Results 11 to 20 of about 340 (173)

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

Shear behavior of externally prestressed UHPC beams without stirrups

open access: yesCase Studies in Construction Materials, 2023
Shear stirrups in a prestressed ultra-high performance concrete (UHPC) beam might be eliminated due to the high tensile strength of UHPC. This research aims to investigate shear behavior of the externally prestressed UHPC beams without stirrups. Thirteen
Jiahui Feng   +5 more
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

Feasibility Study of Stress Measurement in Prestressing Tendons Using Villari Effect and Induced Magnetic Field

open access: yesInternational Journal of Distributed Sensor Networks, 2013
This paper investigates experimentally the feasibility of estimating the stress in the prestressing tendons of prestressed concrete bridges using the magnetic field induced by an electromagnet and the Villari effect in which the magnetic susceptibility ...
Changbin Joh, Jung Woo Lee, Imjong Kwahk
doaj   +1 more source

Construction Technology and Application of Bonded Prestressed Tendons in Wind Turbine Mixed Towers [PDF]

open access: yes预应力技术
The post-tensioned bonded prestressing technology has been widely applied in wind power support structures due to its safety, reliability, economic efficiency, and durability.
Heming Zhang, Bin Wei
doaj   +1 more source

Proposals for Flexural Capacity Prediction of Precast Segmental Concrete Beam Prestressed with Internal Un-Bonded CFRP Tendons

open access: yesApplied Sciences, 2023
The application of CFRP tendons in precast segmental concrete beams (PSCB) as internal un-bonded prestressing reinforcement is a newly developed scheme to improve structural flexural performance. The stress increment of the un-bonded tendon, depending on
Wutong Yan   +3 more
doaj   +1 more source

PARAMETRIC STUDY ON THE INFLUENCE OF TENDON DIAMETER AND SLAB DEPTH ON THE LOAD-BEARING CAPACITY OF PRESTRESSED HOLLOW-CORE SLABS [PDF]

open access: yesProceedings on Engineering Sciences
This work evaluates how tendon size distribution and member depth affect the flexural performance of prestressed hollow-core slabs, with the total prestressing steel area kept constant.
Mohamed A. El Awady   +2 more
doaj   +1 more source

FINITE ELEMENT ANALYSIS OF POST-TENSIONED CONCRETE BOX GIRDERS

open access: yesJournal of Engineering, 2007
The behavior of prestressed concrete box-girder bridges has been studied under short term loading. The 20-noded isoparametric three-dimensional brick elements have been used to model the concrete in the box-girder with its two cantilever flanges.
Husain M. Husain   +1 more
doaj   +1 more source

Long-Span Wooden Structural Floors with Self-Tensioning System: Performance under Asymmetrical Loads

open access: yesAdvances in Materials Science and Engineering, 2016
This study analyzes the performance of wooden structural floors equipped with the self-tensioning system patented by the authors, consisting of a force multiplying mechanism connected to a self-tensioning tendon, which is activated automatically when the
J. Estévez-Cimadevila   +3 more
doaj   +1 more source

Effects of No Stiffness Inside Unbonded Tendon Ducts on the Behavior of Prestressed Concrete Containment Vessels

open access: yesNuclear Engineering and Technology, 2016
The numerical simulation methodologies to evaluate the structural behaviors of prestressed concrete containment vessels (PCCVs) have been substantially developed in recent decades.
Sang-Hoon Noh   +2 more
doaj   +1 more source

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