Self-anchorage cable bent tower driving cross brace arranging method

A self-anchored, cross-braced technology, applied in bridge construction, erection/assembly of bridges, bridges, etc., can solve problems such as high safety risks, complicated procedures, and insufficient operation convenience, so as to ensure project quality, simplify construction steps, Improve the effect of structural stress

Inactive Publication Date: 2018-05-15
ROAD & BRIDGE INT +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method still has problems such as complicated proce

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  • Self-anchorage cable bent tower driving cross brace arranging method
  • Self-anchorage cable bent tower driving cross brace arranging method
  • Self-anchorage cable bent tower driving cross brace arranging method

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Embodiment Construction

[0024] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0025] see image 3 , the invention discloses a method for setting the active cross brace of a self-anchored cable tower, which includes the following steps:

[0026] 1) Process the brace body; the brace body includes a brace steel pipe 1, a brace steel pipe load-bearing beam 3 and a first corbel 5, one end of the brace steel pipe 1 is a fixed end, the other end is a force end, the The supporting steel pipe load-bearing beam 3 is welded to the inside of the force end of the horizontal supporting steel pipe 1 through the first corbel 5;

[0027] 2) Process the steel casing; first, set the steel casing load-bearing beam 4 and the second corbel 6 inside the steel casing 2, and the back of the steel casing load-bearing beam 4 passes through the second corbel 6 and the steel casing 2 Welding and fixing; then open a reserved hole about 50cm*50cm ...

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Abstract

The invention discloses a self-anchorage cable bent tower driving cross brace arranging method. The method comprises the following steps of 1 machining a cross brace body, 2 machining a steel casing pipe, 3 lifting a cross brace body and the steel casing pipe, 4 installing a jack and 5 performing welding and fixing. The overall anti-bending capacity of the cable bent tower can be improved, a transverse brace steel tube bearing beam and a steel casing pipe bearing beam are arranged inside the cross brace steel pipe and the steel casing pipe in advance respectively, then, in the installing process, the jack can synchronously act on the cross brace steel pipe and the steel casing pipe according to the designed jacking force, and then the movable connection portion of the cross brace steel pipe and the steel casing pipe is welded and fixed after the cross brace steel pipe and the steel casing pipe are in place; according to the method, under the concrete dead-weight construction load and wind load effect, the pylon root pulling stress can be greatly lowered, and therefore the pylon generate no crack; it is ensured that construction is performed in order while the construction quality is ensured; meanwhile, construction of the cross brace is convenient, and the construction safety and stability can be improved.

Description

technical field [0001] The invention relates to a supporting device for the construction of cable towers such as cable-stayed bridges and suspension bridges, in particular to a method for setting active cross braces of self-anchored cable towers. Background technique [0002] At present, the following methods are usually used to set cross braces in the field of cable-stayed bridge cable tower construction: First, prestressed steel strands and steel pipe cross braces (such as figure 1 As shown), this method has a large workload, consumes manpower, slow construction progress, and low work efficiency; the second is the frame support (such as figure 2 As shown), as the height of the tower increases, the erection of the false frame will be more difficult, and under the influence of the wind, the construction safety will be greatly reduced; [0003] The third method is to use horizontal steel pipe support. This method is to use horizontal steel pipe support as a temporary transv...

Claims

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Application Information

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IPC IPC(8): E01D11/00E01D21/00
CPCE01D11/00E01D21/00
Inventor 吴乾坤闫朔杨亚海张铮郭宝圣张鹏王磊李林华
Owner ROAD & BRIDGE INT
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