Calibration and Bias-Correction of the Steel Offshore Jacket Platform Models Using Experimental Data

Seismic Analysis of an Offshore Structure in Persian Gulf Utilizing a Physical Model

“…Seismic performance of these structures, which is based on their numerical analysis, not only requires a realistic nonlinear structural model, but also needs uncertainties consideration. Uncertainties can be categorized to three distinct factors related to the computer model: (i) inaccuracy in mathematical equations solving method (numerical uncertainty), (ii) imprecision in model parameters definition (parameter uncertainty), and (iii) inexactness and incompleteness in engineering principles modeling, (structural uncertainty) [1]. Any computer based engineering problem is a mixture of mentioned three factors which no distinguished boundary exists among them [1].…”

“…Uncertainties can be categorized to three distinct factors related to the computer model: (i) inaccuracy in mathematical equations solving method (numerical uncertainty), (ii) imprecision in model parameters definition (parameter uncertainty), and (iii) inexactness and incompleteness in engineering principles modeling, (structural uncertainty) [1]. Any computer based engineering problem is a mixture of mentioned three factors which no distinguished boundary exists among them [1]. Lack of data of the may cause high structural uncertainties which can reduce the structure effectiveness to endure extreme environmental loadings.…”

“…In practical cases, verified models should be simultaneously gain based on numerical and experimental approaches. High complexity in marine structures may cause a significant discrepancy between the numerical and experimental data [1]. Discrepancy reduction can be performed through numerical model updating which is one of the most demanded applications in laboratory route and model vibration testing process of the structures [2].…”