Main beam overturning monitoring and active protection device for single-column pier bridge

A technology of active protection and main girders, which is applied in the direction of measuring devices, bridges, bridge maintenance, etc., can solve problems such as lack of safety monitoring methods, and achieve the effects of data stability, enhanced structural stability, and high precision

Pending Publication Date: 2020-12-15
HUNAN LIANZHI BRIDGE & TUNNEL TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, for a large number of single-pillar pier bridges that have been reinforced and transformed, there is no long-term real-time safety monitoring method and safety emergency protection device to monitor and actively protect the hidden dangers of box girder overturning on single-pillar piers

Method used

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  • Main beam overturning monitoring and active protection device for single-column pier bridge
  • Main beam overturning monitoring and active protection device for single-column pier bridge
  • Main beam overturning monitoring and active protection device for single-column pier bridge

Examples

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Embodiment 1

[0031] see Figure 1 to Figure 5 , an overturning monitoring and active protection device for a main girder of a single-pillar pier bridge, this embodiment is applied to the main girder of a bridge with a single pier and a single support.

[0032] An overturning monitoring and active protection device for the main girder of a single-pillar pier bridge includes a laser monitoring unit and a safety emergency protection unit;

[0033] The safety emergency protection unit includes a circular bottom anchor plate 3, a special steel drum 4 and a protective component; the circular bottom anchor plate 3 is fixed on the bottom of the main beam 12; the protective component is installed on the circular bottom anchor plate 3; the special steel The bucket 4 is set on the top of the pier and fixed with the reinforcement bolt 1;

[0034] The protective assembly includes an electromagnet sucker 9, a hanging rod 10 and a rotating disk 11; the hanging rod 10 is made of iron, and the two ends of...

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PUM

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Abstract

The invention provides a main beam overturning monitoring and active protection device for a single-column pier bridge. The main beam overturning monitoring and active protection device comprises a laser monitoring unit and a safety emergency protection unit; the safety emergency protection unit comprises a circular ring type bottom anchoring plate, a specially-made steel drum and a protection assembly; the circular ring type bottom anchoring plate is fixed at the bottom of a main beam; the protection assembly is installed on the circular ring type bottom anchoring plate; the specially-made steel drum sleeves the top of a pier and is fixed by embedded steel bar bolts; the protection assembly comprises an electromagnet suction cup, a hanging rod and a rotary disc; the two ends of the hanging rod are respectively arranged on the circular ring type bottom anchoring plate through the electromagnet suction cup and the rotary disc; and barbs are arranged at the end, adsorbed on the electromagnet suction cup, of the hanging rod, and when the bridge overturns, the hanging rod falls off from the electromagnet suction cup and is buckled on the specially-made steel drum to be used for supporting the bridge. The main beam overturning monitoring and active protection device is simple in structure, convenient to install and durable, meanwhile, can automatically monitor the deflection condition of the main beam at any time, and can also realize the function of active safety protection.

Description

technical field [0001] The invention relates to the technical field of bridge monitoring and emergency response, in particular to an overturning monitoring and active protection device for the main girder of a single-pillar pier bridge. Background technique [0002] The single-pillar bridge has been used for a long time. Due to its economical appearance, less interference with driving sight, and less land occupation under the bridge, it is widely used in urban overpasses, high-speed ramps, and highway bridge crossings. However, single-column piers mostly adopt non-pier-beam consolidation structures, and the pier tops have weak torsional and overturning capabilities. Under heavy traffic conditions of overload or partial load, major accidents such as main girder overturning and vehicle crashes may occur. [0003] At present, the monitoring of single-column piers is mainly carried out through manual inspection, and the technical means are regular or irregular manual visual insp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D22/00G01S17/08G01S17/88
CPCE01D22/00G01S17/08G01S17/88
Inventor 谢鸿黄小芳刘柳奇唐登波侯杰刘正兴谢应豪周思雄王洪玉张鑫宇肖骏文
Owner HUNAN LIANZHI BRIDGE & TUNNEL TECH
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