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Overall Stiffness Reduction of Cracked Reinforced Concrete Beams Due to Long Term Effects
The aim of the research described in this paper is to assess the deformation of cracked reinforced concrete beams under both short- and long-term service loading. Beams are subjected to short-time bending tests, including loading cycles with different peak values leading to concrete cracking (pre-cracking tests) and long-term tests under sustained loading. Long-term deflection appears to be much more important than the deflection due to short-term loading and leads to important permanent deformation after unloading. After 6 months under sustained loading, the overall instantaneous stiffness of all beams was substantially reduced.
Overall Stiffness Reduction of Cracked Reinforced Concrete Beams Due to Long Term Effects
The aim of the research described in this paper is to assess the deformation of cracked reinforced concrete beams under both short- and long-term service loading. Beams are subjected to short-time bending tests, including loading cycles with different peak values leading to concrete cracking (pre-cracking tests) and long-term tests under sustained loading. Long-term deflection appears to be much more important than the deflection due to short-term loading and leads to important permanent deformation after unloading. After 6 months under sustained loading, the overall instantaneous stiffness of all beams was substantially reduced.
Overall Stiffness Reduction of Cracked Reinforced Concrete Beams Due to Long Term Effects
Castel, Arnaud (Autor:in) / Gilbert, Raymond Ian (Autor:in) / Ranzi, Gianluca (Autor:in)
Ninth International Conference on Creep, Shrinkage, and Durability Mechanics (CONCREEP-9) ; 2013 ; Cambridge, Massachusetts, United States
23.09.2013
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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