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JOURNAL OF FACULTY OF CIVIL ENGINEERING 22, 2013.y., pp. 67-77


ANALYSIS OF ULTIMATE RESISTANCE OF LONG REINFORCED CONCRETE FOLDED PLATE STRUCTURE
 
DOI: 10.14415/zbornikGFS22.006
UDC: 624.074 : 624.046
CC-BY-SA 4.0 license
Author : Goleš, Danica; Milašinović, Dragan; Živanov, Žarko
 
 Summary:
 The reinforced concrete 30m long folded plate structure is designed on the basis of internal forces calculated by finite strip method assuming a linear behavior of the structure. The curve of fracture of characteristic cross-sections is shown on diagrams of interaction, which are drawn for working diagrams of concrete and steel according to Eurocode 2 and rheological-dynamical analogy. By successive increase of load, using the harmonic coupled finite strip method, the load at which the fracture of characteristic cross sections occurs is determined. Comparison of global safety factors of characteristic cross-sections obtained by the linear and geometric nonlinear analysis shows that, in most cases, the linear analysis gives results on the safe side compared to the results of the analysis based on the assumption of geometric nonlinear structural behavior. However, this conclusion can not be generalized because failure of some cross-sections of such dimensioned structure, according to nonlinear analysis, occurs under load that is only 30% higher than the service load.
 
 Keywords:
 Reinforced concrete, folded plate, finite strip method, the global safety factors.