Login for students

Login for employees

Publication detail

A stochastic model for the capacity estimation of non-seismically designed beam-column joints
Authors: Yurdakul Özgür | Tunaboyu Onur | Řoutil Ladislav | Avsar Ozgur
Year: 2018
Type of publication: článek ve sborníku
Name of source: Proceedings of the 12th fib International PhD Symposium in Civil Engineering
Publisher name: České vysoké učení technické v Praze
Place: Praha
Page from-to: 813-819
Titles:
Language Name Abstract Keywords
cze A stochastic model for the capacity estimation of non-seismically designed beam-column joints An analytical model based on nonlinear fracture mechanics was employed to evaluate the shear capacity of a substandard beam-column joint retrofitted by externally applied post-tensioned bars. The strength of the reference specimen was predicted as the capacity of plain concrete under tension with microcracks in the fracture process zone smeared over a band - i.e. crack band theory. Crack minimization effects in the specimens retrofitted by post-tensioned bars were considered by strain energy stored in the bars per unit fracture surface area. Due to the inherent uncertainty in material constitutive laws, the analytical model was evolved to a stochastic level to propose a more advanced model for estimating the capacity. It is found that the experimental results were within the prominent range of Probability Density Functions (i.e. mean ± one standard deviation) of the estimated joint tensile stress. beam-column joint; shear capacity; externally applied post-tensioned bars; nonlinear fracture mechanics; stochastic model
eng A stochastic model for the capacity estimation of non-seismically designed beam-column joints An analytical model based on nonlinear fracture mechanics was employed to evaluate the shear capacity of a substandard beam-column joint retrofitted by externally applied post-tensioned bars. The strength of the reference specimen was predicted as the capacity of plain concrete under tension with microcracks in the fracture process zone smeared over a band - i.e. crack band theory. Crack minimization effects in the specimens retrofitted by post-tensioned bars were considered by strain energy stored in the bars per unit fracture surface area. Due to the inherent uncertainty in material constitutive laws, the analytical model was evolved to a stochastic level to propose a more advanced model for estimating the capacity. It is found that the experimental results were within the prominent range of Probability Density Functions (i.e. mean ± one standard deviation) of the estimated joint tensile stress. beam-column joint; shear capacity; externally applied post-tensioned bars; nonlinear fracture mechanics; stochastic model

Departments

Other Parts

Map

en.mapy.cz

Services

Popular Links

© 2023 University of Pardubice, Studentská 95, 532 10 Pardubice 2
Phone: +420 466 036 111, 466 036 112, 466 036 113
Webmaster, RSS
Data box ID: f5vj9hu
Accessibility Statement
CC BY-NC-ND 4.0Creative CommonsAttributionNonCommercialNoDerivatives