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Structure reinforcement and multi-parameter synchronous monitoring device based on self-sensing carbon fiber cloth

A carbon fiber cloth, self-sensing technology, used in measurement devices, building maintenance, building construction, etc., can solve problems such as threatening structural safety, applicability and durability, achieve good reinforcement performance, reduce construction costs, and reduce redundancy. The effect of the process

Pending Publication Date: 2019-01-18
武汉地震工程研究院有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The occurrence of these situations seriously threatens the safety, applicability and durability of the structure

Method used

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  • Structure reinforcement and multi-parameter synchronous monitoring device based on self-sensing carbon fiber cloth
  • Structure reinforcement and multi-parameter synchronous monitoring device based on self-sensing carbon fiber cloth
  • Structure reinforcement and multi-parameter synchronous monitoring device based on self-sensing carbon fiber cloth

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Experimental program
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Embodiment Construction

[0045] Below in conjunction with accompanying drawing and embodiment describe in detail:

[0046] 1. Self-sensing carbon fiber cloth 10

[0047] 1. Overall

[0048] Such as figure 1 , the self-sensing carbon fiber cloth 10 includes the work object—civil structure 15;

[0049] The first and second piezoelectric material sensors 11 and 12, multi-core optical fiber 13 and carbon fiber cloth 14 are provided;

[0050] The first and second piezoelectric material sensors 11 and 12 are integrated on the carbon fiber cloth 14 by epoxy resin bonding, or are woven in the carbon fiber cloth 14 and fixed by epoxy resin bonding, and the multi-core optical fiber 13 is woven on the carbon fiber cloth 14 Inside;

[0051] The self-sensing carbon fiber cloth 10 is bonded on the civil structure 15 by epoxy resin impregnated glue for reinforcement, and the first and second piezoelectric material sensors 11 and 12 are respectively located at opposite positions on both sides of the civil structu...

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Abstract

The invention discloses a structure reinforcement and multi-parameter synchronous monitoring device based on self-sensing carbon fiber cloth and relates to civil structure reinforcement and monitoringtechnologies. According to the device, a pair of piezoelectric material sensors compounded on the self-sensing carbon fiber cloth are respectively connected with an NI signal acquisition card, and the NI signal acquisition card is connected with an evaluation system to obtain the capability of monitoring damage and diseases of a reinforced structure; and multi-core optical fiber compounded on theself-sensing carbon fiber cloth is connected with a multi-core optical fiber coupler, and the multi-core optical fiber coupler, an optical switch, distributed optical fiber cloth is sequentially connected with a sensing system and an evaluation system to obtain the capability of monitoring the stress change, bending change and temperature change of the civil structure. According to the invention,the service state of the reinforced structure is provided for a long time while the civil structure is reinforced, so that the monitoring efficiency is effectively improved, the construction is convenient and fast, and the cost is low; the device is widely applicable to the reinforcement and monitoring of beams, columns and panels of concrete buildings and bridges, and the reinforcement and monitoring of tunnels, harbor facilities, chimneys, warehouses and factory buildings.

Description

technical field [0001] The invention relates to civil structure reinforcement monitoring technology, in particular to a structure reinforcement and multi-parameter synchronous monitoring device based on self-sensing carbon fiber cloth. Background technique [0002] Although civil structures are required to strictly meet the functional requirements given by the design under normal use conditions and within the scheduled use time at the design stage, civil structures in the natural environment will continue to be subject to various uncertain factors during the service process. Impacts, such as accidental loads such as earthquakes, fires, and typhoons, uneven settlement of civil structure foundations, and overloading of roof loads. The occurrence of these situations seriously threatens the safety, applicability and durability of the structure. In addition, many civil structures that need to be changed in building use and have approached or reached their design service life als...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G23/02G01D21/02
CPCG01D21/02E04G23/0218
Inventor 冯谦梁亚斌蔡思佳王浩
Owner 武汉地震工程研究院有限公司
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