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Continuous variable-thickness waveform steel web

A corrugated steel web, variable thickness technology, applied in construction, bridges and other directions, to achieve the effect of saving steel, flexible and convenient use, and simple processing

Active Publication Date: 2019-02-22
ZHONG DIAN JIAN JI JIAO EXPRESSWAYINVESTMENT DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, as far as the existing technology is concerned, the standard width splicing of steel plates of different thicknesses cannot avoid the negative impact brought by the splicing of steel plates.

Method used

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  • Continuous variable-thickness waveform steel web
  • Continuous variable-thickness waveform steel web
  • Continuous variable-thickness waveform steel web

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Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0028] Specific implementation mode one: as figure 1 As shown, the raw material of this embodiment is a variable thickness steel plate 8, which is a strip-shaped plate body, one side is an inclined surface, and the other side is a straight surface. The variable thickness steel plate 8 is rolled by a factory, and its thickness variation range is 8 to 40 mm, the upper limit of the steel plate thickness change rate of the variable thickness steel plate 8 is 15 mm per linear meter of steel plate thickness difference. T is the thickness of the variable-thickness steel plate 8, t1 is the thickness of the thick plate section at the right end of the variable-thickness steel plate 8, and t2 is the thickness of the thin plate section at the left end of the variable-thickness steel plate 8, and the variable-thickness steel plate 8 and its change rate fully meet the needs of steel plates for bridges .

[0029] Such as figure 2 , image 3 and Figure 4 As shown, in this embodiment, a ...

specific Embodiment approach 2

[0038] Specific implementation mode two: as Figure 8 and Figure 9 As shown, the sample of the present invention is compared with the existing welded corrugated steel webs of different thicknesses for stress analysis, wherein the bottom end of the corrugated web along the wave transformation direction of the corrugated steel web is the constraint end, and the wave form of the corrugated steel web is transformed The top of the corrugated plate in the direction of , the applied load is a uniformly distributed surface load in the thickness direction of the steel plate, and its value is 1kN / m 2 , the corrugated web specification is the 1000 type commonly used in engineering.

[0039] Such as Figure 8 As shown, the model of welded corrugated steel webs with different thicknesses is spliced ​​by two types of steel webs with a thickness of 16 mm and a thickness of 22 mm, and the spliced ​​weld seam is Figure 8 The position of the middle dotted line, it can be seen from the stre...

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Abstract

The invention discloses a continuous variable-thickness waveform steel web. The continuous variable-thickness waveform steel web comprises a plurality of constituent bodies which are sequentially connected to form a steel web body, wherein each constituent body comprises a lower straight plate, a first inclined plate, an upper straight plate and a second inclined plate, the lower straight plate and the upper straight plate are horizontally arranged side by side, the first inclined plate is arranged between the lower straight plate and the upper straight plate, the lower end of the first inclined plate is connected with one end of the lower straight plate, the higher end of the first inclined plate is connected with one end of the upper straight plate, the other end of the upper straight plate is connected with the higher end of the second inclined plate; and the other end of the lower straight plate in each constituent body is connected with the lower end of the second inclined plate in the other adjacent constituent body, the thickness of the lower straight plate in each constituent body is gradually reduced in a length direction of the steel web body, and the thickness of the upper straight plate in each constituent body is gradually reduced in the length direction of the steel web body 9. The continuous variable-thickness waveform steel web is mainly used for the technical field of bridge engineering.

Description

technical field [0001] The invention relates to a continuously variable-thickness corrugated steel web, which belongs to the technical field of bridge engineering. Background technique [0002] PC box girder bridges with corrugated steel webs first appeared in France. France pioneered the construction of several representative PC box girder bridges with corrugated steel webs in the 1980s. Subsequently, this type of bridge structure was introduced in Japan. has been vigorously developed. The first PC box girder with corrugated steel webs in my country was built in 2005. Although the development of PC box girders with corrugated steel webs started relatively late in China, PC box girder bridges based on corrugated steel webs have superior structural performance, short construction period, and Therefore, in the past ten years, PC box girder bridges with corrugated steel webs have been more and more widely used in my country. According to incomplete statistics, as of 2018, the n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D2/04
CPCE01D2/04
Inventor 贾献卓丁勇常英朱斌陈光刘剑郝建周彤张志强耿东方
Owner ZHONG DIAN JIAN JI JIAO EXPRESSWAYINVESTMENT DEV CO LTD
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