Πλοήγηση ανά Θέμα "Structural analysis"
Αποτελέσματα 21-31 από 31
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Parametric analysis of axially loaded RHS gap K-joints by means of 2-D and 3-D F.E. models
(2003)In the present paper the behaviour of steel structural RHS gap K-joints under static loading is studied by applying the Finite Element Method. The analysis is performed by the development of both 2-D and 3-D models of gap ... -
Probabilistic damage identification of a designed 9-story building using modal data in the presence of modeling errors
(2017)Validity and accuracy of model based identification techniques such as linear finite element (FE) model updating are sensitive to modeling errors. Models used for the design and performance assessment of civil structures ... -
Quantification of aleatory uncertainty in modal updating problems using a new hierarchical Bayesian framework
(2019)Identification of structural damage requires reliable assessments of damage-sensitive quantities, including natural frequencies, mode shapes, and damping ratios. Lack of knowledge about the correct value of these parameters ... -
Reliability sensitivity analysis of stochastic finite element models
(2015)This contribution presents a scheme for integrating a model reduction technique into a simulation-based method for reliability sensitivity analysis of a class of medium/large nonlinear finite element models under stochastic ... -
Robust and Reliability-Based Structural Topology Optimization Using a Continuous Adjoint Method
(2016)A unified framework for robust and reliability-based structural topology optimization, considering structural model and loading uncertainties, is presented using a continuous adjoint formulation. The topology optimization ... -
SCFs and fatigue design of multi-planar tubular DT-joints
(2001)The present paper concerns the fatigue design of multi-planar welded tubular DT (double T) steel connections. Stress Concentration Factors (SCFs) are used for the calculation of the hot-spot stress of the joint and, ... -
Sequential importance sampling for structural reliability analysis
(2016)This paper proposes the application of sequential importance sampling (SIS) to the estimation of the probability of failure in structural reliability. SIS was developed originally in the statistical community for exploring ... -
A simple and efficient model for seismic response and low-cycle fatigue assessment of uplifting liquid storage tanks
(2018)Ground-supported unanchored liquid-storage cylindrical tanks, when subjected to strong seismic loading may exhibit uplifting of their bottom plate, which may have significant effects on their dynamic behavior and structural ... -
Structural damage identification using a Bayesian model selection framework
(2010)A Bayesian model class selection and updating framework is used for identifying the location and size of damage in a structure utilizing measured dynamic data. The framework consists of a two-level approach. At the first ... -
Study of the influence of seismic action on the construction cost of the load-bearing structure of a ten-storey R/C building
(2021)Greece is divided into three seismic hazard zones ZI, ZII, ZIII. In the present research work, the same building in the three seismic zones of Greece is modeled, analysed and dimensioned and then the construction cost of ... -
Treatment of unidentifiability in structural model updating
(2000)The present study addresses the issues of non-uniqueness and unidentifiability arising in structural model updating. A Bayesian probabilistic frame-work is used for model updating which properly handles the uncertainties ...