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Zeitschriftenartikel:

R. Lackner, H.A. Mang:
"Scale Transition in Steel-Concrete Interaction. II: Applications";
Journal of Engineering Mechanics (ASCE), 129 (2003), 4; S. 403 - 413.



Kurzfassung englisch:
The proposed mode of consideration of the steel-concrete interaction (Part I) is applied to real-life engineering structures. Two structures recently investigated numerically at Vienna University of Technology are considered: (a) the reinforced concrete (RC) cooling tower III Ptolemais SES (Greece) and (b) a part of the shotcrete tunnel lining installed at the Lainzer tunnel (Austria). In both examples, the uniaxial fracture criterion used in Part I is replaced by the maximum stress (Rankine) criterion. Together with the Drucker-Prager criterion, which is used for the simulation of compressive failure of concrete/shotcrete, it defines the space of admissible stress states in the framework of multi-surface plasticity. For the simulation of early-age fracture of shotcrete, consideration of the steel-concrete interaction presented in Part I is extended towards young shotcrete. Similar to the benchmark problem investigated in Part I of the paper, several analyses with different degrees of consideration of the steel-concrete interaction are performed. The obtained results give insight into the influence of the steel-concrete interaction on the load-carrying behavior of the investigated structures.

Keywords: cooling tower, reinforced concrete, NATM, shotcrete, ultimate load, New Austrian Tunneling Method, hybrid method, tunneling, level of loading, collapse, early age


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