Telescopic truss crossbeam and manufacture method thereof

A manufacturing method and telescopic technology, applied in truss bridges, manufacturing tools, erecting/assembling bridges, etc., can solve problems such as the influence of girder straightness

Active Publication Date: 2013-09-25
SHANGHAI ZHENHUA HEAVY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In addition, the upper and lower tracks of the girder are welded with square steel and the supporting rail beam, and the material of the upper track part is WDB620 high-strength

Method used

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  • Telescopic truss crossbeam and manufacture method thereof
  • Telescopic truss crossbeam and manufacture method thereof
  • Telescopic truss crossbeam and manufacture method thereof

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Embodiment Construction

[0057] The present invention will be further described below in conjunction with specific embodiments and accompanying drawings, but the protection scope of the present invention should not be limited thereby.

[0058] figure 1 The manufacturing method of the telescopic truss girder of this embodiment is shown, including:

[0059] Step S11, prefabricating the top chord of the girder and the diagonal web of the girder, the top chord of the girder and the diagonal web of the girder have a symmetrical I-shaped beam section;

[0060] Step S12, vertically assembling and welding the upper flange of the lower chord of the girder and the upper half of the web of the trolley rail girder to form a T row of trolley rail girders, vertically assembling and welding the lower flange of the lower chord of the girder with the web of the girder Chengda beam bearing beam T row;

[0061] Step S13, assembling and welding the T row of trolley rail girders, the T row of girder rail girders, and th...

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Abstract

The invention provides a telescopic truss crossbeam and a manufacture method thereof. The manufacture method comprises the following steps: a crossbeam upper chord and a crossbeam diagonal web member are prefabricated; T-shaped trolley support rail beams and T-shaped crossbeam support rail beam are assembled and welded; a crossbeam lower chord is formed through the assembly and welding of the T-shaped trolley support rail beams, the T-shaped crossbeam support rail beams and a section of web member at the lower parts of the trolley support rail beams; the crossbeam upper chord and the crossbeam lower chord are placed parallelly, and the crossbeam diagonal web member is obliquely welded between the crossbeam upper chord and the crossbeam lower chord, so that a left lateral plate and a right lateral plate are formed; the left lateral plate and the right lateral plate are erected, and an upper-layer horizontal bracing tube and a lower-layer horizontal bracing tube and a middle inclined bracing tube are welded between the left lateral plate and the right lateral plate; crossbeam upper rails are welded on the crossbeam upper chord, crossbeam lower rails are welded on a lower wing plate of the crossbeam lower chord, and trolley rails are mounted on an upper wing plate of the crossbeam lower chord. According to the method, the sidewise bending and flatness of the crossbeam, the new game start of the rail and the like can be controlled in a precision range.

Description

technical field [0001] The invention relates to a telescopic truss girder and a manufacturing method thereof. Background technique [0002] The conventional quay bridge girder is divided into a front girder and a rear girder. The rear girder and the upper beam are connected by rigid welding. Easier. The telescopic truss girder is composed of I-beams, round pipes, upper and lower chords of the girder, connecting beams on the sea and land sides, and six rails (four of which are welded) as a whole, and there is no distinction between front and rear girders. The entire girder is supported by the suspension device set on the upper beam on the sea and land side, and the driving mechanism is used to make it run in the direction of the sea and land side, so as to effectively reduce the overall height of the quay bridge. This special structure requires special manufacturing technology, so that it can Effectively control the overall straightness of the girder, the opening of the tra...

Claims

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Application Information

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IPC IPC(8): E01D21/00E01D6/00B23K31/02
Inventor 李森余良辉周维徐建中耿金贯百佳欢
Owner SHANGHAI ZHENHUA HEAVY IND
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