Large Ring Test for Evaluation of Restrained Shrinkage Cracking: Calibration and Experimental Trial

<div>The full wheatstone bridge adapted for strain measurements on the inner surface of the steel ring is depicted, illustrating (a) the configuration of strain gauges and (b) the schematic circuit diagram. Strain gauges (SG) labelled h1 and h2 are affixed in the hoop direction, while v1 and v2 are attached in the vertical direction. <i>U</i><sub><i>E</i></sub> denotes the excitation voltage, and <i>U</i><sub><i>A</i></sub> is the output voltage of the bridge. The centreline at half-height of the steel ring passes between v1 and v2.</div>

Advances in Civil Engineering

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Figure 2

Figure 2: Large Ring Test for Evaluation of Restrained Shrinkage Cracking: Calibration and Experimental Trial 