Losses of prestress in post-tensioned glass beams

Engelmann, Michael; Weller, Bernhard

doi:10.1016/j.istruc.2019.01.011

Cited by 4 publications

(9 citation statements)

References 11 publications

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“…Subsequently, a post-tensioning method was developed, occurring following the concrete casting [ 1 ]. There are two commonly used tensioning processes: mono-strand tensioning, where each tendon undergoes individual stress, and multi-strand tensioning, where all cables in a tendon experience simultaneous stress [ 5 ]. Moreover, concerning the location of tendons in the concrete, two types exist based on whether tendons are entirely within the concrete volume or entirely outside it, referred to as internal and external prestressing, respectively.…”

Section: Background Of the Prestressed Reinforced Concretementioning

confidence: 99%

“…Table 3 provides an overview of the properties of GFRP tendons for prestressing purposes based on a literature review. According to the table, the diameter of GFRP tendons ranges from 5 mm [ 5 ] to 11.2 mm [ 50 ]. Due to this limited diameter range, GFRP tendons may not be very suitable for construction projects.…”

Section: Characteristics and Performance Of Frp Tendonsmentioning

confidence: 99%

“…Various types of tendons exist, with notable distinctions between steel tendons and Fiber Reinforced Polymer (FRP) tendons. The latter, in turn, encompasses diverse materials such as Carbon, Glass, Aramid, and Basalt, referred to as CFRP, GFRP, AFRP, and BFRP respectively [ [2] , [3] , [4] , [5] , [6] ].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Performances and properties of steel and composite prestressed tendons – A review

Rafieizonooz,

Jang,

Kim

et al. 2024

Heliyon

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Section: Background Of the Prestressed Reinforced Concretementioning

confidence: 99%

Section: Characteristics and Performance Of Frp Tendonsmentioning

confidence: 99%

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Performances and properties of steel and composite prestressed tendons – A review

Rafieizonooz,

Jang,

Kim

et al. 2024

Heliyon

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“…Reinforcement with external prestressed steel strands is regarded as an efficient way of strengthening bridges and beams that are deteriorating due to increased overloading and progressive structural aging [1][2][3][4][5]. Miyamoto A.…”

Section: Introductionmentioning

confidence: 99%

“…Wire-breakage or rupturing can result in significant losses to society, making the reinforcement of deteriorating pipes essential. Reinforcement with external prestressed steel strands is regarded as an efficient way of strengthening bridges and beams that are deteriorating due to increased overloading and progressive structural aging [1][2][3][4][5]. Miyamoto A.…”

Section: Introductionmentioning

confidence: 99%

Theoretical Study and Application of the Reinforcement of Prestressed Concrete Cylinder Pipes with External Prestressed Steel Strands

et al. 2019

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Prestressed concrete cylinder pipes (PCCPs) can suffer from prestress loss caused by wire-breakage, leading to a reduction in load-carrying capacity or a rupture accident. Reinforcement of PCCPs with external prestressed steel strands is an effective way to enhance a deteriorating pipe’s ability to withstand the design load. One of the principal advantages of this reinforcement is that there is no need to drain the pipeline. A theoretical derivation is performed, and this tentative design method could be used to determine the area of prestressed steel strands and the corresponding center spacing in terms of prestress loss. The prestress losses of strands are refined and the normal stress between the strands and the pipe wall are assumed to be distributed as a trigonometric function instead of uniformly. This derivation configures the prestress of steel strands to meet the requirements of ultimate limit states, serviceability limit states, and quasi-permanent limit states, considering the tensile strength of the concrete core and the mortar coating, respectively. This theory was applied to the reinforcement design of a PCCP with broken wires (with a diameter of 2000 mm), and a prototype test is carried out to verify the effect of the reinforcement. The load-carrying capacity of the deteriorating PCCPs after reinforcement reached that of the original design level. The research presented in this paper could provide technical recommendations for the application of the reinforcement of PCCPs with external prestressed steel strands.

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Experimental study on failure mechanism of point-supported tempered glass panels under fire conditions

et al. 2021

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Losses of prestress in post-tensioned glass beams

Cited by 4 publications

References 11 publications

Performances and properties of steel and composite prestressed tendons – A review

Performances and properties of steel and composite prestressed tendons – A review

Theoretical Study and Application of the Reinforcement of Prestressed Concrete Cylinder Pipes with External Prestressed Steel Strands

Experimental study on failure mechanism of point-supported tempered glass panels under fire conditions

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