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.