Structural Identification of a Deteriorated Reinforced Concrete Bridge

Zhou, Yun; Prader, John; Weidner, Jeffrey; Dubbs, Nathaniel C.; Moon, Franklin; Aktan, A. Emin

doi:10.1061/(asce)be.1943-5592.0000309

Cited by 16 publications

(8 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Modal analysis constitutes an important place in dynamic analysis of the damaged structures. There are researches on damaged structures for modal identification of dynamic parameters [1][2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Structural Identification of Masonry Residential Buildings Considering Wall Openings

Toydemir

Koçak

2020

Period. Polytech. Civil Eng.

View full text Add to dashboard Cite

Although one-story residential masonry structures are thought not to be vulnerable to seismic actions, many heavily damaged and/or collapsed instances of these types of structures have been observed in the past strong earthquake events. Hence, the evaluation of their safety requires much attention in terms of more precise numerical models. In-situ vibration tests together with laboratory tests on masonry specimens provide valuable information for structural parameter identification that can be used to develop accurate numerical models. These numerical models then can be used for evaluation of the response and seismic safety. While many specific methods and parameters can be adopted in numerical modeling, linear material properties of a structure are expedient in response analysis. Hence, an equation to be used to determine the homogenized linear model parameters for masonry walls with openings is proposed in this study. The equation has been developed based on the percentage of the openings on the wall. The effect of wall openings on the stiffness and the total strength of one-story masonry structures have been evaluated by using the experimental data and the calibrated finite element models. In-situ ambient vibration and material tests have been conducted on three masonry buildings with identical materials and the results from these experiments were used to verify the accuracy of the formulation.

show abstract

Section: Introductionmentioning

confidence: 99%

Structural Identification of Masonry Residential Buildings Considering Wall Openings

Toydemir

Koçak

2020

Period. Polytech. Civil Eng.

View full text Add to dashboard Cite

show abstract

“…For the purpose of evaluating and predicting the performance of existing structures, a growing interest in the use of updated FE models has been observed, especially for large civil structures such as bridges and buildings (Brownjohn & Xia, 2000;Kim, Kim, Jang, & Kim, 2012;Macdonald & Daniell, 2005;Moaveni & Behmanesh, 2012;Park, Kim, & Park, 2012;Ribeiro, Calcada, Delgado, Brehm, & Zabel, 2012;Wang, Li, & Li, 2010;Wu & Li, 2004;Zhang, Chang, & Chang, 2001;Zivanovic, Pavic, & Reynolds, 2007). For example, FE model updating-based procedures have been developed to estimate the load carrying capacity of deteriorating bridges (Brownjohn, Xia, Hao, & Xia, 2001;Ding, Hao, Xia, & Deeks, 2012;Xia & Brownjohn, 2004;Zhou et al, 2012). Researches related to damage detection for large structures have also been reported (Law, Chan, & Wu, 2001;Moaveni, He, Conte, & Restrepo, 2010;Mosquera, Smyth, & Betti, 2012;Teughels & De Roeck, 2004).…”

Section: Introductionmentioning

confidence: 99%

Candidate model construction of a cable-stayed bridge using parameterised sensitivity-based finite element model updating

Park

Kim

2014

Structure and Infrastructure Engineering

View full text Add to dashboard Cite

An efficient method for constructing multiple candidate finite element (FE) models which are consistent with the measured dynamic properties of a civil structure is presented. A parameterised sensitivity-based FE model updating method was developed to permit a feasible FE model set for the target structure to be produced. In this method, an aggregated multiobjective function, which is defined by the weighted sum of the error functions, is parameterised by its relative weighting factors. By introducing multiple parameter sets for the weighting factors, a number of optimal updated FE models are produced that permit both the natural frequency errors and mode shape errors to be simultaneously minimised. The effectiveness of the proposed method is illustrated by an example using an existing cable-stayed bridge. The findings show that error-minimised, well-distributed FE models can be obtained in terms of modal frequency errors and mode shape errors. The high quality of the candidate model sets is also verified by observations showing that the distributions of the structural parameters are consistent through each updated FE models, and the characteristic features of the target structure such as nonsymmetric mode shapes are relatively well captured.

show abstract

“…Deng and Morcous [29], Chacon and Mirambell [28], Frissen et al [21], Zhou et al [13], Johnson et al [8], Kaviani et al [12] and Ho et al (GT STRUDL Technical Papers) [42], used ANSYS [43], ABAQUS [44], TNO DIANA [45], Strand7 [46], Drain 3DX [47], Opensees [48], ADINA [49] and GT STRUDL [42], respectively, so as to numerically assess RC bridges through the use of different FE models. Commercial software that are referenced in [42][43][44][45][46][47][48][49] have the ability of using 3D FE models that incorporate damage material models.…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation of a Full-Scale Rc Bridge Through 3d Detailed Nonlinear Limit-State Simulations

Markou¹

2014

Proceedings of the 3rd South-East European Conference on Computational Mechanics (SEECCM III)

View full text Add to dashboard Cite

show abstract

Structural Identification of a Deteriorated Reinforced Concrete Bridge

Cited by 16 publications

References 15 publications

Structural Identification of Masonry Residential Buildings Considering Wall Openings

Structural Identification of Masonry Residential Buildings Considering Wall Openings

Candidate model construction of a cable-stayed bridge using parameterised sensitivity-based finite element model updating

Numerical Investigation of a Full-Scale Rc Bridge Through 3d Detailed Nonlinear Limit-State Simulations

Contact Info

Product

Resources

About