The reliability of the support zone of beams formed with the use of ST models
Lidia Buda-Ożóg
Department of Building Structures; Faculty of Civil and Environmental Engineering; Rzeszow University of Technology (Poland)
https://orcid.org/0000-0002-1205-1345
Abstract
The following paper presents the analysis of the reliability assessment of a reinforced concrete beam whose shear zone was formed with the use of various truss models. Model 1 is a truss model that was generated using topological optimization. Model 2 is an intuitive model with vertical, tension bars which represent reinforcement in the shear zone by means of stirrups. Model 3 is a statically indeterminate truss. The conducted analysis of reliability of a support node formed with the use of three substitute trusses of varied topology shows that statically determinate models produce lower structural reliability than statically indeterminate models and thus the optimization of ST models should be considered on multi-criteria basis with the aim of obtaining models that are characterized by optimum stiffness and maximum reliability.
Keywords:
reliability, ST models, beam, optimization, concrete, structural designReferences
Schlaich J., Schafer K. The Design of Structural Concrete. IABSE Workshop, New Delhi, 1993.
Google Scholar
Starosolski W., Konstrukcje żelbetowe według Eurokodu 2 i norm powiązanych, tom 3, PWN, Warszawa 2012.
Google Scholar
Urban T., Przykłady projektowania żelbetowych wsporników, Politechnika Łódzka, Łódź 2011.
Google Scholar
Knauff M., Obliczanie konstrukcji żelbetowych według Eurokodu 2, PWN , Warszawa 2012.
Google Scholar
ENV-1992-1-1:1991: Eurocode 2: Design of Concrete Structures. Part 1-1.
Google Scholar
PN-EN-1992-1-1:2008/NA:2010: Eurokod 2: Projektowanie konstrukcji z betonu . Część 1-1:Reguły ogólne i reguły dla budynków.
Google Scholar
Woliński Sz., Kryterium wyboru modeli analogii kratownicowej ST w projektowaniu elementów żelbetowych, Inżynieria i Budownictwo, Nr 9/2012, str. 494-497.
Google Scholar
J. K. Guest, J. H. Prévost, T. Belytschko: Achieving minimum length scale in topology optimization using nodal design variables and projection functions. International Journal for Numerical Methods in Engineering, 2004; 61:238–254.
DOI: https://doi.org/10.1002/nme.1064
Google Scholar
Żukowski S., Ocena bezpieczeństwa płaskich konstrukcji prętowych w aspekcie teorii przystosowania. OficynaWydawniczaPolitechnkiWrocławskiej, Wrocław 2006.
Google Scholar
Nowak A.S, Collins K.R: Reliability of Structures. McGraw-Hill HigherEducation, 2000.
Google Scholar
Authors
Lidia Buda-OżógDepartment of Building Structures; Faculty of Civil and Environmental Engineering; Rzeszow University of Technology Poland
https://orcid.org/0000-0002-1205-1345
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