Results 171 to 180 of about 1,325,756 (242)

Automated crack evaluation of a high‐rise bridge pier using a ring‐type climbing robot

Comput. Aided Civ. Infrastructure Eng., 2020
This article proposes a deep learning‐based automated crack evaluation technique for a high‐rise bridge pier using a ring‐type climbing robot. First, a ring‐type climbing robot system composed of multiple vision cameras, climbing robot, and control ...
Keunyoung Jang, Y. An, Byunghyun Kim, Soojin Cho   +3 more
semanticscholar   +1 more source

Scour protection around bridge pier and two-piers-in-tandem arrangement

ISH Journal of Hydraulic Engineering, 2021
In the present study, experiments were carried out on circular model bridge piers individually as well as with two-piers-in-tandem arrangement under clear water scour conditions predominantly caused by formation of horseshoe vortex.
V. Garg, B. Setia, V. Singh, Ajay Kumar
semanticscholar   +1 more source

Nonlinear numerical analysis and progressive damage assessment of a cable-stayed bridge pier subjected to ship collision

, 2020
Despite many studies on barge collisions with girder bridges in the literature, this paper investigates the progressive damage behaviors and nonlinear failure modes of a cable-stayed bridge pier subjected to ship collisions using finite element (FE ...
Gholamreza Gholipour, Chunwei Zhang, A. Mousavi   +2 more
semanticscholar   +1 more source

Full-Scale Experimental Study of a Reinforced Concrete Bridge Pier under Truck Collision

, 2021
Recently, vehicle collisions with bridge piers have occurred frequently, which have attracted the attention of researchers.
Lin Chen, Hao Wu, Q. Fang, Ruiwen Li
semanticscholar   +1 more source

Hybrid Modeling for Design of a Novel Bridge Pier Collar for Reducing Scour

, 2021
Bridge pier scour poses major concerns for public safety and riverine communities because of its ability to undermine pier foundations.
Christopher Valela, I. Nistor, C. Rennie, J. Lara, M. Maza   +4 more
semanticscholar   +1 more source

Scour Vulnerability of River Bridge Piers

Journal of Geotechnical and Geoenvironmental Engineering, 2003
A simple procedure is proposed to assess the vulnerability of bridge piers in rivers, taking into account the phenomena governing fluvial dynamics during flood events. The procedure requires an estimation of the maximum scour depth of the soil surrounding both the pier and the foundation as well as an analysis of the bearing capacity of the pier ...
FEDERICO, FRANCESCO, SILVAGNI, GUGLIELMO, VOLPI, FABIO   +2 more
openaire   +1 more source

Impact of Upstream Bridge Pier on the Scouring Around Adjacent Downstream Bridge Pier

Arabian Journal for Science and Engineering, 2018
The study aspires to investigate a relative scour condition around three-pier group. It identifies the upstream downstream scour geometries when two tandem piers are placed inline and third pier is placed eccentrically in middle of tandem piers. Laboratory scale experiments were physically performed by gradually varying the intermediate longitudinal ...
Rajib Das, Subhasish Das, Hasanur Jaman, Asis Mazumdar   +3 more
openaire   +1 more source

Effect of Pier Spacing on Scour Around Bridge Piers

Journal of Hydraulic Engineering, 1985
Small scale experiments were designed to investigate effects of lateral spacing between bridge piers on scour depth. The scouring process is effected by two processes: (1) The interaction of the horseshoe vortices around the bases of the piers; and (2) the acceleration of flow between the piers.
Keith R. Elliott, Christopher J. Baker
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

Bridge Pier Scour Countermeasures

World Environmental and Water Resources Congress 2007, 2007
Local scour at bridge piers is a potential safety hazard to the traveling public and is a major concern for transportation agencies. Bridge pier scour is a dynamic process that varies with water depth, flow angle, pier geometry and other factors.
P. E. Clopper, P. F. Lagasse, L. W. Zevenbergen   +2 more
openaire   +1 more source