Improved finite element modelling of a cable-stayed bridge through systematic manual tuning

Daniell, Wendy E.; Macdonald, John H G

doi:10.1016/j.engstruct.2006.05.003

Cited by 45 publications

(15 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Many bridges throughout in the world have been installed with structural health-monitoring systems to monitor the strains, acceleration and frequency and identify the structural performance and damages [ 1 , 2 , 3 ]. Moreover, the data are also applied to update the Finite Element Model (FEM) of bridges, and then the numerical results agree well with the field-measured ones [ 4 , 5 , 6 ]. With an updated FE model, the response and performance of a bridge can be predicted well to evaluate its structural health conditions for safe operation [ 7 , 8 , 9 ].…”

Section: Introductionmentioning

confidence: 80%

Study on Finite Element Model Updating in Highway Bridge Static Loading Test Using Spatially-Distributed Optical Fiber Sensors

Chen

et al. 2017

Sensors

View full text Add to dashboard Cite

A finite model updating method that combines dynamic-static long-gauge strain responses is proposed for highway bridge static loading tests. For this method, the objective function consisting of static long-gauge stains and the first order modal macro-strain parameter (frequency) is established, wherein the local bending stiffness, density and boundary conditions of the structures are selected as the design variables. The relationship between the macro-strain and local element stiffness was studied first. It is revealed that the macro-strain is inversely proportional to the local stiffness covered by the long-gauge strain sensor. This corresponding relation is important for the modification of the local stiffness based on the macro-strain. The local and global parameters can be simultaneously updated. Then, a series of numerical simulation and experiments were conducted to verify the effectiveness of the proposed method. The results show that the static deformation, macro-strain and macro-strain modal can be predicted well by using the proposed updating model.

show abstract

Section: Introductionmentioning

confidence: 80%

Study on Finite Element Model Updating in Highway Bridge Static Loading Test Using Spatially-Distributed Optical Fiber Sensors

Chen

et al. 2017

Sensors

View full text Add to dashboard Cite

show abstract

“…Modelling the structural complexities of cable-stayed bridges, such as tower movements, support conditions and cable pretensions, is applicable through the FE method. In recent years, a variety of studies have been presented on FE modelling of cable-stayed bridges (Abdel-Ghaffar and Nazmy 1991; Wilson and Gravelle 1991;Zhu, Xiang, and Xu 2000;Zhang, Chang, and Chang 2001;Daniell and Macdonald 2007;Benedettini and Gentile 2011). However, the verification of bridge responses with field test results indicates that most of the priori FE models cannot accurately represent the real bridge conditions.…”

Section: Introductionmentioning

confidence: 96%

Three-dimensional finite element modelling of long-span cable-stayed bridges

Asgari

Osman

Adnan

2013

The IES Journal Part A: Civil & Structural Engineering

View full text Add to dashboard Cite

Finite element (FE) modelling is a prominent way to simulate both static and dynamic characteristics of cable-stayed bridges to understand their structural complexities. Many initial FE models have not been successful in the analysis of the structural behaviour of cable-stayed bridges. This paper presents the details of an updated FE modelling procedure for long-span cable-stayed bridges. The design information of Tatara Bridge with an 850-m main span is considered for numerical studies. The dynamic properties of the FE model, including mode shapes and natural frequencies, are compared with field vibration test results to validate the presented modelling process. Sensitivity analysis of structural parameters is also applied to update effective parameters and understand the structural behaviour of the bridge. The new and beneficial aspects presented in this paper regarding FE modelling procedure and finding effective material and structural parameters will be useful for future design and analysis of cable-stayed bridges.

show abstract

“…These methods first identify the uncertain parameters through a comprehensive sensitivity analysis and systematically change the parameters to minimise the discrepancies between FE model and test data often conducted using an iterative procedure. Several successful case studies can be found in literature using automated sensitivity based model calibration methods predominantly in flexible structures such as footbridges, long-span highway bridges, bridge towers and tall buildings [13][14][15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Toward effective structural identification of medium-rise building structures

Nguyễn

Kodikara

Thambiratnam

2017

J Civil Struct Health Monit

View full text Add to dashboard Cite

Structural Identification (St-Id) is the process of constructing and calibrating a physics-based model based on the measured static and/or dynamic response of the structure. Over the last two decades, although the St-Id methods have become increasingly popular amongst civilstructural engineering communities, most complete and successful applications are often found with flexible structures such as long-span bridges and towers. Very few comprehensive studies were reported on building structures, especially those with medium-rise characteristics which are often associated with complicated analytical modelling and different degrees of parameter uncertainties. To address this need, this paper presents an in-depth study on St-Id of a benchmark medium-rise building firstly demonstrating the importance of developing appropriate initial analytical models that can be used for the automated model calibration techniques. Then, a novel parametric study based sensitivity analysis approach is introduced to identify tuning parameters as well as their appropriate ranges to maximise the correlation of the calibrated model whilst preserving the physical relevance of the calibrated model. Modal data of the first few modes measured under ambient vibration conditions are used in this study.

show abstract

Improved finite element modelling of a cable-stayed bridge through systematic manual tuning

Cited by 45 publications

References 19 publications

Study on Finite Element Model Updating in Highway Bridge Static Loading Test Using Spatially-Distributed Optical Fiber Sensors

Study on Finite Element Model Updating in Highway Bridge Static Loading Test Using Spatially-Distributed Optical Fiber Sensors

Three-dimensional finite element modelling of long-span cable-stayed bridges

Toward effective structural identification of medium-rise building structures

Contact Info

Product

Resources

About