Analysis of Seismic Action on the Tie Rod System in Historic Buildings Using Finite Element Model Updating

Abstract

Historic buildings have a high architectural value and their maintenance, repair and rehabilitation require a special approach. This approach is mainly based on the buildings’ performance under non-destructive tests such as operational modal analysis (OMA). Under extreme loads, such as earthquakes, these buildings require representative numerical models to simulate their expected response. In historic buildings, tie rods transfer axial loads and are typically used to balance horizontal trust due to static and dynamic loads associated with seismic actions. It is very important to determine the possibility of exceeding their load-bearing capacity under extreme loads, such as an earthquake. In this context, this paper presents an approach for the analysis of seismic action on the tie rod system in a historic building. The analysis was performed by combining the on-site experimental testing and the finite element model updating (FEMU) of the local models of tie rods and the global model of the structure. It was shown that the combination of analyzing local and global structural models, experimental on-site testing and FEMU is a viable solution for assessment of historic buildings’ load bearing capacity.

Time-History Analyses on the Effect of Partial Infill Walls on the Seismic Response of a Reinforced Concrete Frame Structure

“…Numerical simulations, on the other hand, albeit being very useful, are sensitive in terms of material properties, geometry, boundary / support conditions and applied loading scenarios correct definition. Therefore, additional care is required in the pre-processing stage of the analysis when the numerical model is defined, especially in case of complex structures with geometries that require attention, various IOP Publishing doi:10.1088/1757-899X/1304/1/012001 2 materials being used and loading scenarios that have to be applied in a certain order [13]. Although numerical simulations offer the advantage of varying a large number of parameters [14], they do, however, need experimental validation [15][16][17].…”

Enhancing Anomaly Detection for Cultural Heritage via Long Short-Term Memory with Attention Mechanism

“…Current preventive strategies primarily revolve around a meticulous analysis of the root causes of degradation. This involves the construction of finite element stress analysis models grounded in the building's framework and executing simulation experiments to validate and refine these models [2,3]. Subsequently, warning thresholds were derived from the model analysis results.…”

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