ULTIMATE LIMIT STATE ASSESSMENT OF TRC SHELL STRUCTURES WITH COMBINED NORMAL AND BENDING LOADING

Author(s): Alexander Scholzen, Rostislav Chudoba, Josef Hegger
Book Title: FERRO-11 – 11th International Symposium on Ferrocement and 3rd ICTRC - International Conference on Textile Reinforced Concrete
Editor: Wolfgang Brameshuber
Print-ISBN: 978-2-35158-152-0
e-ISBN: 978-2-35158-153-7
Publisher: RILEM Publications SARL
Publication year: 2015
Pages: 159-166
Total Pages: 8
Language: English

Abstract: For the dimensioning of textile reinforced concrete (TRC) shell structures assessment rules are needed to successfully introduce the innovative composite material into engineering practice. The present paper describes a dimensioning approach for spatial TRC structures capturing the interaction between normal forces and bending moments. The admissible loading range herein is delimited by a linear approximation of the n-m interaction diagram constructed by connecting the values of tensile, compressive and bending strength. In order to validate this approximation, a test setup for combined normal and bending load has been developed. The n-m interaction diagram forms the basis for the numerical assessment of the ultimate limit state of TRC shell structures including the effect of oblique loading on the composite strength. For this purpose a numerical assessment tool has been implemented that automatically evaluates the utilization ratios of all TRC shell cross-sections for all loading cases based on linear-elastic finite-element analysis of the structure. The formulated dimensioning approach has been successfully applied for the assessment of two TRC shell structures recently realized in Aachen.

Online publication: 2015
Publication Type: full_text
Public price (Euros): 0.00