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Rapid early warning system and method for abnormal state of rigid suspender of high-speed rail arch bridge

An abnormal state and boom technology, applied in arch bridges, bridges, bridge parts, etc., can solve problems such as rare research, save manpower, improve early warning efficiency, and ensure safe service.

Active Publication Date: 2020-05-19
DALIAN UNIV OF TECH
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Problems solved by technology

[0004] At present, there are not many related researches on the rapid warning method and system of the abnormal state of the rigid suspender of the high-speed rail arch bridge

Method used

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  • Rapid early warning system and method for abnormal state of rigid suspender of high-speed rail arch bridge
  • Rapid early warning system and method for abnormal state of rigid suspender of high-speed rail arch bridge
  • Rapid early warning system and method for abnormal state of rigid suspender of high-speed rail arch bridge

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Embodiment Construction

[0039] Such as figure 1 It is a schematic diagram of the system of the present invention. The content of the present invention will be further described below with reference to the drawings and specific implementation examples.

[0040] Take a two-arch high-speed railway arch bridge as an example. The main span of the bridge has two train tracks and 21 suspenders. Now take one of the suspenders as an example. Through the rapid warning of the abnormal state of this suspender, the system of the present invention is introduced. detailed description. Set the example boom as 1# boom, and its position and measuring point layout are as follows figure 2 .

[0041] (1) Install vibration data collection and transmission subsystem

[0042] Consider the need for long-term collection of evaluation data of the service status of the boom, such as figure 2 As shown, lateral displacement measuring points are set on the lateral outside of 1# boom, strain measuring points are set on both lateral sid...

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Abstract

The invention provides a rapid high-speed train arch bridge rigid suspension rod abnormal state early warning system and a method thereof. The system comprises a vibration data acquisition and transmission subsystem, a data calculation and analysis subsystem and a rapid early warning subsystem, wherein the vibration data acquisition and transmission subsystem comprises a sensor and data transmission lines mounted on a high-speed train arch bridge structure, the data calculation and analysis subsystem is used for carrying out calculation and analysis on actually-measured suspension rod data based on different service state evaluation indexes, comparing the analysis result with an early warning threshold or an early warning envelope of each standard service state sub database established through utilizing actually-measured data of a suspension rod in a normal service state and rapidly evaluating a service state of the suspension rod, after the suspension rod is discovered to be in an abnormal state, the rapid early warning subsystem alarms to management personnel through modes of starting an alarm lamp, a handset alarm telephone or a short message. The system is advantaged in that the high-speed train arch bridge rigid suspension rod service state can be monitored, abnormity can be timely discovered, alarm can be emitted, and the system is of great significance to high-speed train arch bridge rigid suspension rod safe service and high-speed train safe operation.

Description

Technical field [0001] The invention belongs to the technical field of bridge engineering structural health monitoring, and specifically invents a rapid early warning system and method for the abnormal state of rigid hangers of high-speed rail arch bridges. Background technique [0002] China's high-speed railway has developed vigorously in recent years, and its construction speed and scale are the highest in the world. As of the end of 2016, China's high-speed railway operating mileage has exceeded 22,000 kilometers. High-speed rail trains have the characteristics of large capacity, fast transportation, and fixed track, which have important economic and strategic significance; therefore, it is necessary to pay attention to the service safety of high-speed rail and its auxiliary facilities. As an important infrastructure for high-speed rail crossing rivers and valleys, my country has built a large number of large-span high-speed rail bridges. In order to ensure the high-speed a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/06G06Q50/08E01D4/00E01D19/00
CPCE01D4/00E01D19/00G06Q10/0635G06Q50/08
Inventor 安永辉管德龙欧进萍
Owner DALIAN UNIV OF TECH
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