Results 21 to 30 of about 8,557 (257)

Capacity of Prestressed Concrete Containment Vessels with Prestressing Loss [PDF]

open access: green, 2001
Reduced prestressing and degradation of prestressing tendons in concrete containment vessels were investigated using finite element analysis of a typical prestressed containment vessel. The containment was analyzed during a loss of coolant accident (LOCA) with varying levels of prestress loss and with reduced tendon area.
Jeffrey L. Smith
openalex   +4 more sources

Prestress losses in NSM-CFRP flexurally strengthened RC beams [PDF]

open access: green, 2015
The use of prestressed near surface mounted fibre reinforced polymers (NSM-FRP) has been long acknowledged to be a suitable approach to strengthen and retrofit existing reinforced concrete structures. The application of a certain amount of prestress to
Barros, Joaquim A. O., Costa, I. G.
core   +3 more sources

Prestress Loss Distributions along Simply Supported Pretensioned Concrete Beams

open access: diamondElectronic 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   +2 more sources

Study on prestress long-term loss of anchor cable considering coupled multiple factors

open access: yesRock and Soil Mechanics, 2021
In order to study the long-term loss law of anchorage force and the calculation method of prestress loss of anchorage force, a calculation method of the prestress loss of anchorage force was proposed to account for three factors.
FENG Zhong-ju   +5 more
doaj   +1 more source

Analysis on the Influence Factors of Construction Linear Control of Continuous Rigid Structure Bridge [PDF]

open access: yesE3S Web of Conferences, 2021
In order to study the influence of prestress on cantilever deflection and construction linear control of continuous rigid frame bridge in construction stage, this paper introduces the significance of continuous rigid frame bridge’s linear control, the ...
Liu Yang   +5 more
doaj   +1 more source

Prestress loss of prestressing tendons with asymmetrical layout parabolas [PDF]

open access: yesProceedings of the 5th International Conference on Civil Engineering and Transportation 2015, 2015
According to the equilibrium condition of geometry relationship, we derived the formulas that can be used to calculate the loss of prestress of prestressing tendons with the double-end tensioning and the asymmetrical arrangement parabolic curves.
Xiuxin Wang, Shanwen Zhang
openaire   +1 more source

An Experimental Study on Secondary Transfer Performances of Prestress after Anchoring Failure of Steel Wire Strands

open access: yesMetals, 2023
To understand the secondary transfer performances of residual prestress after the anchoring failure of end-anchored steel wire strands due to corrosion fracture, six steel wire strand components of post-tensioning prestress were designed and fabricated ...
Rihua Yang   +3 more
doaj   +1 more source

Experimental and Numerical Investigation on Progressive Collapse Resistance of Post-tensioned Precast Concrete Beam-Column Sub-assemblages [PDF]

open access: yes, 2020
In this paper, four 1/2 scaled precast concrete (PC) beam-column sub-assemblages with high performance connection were tested under push-down loading procedure to study the load resisting mechanism of PC frames subjected to different column removal ...
Feng, D-C.   +4 more
core   +1 more source

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