Investigation Into The Crack Development And Joint Rotation Of Reinforced Concrete Structures

Klaus-Peter Grob; Wolfram von Cramon

doi:10.1117/12.952378

16 July 1986 Investigation Into The Crack Development And Joint Rotation Of Reinforced Concrete Structures

Klaus-Peter Grob, Wolfram von Cramon

Proceedings Volume 0599, Optics in Engineering Measurement; (1986) https://doi.org/10.1117/12.952378
Event: 1985 International Technical Symposium/Europe, 1985, Cannes, France

Abstract

The experimental investigation is described of the reinforced concrete construction pro blems mentioned in the title, making use of the Laser-Speckle-Photography optical measurement method- Proceeding from the material-conditional particularities and the high demands on the accuracy of the measurement values, a semi-automatically working device. was developed for analysing the Laser-Speckle photographs. The method of working with this device, the statistical routines applied in the process and the attainable accuracy are reported on. Moreover, reference is also made to the strains in a reinforced concrete member and the crack. formation. In the last section, the results of measurements of the joint rotation on the inner support of a two-span beam of reinforced micro-concrete, as well as the shear bearing behavior observed in this context, are discribed.

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Klaus-Peter Grob and Wolfram von Cramon "Investigation Into The Crack Development And Joint Rotation Of Reinforced Concrete Structures", Proc. SPIE 0599, Optics in Engineering Measurement, (16 July 1986); https://doi.org/10.1117/12.952378

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