Results 141 to 150 of about 764 (184)

Strengthening of Concrete Beams by External Prestressing

PCI Journal, 1993
The use of external prestressing tendons as a means of strengthening or upgrading concrete flexural members was experimentally investigated. 16 beam specimens were first subjected to cyclic fatigue loading at a constant load range to induce fatigue deformations.
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Collapse Modalities of Composite Girders Prestressed by External Tendons

1996
The authors analyze the non-linear behaviour of composite concrete-steel beams prestressed by external tendons which are free to slip along their path defined by a finite number of saddle points with zero friction in order to examine the failure modalities for the most common static schemes and for the most common construction sequences.
DALL'ASTA, Andrea, L. DEZI
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The analysis on Deformation in externally prestressed beams

2011 International Conference on Remote Sensing, Environment and Transportation Engineering, 2011
In order to calculate prestress increment of external tendon in externally prestressed beam and compute structure deformation considering stiffness of externally prestressed tendons under the situation of vertical load, using displacement model of element which is expressed by dof of beam and the slip at deviation block of externally prestressed ...
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Strengthening by Means of External Prestressing

Journal of Bridge Engineering, 2001
Jinsheng Du, Xila Liu, M. A. Pisani
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Numerical Analysis of Continuous Beams Prestressed with External Tendons

Journal of Bridge Engineering, 2009
This paper presents a numerical model conceived to simulate the behavior up to collapse of continuous concrete beams prestressed with bonded or external tendons. Its most valuable feature is the ability to automatically determine the most suitable extent of each load increment according to the actual stiffness of all the segments that form the ...
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Shear performance of prismatic and tapered beams with corrugated steel webs under external prestressing force

Thin-Walled Structures, 2022
Xiaolong Su
exaly  

Strengthening and verification of the prestressed road bridge using external prestressing

2008
M Moravcik, I Dreveny
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Externally Prestressed Bridges

SP-120: External Prestressing in Bridges, 1990
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Study on the Shear Behavior of Prismatic and Tapered Continuous Beams with Corrugated Steel Webs under External Prestressing Force

Journal of Bridge Engineering, 2023
Yiyan Lu, Lu Yiyan, Xiaolong Su
exaly  

Safety Monitoring and Effect Evaluation of Variable Cross-Section Continuous Box-Girder Bridges Strengthened with External Prestressing

Journal of Performance of Constructed Facilities, 2023
Caiqian Yang, Jing Yang, Yang Caiqian
exaly