Bridge pier anti-collision wall in expressway medial strip

A technology for central dividers and highways, applied in bridges, bridge parts, bridge construction, etc., can solve the problems of energy dissipation, limited width and size of anti-collision guardrail structures, etc., and achieve good energy dissipation, small deformation, uniform and smooth viewing angle Effect

Pending Publication Date: 2021-11-23
GUANGDONG PROVINCE COMM PLANNING & DESIGN INST +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 2. The impact surface of the pier anti-collision barrier structure is a straight-face type, which is limited by the width of the central divider of the expressway. The width of the anti-collision barrier structure set on the inner side is limited. Difficult to dissipate energy during collision

Method used

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  • Bridge pier anti-collision wall in expressway medial strip
  • Bridge pier anti-collision wall in expressway medial strip
  • Bridge pier anti-collision wall in expressway medial strip

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Embodiment Construction

[0034] The technical solution of the present invention will be described in detail below in conjunction with the drawings and embodiments, so that those skilled in the art can better understand and implement the technical solution of the present invention.

[0035] A kind of pier anti-collision wall in the median of expressway, see figure 1 and 2 , including the heightening protection section 2 and the transition section 3, the heightening protection section 2 wraps a pier 1 in the middle, and leaves a gap 6 between the pier 1 and the heightening protection section 2 and the highway central guardrail 4 The transition section 3, the transition section 3 is a height transition structure, which gradually transitions from the height of the heightening protection section 2 to the height of the guardrail 4, such as Figures 3 to 5 As shown, the collision surfaces of the heightened protection section 2 and the transition section 3 are slope structures with the same slope angle, and ...

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Abstract

The invention discloses a bridge pier anti-collision wall in an expressway medial strip, which comprises a heightened protection section and a transition section, the heightened protection section wraps at least one pier in the middle, a gap is reserved between the heightened protection section and the pier, a transition section is arranged between the heightened protection section and an expressway central guardrail, the transition section is of a height transition structure, the height of the heightened protection section is gradually transited to the height of the guardrail, the head-on collision face of the heightened protection section and the head-on collision face of the transition section are of slope face structures with the same slope face angle, and the heightened protection section is a reinforced slope face section. The impact force of vehicles on the piers can be dissipated, heeling generated when the vehicles collide with the piers is reduced, and the protection level of the piers arranged on the highway medial strip is improved.

Description

technical field [0001] The invention belongs to the technical field of civil engineering, and in particular relates to an anti-collision wall for bridge piers in the central divider of an expressway. Background technique [0002] With the vigorous development of bridge construction in our country, it is common for expressways to cross each other. For bridges that span expressways, if piers are not arranged in the central divider of expressways that are spanned, then bridges with larger spans must be used. For the bridge structure, the height of the corresponding bridge span increases a lot, the longitudinal section of the main bridge needs to be raised, the length of the approach bridge connection increases, the economy of the bridge structure is not good, and the construction of the long-span bridge is difficult and the construction period is long. [0003] Therefore, when expressways cross each other, bridge piers are often arranged in the central divider of the existing e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/02E01D19/10F16F15/02A01G9/02
CPCE01D19/02E01D19/103F16F15/02A01G9/02
Inventor 黄少雄刘小飞黄森华何海吴海平林壮宏刘明刘旷达朱凯喻志然
Owner GUANGDONG PROVINCE COMM PLANNING & DESIGN INST
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