Now showing items 1-20 of 24

    • A graphical method for measurement set selection in structural system identification with observability techniques 

      Lozano Galant, José Antonio; Nogal Macho, María; Castillo Ron, Enrique; Turmo Coderque, José (CRC Press, 2016)
      Conference report
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      The unknown properties of a structure can be identified from different measurement sets. The selection of an adequate set is a key pretest decision in any Structural System Identification (SSI) method. Among the different ...
    • A numerical approach for structural system ldentification by observability techniques 

      Lozano Galant, José Antonio; Nogal Macho, María; LEI, Jun; Xu, Dong; Turmo Coderque, José (International Association for Bridge and Structural Engineers (IABSE), 2016)
      Conference report
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      Observability techniques enable the structural system identification of static structures from a symbolic approach. The main advantage of this method is its deep mathematical foundation that enables the definition of ...
    • A two-stage static structural system identification by observability method 

      Jun, Lei; Nogal Macho, María; Lozano Galant, José Antonio; Xu, Dong; Turmo Coderque, José (CRC Press, 2018)
      Conference report
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      Structural system identification (SSI) is a powerful tool for the assessment of the current condition of structures in operation. The basic assumption is that the deterioration of structures is reflected in the change of ...
    • Analysis of measurement and simulation errors in structural system identification by observability techniques 

      Jun, LEI; Lozano Galant, José Antonio; Nogal Macho, María; Xu, Dong; Turmo Coderque, José (2017-06)
      Article
      Open Access
      During the process of structural system identification, errors are unavoidable. This paper analyzes the effects of measurement and simulation errors in structural system identification based on observability techniques. ...
    • Aplicación de métodos matemáticos a la identificación de sistemas estructurales 

      Lozano Galant, José Antonio; Enrique, Castillo; Nogal Macho, María; Turmo Coderque, José (2017)
      Conference report
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      Tradicionalmente, el comportamiento de las estructuras se suele modelizar mediante modelos numéricos con propiedades mecánicas conocidas. Sin embargo, los valores reales de las estructuras construidas raramente coinciden ...
    • Comparison among different structural system identification methods 

      Nogal Macho, María; Lozano Galant, José Antonio; Turmo Coderque, José (2016)
      Conference report
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      The observability techniques have been proposed to deal with structural system identification under static loading tests. Up to now, this method has only been analyzed from a symbolical point of view. Despite the elegance ...
    • Condition assessment using structural system identification 

      Lei, Jun; Lozano Galant, José Antonio; Nogal Macho, María; Xu, Dong; Turmo Coderque, José (Tongji University, 2017)
      Conference report
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      The accumulation of progressive deterioration of structures might lead to the failure of structures. In order to avoid potential accidents, it is important to carry out condition assessment using structural system ...
    • Constrained observability method in static structural system identification 

      Lei, Jun; Nogal Macho, María; Lozano Galant, José Antonio; Xu, Dong; Turmo Coderque, José (2018-01)
      Article
      Open Access
      Identifiability of parameters in structural system identification (SSI) is of primary importance in any SSI method. It depends on the number and the location of the measurements, which is linked with sensor configuration. ...
    • Dealing with the peculiarities of the structural system identification of cable-stayed bridges by observability techniques 

      Lozano Galant, José Antonio; Nogal Macho, María; Enrique, Castillo; Turmo Coderque, José (2015)
      Conference report
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      Traditionally, the structural response of a bridge is modelled by simplistic physics-based models in which the mechanical and geometrical properties are assumed as known. Nevertheless, this is not the case in most actual ...
    • Detección de daños en estructuras mediante técnicas de observabilidad 

      Lozano Galant, José Antonio; Nogal Macho, María; Castillo Ron, Enrique; Turmo Coderque, José; Payá Zaforteza, Ignacio Javier (Asociacion Científica del Hormigón Estructural (ACHE), 2014)
      Conference report
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      En este artículo se presenta la aplicación de un nuevo método para la detección de daños en estructuras a partir de su respuesta estática. Este método aplica las técnicas de observabilidad para resolver el sistema de ...
    • Distribution planning in a weather-dependent scenario with stochastic travel times: a simheuristics approach 

      Estrada-Moreno, Alejandro; Serrat Piè, Carles; Nogal Macho, María; Cavero-Lázaro, Marta; Juan Pérez, Ángel Alejandro (IEEE Press, 2018)
      Conference report
      Open Access
      In real-life logistics, distribution plans might be affected by weather conditions (rain, snow, and fog), since they might have a significant effect on traveling times and, therefore, on total distribution costs. In this ...
    • Distribution planning in a weather-dependent scenario with stochastic travel times: a simheuristics approach 

      Estrada-Moreno, Alejandro; Serrat Piè, Carles; Nogal Macho, María; Cavero-Lázaro, Marta; Juan Pérez, Ángel Alejandro (2019-02-04)
      Article
      Open Access
      In real-life logistics, distribution plans might be affected by weather conditions (rain, snow, and fog), since they might have a significant effect on traveling times and, therefore, on total distribution costs. In this ...
    • Error analysis of structural system identification by observability method 

      Lei, Jun; Xu, Dong; Lozano Galant, José Antonio; Nogal Macho, María; Turmo Coderque, José (International Association for Bridge and Structural Engineers (IABSE), 2017)
      Conference lecture
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      In structural system identification, measurement errors and simulation errors are closely related with the accuracy of the identification method. In this paper, the effects of these two types of errors on structural system ...
    • Evaluación estructural de puentes existentes: técnicas de observabilidad 

      Lozano Galant, José Antonio; Nogal Macho, María; Jun, Lei; Xu, Dong; Turmo Coderque, José; Ramos Schneider, Gonzalo (Asociación Chilena de Carreteras y Transporte (ACCT), 2017)
      Conference report
      Open Access
      Cada vez es más importante el parque de puentes y estructuras ya construidas que es necesario mantener y evaluar su estado con el paso del tiempo, o tras haber sufrido alguna situación accidental, como puede ser un sismo. ...
    • Identificación estructural numérica mediante técnicas de observabilidad 

      Lozano Galant, José Antonio; Lei, Jun; Ramos Schneider, Gonzalo; Nogal Macho, María; Xu, Dong; Turmo Coderque, José (2017)
      Conference report
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    • Impact of measurement errors in inverse analysis 

      Lei, Jun; Lozano Galant, José Antonio; Nogal Macho, María; Xu, Dong; Turmo Coderque, José (Springer, 2017)
      Conference report
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    • New tool to help decision making in civil engineering 

      Castillo Ron, Enrique; Lozano Galant, José Antonio; Nogal Macho, María; Turmo Coderque, José (2015-08)
      Article
      Open Access
      Structural collapses have indirectly produced important progress in science. The last lesson learnt from structural collapses reveals the important role of polyrational systems of equations in the Civil Engineering field, ...
    • Numerical damage identification of structures by observability techniques based on static loading tests 

      Nogal Macho, María; Lozano Galant, José Antonio; Turmo Coderque, José; Castillo Ron, Enrique (2016-09)
      Article
      Open Access
      This article proposes the application of the observability techniques to deal with damage detection in bridges from their structural response under static loading tests. Unlike previous works based on a symbolic approach ...
    • Observability method for structural system identification 

      LOZANO-GALANT, José Antonio; Castillo Ron, Enrique; Nogal Macho, María; Turmo Coderque, José (International Association for Bridge and Structural Engineers (IABSE), 2014)
      Conference report
      Restricted access - publisher's policy
      The structural response of any structure is traditionally predicted by simplistic physics-based models. In these models the mechanical and geometrical properties are assumed as known. Nevertheless, this is not the case in ...
    • Role of sensors in error propagation with the dynamic constrained observability method 

      Peng, Tian; Nogal Macho, María; Casas Rius, Joan Ramon; Turmo Coderque, José (Multidisciplinary Digital Publishing Institute (MDPI), 2021-05)
      Article
      Open Access
      The inverse problem of structural system identification is prone to ill-conditioning issues; thus, uniqueness and stability cannot be guaranteed. This issue tends to amplify the error propagation of both the epistemic and ...