Cable force monitoring system and monitoring method of wide-span pre-stress stay cable steel structure

A cable force monitoring and prestressing technology, used in force/torque/work measuring instruments, measuring devices, instruments, etc., can solve problems such as errors, difficult cable layout, and large external influences

Active Publication Date: 2014-10-22
ZHEJIANG CONSTR SUPERVISION
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The invention mainly solves the technical problems that the existing monitoring devices adopt wired layout, is greatly affected by the outside world, and difficult to lay cables, and at the same time solves the problem that the data measureme

Method used

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  • Cable force monitoring system and monitoring method of wide-span pre-stress stay cable steel structure
  • Cable force monitoring system and monitoring method of wide-span pre-stress stay cable steel structure
  • Cable force monitoring system and monitoring method of wide-span pre-stress stay cable steel structure

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Embodiment

[0048] Embodiment: The large-span prestressed steel structure cable force monitoring system of this embodiment is used for the cable force monitoring of the main stress-bearing structure of the long-span cable truss in the space cable truss structure system, such as figure 1 As shown, the cable truss structure 1 includes a steel column 11 supporting and tensioning the membrane surface structure, a steel ring beam 12, an upper radial cable 13, a lower radial cable 14 and a ring cable 15, such as figure 2 As shown, the monitoring system 2 includes a monitoring host 21 and multiple groups of stress collectors 22, each group of stress collectors corresponds to monitoring a single cable truss structure, and each group of stress collectors consists of several upper radial cable stress collectors, lower radial cable stress collectors Collector, ring cable stress collector, ring beam stress collector and steel column stress collector. The stress collector is composed of a sensor modul...

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Abstract

The invention discloses a cable force monitoring system and monitoring method of a wide-span pre-stress stay cable steel structure. The monitoring system comprises a monitoring host and multiple groups of stress gatherers. The stress gatherers are in wireless connection with the monitoring host, each group of stress gatherers are composed of a plurality of upper radial cable stress gatherers, lower radial cable stress gatherers, ring cable stress gatherers, ring beam stress gatherers and steel column stress gatherers. Each stress gatherer is externally connected with a strain sensor. According to the invention, the multiple groups of stress gatherers are arranged in a wide-span space cable truss structure system so that stress change of major bearing structures can be continuously monitored in real time and monitoring data is transmitted to the monitoring host in a wireless mode for recording, analyzing, calculating and management, thus the onsite maintenance difficulty and cost are greatly reduced, and the system stability and convenience are also improved.

Description

technical field [0001] The invention relates to a measuring device, in particular to a cable force monitoring system and a monitoring method of a large-span prestressed cable steel structure with wireless networking, remote monitoring and accurate data. Background technique [0002] The research on construction monitoring technology of large-scale civil engineering structures mainly focused on highway bridges, dams, and offshore platforms in the early stage. The construction monitoring of long-span steel structures started relatively late. Theoretical and applied research of this technology is being carried out competitively, and various advanced testing methods such as photoelectric, ultrasonic, electromagnetic, etc. have been applied. It is also the most common application in bridge engineering. For example, the stress monitoring of the tensioning process of the prestressed cables of the Jiangsu Tongyu River Project Main Canal Highway Bridge was carried out. [0003] As a...

Claims

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Application Information

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IPC IPC(8): G01L5/00
Inventor 黄啸蔚金健叶军献叶丽宏石金阳高淑微
Owner ZHEJIANG CONSTR SUPERVISION
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