Results 11 to 20 of about 764 (184)

Short-Term Efficiency of Using Sustainable BFRP Bars in Post-Tensioning Systems for One-Way RC Slab [PDF]

open access: yesJES: Journal of Engineering Sciences, 2023
Basalt Fiber Reinforced Polymer (BFRP) bars are manufactured from sustainable natural materials. BFRP Young’s modulus constitutes weak performance to the serviceability limits in the structural reinforced concrete (RC) elements, but using post-tensioning
sameh yehia   +3 more
doaj   +1 more source

Flexural Behavior of UHPC Beams Prestressed with External CFRP Tendons

open access: yesApplied Sciences, 2021
This paper presents an experimental investigation on the flexural behavior of ultra-high-performance concrete (UHPC) beams prestressed with external carbon fiber-reinforced polymer (CFRP) tendons.
Li Jia   +5 more
doaj   +1 more source

Determination of critical stresses during prestressing along the entire length of a circular-cylindrical shell [PDF]

open access: yesE3S Web of Conferences, 2021
In the Russian Federation, there is an urgent issue of grain storage and processing to be resolved through the reconstruction of old and construction of new storage facilities.
Chapaev Takhir, Noraliev Nurilla
doaj   +1 more source

Investigation on the Application of External Prestressing Technology in Bridge [PDF]

open access: yes预应力技术
To systematically evaluate the long-term performance of external prestressing technology and promote its engineering application, the international journal Prestress Technology of Tongji University recently organized a specialized symposium and conducted
Zhichao Wang, Fangyuan Li
doaj   +1 more source

Parametric Study of Continous Composite Steel-Concrete Beam with External Prestressing [PDF]

open access: yesEngineering and Technology Journal, 2015
In the present study, three-dimensional nonlinear finite element analyses were conducted to investigate the effect of several important parameters on the behavior of the external prestressed continuous composite steel-concrete beam.
Amer M. Ibrahim, Wissam D. Salman
doaj   +1 more source

The Interfacial Friction Loss of Prestressed Carbon-Fiber Tendons in a Bending State

open access: yesBuildings, 2022
Carbon-fiber reinforced plastic (CFRP) is ideal for bridge reinforcement due to its high strength, light weight, and corrosion resistance. Studies on the friction loss of CFRP tendons in a bending state form an important part of advancing the application
Jiaping Fu   +5 more
doaj   +1 more source

Analysis of the Bearing Capacity of Reinforced Concrete Dapped-End Beams

open access: yesApplied Sciences, 2023
The dapped-end beam is a widely utilized structural component that offers many benefits in real-world applications. However, abrupt changes in the geometry result in complex stress flows, rendering conventional calculation methods unreliable.
Vilius Masėnas   +2 more
doaj   +1 more source

Experimental Test on Bridge Reinforcement by Enlarging Section-Prestress Method [PDF]

open access: yesE3S Web of Conferences, 2020
This paper proposes the method of enlarging section combined with prestressed tendon (Enlarging Section-Prestress Method), which has the advantages of both increasing section and external prestressing, such as reducing section height, the prestressing ...
Jia Li   +4 more
doaj   +1 more source

External Prestressing Bridge Reinforcement Technology Review

open access: yesMATEC Web of Conferences, 2015
Externally prestressed bridge can not only limit and reduce the cracks and deformation of the structure, improve the rigidity and bearing capacity of structure, improve the stress state of structure, but also have less interference for bridge operation ...
Zhu Hanbing, Yang Yaxun, Fan Weiya
doaj   +1 more source

Reinforced concrete corbels strengthened with external prestressing

open access: yesRevista IBRACON de Estruturas e Materiais, 2019
Reinforced concrete structures may demand, throughout their lifetime, the increase of the capacity load due to eventual changes in the load configuration. In this context, corbels could be considered structural elements which present great challenges for
R. M. ROMANICHEN, R. A. SOUZA
doaj   +2 more sources

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