Results 1 to 10 of about 7,394 (240)

Three-Dimensional Reconstruction and Visualization of Underwater Bridge Piers Using Sonar Imaging [PDF]

open access: yesSensors
The quality of underwater bridge piers significantly impacts bridge safety and long-term usability. To address limitations in conventional inspection methods, this paper presents a sonar-based technique for the three-dimensional (3D) reconstruction and ...
Jianbin Luo   +3 more
doaj   +2 more sources

Evaluation of local scour around bridge piers for various geometrical shapes using mathematical models

open access: yesAin Shams Engineering Journal, 2018
Bridges are one of the important structures across the Nile River; these bridges may be subjected to collapse if there is no monitoring or safety precaution for local scour during high floods.
Ahmed Moustafa Ahmed Moussa
exaly   +3 more sources

Three-dimensional large eddy simulation of hydrodynamics in multi-pier tandem bridge systems [PDF]

open access: yesScientific Reports
The wake flow generated by tandem bridge piers significantly interferes with downstream flow fields, resulting in complex hydrodynamic interactions that impact structural safety and durability.
Weiqun Liang   +4 more
doaj   +2 more sources

Potential of roughening geometric elements as bridge pier local scour countermeasures [PDF]

open access: yesScientific Reports
The safety of bridges can be endangered by sediment erosion occurring around bridge piers. To mitigate this issue, this study examined the use of different roughening geometric elements (RGEs) on the upstream surface of bridge piers.
Aziz Ahmad   +5 more
doaj   +2 more sources

Effect of nonlinearity of restrainer and supports on the elasto-plastic seismic response of continuous girder bridge [PDF]

open access: yesFracture and Structural Integrity, 2014
During an earthquake, the nonlinearity of the bridge structure mainly occurs at the supports, bridge piers and restrainers. When entering nonlinear stage, members of the bridge structure affect the elasto-plastic seismic response of the whole structure ...
Wang Changfeng, Zhu Long, Chen Xingchong
doaj   +2 more sources

Research on Seismic Performance and Reinforcement Methods for Self-Centering Rocking Steel Bridge Piers

open access: yesApplied Sciences, 2023
To study the seismic performance of self-centering circular-section rocking steel bridge piers whose functions can be restored after an earthquake, a high-precision finite element (FE) analysis model of such a bridge piers was established. The hysteresis
Hanqing Zhuge   +3 more
doaj   +1 more source

Mean Flow Structure and Local Scour around Single and Two-Column Bridge Piers [PDF]

open access: yesعلوم و مهندسی آبیاری, 2019
Bridges constructed across rivers are among the most important structures, especially during and after flood events. Bridge piers are exposed to some hazardous factors such as local and contraction scour hydrodynamics.
Alireza Keshavarzi   +2 more
doaj   +1 more source

Auxiliary Piers on Long-Span Specially Shaped Mixed Steel Structure Main Tower Cable-Stayed Bridge: Research on the Impact on the Dynamic Performance

open access: yesAdvances in Materials Science and Engineering, 2021
This study investigates the influence of auxiliary piers on the natural frequency, deformation characteristics, displacements of the related parts, and internal forces of a long-span heterogeneous steel-structured main tower cable-stayed bridge.
Shanshan Guo, Deyong Cui, Shaokun Ma
doaj   +1 more source

Performance of Steel Fiber-Reinforced Concrete Pier under Impact Load

open access: yesAdvances in Civil Engineering, 2022
Vehicular impact on bridge piers is one of the leading causes of bridge failure. Due to the increase in vehicle-pier collisions, many researchers have studied the performance of RC bridge piers under vehicle collisions.
Melaknesh Dessalegn, Temesgen Wondimu
doaj   +1 more source

Experimental investigation of the angle effect of the cylindrical bridge group piers relative to the flow direction on the maximum scour depth of the piers [PDF]

open access: yesعلوم و مهندسی آبیاری, 2022
Bridges are one of the important structures in the field of land communication. With the construction of these structures in the river, a flow pattern with a three-dimensional structure is formed in the vicinity of its piers, and as a result of ...
Behnam Pourghasemzadeh, Mehdi Ghomeshi
doaj   +1 more source

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