The local scour around bridge piers is one of the main causes failures. In this study, hole dimensions circular were investigated under clear water conditions for various steady flow rates. experiments performed with four different pier diameters and seven rates by using uniform sediment a median diameter 1.63 mm geometric standard deviation 1.3. After each bathymetry was determined. New empiri...

Bridges are built in a variety of locations, many of which are susceptible to multiple extreme hazards (earthquakes, vehicle collisions, tsunamis or storm surges, and blasts are considered in this research since they are present as a minimum for some locations). This underscores the need to develop an innovative design concept for bridges from a multi-hazard perspective in which all hazards and...

An experimental study has been conducted on the effectiveness of two types of flow-altering countermeasures placed around a cylindrical pier under clear water condition, which include sacrificial piles and submerged vanes. Their arrangements follow the optimal configurations recommended in the published articles with some modification. The temporal evolution of maximum scour depth and its equil...

Current research investigating ice-covered bridge pier scour has focused on the effects of fully developed ice jams. However, based observations at various stages development, covers are not always developed. This experiment investigated a simulated floating jam’s with constant flow rate. Various channel-spanning cover lengths were tested, along one circular localized cover, and resulting was c...

Experimental proof is provided of an unconventional seismic design concept, which is based on deliberately underdesigning shallow foundations to promote intense rocking oscillations and thereby to dramatically improve the seismic resilience of structures. Termed rocking isolation, this new seismic design philosophy is investigated through a series of dynamic centrifuge experiments on properly s...