Many buildings had stopped their service due to damage non-structural members including ceilings, partition walls and piping after large-scale earthquakes. In particular, piping-failure-caused water leakage damaged electronic equipment resulted in a loss of functionality the building. Cyclic bending tests are conducted carbon steel pipes for supply with nominal diameters 25A, 40A, 50A 80A evalu...

Sand liquefaction triggered by earthquakes is a devastating geological disaster and has emerged as an engaging topic in earthquake engineering. With enhanced understanding of pure sand promoted laboratory research, there growing concern, following filed investigations, over the influence fine particles on potential containing inclusions. Efforts have been devoted to clarifying significance cert...

Cyclic compression fatigue properties of concrete are studied with the ultrasonic testing method cycling frequency 19 kHz and compared to servo-hydraulic tests performed at 60 Hz. Ultrasonic was found applicable for rapid generation very high cycle (VHCF) data concrete. Fatigue cracks can be initiated, however specimens do not rupture, since cyclic stresses decrease increase compliance in displ...