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Improved assembled steel structure shed tunnel

A steel structure and assembled technology, which is applied in the field of sheds and caves, can solve the problems of affecting the safe operation of railways, short service life, and damage, and achieve the effects of low construction and construction costs, improving safe operation, and avoiding damage

Pending Publication Date: 2022-03-04
CHINA ELECTRIC POWER RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the impact load of the wires, this kind of steel structure shed is quite fragile, easy to cause damage, short service life, and greatly affects the safe operation of the railway
The inventors have found through long-term observation that the probability of the "roof" of this kind of shed hole structure being partially damaged due to local impact force cannot be underestimated. damage to the impact

Method used

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  • Improved assembled steel structure shed tunnel
  • Improved assembled steel structure shed tunnel
  • Improved assembled steel structure shed tunnel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] An assembled steel structure shed hole provided in this embodiment, such as figure 1 As shown, the vertical column 1 is arranged on both sides of the tunnel 6, and the beam 3 and the column 1 at the top of the column 1 form a door frame unit, and the longitudinal beams perpendicular to the beam 3 are arranged between the adjacent door frame units. It includes the main longitudinal beam 2 arranged in the middle of the beam 3 and the auxiliary longitudinal beams 4 at both ends of the beam 3, side beams 5 are arranged between adjacent columns 1; beams are arranged between the longitudinal beams; the roof of the shed hole is made of longitudinal beams The grid-like "roof" composed of beams and beams is provided with steel plates, waterproof layers and energy-absorbing layers in sequence. The longitudinal beams and / or transverse beams are provided with energy-absorbing units 7 coaxial with the beams, preferably each longitudinal beam or transverse beam is provided with one e...

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Abstract

The invention provides an improved split mounting type steel structure shed tunnel. The shed tunnel is provided with vertical supporting columns arranged on the two longitudinal sides of the tunnel and a shed tunnel top. A beam on the top of the shed tunnel is provided with a long-strip-shaped energy absorption unit located on the same axis as the longitudinal beam, and the energy absorption unit comprises an elastic connecting rod, a switching rod and a buffering piece which are sequentially arranged on the same axis in the direction from the starting end to the reverse end. According to the energy absorption structure provided by the invention, the steel structure shed tunnel effectively buffers the impact load effect of the wire, the tension between the adjacent stand columns is reduced, and the damage to the steel structure shed tunnel is greatly reduced.

Description

technical field [0001] The invention relates to a shed cave, in particular to an improved assembled steel structure shed cave. Background technique [0002] With the rapid development and construction of UHV power grids and high-speed railways, there are more and more cases where high-voltage power lines cross high-speed railways. . For the power lines that have been built, the design standard is based on the ice thickness of 10 mm. However, in extreme natural environments, the wire ice thickness can reach 20 mm. The huge ice thickness increases the load on power lines and increases the risk of wire breakage or tower collapse. When the high-speed railway crosses the power line, once a disconnection accident occurs in the power line, the power line will drop to the high-speed rail line. The high-speed falling power lines will impact and damage the rails, affect the daily operation of the railway, and cause immeasurable economic losses and social impacts. Existing permanen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04H1/12E04B1/19E04B1/98E04B7/00E04D13/00E04D13/16
CPCE04H1/1205E04B1/19E04B1/98E04B7/00E04D13/00E04D13/16
Inventor 万建成孙立江蔡松林夏拥军孟凡豪
Owner CHINA ELECTRIC POWER RES INST
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