Simplified mechanical models for critical regions in RC frame systems

Caprili, Silvia; Mattei, Francesca; Salvatore, Walter

doi:10.1016/j.engstruct.2021.113677

Cited by 3 publications

(2 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Digital twins development for earthquake‐affected buildings with highly nonlinear pinched responses, as typically seen in reinforced concrete (RC) framed structures, 61–64 requires a force‐deformation hysteretic model to efficiently simulate key structural damage mechanisms, such as stiffness and strength degradation and pinching 61 . This model must be as simple as possible for maximum robustness, while its physical parameters must be theoretically and practically identifiable using HLA‐SHM results 65–67 …”

Section: Methodsmentioning

confidence: 99%

Experimental verification for a mechanics‐based digital cloning method predicting structural performance and damage

Rabiepour

Zhou

Chase

2023

Earthq Engng Struct Dyn

View full text Add to dashboard Cite

This paper introduces a novel digital twin modelling framework combining accurate structural health monitoring (SHM) results delivered by hysteresis loop analysis (HLA) with the basis function modelling to predict structural damage and responses of earthquake-affected structures under future seismic events. The measured data sets of a 12-storey 1/10 scale reinforced concrete (RC) structure shaken by three damaging base excitations (Events 1, 2 and 3) using a shake table has been employed to validate the performance of the introduced predictive framework. The results show that the digital twin created under the first base excitation (Event 1) predicts the inter-storey displacement responses of the test structure due to the second and third excitations (Events 2 and 3) with an average correlation coefficient of ∼0.88 and ∼0.94, respectively. The inter-storey drift ratio (IDR) values predicted by the digital twin also result in the same seismic performance delivered by the measured values, making the introduced framework a promising tool for assessing structural collapse and subsequent financial risk using incremental dynamic analysis (IDA). Moreover, the maximum difference of 5% between the identified and predicted stiffness values illustrates the robust and accurate performance of the proposed framework in diagnosing structural damage in highly nonlinear and damaged structures.

show abstract

Section: Methodsmentioning

confidence: 99%

Experimental verification for a mechanics‐based digital cloning method predicting structural performance and damage

Rabiepour

Zhou

Chase

2023

Earthq Engng Struct Dyn

View full text Add to dashboard Cite

show abstract

“…To develop a digital twin for an earthquake-damaged building with highly pinched responses typically seen in RC frame structures, [46][47][48][49] a force-deformation hysteretic model is an essential first step. This model must efficiently simulate major nonlinear structural damage and deterioration mechanisms, such as pinching, stiffness degradation, and strength degradation.…”

Section: Methodsmentioning

confidence: 99%

Structural performance and damage prediction using a novel digital cloning technique

Rabiepour

Zhou

Chase

2023

Structural Health Monitoring

View full text Add to dashboard Cite

This paper presents a novel, mechanics-based framework to create digital twins for earthquake-affected pinched structures, like reinforced concrete framed buildings. It uses robust and accurate structural health monitoring (SHM) results delivered by the hysteresis loop analysis method as an input to create digital twin models to predict nonlinear dynamic responses of previously damaged structures under potential future seismic events. Method validation is implemented using unique real-world data from the Bank of New Zealand (BNZ) building in Wellington, New Zealand, which experienced severe structural damage due to three earthquakes (Events 1, 2, and 3) between 2013 and 2016.Results show the digital twin derived from the SHM results of Event 1 can predict the inter-story displacement of the BNZ building for Events 2 and 3 with average correlation coefficients of ∼0.95 and ∼0.97 between predicted and measured responses, respectively. Moreover, the maximum difference between the measured and predicted peak values of inter-story displacements was 13 mm, a negligible difference in inter-story drift ratio (IDR). These results were accurate and consistent for all stories. Finally, the accuracy of this framework in capturing IDR values makes it a promising tool for assessing potential future structural collapse risk and its consequent financial risks using well-known incremental dynamic analysis methods.

show abstract

Corrosion effects on the dissipative performance of critical regions of RC frame systems

Caprili,

Mattei,

Salvatore

2024

Engineering Structures

View full text Add to dashboard Cite

Simplified mechanical models for critical regions in RC frame systems

Cited by 3 publications

References 26 publications

Experimental verification for a mechanics‐based digital cloning method predicting structural performance and damage

Experimental verification for a mechanics‐based digital cloning method predicting structural performance and damage

Structural performance and damage prediction using a novel digital cloning technique

Corrosion effects on the dissipative performance of critical regions of RC frame systems

Contact Info

Product

Resources

About