Building steel box girder external prestress buffering device and construction technology

A technology of external prestressing and buffering device, which is applied in the directions of buildings, bridges, bridge parts, etc., can solve the problems of weak stress buffering effect, affecting the stress buffering effect, and easy accumulation of debris.

Active Publication Date: 2021-09-10
中铁建安工程设计院有限公司
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0004] However, when the above-mentioned external prestressed buffer device is in use, the transverse parallel stress buffering effect between two adjacent building steel box girders is better, but the stress buffering effect in other directions is relatively weak, and the reliability of use is poor. It is easy to accumulate debris between multiple

Method used

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  • Building steel box girder external prestress buffering device and construction technology
  • Building steel box girder external prestress buffering device and construction technology
  • Building steel box girder external prestress buffering device and construction technology

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Embodiment

[0037] see Figure 1-7 , an external prestressed buffer device for building steel box girders, including a plurality of telescopic tubes, and two connecting end frames, both of which include an upper beam 8 and a lower beam 9, an upper beam 8 and a lower The beams 9 are connected by a plurality of vertical rods 10, and oblique struts 28 are fixedly connected between every two adjacent vertical rods 10 in the plurality of vertical rods 10, and the top and bottom ends of the oblique struts 28 are respectively connected with The upper beam 8 and the lower beam 9 are fixedly connected to improve the structural strength between the vertical bar 10 and the upper beam 8 and the lower beam 9, and there are two diagonally fixed connections between the upper beam 8 and the lower beam 9 The side bar 11, the front seat cover 4 and the rear seat cover 5 are respectively fixedly connected to the two upper beams 8, and the two hypotenuse bars 11 are fixedly connected with a diagonal strut 26...

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Abstract

The invention relates to the technical field of buffering devices, in particular to a building steel box girder external prestress buffering device and a construction technology, the building steel box girder external prestress buffering device comprises a plurality of telescopic pipes and two connecting end frames, a plurality of telescopic auxiliary pipes are installed between the two connecting end frames, and the telescopic pipes and the telescopic auxiliary pipes are connected with the connecting end frames through a plurality of connecting assemblies; a plurality of front seat sleeves and a plurality of rear seat sleeves are fixedly connected to the two connecting end frames respectively, strip holes are formed in the front seat sleeves and the rear seat sleeves respectively, a grid frame assembly is arranged between the front seat sleeves and the rear seat sleeves, two connecting rods are arranged in the grid frame assembly, the two connecting rods are inserted into the two strip holes respectively and provided with elastic assemblies respectively, positioning bolts are connected to the front seat sleeve and the rear seat sleeve, the stress buffering effect is good, use is reliable, sundries are not prone to entering gaps in the grid frame assembly, the buffering effect is stable after long-term use, and meanwhile the overall structure of the grid frame assembly is convenient to disassemble and assemble, easy to maintain and good in practicability.

Description

technical field [0001] The invention relates to the technical field of buffer devices, in particular to an external prestressed buffer device for a building steel box girder and a construction process. Background technique [0002] As we all know, building steel box girder is a commonly used structural form of large cross-border bridges. It is generally connected by roof, bottom plate, web, transverse diaphragm, longitudinal diaphragm and stiffeners, etc., in which the roof is made of The orthotropic bridge deck composed of cover plate and longitudinal stiffener is called steel box girder because it looks like a box. [0003] Because building steel box girders are generally used on bridges with large spans, steel box girders are generally designed according to the length of the construction site, and then transported and welded at the bridge construction site. Large, so there are many welds in the building steel box girder body, and the welding between multiple sections is ...

Claims

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Application Information

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IPC IPC(8): E01D19/00E01D19/06E01D21/00E01D2/04
CPCE01D19/00E01D19/06E01D21/00E01D2/04
Inventor 张清亮张军昭李晓宁
Owner 中铁建安工程设计院有限公司
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