Results 201 to 210 of about 91,054 (253)

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

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

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

Stability of Riprap at Bridge Piers

Journal of Hydraulic Engineering, 1993
An experimental investigation was performed to determine the critical conditions for displacement of riprap placed on streambeds surrounding bridge piers. A functional relation between stability number, a dimensionless grouping of rock size and density to fluid velocity and density, and relative approach flow roughness, approach flow depth, riprap size,
openaire   +1 more source

Behavior of Nonlinearly Restrained Slender Bridge Piers

Journal of Bridge Engineering, 1998
The load-carrying capacity of slender reinforced concrete piers depends on the horizontal retaining forces exerted by the bridge deck. The magnitude of these forces is a function of the behavior of the restraints connecting the deck to the piers and to the abutments, as well as of their evolution in the presence of increasing loads. A numerical method,
G. MANCINI, F. MARTINEZ Y. CABRERA, M. A. PISANI, RECUPERO, Antonino   +3 more
openaire   +4 more sources

Flow around Bridge Piers

Journal of Hydraulic Engineering, 1998
This paper presents the results of a laboratory study on flow past cylindrical piers placed on smooth, rough, and mobile beds. Experimental results are presented on the flow in the plane of symmetry, including the frontal downflow and the effects of bed roughness and the scour hole on it.
Ferdous Ahmed, Nallamuthu Rajaratnam
openaire   +1 more source

Scour Protection at Bridge Piers

Journal of Hydraulic Engineering, 1992
The objective of this study is to review existing methods and propose alternative or additional devices for scour protection around bridge piers. Engineering methods used in dealing with pier‐scour problems include placing coarse riprap around the foundations. An inverted filter layer is normally placed beneath the riprap to overcome leaching problems.
openaire   +1 more source

Shaking table test of a novel railway bridge pier with replaceable components

Engineering Structures, 2021
Xiyin Zhang, Jinbo Wang
exaly  

Bridge Pier Based on the Backbone

The Engineer, 2018
Spine-like structure is designed to withstand earthquakes
openaire   +1 more source