Local bridge scour is caused by the interference of bridge piers with the flow of water and is characterized by the formation of scour holes. Local scour occurs at a bridge pier when the local flow field is strong enough to remove bed materials. Several variables affect the scour depth including the flow intensity, the relative flow depth, the pier-width, and the properties of the river bed mat...

which connict with them are activated. Thus, in example a) of Figure 5, new values for feasible and preferred intervals of Pier-width are found by propagating the constraint from Beam-depth. Preferences represent optimal values, and the closer the value is to the preference the better the criterion is adhered to. When preferences are in connict, they are therefore not dropped, but weakened so t...

The damage caused by earthquake is irresistible for human beings, and the structure with poor robustness is most affected by earthquake. Especially when traffic arteries like bridges and highways are affected, the losses will be unimaginable. To reduce the loss in earthquake, the paper targets the long-span cable-stayed bridge and discusses a method of structural damage control. The energy-diss...

The seismic behavior and plasticity spreading of a neotype column-slab high pier are researched in this paper. Four scale model tests of a web slab with two boundary columns are carried out under cyclic inelastic lateral displacements simulating seismic response. The test results show that the neotype column-slab high pier has strong and stable bearing capacity, good ductility, and energy dissi...

Seismically isolated bridges with inverted T-cap beams are not investigated in depth until now. Elastic response spectrum analysis is typically preferred in design of bridges. In this study, it has been demonstrated that elastic response spectrum analysis may not be the right analysis tool to design bridges with inverted T cap beams since pounding effects are ignored. Pier design forces determi...

Science Writer Jennifer F. Wilson The content of In the Clinic is drawn from the clinical information and education resources of the American College of Physicians (ACP), including PIER (Physicians’ Information and Education Resource) and MKSAP (Medical Knowledge and Self-Assessment Program). Annals of Internal Medicine editors develop In the Clinic from these primary sources in collaboration w...

Pier Lorenzo Puri and Mark Mercola Muscle Development and Regeneration Program, Sanford-BurnhamMedical Research Institute, La Jolla, California 92037, USA; Dulbecco Telethon Institute (DTI), Instituto di Ricovero a Cura a Carattere Scientifico (IRCCS) Fondazione Santa Lucia, European Brain Research Institute, 00143 Rome, Italy; Department of Bioengineering, Jacobs School of Engineering, Univers...

Right Ventricular Volumes and Function normalized to body surface area, age and sex in a large cohort of well-treated Thalassemia Major without myocardial iron overload Antonella Meloni, Maria Chiara Dell’Amico, Brunella Favilli, Giovanni D Aquaro, Ait-Ali Lamia, Elisabetta Chiodi, Claudio Ascioti, Stefania Renne, Pier Paolo Bitti, Calogera Gerardi, Vincenzo Positano, Massimo Lombardi, Alessia ...

Rocking isolation of structures is evolving as an alternative design concept in earthquake engineering. The present paper investigates the seismic performance of an actual overpass bridge of the Attiki Odos motorway (Athens, Greece), employing two different concepts of rocking isolation: (a) rocking of the piers on the foundation (rocking piers); and (b) rocking of the pier and foundation assem...

The present analysis focuses on the investigation of two-dimensional flow passing a bridge pier nearby splitter plate in different regimes laminar flow. is T-shaped and two cases have been studied based form relative to pier. implemented for steady incompressible water an open channel. current study deals with velocity vectors, drag coefficients, lift skin friction. vector gave good indicator a...