Results 231 to 240 of about 1,284,093 (296)

Experimental study of the effect of submergence ratio of double submerged vanes on topography alterations and temporal evaluation of the maximum scour in a 180-degree bend with a bridge pier group

International Journal of River Basin Management, 2020
Various protective methods are incorporated in order to change the flow pattern and reduce the intensity of the vortices around the piers with the aim of reducing scour at bridge piers.
Neda Safaripour, M. Vaghefi, A. Mahmoudi
semanticscholar   +1 more source

The effect of upstream T-shaped spur dike on reducing the amount of scouring around downstream bridge pier located at a 180° sharp bend

, 2020
With the advancement in the science of engineering, bridge piers scouring has become a well-known phenomenon, and engineers have always been making efforts to counter such a destructive phenomenon.
M. Vaghefi, Saman Solati, Chonoor Abdi Chooplou   +2 more
semanticscholar   +1 more source

Bulbous Pier: Alternative to Bridge Pier Extensions

2015
Bridge deck splashing causes deterioration to the bridge structure and renders the bridge unsafe for motorist and pedestrians. The traditional countermeasure for bridge deck splashing is pier extension, the pier extension moves the pier wave away from the bridge deck, but retrofitting existing bridges with pier extensions is costly.
openaire   +2 more sources

Scour at Wide Bridge Piers

Building Partnerships, 2000
Most empirical, local scour prediction equations over predict scour depths at structures that are wide compared to the water depths where they are located. This paper discusses various researchers attempts to deal with this problem. The methods and equations used by several Western European Countries (obtained during the FHWA, 1998 European Scanning ...
J. Sterling Jones, D. Max Sheppard
openaire   +1 more source

Foundation Depth for Bridge Piers

Journal of The Institution of Engineers (India): Series A, 2013
The safety of bridge piers built in rivers having the bed is one of the prime aspects in the study of scouring process around bridge piers. The stability of bridge piers depends on the depth of foundation provided below maximum scour level. The stability analysis of bridge piers is carried based on moment of forces acting on the caisson pier when the ...
G. Veerappadevaru, T. Gangadharaiah, T. R. Jagadeesh   +2 more
openaire   +1 more source

GRIP LENGTH FOR BRIDGE PIERS

ISH Journal of Hydraulic Engineering, 2011
ABSTRACT Proper estimation of grip length (foundation depth of pier below maximum scour level) is very important for safety of bridge piers, Lacey's recommendations are used for the design of grip length for bridges in India. Validity of Lacey's recommendation has been investigated by both experimental and analytical approaches.
G. Veerappadevaru, T. Gangadharaiah, T. R. Jagadeesh   +2 more
openaire   +1 more source

Riprap Protection at Bridge Piers

Journal of Hydraulic Engineering, 2001
Although riprap is the most commonly employed countermeasure against scouring around bridge piers, few studies exist of riprap performance under live-bed conditions.
Christine S. Lauchlan, Bruce W. Melville
openaire   +1 more source

Reconstruction of Windsor Bridge Piers

Transportation Research Record: Journal of the Transportation Research Board, 1996
The Windsor Bridge provides a two-lane highway crossing of the Susquehanna River in Broome County, New York. The structure comprises three 62.5-m (205-ft) simple-span through trusses supported by reinforced concrete abutments and solid-shaft piers. Having been built in 1935, it required rehabilitation in the early 1980s.
Phillip C. Pierce, Joseph J. Mieczkowski, Edward J. Gannon, Charles J. Korhonen   +3 more
openaire   +1 more source

Dynamic Response of Bridge Pier under Combined Earthquake and Wave–Current Action

Journal of Bridge Engineering, 2019
A study of the dynamic response of a circular bridge pier forced simultaneously by earthquake and wave–current actions is presented.
Piguang Wang, Mi Zhao, Xiu-li Du, Jingbo Liu   +3 more
semanticscholar   +1 more source

Hollow Concrete Bridge Pier Behavior

ACI Journal Proceedings, 1985
This paper reports results of tests of four model bridge piers. The principle objectives of this experimental program were to verify the axial load-moment curvature P-M-phi relationship for hollow columns and to examine the validity of the plane-section assumption for hollow-pier sections. This was necessary to validate completely the computer analysis
openaire   +1 more source