Evaluation on structural behaviors of prestressed composite beams using external prestressing member

Jin Hee Ahn, Chi Young Jung, Sang Hyo Kim

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

In this study, experimental, numerical, and analytical approaches were carried out to evaluate the behavior and prestressing effect of prestressed composite beam by external tendon and cover plate. Behavior of prestressed composite beam, load-carrying capacity, effects of prestressing, and ultimate strength were estimated. The contribution of the section increase of the prestressing method using tendon was less than the prestressing method using cover plate. In accordance with numerical and analytical approaches, the ultimate strength of the prestressed composite beam is shown to be the same value because strength is determined according to the plastic resistance moment and the plastic neutral axis; however, both plastic resistance moment and neutral axis are not affected by prestressing force but affected by sectional stiffness of the prestressing member. Based on these approaches, we concluded that the prestressing method using tendon can be useful in applications without an increase in self-weight, and the prestressing method using high-strength cover plate can be applied to reduce the deflection of the composite beam. The prestressing method using high-strength cover plate can also be used to induce prestress of the composite beam in the case of a large deflection due to a smaller sectional stiffness of the composite beam.

Original languageEnglish
Pages (from-to)247-275
Number of pages29
JournalStructural Engineering and Mechanics
Volume34
Issue number2
DOIs
Publication statusPublished - 2010 Jan 30

Fingerprint

Prestressing
Composite materials
Tendons
Plastics
Stiffness
Load limits

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Building and Construction
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

@article{4bdca9a2912d494eae83891607409bc5,
title = "Evaluation on structural behaviors of prestressed composite beams using external prestressing member",
abstract = "In this study, experimental, numerical, and analytical approaches were carried out to evaluate the behavior and prestressing effect of prestressed composite beam by external tendon and cover plate. Behavior of prestressed composite beam, load-carrying capacity, effects of prestressing, and ultimate strength were estimated. The contribution of the section increase of the prestressing method using tendon was less than the prestressing method using cover plate. In accordance with numerical and analytical approaches, the ultimate strength of the prestressed composite beam is shown to be the same value because strength is determined according to the plastic resistance moment and the plastic neutral axis; however, both plastic resistance moment and neutral axis are not affected by prestressing force but affected by sectional stiffness of the prestressing member. Based on these approaches, we concluded that the prestressing method using tendon can be useful in applications without an increase in self-weight, and the prestressing method using high-strength cover plate can be applied to reduce the deflection of the composite beam. The prestressing method using high-strength cover plate can also be used to induce prestress of the composite beam in the case of a large deflection due to a smaller sectional stiffness of the composite beam.",
author = "Ahn, {Jin Hee} and Jung, {Chi Young} and Kim, {Sang Hyo}",
year = "2010",
month = "1",
day = "30",
doi = "10.12989/sem.2010.34.2.247",
language = "English",
volume = "34",
pages = "247--275",
journal = "Structural Engineering and Mechanics",
issn = "1225-4568",
publisher = "Techno Press",
number = "2",

}

Evaluation on structural behaviors of prestressed composite beams using external prestressing member. / Ahn, Jin Hee; Jung, Chi Young; Kim, Sang Hyo.

In: Structural Engineering and Mechanics, Vol. 34, No. 2, 30.01.2010, p. 247-275.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Evaluation on structural behaviors of prestressed composite beams using external prestressing member

AU - Ahn, Jin Hee

AU - Jung, Chi Young

AU - Kim, Sang Hyo

PY - 2010/1/30

Y1 - 2010/1/30

N2 - In this study, experimental, numerical, and analytical approaches were carried out to evaluate the behavior and prestressing effect of prestressed composite beam by external tendon and cover plate. Behavior of prestressed composite beam, load-carrying capacity, effects of prestressing, and ultimate strength were estimated. The contribution of the section increase of the prestressing method using tendon was less than the prestressing method using cover plate. In accordance with numerical and analytical approaches, the ultimate strength of the prestressed composite beam is shown to be the same value because strength is determined according to the plastic resistance moment and the plastic neutral axis; however, both plastic resistance moment and neutral axis are not affected by prestressing force but affected by sectional stiffness of the prestressing member. Based on these approaches, we concluded that the prestressing method using tendon can be useful in applications without an increase in self-weight, and the prestressing method using high-strength cover plate can be applied to reduce the deflection of the composite beam. The prestressing method using high-strength cover plate can also be used to induce prestress of the composite beam in the case of a large deflection due to a smaller sectional stiffness of the composite beam.

AB - In this study, experimental, numerical, and analytical approaches were carried out to evaluate the behavior and prestressing effect of prestressed composite beam by external tendon and cover plate. Behavior of prestressed composite beam, load-carrying capacity, effects of prestressing, and ultimate strength were estimated. The contribution of the section increase of the prestressing method using tendon was less than the prestressing method using cover plate. In accordance with numerical and analytical approaches, the ultimate strength of the prestressed composite beam is shown to be the same value because strength is determined according to the plastic resistance moment and the plastic neutral axis; however, both plastic resistance moment and neutral axis are not affected by prestressing force but affected by sectional stiffness of the prestressing member. Based on these approaches, we concluded that the prestressing method using tendon can be useful in applications without an increase in self-weight, and the prestressing method using high-strength cover plate can be applied to reduce the deflection of the composite beam. The prestressing method using high-strength cover plate can also be used to induce prestress of the composite beam in the case of a large deflection due to a smaller sectional stiffness of the composite beam.

UR - http://www.scopus.com/inward/record.url?scp=77954515237&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77954515237&partnerID=8YFLogxK

U2 - 10.12989/sem.2010.34.2.247

DO - 10.12989/sem.2010.34.2.247

M3 - Article

VL - 34

SP - 247

EP - 275

JO - Structural Engineering and Mechanics

JF - Structural Engineering and Mechanics

SN - 1225-4568

IS - 2

ER -