Results 71 to 80 of about 4,745 (262)

Large‐scale tests of 50‐year‐old prestressed concrete bridge girders

open access: yesStructural Concrete, EarlyView.
Abstract An experimental investigation has been carried out as part of the BRIDGE|50 research project, focusing on large‐scale loading tests performed on five 50‐year‐old prestressed concrete (PC) girders. The study aimed at evaluating the structural response of five girders retrieved from a viaduct in the urban area of Turin, Italy, subjected to 4 ...
Francesco Tondolo   +7 more
wiley   +1 more source

The effects of height and vertical position of slot on the reduction of scour hole depth around bridge abutments

open access: yesAin Shams Engineering Journal, 2019
This paper investigates the effects of the height and vertical position of slots on the reduction of scouring on the periphery of rectangular abutments by constructing various slot models in different dimensions under varying flow conditions.For the ...
Mehdi Osroush   +3 more
doaj   +1 more source

Ultimate Design Capacity of Bridge Abutments

open access: yes, 2019
Under the large forces transmitted by a bridge structure during an earthquake, a bridge abutment may undergo significant displacements deriving from the mobilisation of both the soil and the structural strength. In some cases a controlled yielding of the abutment may produce favourable effects, dissipating seismic energy and limiting the seismic ...
Davide Noè Gorini   +2 more
openaire   +1 more source

Numerical modelling of lateral stress on integral abutments due to cyclic loading

open access: yes, 2009
The integral bridge concept eliminates problems associated with expansion joints and bearings used on conventional bridges. However, integral structures are not free from problems, and of particular concern is the magnitude of lateral soil stress which ...
Banks, J.R, Banks, James R
core  

Seismic evaluation of the southbound Stellenberg Interchange Bridge, B5593, in South Africa

open access: yesStructural Concrete, EarlyView.
Abstract This study presents a nonlinear finite element assessment of the seismic vulnerability of Bridge B5593, located in the south‐western region of South Africa. Previous evaluations identified a high likelihood of column failure; however, these were based on linear material models incapable of capturing damage evolution.
Wandie Olivier, Trevor Haas
wiley   +1 more source

Nonthermal plasma approaches for combating implant‐associated infections: A compendious review

open access: yesVIEW, EarlyView.
Implant‐associated infections pose serious clinical challenges. Non‐thermal plasma (NTP) modifications overcome this bottleneck in distinct ways relative to traditional sterilization methods. Gas‐phase plasmas generate highly energetic species, UV radiation and reactive oxygen/nitrogen species (RONS), which alter the implant surface properties.
A. M. Trimukhe   +8 more
wiley   +1 more source

Experimental study on riprap stable size around wing-wall abutments

open access: yesInternational Journal of Sediment Research
Many experiments were done over a relatively wide range of effective parameters to determine the stable size of riprap stones around wing-wall abutments.
Morteza Movahhedi   +3 more
doaj   +1 more source

Geosynthetic Reinforced Soil for Low-Volume Bridge Abutments:TR-621, January 2012

open access: yes, 2012
This report presents a review of literature on geosynthetic reinforced soil (GRS) bridge abutments, and test results and analysis from two field demonstration projects (Bridge 1 and Bridge 2) conducted in Buchanan County, Iowa, to evaluate the ...

core  

Ungulate substrate use in fauna passages

open access: yesWildlife Biology, EarlyView.
Fauna passages are increasingly constructed at major roads and railways to mitigate the negative effects of infrastructure and traffic on wildlife. The function of such passages depends on design, including the construction materials, soil, and vegetation.
Milla Niemi, Jan Olof Helldin
wiley   +1 more source

1-Year Evaluation of OT Bridge Abutments for Immediately Loaded Maxillary Fixed Restorations: A Multicenter Study. [PDF]

open access: yesEur J Dent, 2021
Acampora R   +10 more
europepmc   +1 more source

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