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ANALYSIS OF EXTERNALLY PRESTRESSED SEGMENTAL BOX GIRDERS UNDER BENDING, SHEAR, AND TORSION

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Last updated: 13 Dec 2022

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Analysis of Externally Prestressed Segmental Bridges (EPSBs) still needs more effort. At an earlier stage
an experimental investigation was carried out by the authors. The expe… was consisted of ten specimens having different joint configurations
and it was divided into two phases. The first phase contains five spec…or the first phase were different levels of prestressing force in ten
large-reinforced shear key
steel shear connectors
and UHP–SHCC joint connecting the tension flange. This paper proposed …forces’ equilibrium. Skew Bending Model that inspected by Huan and Li
2006
to calculate the load-carrying capacity for segmental beams with internal unbonded tendons subjected to combined bending
Shear
and torsion modified to calculate the ultimate capacity of EPSBs and gave satisfactory agreement with the experimental results
ANALYSIS OF EXTERNALLY PRESTRESSED SEGMENTAL BOX GIRDERS UNDER BENDING, SHEAR, AND TORSION
ICASGE'23

Abstract

Analysis of Externally Prestressed Segmental Bridges (EPSBs) still needs more effort. At an earlier stage, an experimental investigation was carried out by the authors. The experimental investigation was consisted of ten specimens having different joint configurations, and it was divided into two phases. The first phase contains five specimens constructed with multiple small-amplitude shear keys in accordance with AASHTO. The parameters selected for the first phase were different levels of prestressing force in tendons as well as different levels of applied torsion. The second phase contained four segmental specimens and a monolithic one. The joints in the second phase took four forms: multiple small-amplitude shear keys, large-reinforced shear key, steel shear connectors, and UHP–SHCC joint connecting the tension flange. This paper proposed an analytical procedure to calculate the full prestressing load and partial prestressing load based on the forces' equilibrium. Skew Bending Model that inspected by Huan and Liu, 2006, to calculate the load-carrying capacity for segmental beams with internal unbonded tendons subjected to combined bending, shear, and torsion modified to calculate the ultimate capacity of EPSBs and gave satisfactory agreement with the experimental results.

Keywords

Analysis of Externally Prestressed Segmental Bridges (EPSBs) still needs more effort. At an earlier stage, an experimental investigation was carried out by the authors. The experimental investigation was consisted of ten specimens having different joint configurations, and it was divided into two phases. The first phase contains five specimens constructed with multiple small-amplitude shear keys in accordance with AASHTO. The parameters selected for the first phase were different levels of prestressing force in ten, large-reinforced shear key, steel shear connectors, and UHP–SHCC joint connecting the tension flange. This paper proposed an analytical procedure to calculate the full prestressing load and partial prestressing load based on the forces’ equilibrium. Skew Bending Model that inspected by Huan and Li, 2006, to calculate the load-carrying capacity for segmental beams with internal unbonded tendons subjected to combined bending, Shear, and torsion modified to calculate the ultimate capacity of EPSBs and gave satisfactory agreement with the experimental results

Authors

First Name

Mahmoud

Last Name

Abdel-Aziz

Affiliation

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Orcid

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First Name

Tarek

Last Name

El-Shafiey

Affiliation

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City

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Orcid

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First Name

Abdel-Hakeem

Last Name

Khalil

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Orcid

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First Name

Emad

Last Name

Etman

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Orcid

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First Name

Mohammed

Last Name

Hussein

Affiliation

undefined

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-

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Volume

ICASGE2021

Issue Date

1 Jan 2021

Publish Date

29 May 2022

Article File

1bf4bf76-83bc-5ec3-a11f-7afaa1579ced

PDF . 21B

Link

https://icasge.conferences.ekb.eg/article_1578.html

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307

Publication Type

Conference

Publication Title

ICASGE'23

Publication Link

https://icasge.conferences.ekb.eg/

Details

Type

Article

Locale

en

Created At

13 Dec 2022