Results 1 to 10 of about 1,707 (203)

Analysis of Prestressing in Precast Prestressed Concrete Beams

open access: yesCivil and Environmental Engineering, 2021
Knowledge of prestressing force’s value is in the case of prestressed concrete structure the most important basis for defining load-carrying capacity and remaining service life. Numbers of prestressed concrete structures are about to reach their limit of
Kraľovanec Jakub   +2 more
doaj   +2 more sources

Simulating the behavior of prestressed beams with different degrees of prestressing [PDF]

open access: yesE-Zbornik, elektronički zbornik radova Građevinskog fakulteta, 2021
The paper covers numerical analysis of an experiment with five T-beams that are loaded to failure. The beams are designed to have the same ultimate bearing capacity with different ratios of prestressed to classic reinforcement. A detailed overview of the experiment is shown with exact section dimensions, as well as exact position and ratio of ...
Marino Jurišić   +2 more
openaire   +1 more source

Plasma Hydrogenation of High-Carbon Structural Steel Wires under Different Prestressing Levels

open access: yesMaterials Research, 2023
High-carbon structural steel wires were prestressed to various levels in a plasma hydrogenation environment and then pulled in a slow strain rate test (SSRT).
Amjad Saleh El-Amoush   +1 more
doaj   +1 more source

STRENGTHENING BEHAVIOR OF STEEL BEAMS UNDER VARIED ECCENTRICITY LOCATIONS AND JACKING STRESS [PDF]

open access: yesJournal of Engineering and Sustainable Development, 2020
Thirteen simply supported steel beams were tested to explain the effect of strengthening by external prestressing strands. All of these beams have the same steel section, clear span length and strengthening by two external prestressing strands.
Kamal Shahada Mahmoud   +2 more
doaj   +3 more sources

Stage-by-Stage Prestressing Arrangement Design in the Design of Bridges with Hybrid Internal and External Prestressing Tendons [PDF]

open access: yes预应力技术, 2023
In the design scheme of a bridge with external prestressing tendons and hybrid internal and external tendons, the internal tendons can bear the load in cantilever casting construction, the external tendons can bear the superimposed dead load and the ...
Zhichao Wang, Fangyuan Li
doaj   +1 more source

COMPARING THE RIGIDITY OF THE PRESTRESSED AND NON-PRESTRESSED FOUNDATION [PDF]

open access: yesJurnal Teknologi, 2016
If compared with reinforced concrete, the prestressed concrete is able to resist higher loads before cracks develop. As cracks reduce considerably rigidity of the element, the prestressed element can be regarded as rather rigid. The article compares the rigidity of the prestressed and non-prestressed foundations in two axes.
Labudková, Jana, Čajka, Radim
openaire   +2 more sources

Multi-Step Prestressing with Hybrid SMA Wires

open access: yesApplied Sciences, 2020
Prestressing force is induced in reinforced concrete (RC) structures to improve their load-carrying capacity. Generally, the prestressing strand of an RC structure is tensioned using a hydraulic jack, which decreases its workability.
Chi-Young Jung   +2 more
doaj   +1 more source

Verification of Actual Prestressing in Existing Pre-Tensioned Members

open access: yesApplied Sciences, 2021
In the case of prestressed concrete structures, information about the actual state of prestressing is an important basis for determining their load-carrying capacity as well as remaining service life.
Jakub Kraľovanec   +4 more
doaj   +1 more source

Effect of DC Prestressing on Periodic Grounded DC Tree in Cross-Linked Polyethylene at Different Temperatures

open access: yesIEEE Access, 2017
Periodic grounded dc trees in cross-linked polyethylene under various dc prestressing times are investigated in the temperature range of 20 °C-80 °C.
Yani Wang, Feng Guo, Jiandong Wu, Yi Yin
doaj   +1 more source

EFFECT OF PRESTRESSING STRANDS ON THE LOAD DEFLECTION BEHAVIOR OF STEEL BEAMS [PDF]

open access: yesJournal of Engineering and Sustainable Development, 2019
Seven simply supported steel beams were tested to explain the effect of strengthening by external prestressing strands. All of these beams have the same steel section, clear span length and the strengthening samples implemented by two external ...
Kamal Shahada Mahmoud   +2 more
doaj   +3 more sources

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