reinforcing ring is sleeved outside each nut; the torsion block is a cast iron block, a plurality of round through holes corresponding to a plurality of bolts at the right angle of the support bottom steel plate are formed in the middle of the torsion block along the vertical direction, the bottom of the torsion block is placed on the top surface at the right angle of the support bottom steel plate, and the top of the torsion block is clamped on the bottom surface at the right angle of the support top steel plate by utilizing a steel plate; the lower part of each through hole is sleeved outside one reinforcing ring. The utility model provides an increase device of turning bridge beam supports torsion increases the torsion of support from this through setting up the torsion piece to the support four corners, consequently can realize turning the safe transmission of in-process torsion. The device is simple and quick to operate, has a good effect, and does not need to additionally perform temporary consolidation between the pier and the beam body.

Description

Device for increasing torsion of rotating bridge support

Technical Field

The utility model belongs to the technical field of bridge construction auxiliary assembly, especially, relate to an increase device of bridge beam supports torsion of turning.

Background

With the rapid development of municipal construction in China, bridge projects crossing important roads or railways are increasingly increased, and in order to reduce the influence on a crossed structure, swivel construction is widely adopted due to the fact that the construction speed is high and the influence on the crossed structure is small. In the design of a large-span bridge for swivel construction, a manner of arranging a swivel system below a main pier is mostly adopted, a torsion force is applied to the swivel system to drive the pier to rotate, and then the upper beam body is driven by the pier to rotate together. When the beam body and the bridge pier are not easy to be temporarily solidified, the support between the beam body and the bridge pier not only needs to bear unbalanced bending moment of the beam body, but also needs to bear torsion transmitted to the beam body by the bridge pier, so that the support is very easy to damage.

Disclosure of Invention

In order to solve the problem, the utility model aims to provide a simple structure, convenient operation can enough provide sufficient torsion for turning bridge beam supports, again can easy dismounting's device.

In order to achieve the purpose, the device for increasing the torsion of the swivel bridge bearing provided by the utility model comprises a torsion block and a plurality of reinforcing rings; the central hole on the reinforcing ring is identical to the peripheral outline and size of a nut on a bolt for fixing a bottom steel plate of the support, and a reinforcing ring is sleeved outside each nut; the torsion block is a cast iron block, a plurality of round through holes corresponding to a plurality of bolts at the right angle of the support bottom steel plate are formed in the middle of the torsion block along the vertical direction, the bottom of the torsion block is placed on the top surface at the right angle of the support bottom steel plate, and the top of the torsion block is clamped on the bottom surface at the right angle of the support top steel plate by utilizing a steel plate; the lower part of each through hole is sleeved outside one reinforcing ring.

The outer diameter of the reinforcing ring is equal to the diameter of the through hole in the torsion block, and the diameter of the through hole is 8cm.

The torsion block is an L-shaped cast iron block, and the height of the torsion block is equal to the distance between the top surface of the bottom steel plate of the support and the bottom surface of the beam body minus 2cm after the height of the reinforcing ring is subtracted.

The utility model provides an increase device of turning bridge beam supports torsion increases the torsion of support from this through setting up the torsion piece to the support four corners, consequently can realize turning the safe transmission of in-process torsion. The device is simple and quick to operate, has a good effect, and does not need to additionally perform temporary consolidation between the pier and the beam body.

Drawings

Fig. 1 is a perspective view of the device for increasing torsion of a bridge support of a swivel.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Now, a certain bridge engineering is taken as an example for explanation: the bridge is a municipal double-rotator steel truss bridge, the bridge span is respectively (119 + 138) m and (119 + 130) m, the rotator weight is 15000t and 14500t, the maximum traction force required at the moment of starting is 318t, the rotator system is arranged between an upper bearing platform and a lower bearing platform, and temporary consolidation between a concrete pier and the steel girder is not suitable. This engineering chooses for use the utility model provides an increase bridge beam supports torsion's of turning device through the torsion that increases the support, has accomplished the construction of turning safely smoothly under the condition of not consolidating temporarily between the pier and the roof beam body.

As shown in fig. 1, the device for increasing the torsion of a rotating bridge support provided by the present invention comprises a torsion block 1 and a plurality of reinforcing rings 3; the central hole on the reinforcing ring 3 has the same outline and size with the periphery of a nut on a bolt for fixing a support base steel plate, and the outside of each nut is sleeved with one reinforcing ring 3; the torsion block 1 is a cast iron block, a plurality of round through holes 2 corresponding to a plurality of bolts at the right angle of the steel plate at the bottom of the support are formed in the middle of the torsion block along the vertical direction, the bottom of the torsion block is placed on the top surface at the right angle of the steel plate at the bottom of the support, and the top of the torsion block is clamped on the bottom surface at the right angle of the steel plate at the top of the support by utilizing a steel plate; the lower part of each through hole 2 is sleeved outside one reinforcing ring 3.

The outer diameter of the reinforcing ring 3 is equal to the diameter of the through hole 2 in the torsion block 1, and the diameter of the through hole 2 is 8cm.

The torsion block 1 is an L-shaped cast iron block, and the height of the torsion block is equal to the distance between the top surface of the bottom steel plate of the support and the bottom surface of the beam body minus 2cm after the height of the reinforcing ring 3 is subtracted.

Will now the utility model provides an increase bridge beam supports's of turning device's application method explains as follows:

in practical application, the device is arranged at each of four right-angle positions of each support and is installed along with the supports. During installation, firstly, a constructor sleeves a reinforcing ring 3 outside a nut on each bolt for fixing the bottom steel plate of the support, then sleeves the lower part of each through hole 2 on the torsion block 1 outside the reinforcing ring 3 to fix the bolt on the bottom steel plate of the support, and then clamps the steel plate with proper thickness between the top of the torsion block 1 and the bottom surface of the right-angle part of the top steel plate of the support. Then turn, at the in-process of turning, torsion will be from pier and base plate of the stone transmission to support, by the steel plate at the bottom of the support through torsion piece 1 transmission to support top plate, and then transmit to the roof beam body to torsion safety transmission provides the guarantee during for turning. After the rotation is finished, the steel plate is firstly dismantled, then the torsion block 1 is lifted and moved out of the range of the support by using the guide chain, and then the reinforcing ring 3 is dismantled, so that the whole operation is finished.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an increase device of bridge beam supports torsion of turning which characterized in that: the device for increasing the torsion of the swivel bridge support comprises a torsion block (1) and a plurality of reinforcing rings (3); the central hole on the reinforcing ring (3) is identical to the peripheral outline and size of a nut on a bolt for fixing a base steel plate of the support, and the reinforcing ring (3) is sleeved outside each nut; the torsion block (1) is a cast iron block, a plurality of round through holes (2) corresponding to a plurality of bolts at the right angle of the steel plate at the bottom of the support are formed in the middle of the torsion block along the vertical direction, the bottom of the torsion block is placed on the top surface at the right angle of the steel plate at the bottom of the support, and the top of the torsion block is clamped on the bottom surface at the right angle of the steel plate at the top of the support by using a steel plate; the lower part of each through hole (2) is sleeved outside one reinforcing ring (3).

2. The device for increasing the torque of a swivel bridge support according to claim 1, wherein: the outer diameter of the reinforcing ring (3) is equal to the diameter of the through hole (2) in the torsion block (1), and the diameter of the through hole (2) is 8cm.

3. The device for increasing the torque of a swivel bridge support according to claim 1, wherein: the torsion block (1) is an L-shaped cast iron block, and the height of the torsion block is equal to the distance between the top surface of the bottom steel plate of the support and the bottom surface of the beam body minus 2cm after the height of the reinforcing ring (3) is subtracted.