Results 161 to 170 of about 1,325,756 (242)

Reduction of local scour around a bridge pier by using different shapes of pier slots and collars

Water Science and Technology: Water Supply, 2020
Local scour around bridge piers is one of the main causes of bridge failure all over the world. Experimental and hydraulic models were carried out to investigate two types of scour reduction methods around a single cylindrical pier, namely the pier’s ...
Almaliki Abdulrazak H
exaly   +2 more sources

Study on anti-tsunami optimization design of bridge pier: A new type bridge pier

Ocean Engineering, 2020
Abstract The surface of the bridge pier is divided into upstream surface and downstream surface. The tsunami force characteristics and generation mechanisms for regular piers, i.e. square, circular and diamond piers, as well as pressure distribution and flow field around piers are discussed.
Wanli Yang, Fuhai Li
exaly   +2 more sources

CLEAR WATER AND LIVE BED SCOUR DEPTH MODELLING AROUND BRIDGE PIER USING SUPPORT VECTOR MACHINE

Canadian journal of civil engineering (Print), 2023
In recent history, local scour around the bridge piers has been a major cause of bridge failure therefore it is important to precisely predict the scour depth. When the flow of water interacts with the bridge pier in the mobile bed, it usually results in
N. .., Anubhav Baranwal, B. S. Das
semanticscholar   +1 more source

Evaluation of hybrid NSM-CFRP technical bars and FRP sheets for seismic rehabilitation of a concrete bridge pier

Bridge Structures, 2023
Seismic retrofit is a cost-effective and sustainable solution for improving bridge structures in seismic zones. Fiber Reinforced Polymer (FRP) is commonly used to replace steel components in retrofit projects due to their light weight, high strength, and
M. R. Shokrzadeh, F. Nateghi-Alahi
semanticscholar   +1 more source

Seismic fragility and damage assessment of reinforced concrete bridge pier under long-duration, near-fault, and far-field ground motions

, 2021
Observations from recent earthquakes around the world have revealed the destructive nature of near-fault ground motions that cause significant damage to structures. On the other hand, the effect of long-duration motions on seismic demands has attracted a
B. Todorov, A. M. Billah
semanticscholar   +1 more source

Experimental studies of embedment length of precast bridge pier with socket connection to pile cap

, 2021
Socket connections are recommended to connect precast members in accelerated bridge construction (ABC) due to their advantages over other connecting methods. The primary objectives of this study are to evaluate the seismic behavior of socketed piers with
Yan Xu, Z. Zeng, Zhigang Wang, J. Ge
semanticscholar   +1 more source

Bridge pier geometry effects on local scour potential: A comparative study

Ocean Engineering, 2021
Scour, or the localized loss of soil around the foundation, is a dominant factor contributing to failure. Scour at bridge piers, columns of elevated buildings, and wind turbines with monopile foundations can cause damage after flooding and natural ...
A. Aly, E. Dougherty
semanticscholar   +1 more source

Improved bridge pier collar for reducing scour

, 2021
This study performed a bridge pier collar comparison for the purpose of reducing scour, while introducing a new collar design. The new collar, referred to as Collar Prototype Number 3, was designed based on an equilibrium scour hole and provides a method
Christopher Valela, C. Rennie, I. Nistor
semanticscholar   +1 more source

Seismic performance evaluation of a steel tubular bridge pier in a five-span continuous girder bridge system

Structures, 2021
The seismic performance of a steel tubular bridge pier in a five-span continuous girder bridge system was evaluated through dynamic non-linear time-history analysis under strong ground motions.
Zhanfei Wang, Hao Ren, Q. Shen, W. Sui, X. Zhang   +4 more
semanticscholar   +1 more source

Bridge Pier Scour: An overview of factors affecting the phenomenon and comparative evaluation of selected models

, 2021
Scour, defined by the loss of geomaterials surrounding a foundation support system, is a primary cause of bridge failure in the United States and worldwide.
A. R. Shahriar, A. Ortiz, B. Montoya, M. Gabr   +3 more
semanticscholar   +1 more source