A strain-based load identification model for beams in building structures

Kappyo Hong, Jihoon Lee, Se Woon Choi, Yousok Kim, Hyo Seon Park

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)9909-9920
Number of pages12
JournalSensors (Switzerland)
Volume13
Issue number8
DOIs
Publication statusPublished - 2013 Jan 1

Fingerprint

Steel
Loads (forces)
Identification (control systems)
Fiber Bragg gratings
Sensors
sensors
Bragg gratings
Hydraulic tools
fibers
Flanges
Strain gages
jacks
flanges
strain gages
hydraulics
Monitoring
Computer simulation
steels

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Atomic and Molecular Physics, and Optics
  • Biochemistry
  • Instrumentation
  • Electrical and Electronic Engineering

Cite this

Hong, Kappyo ; Lee, Jihoon ; Choi, Se Woon ; Kim, Yousok ; Park, Hyo Seon. / A strain-based load identification model for beams in building structures. In: Sensors (Switzerland). 2013 ; Vol. 13, No. 8. pp. 9909-9920.
@article{117d2eb1de7d411caa5ba6f58202fcde,
title = "A strain-based load identification model for beams in building structures",
abstract = "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.",
author = "Kappyo Hong and Jihoon Lee and Choi, {Se Woon} and Yousok Kim and Park, {Hyo Seon}",
year = "2013",
month = "1",
day = "1",
doi = "10.3390/s130809909",
language = "English",
volume = "13",
pages = "9909--9920",
journal = "Sensors",
issn = "1424-3210",
publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",
number = "8",

}

A strain-based load identification model for beams in building structures. / Hong, Kappyo; Lee, Jihoon; Choi, Se Woon; Kim, Yousok; Park, Hyo Seon.

In: Sensors (Switzerland), Vol. 13, No. 8, 01.01.2013, p. 9909-9920.

Research output: Contribution to journalArticle

TY - JOUR

T1 - A strain-based load identification model for beams in building structures

AU - Hong, Kappyo

AU - Lee, Jihoon

AU - Choi, Se Woon

AU - Kim, Yousok

AU - Park, Hyo Seon

PY - 2013/1/1

Y1 - 2013/1/1

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=84881241799&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84881241799&partnerID=8YFLogxK

U2 - 10.3390/s130809909

DO - 10.3390/s130809909

M3 - Article

VL - 13

SP - 9909

EP - 9920

JO - Sensors

JF - Sensors

SN - 1424-3210

IS - 8

ER -