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Santosh Yadav's large-scale trials on a vibrating table with the 3SR laboratory - an article in the newspaper Dauphiné-Libéré relays the adventure.
on the December 18, 2020
Santosh Yadav, doctoral student at CDP RISK, is working on 1/2 scale tests of seismic resistance of buildings to help the Nepal reconstruction after the last earthquake. As his Grenoble laboratory burned down in a fire in 2020 winter, his tests have been carried out last november on the vibrating table at the FCBA in Bordeaux.
Published on December 18, 2020
Practical informations
Contact
Yannick Sieffert
yannick.sieffert (at) 3sr-grenoble.fr
It makes two laboratories of the Grenoble site, 3SR and CRAterre, work in an interdisciplinary way.
yannick.sieffert (at) 3sr-grenoble.fr
Partners
This project is supported by Idex through the "CDP Risk" and the training project "e-CoLos! "by the labex AE&CC, by UGA and G-INP.It makes two laboratories of the Grenoble site, 3SR and CRAterre, work in an interdisciplinary way.
SEISMIC BANDS: Building materials creating continuous horizontal bands regularly arranged in the height of a building. They allow the introduction of a discontinuity in the material inside a masonry which modifies the overall behavior at its junction, creating a specific area with a ruptured interface with the rest of the masonry (and thus a different cohesion, roughness and stiffness).
Experimental setup
The experimental setup consists of high-speed Phantom v2640 camera, recording at 1000 fps and stereo-vision camera setup using VIC 3D measurement system, recorded image at 55 fps, powerful source of light to have uniform exposure on the sample during the test. Along with the contactless measurement technique of DIC, the accelerometers and Drawing Wire Displacement Sensor (DWDS) were also placed at the different level of the wall to measure the acceleration and displacement value at different position.
The two faces of each houses were painted in white and black random speckle patterns were created in order to be able carry out Digital Image Correlation (DIC) with the image recorded during the dynamic test.
Image samples recorded with high-speed camera to be used for DIC.