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A positioning device for diamond-shaped split-tube cable saddles for cable-stayed bridges with low towers

A low-tower cable-stayed bridge and positioning device technology, applied to cable-stayed bridges, bridge forms, bridges, etc., can solve the difficulty in controlling the displacement of the tower crane, the low installation accuracy of the split pipe, and the impact on the force of the subsequent cable-stayed bridge, etc. question

Active Publication Date: 2022-05-17
中铁一局集团(广州)建设工程有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned related technologies, the inventor believes that there are the following defects. It is difficult to control the displacement of the tower crane. Therefore, there is usually a certain deviation between the placement position of the wire splitting tube and the actual design installation position, resulting in the generally low installation accuracy of the splitting tube, which is easy to affect The force situation of the subsequent cable-stayed bridge, therefore, there is room for improvement

Method used

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  • A positioning device for diamond-shaped split-tube cable saddles for cable-stayed bridges with low towers
  • A positioning device for diamond-shaped split-tube cable saddles for cable-stayed bridges with low towers
  • A positioning device for diamond-shaped split-tube cable saddles for cable-stayed bridges with low towers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] refer to figure 1, a rhombic cable-stayed bridge saddle positioning device for a cable-stayed bridge with low towers, comprising a rigid frame 2 erected on the top of the cable tower 1, a branch tube 11 is erected inside the rigid frame 2, and the top of the rigid frame 2 is also provided with a Two sets of lifting components for adjusting the vertical position of the splitting tube 11, the lifting component is connected with the splitting tube 11; the rigid skeleton 2 is welded with three sets of adjusting rods 4 for adjusting the lateral position of the splitting tube 11, the adjusting rod 4. The end far away from the rigid frame 2 is in contact with the wire splitting tube 11; the rigid frame 2 is also welded with three sets of locking parts for limiting the movement of the splitting tube 11, and the three sets of snapping parts are located below the splitting tube 11. The clamping parts of the groups are evenly distributed along the extending direction of the thread...

Embodiment 2

[0045] refer to figure 2 and image 3 The difference between the second embodiment and the first embodiment is that a support rod 7 can be detachably connected between the adjacent vertical rods 21 on the same side, the support rod 7 is vertically arranged, and the top of the support rod 7 is fixedly connected with a The channel steel 71 of the connecting rod 31, the opening of the channel steel 71 is set up, and the channel steel 71 and the support 7 are T-shaped; the length direction of the channel steel 71 is perpendicular to the length direction of the support rod 7; the connecting rod 31 with welding is placed Being inside the channel steel 71, it is convenient for the construction personnel to directly weld the connecting rod 31, which is beneficial to reduce the situation that the construction personnel need to hold the connecting rod 31 while welding.

[0046] refer to image 3 and Figure 4 , the opposite sides of the support rod 7 are slidingly inserted with abut...

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Abstract

This application relates to the technical field of cable saddle positioning for short-tower cable-stayed bridges. Aiming at the problem that traditional wire splitting pipes cannot be accurately installed on the rigid frame, a diamond-shaped wire splitting pipe saddle positioning device for short-tower cable-stayed bridges is proposed, including The rigid frame erected on the top of the cable tower, the internal frame of the rigid frame is provided with a splitting tube, and the top of the rigid frame is provided with a lifting component for adjusting the vertical position of the splitting tube; the lifting component is connected with the splitting tube; the rigid frame is also provided with There is an adjusting rod for adjusting the lateral position of the wire splitting tube, and the end of the adjusting rod far away from the rigid framework is in contact with the splitting tube; the rigid frame is also welded with several clamping parts, and the splitting tube is clamped on the top of the clamping part. The present application has the effect of enabling more precise installation of the split tube to the rigid frame.

Description

technical field [0001] The present application relates to the technical field of cable saddle positioning for short-tower cable-stayed bridges, and in particular to a diamond-shaped wire splitting pipe saddle positioning device for short-tower cable-stayed bridges. Background technique [0002] The low-tower cable-stayed bridge combines the advantages of cable-stayed bridges and external prestressed box bridges, and is the usual choice for construction spans of about 100m-200m. The cable saddles of cable-stayed bridge towers with low towers usually use rhombic wire splitter tubes (hereinafter referred to as "wire splitter tubes"), which are usually welded from multiple steel pipes. The stay cable passes through the wire splitting tube, which is used to make a smooth transition to the stay cable and reduce the bending stress of the stay cable on the tower; it is also convenient for subsequent replacement of the stay cable. [0003] At present, before installing the split pip...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D19/14E01D19/16E01D11/04
CPCE01D19/14E01D19/16E01D11/04Y02W30/82
Inventor 吴特特吕永刚张君蒲军罗会军李洋
Owner 中铁一局集团(广州)建设工程有限公司