Browsing by Author "Lei, Jun"

Now showing items 1-13 of 13

    • A new model to analyze corrugated steel web bridges 

      Lei, Jun; Xu, Dong; Turmo Coderque, José (Tongji University, 2017)
      Conference report
      Restricted access - publisher's policy
      The wide application of corrugated steel web bridges has led to a rising demand on accurate tools to analyze this type of structures. Current computational models for these analyses are mainly related to those models using ...

    • 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
      Restricted access - publisher's policy
      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. ...

    • 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
      Restricted access - publisher's policy
      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 ...

    • 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
      Restricted access - publisher's policy

    • 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
      Restricted access - publisher's policy

    • Robust static structural system identification using rotations 

      Lei, Jun; Lozano Galant, José Antonio; Xu, Dong; Zhang, Feng; Turmo Coderque, José (Multidisciplinary Digital Publishing Institute, 2021-10)
      Article
      Open Access
      Deflections are commonly measured in the static structural system identification of structures. Comparatively less attention has been paid to the possibility of measuring rotations for structural system identification ...

    • Simulating composite bridges with corrugated steel webs using spatial grid model 

      Xu, Dong; Lei, Jun; Turmo Coderque, José (International Association for Bridge and Structural Engineers (IABSE), 2017)
      Conference report
      Restricted access - publisher's policy
      This paper proposes a method for simulating the structural response of composite bridges with corrugated steel webs. Numerical modelling methods with various model dimensionalities have been widely used in the simulation ...

    • Static structural system identification for beam-like structures using compatibility conditions 

      Lei, Jun; Xu, Dong; Turmo Coderque, José (2018-01)
      Article
      Open Access
      Due to the inevitable noise existing in the measured responses, structural system identification is often a challenging task in terms of the accuracy of the estimations. Structural system identification by the observability ...

    • Static structural system identification using observability method 

      Lei, Jun (Universitat Politècnica de Catalunya, 2018-08-14)
      Doctoral thesis
      Open Access
      Covenantee:   Tong ji da xue
      During the construction and operation stages of structures, various factors lead to irreversible degradation that could affect the normal use and the public safety of these structures. In recent years, it has been common ...

    • Structural system identification by measurement error-minimization observability method using multiple static loading cases 

      Lei, Jun; Lozano Galant, José Antonio; Xu, Dong; Turmo Coderque, José (Techno press, 2022-10)
      Article
      Restricted access - publisher's policy
      Evaluating the current condition of existing structures is of primary importance for economic and safety reasons. This can be addressed by Structural System Identification (SSI). A reliable static SSI depends on well-designed ...

    • Structural system identification by measurement error-minimizing observability method 

      Lei, Jun; Lozano Galant, José Antonio; Xu, Dong; Turmo Coderque, José (John Wiley & sons, 2019-10)
      Article
      Open Access
      This paper proposes a method for the finite element model updating using static load tests under the framework of observability analysis. Previous works included measurement errors in the coefficient matrix of the observability ...

    • Structural system identification of pedestrian bridges by observability method 

      Lei, Jun; Lozano Galant, José Antonio; Nogal Macho, María; Xu, Dong; Turmo Coderque, José (Technishe Universität Berlin, 2017)
      Conference lecture
      Restricted access - publisher's policy
      The condition assessment of pedestrian bridges might be overlooked due to the small scale of these structures. A short list of accidents is provided to justify the necessity of condition assessment on pedestrian bridges. ...