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Damage stopping device used after collision of large-cantilever single-column pier bridge

A single-column pier, post-impact technology, applied to bridges, bridge construction, bridge parts, etc., can solve problems such as cap beam damage, pier body cracking, and pier torsion

Pending Publication Date: 2022-06-24
SHIJIAZHUANG TIEDAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the poor torsional performance of the single-column pier, once the longitudinal impact accident of the large-cantilever single-column pier bridge occurs, not only the cover beam will be damaged, but the pier will be twisted and the pier body will crack, causing very serious consequences.

Method used

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  • Damage stopping device used after collision of large-cantilever single-column pier bridge
  • Damage stopping device used after collision of large-cantilever single-column pier bridge
  • Damage stopping device used after collision of large-cantilever single-column pier bridge

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Embodiment Construction

[0031] Attached below Figure 1-9 The specific embodiments of the present invention will be further described in detail.

[0032] like Figure 1-9 As shown, a kind of stop-loss device of the present invention after the large cantilever single-column pier bridge is hit, it has both energy dissipation and anti-torsion failure functions, including the cover beam 2 on the top of the single-column pier 3, the hollow plate beam 1, the loss Energy device and anti-torsion failure device. The top of the cover beam 2 supports the hollow plate beam 1 through the support 7 .

[0033] like Figure 1-3 and Figure 9 As shown, the energy consuming device includes an upper energy consuming device 8-1 and an outer energy consuming device 8-2. The upper energy dissipation device 8-1 is arranged between the single-column pier bridge cover beam 2 and the hollow plate beam 1 . The external energy dissipation device 8-2 is arranged on the outer side of the bottom of the cover beam 2 of the si...

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Abstract

The invention relates to a damage stopping device used after a large-cantilever single-column pier bridge is impacted, and belongs to the field of bridge disaster prevention. The single-column pier has the functions of energy consumption and torsion failure resistance, and comprises a cover beam at the top of the single-column pier, a hollow slab beam, an energy consumption device and a torsion failure resistance device, the top of the cover beam supports the hollow slab beam through a support; the energy consumption device comprises an upper energy consumption device and an outer energy consumption device; the upper energy consumption device is arranged between the single-column pier bridge cover beam and the hollow slab beam; the outer energy consumption device is arranged on the outer side of the bottom of the single-column pier bridge cover beam; each of the upper energy consumption device and the outer energy consumption device comprises a steel plate, a steel bar, soft steel, lead, a piston rod and a steel block; the torsion failure resisting device comprises a cover beam steel anchor block, a bearing platform steel anchor block, a pipeline, a steel strand, an electric traction machine and an anchorage device, the cover beam steel anchor block is arranged on the upper portion of the outer side of a cover beam, the bearing platform steel anchor block is arranged on the top of a bearing platform under the earth surface, and the cover beam steel anchor block and the bearing platform steel anchor block are combined and connected into a whole through the pipeline, the steel strand, the anchorage device and the electric traction machine.

Description

technical field [0001] The invention relates to a loss stop device, in particular to a loss stop device for a large cantilever single-column pier bridge with both energy dissipation and anti-torsion failure functions under vehicle impact load after being hit, and belongs to the technical field of bridge disaster prevention. Background technique [0002] In recent years, single-column pier bridges have been widely used in the construction of expressways and urban interchanges due to their beautiful structure and small footprint, and their safety cannot be underestimated. At present, Chinese bridge workers pay more attention to the lateral anti-overturning ability of single-column pier bridges, and seldom consider the longitudinal impact resistance of single-column pier bridges. Due to the poor torsional performance of the single-column pier, once the longitudinal impact accident of the large cantilever single-column pier bridge occurs, not only the cover beam will be damaged,...

Claims

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Application Information

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IPC IPC(8): E01D1/00E01D19/02
CPCE01D1/00E01D19/02Y02A30/30
Inventor 许宏伟李勇李琰刘永前陈树礼张彦兵
Owner SHIJIAZHUANG TIEDAO UNIV
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