A Strain-Based Load Identification Model for Beams in Building Structures
A strain-based load identification model for beam structures subjected to multiple loads is presented. The number of sensors for the load identification model is the same as the number of load conditions acting on a beam structure. In the model, the contribution of each load to the strains measured...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2013-08-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1424-8220/13/8/9909 |
| _version_ | 1798005306500841472 |
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| author | Hyo Seon Park Yousok Kim Se Woon Choi Jihoon Lee Kappyo Hong |
| author_facet | Hyo Seon Park Yousok Kim Se Woon Choi Jihoon Lee Kappyo Hong |
| author_sort | Hyo Seon Park |
| collection | DOAJ |
| description | A strain-based load identification model for beam structures subjected to multiple loads is presented. The number of sensors for the load identification model is the same as the number of load conditions acting on a beam structure. In the model, the contribution of each load to the strains measured by strain sensors is defined. In this paper, the longitudinal strains measured from multiplexed fiber Bragg grating (FBG) strain sensors are used in the load identification. To avoid the dependency on the selection of locations for FBG sensors installed on a beam structure, the measured strain is expressed by a general form of a strain sensing model defined by superimposing the distribution shapes for strains from multiple loads. Numerical simulation is conducted to verify the model. Then, the load identification model is applied to monitoring of applied loads on a 4 m-long steel beam subjected to two concentrated loads. In the experiment, seven FBG sensors and nine electrical strain gages (ESGs) were installed on the surface of the bottom flange. The experimental results indicate a good agreement between estimated loadings from the model and the loads applied by a hydraulic jack. |
| first_indexed | 2024-04-11T12:37:02Z |
| format | Article |
| id | doaj.art-d117cbcf21cf44d39405bb358096831a |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T12:37:02Z |
| publishDate | 2013-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-d117cbcf21cf44d39405bb358096831a2022-12-22T04:23:35ZengMDPI AGSensors1424-82202013-08-011389909992010.3390/s130809909A Strain-Based Load Identification Model for Beams in Building StructuresHyo Seon ParkYousok KimSe Woon ChoiJihoon LeeKappyo HongA strain-based load identification model for beam structures subjected to multiple loads is presented. The number of sensors for the load identification model is the same as the number of load conditions acting on a beam structure. In the model, the contribution of each load to the strains measured by strain sensors is defined. In this paper, the longitudinal strains measured from multiplexed fiber Bragg grating (FBG) strain sensors are used in the load identification. To avoid the dependency on the selection of locations for FBG sensors installed on a beam structure, the measured strain is expressed by a general form of a strain sensing model defined by superimposing the distribution shapes for strains from multiple loads. Numerical simulation is conducted to verify the model. Then, the load identification model is applied to monitoring of applied loads on a 4 m-long steel beam subjected to two concentrated loads. In the experiment, seven FBG sensors and nine electrical strain gages (ESGs) were installed on the surface of the bottom flange. The experimental results indicate a good agreement between estimated loadings from the model and the loads applied by a hydraulic jack.http://www.mdpi.com/1424-8220/13/8/9909strain sensingload identificationstructural health monitoringsteel beams |
| spellingShingle | Hyo Seon Park Yousok Kim Se Woon Choi Jihoon Lee Kappyo Hong A Strain-Based Load Identification Model for Beams in Building Structures Sensors strain sensing load identification structural health monitoring steel beams |
| title | A Strain-Based Load Identification Model for Beams in Building Structures |
| title_full | A Strain-Based Load Identification Model for Beams in Building Structures |
| title_fullStr | A Strain-Based Load Identification Model for Beams in Building Structures |
| title_full_unstemmed | A Strain-Based Load Identification Model for Beams in Building Structures |
| title_short | A Strain-Based Load Identification Model for Beams in Building Structures |
| title_sort | strain based load identification model for beams in building structures |
| topic | strain sensing load identification structural health monitoring steel beams |
| url | http://www.mdpi.com/1424-8220/13/8/9909 |
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