Results 51 to 60 of about 340 (173)
Durability performance of a high‐performance fiber‐reinforced concrete for bridge applications
Structural Concrete, EarlyView.Abstract This paper investigates the durability performance of a coarse‐aggregate high‐performance fiber‐reinforced concrete (HPFRC) developed as a cost‐efficient material solution for precast bridge applications. A comprehensive experimental program was conducted to assess the resistance of the material to the principal deterioration mechanisms ...
Rolando Baldiviezo +6 more
wiley +1 more source
Effective axial strength of laterally strengthened RC pier heads with post‐tensioning method
Structural Concrete, EarlyView.Abstract This study investigates the structural performance enhancement of reinforced concrete (RC) pier heads laterally strengthened with unbonded post‐tensioning (PT) to accommodate increased design loads following a deck replacement of an existing railway bridge.
Yujae Seo +3 more
wiley +1 more source
Strengthening Effect of Prestressed Near-Surface-Mounted CFRP Tendon on Reinforced Concrete Beam
Advances in Materials Science and Engineering, 2018 Efforts are being made to use FRP (fiber-reinforced polymer) for reinforcements instead of traditional construction materials like steel owing to its remarkable mechanical properties.
Woo-Tai Jung +3 more
doaj +1 more source
Prestress Loss Distributions along Simply Supported Pretensioned Concrete Beams
Electronic Journal of Structural Engineering, 2016 The prestressing forces in prestressed tendons undergo a process of reduction over a period of time. A common assumption is that prestress loss is constantly distributed throughout the span of a simply supported pretensioned concrete beam.
J. Kent Hsiao
doaj +1 more source
Flexural behavior of precast prestressed slabs with embedded building service systems
Structural Concrete, EarlyView.Abstract Dry‐assembled precast concrete construction is rapidly spreading in many parts of the world due to the several advantages offered by industrialized construction. In order to speed up not only the assemblage of the structure, but also the full integrated building process, engineering systems (mechanical–electrical–plumbing) may be prefabricated
Bruno Dal Lago, Aleksei Abramov
wiley +1 more source
Structural Concrete, EarlyView.Abstract Several test methods have been proposed in the literature for measuring the level of residual prestress, most of them involving either semi‐ or fully destructive techniques for local measurements which could be highly sensitive to boundary conditions and execution details.
Giuseppe Zarrella +2 more
wiley +1 more source
A Study on the Long-Term Performance Evaluation of Carbon-Fiber Reinforced Polymer (CFRP) Tendon
FibersCarbon-fiber reinforced polymer (CFRP) tendons have attracted increasing attention as corrosion-resistant prestressing elements for prestressed concrete and cable-supported structures; however, their practical implementation requires reliable ...
Jongeok Lee, Sung-Jin Lee, Woo-Tai Jung
doaj +1 more source
General FEM model of prestressing tendons
Computer Assisted Methods in Engineering and Science, 2023 The paper presents a general numerical model for the analysis of prestressed concrete with the application to beam, thin shell and volume type of prestressed structures.
Daniel Antoniak, Piotr Konderla
doaj
Vojnotehnički Glasnik, 2014 U radu je prikazano delovanje sile prednaprezanja na armiranobetonski ram (u daljem tekstu AB ram). Posmatrani sistem je statički neodređen sa dva ukleštenja. Na njega deluje opterećenje prednaprezanje kablom silom Nk=600 kN, kao i sopstveno opterećenje.
Miloš Z. Petrović +3 more
doaj +1 more source
State-of-the-Art Review on Determining Prestress Losses in Prestressed Concrete Girders
Applied Sciences, 2020 Prestressing methods were used to realize long-span bridges in the last few decades. For their predictive maintenance, devices and dynamic nondestructive procedures for identifying prestress losses were mainly developed since serviceability and safety of
Marco Bonopera +2 more
doaj +1 more source