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Self-anchored rope-suspension bridge inclined drawing construction method

A self-anchored suspension bridge and construction method technology, applied in the direction of suspension bridges, bridges, bridge forms, etc., can solve the problems of bracket impact, high cost of brackets in water, brackets affecting navigation and flood discharge, etc.

Active Publication Date: 2009-04-29
SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (1) The support affects navigation and flood discharge;
[0006] (2) There is a risk of the bracket being hit by passing ships;
[0007] (3) The cost of temporary facilities for supports in water is relatively high

Method used

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  • Self-anchored rope-suspension bridge inclined drawing construction method
  • Self-anchored rope-suspension bridge inclined drawing construction method
  • Self-anchored rope-suspension bridge inclined drawing construction method

Examples

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Embodiment Construction

[0025] The construction schematic diagram of the present invention is shown in the figure. figure 1 For step A, use the permanent bridge tower of the self-anchored suspension bridge to carry out the foundation construction of the main tower 1 and the side pier 2, and make the main beam segment 4. image 3 with Figure 4 For step B, use the beam hoist to transport and lift the main beam section 4, adopt the method of tensioning the temporary stay cable 3, use the cable-staying method to assemble the main beam section 4 with symmetrical cantilever beams, and move from the main tower 1 to both sides one by one Assemble forward; Figure 5 with Image 6 In step C, the side spans are closed, that is, after assembling the main girder section 4 to the side pier 2, the main girder section 4 is assembled using a cable-stayed single cantilever until the middle span is closed, and finally the main girder 7 of the cable-stayed bridge is formed; Figure 7 ~ Figure 12 is step D, cable sys...

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Abstract

The invention discloses a method for the cable-stayed construction of a self-anchoring type suspension bridge. The method is characterized by utilizing a permanent bridge tower of the self-anchoring type suspension bridge; a temporary stayed cable is stretched; suspending arms are spliced to form a girder section; after a cable-stayed bridge is folded, a main cable and a sling are mounted; and the self-anchoring type suspension bridge is formed through system conversion. In deep water, tidal bore or a navigation water area, the self-anchoring type suspension bridge adopting the cable-stayed construction method has the following advantages: (1) navigation and flood discharging are not influenced; (2) collision risk of ships is small; (3) the construction is rapid; and (4) temporary facility has low expense.

Description

technical field [0001] The invention relates to the field of bridge construction, in particular to a cable-stayed construction method of a self-anchored suspension bridge. Background technique [0002] The self-anchored suspension bridge does not have anchors, but relies on the main girder to balance the tension of the main cable. This structural system determines that the self-anchored suspension bridge must adopt the construction sequence of girder first and then cable, that is, the main girder is erected first, and after the main girder is supported on several temporary support points to form a continuous structure, the main cable and sling are installed. System transformation forms a self-anchored suspension bridge. [0003] At present, the self-anchored suspension bridges that have been built or are under construction at home and abroad all adopt the construction method with supports for the erection of the main girder, including the method of full support and the meth...

Claims

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Application Information

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IPC IPC(8): E01D21/00E01D11/02
Inventor 郝维索张剑英戴建国沈洋吴东升
Owner SHANGHAI MUNICIPAL ENG DESIGN INST GRP
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