Mathematical Modelling Of The Bridges Structural Monitoring II
We have seen in the previous paper that in the case of resistance elements made of steel, at least in this case study, the structure’s response to strains, in this case sunshine, is uncertain, may or may not be linear. The analysis continues for the four characteristic months of 2013, respectively t...
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doaj-dc122ab8c90c418cad8dfe6e6e84f2f22021-09-06T19:40:24ZengSciendoJournal of Applied Engineering Sciences2247-37692284-71972015-05-01519110010.1515/jaes-2015-0012Mathematical Modelling Of The Bridges Structural Monitoring IIRădulescu G.M.T.0Rădulescu A.T.G.1Rădulescu M.V.G.2Naş Sanda3Technical University of Cluj Napoca, Faculty of Civil Engineering, Department of Terrestrial Measurement and Cadastre, 25 G. Baritiu St., 400027 Cluj-Napoca, RomaniaTechnical University of Cluj Napoca, Faculty of Civil Engineering, Department of Terrestrial Measurement and Cadastre, 25 G. Baritiu St., 400027 Cluj-Napoca, RomaniaTechnical University of Cluj Napoca, Faculty of Civil Engineering, Department of Terrestrial Measurement and Cadastre, 25 G. Baritiu St., 400027 Cluj-Napoca, RomaniaTechnical University of Cluj Napoca, Faculty of Civil Engineering, Department of Terrestrial Measurement and Cadastre, 25 G. Baritiu St., 400027 Cluj-Napoca, RomaniaWe have seen in the previous paper that in the case of resistance elements made of steel, at least in this case study, the structure’s response to strains, in this case sunshine, is uncertain, may or may not be linear. The analysis continues for the four characteristic months of 2013, respectively the second month (February), the fifth (May), the eighth (August) and the event (November), covering the four seasons and approximately the entire range of temperatures to which the resistance elements of the bridge are subject to along a calendar year - case study Incheon Grand Bridge, Seoul, South Korea. The number of data pairs recorded, as we have noted, every 15 minutes, is initially 11,616, being difficult to process. Some software (e.g. Table Curve 2D) can work with a maximum of 3000 data pairs. In what follows we will examine the behaviour of a reinforced concrete element of the North Bridge Gap front line and we will build a mathematical model of its behaviour to sunshine, from the input data, one recording every hours, thus reducing the number of measurements to 2904. The aim is to obtain a mathematical model with a correlation coefficient above 0.9, which is also verified and validated. This model will allow us to calculate the expected position of the sensor mounted on the resistance element for a certain temperature, the degree of confidence of the result, the interval of residual values. Because the history of the evolution of temperatures for each moment analyzed is different it produces different results, but ones that fit the specified regressive mathematical model.https://doi.org/10.1515/jaes-2015-0012incheon grand bridgestructural health monitoringmathematical modelsensorssteel structural element |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Rădulescu G.M.T. Rădulescu A.T.G. Rădulescu M.V.G. Naş Sanda |
spellingShingle |
Rădulescu G.M.T. Rădulescu A.T.G. Rădulescu M.V.G. Naş Sanda Mathematical Modelling Of The Bridges Structural Monitoring II Journal of Applied Engineering Sciences incheon grand bridge structural health monitoring mathematical model sensors steel structural element |
author_facet |
Rădulescu G.M.T. Rădulescu A.T.G. Rădulescu M.V.G. Naş Sanda |
author_sort |
Rădulescu G.M.T. |
title |
Mathematical Modelling Of The Bridges Structural Monitoring II |
title_short |
Mathematical Modelling Of The Bridges Structural Monitoring II |
title_full |
Mathematical Modelling Of The Bridges Structural Monitoring II |
title_fullStr |
Mathematical Modelling Of The Bridges Structural Monitoring II |
title_full_unstemmed |
Mathematical Modelling Of The Bridges Structural Monitoring II |
title_sort |
mathematical modelling of the bridges structural monitoring ii |
publisher |
Sciendo |
series |
Journal of Applied Engineering Sciences |
issn |
2247-3769 2284-7197 |
publishDate |
2015-05-01 |
description |
We have seen in the previous paper that in the case of resistance elements made of steel, at least in this case study, the structure’s response to strains, in this case sunshine, is uncertain, may or may not be linear. The analysis continues for the four characteristic months of 2013, respectively the second month (February), the fifth (May), the eighth (August) and the event (November), covering the four seasons and approximately the entire range of temperatures to which the resistance elements of the bridge are subject to along a calendar year - case study Incheon Grand Bridge, Seoul, South Korea. The number of data pairs recorded, as we have noted, every 15 minutes, is initially 11,616, being difficult to process. Some software (e.g. Table Curve 2D) can work with a maximum of 3000 data pairs. In what follows we will examine the behaviour of a reinforced concrete element of the North Bridge Gap front line and we will build a mathematical model of its behaviour to sunshine, from the input data, one recording every hours, thus reducing the number of measurements to 2904. The aim is to obtain a mathematical model with a correlation coefficient above 0.9, which is also verified and validated. This model will allow us to calculate the expected position of the sensor mounted on the resistance element for a certain temperature, the degree of confidence of the result, the interval of residual values. Because the history of the evolution of temperatures for each moment analyzed is different it produces different results, but ones that fit the specified regressive mathematical model. |
topic |
incheon grand bridge structural health monitoring mathematical model sensors steel structural element |
url |
https://doi.org/10.1515/jaes-2015-0012 |
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