The Application Of Laser-Speckle Photography To Ultimate Load Investigations On Reinforced Concrete Constructions

Klaus-Peter Grob

doi:10.1117/12.935380

26 October 1983 The Application Of Laser-Speckle Photography To Ultimate Load Investigations On Reinforced Concrete Constructions

Klaus-Peter Grob

Author Affiliations +

Proceedings Volume 0398, Industrial Applications of Laser Technology; (1983) https://doi.org/10.1117/12.935380
Event: 1983 International Technical Conference/Europe, 1983, Geneva, Switzerland

Abstract

When assessing the ultimate load of statically undetermined reinforced concrete beams, an exact knowledge of the bond mechanism and the rotation capability of the plastic hinges is of great importance. The size of these plastic areas is determined conclusively from the efficiency of bond between concrete and reinforcement. Experiments were carried out at the Institut air Massivbau, Hannover University, in order to measure the bond strenght and the extension of the plastic areas on models of reinforced concrete constructions. Laser-Speckle Photography was used for these investigations. The experimental devices, peculiarities affecting the application of the procedure to reinforced concrete constructions, like optical characteristics of the concrete, fracture development etc., and the results of the test series are reported on.

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Klaus-Peter Grob "The Application Of Laser-Speckle Photography To Ultimate Load Investigations On Reinforced Concrete Constructions", Proc. SPIE 0398, Industrial Applications of Laser Technology, (26 October 1983); https://doi.org/10.1117/12.935380

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