Experimental study on joint of spliced steel-PSC hybrid girder, Part I: Proposed parallel-perfobond-rib-type joint

Sang Hyo Kim, Chan Goo Lee, Jin Hee Ahn, Jeong Hun Won

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

The object of this study is to determine and propose a suitable joint type for spliced hybrid I-girder bridges consisting of steel girders at the mid-span and PSC (prestressed concrete) girders at the supports. Three joint types are experimentally tested on small-scale steel-PSC hybrid beams to determine the type offering the best combination of structural capacity and constructional convenience. One joint type, first suggested and trialed in the present study, is composed of multiple perfobond rib connectors attached in parallel to upper and lower plates located between the steel girder and the PSC girder. The two other types incorporate the stud connectors, which are widely used in connecting steel and concrete, but differ in the amount of reinforcement. The test results reveal that a joint consisting of parallel perfobond ribs and a joint consisting of studs with sufficient reinforcement show the similar beam strength and failure modes resulting from the failure of the PSC components. Notably, beams of the proposed joint type consisting of perfobond ribs, compared to those with studs, show higher stiffness and strength prior to reaching their ultimate strength, as well as lower strains in the joint. Indeed, with the parallel-perfobond-rib-type joint, advances in constructional convenience as well as structural capacity can be anticipated. Thus, it is concluded that the proposed joint type is a more suitable system for spliced steel-PSC hybrid girder bridges.

Original languageEnglish
Pages (from-to)2382-2397
Number of pages16
JournalEngineering Structures
Volume33
Issue number8
DOIs
Publication statusPublished - 2011 Aug 1

Fingerprint

Prestressed concrete
Steel
Reinforcement
Concrete beams and girders
Beams and girders
Failure modes
Stiffness
Concretes

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering

Cite this

@article{068ce11f82504fe38299e77e6f9f1b5c,
title = "Experimental study on joint of spliced steel-PSC hybrid girder, Part I: Proposed parallel-perfobond-rib-type joint",
abstract = "The object of this study is to determine and propose a suitable joint type for spliced hybrid I-girder bridges consisting of steel girders at the mid-span and PSC (prestressed concrete) girders at the supports. Three joint types are experimentally tested on small-scale steel-PSC hybrid beams to determine the type offering the best combination of structural capacity and constructional convenience. One joint type, first suggested and trialed in the present study, is composed of multiple perfobond rib connectors attached in parallel to upper and lower plates located between the steel girder and the PSC girder. The two other types incorporate the stud connectors, which are widely used in connecting steel and concrete, but differ in the amount of reinforcement. The test results reveal that a joint consisting of parallel perfobond ribs and a joint consisting of studs with sufficient reinforcement show the similar beam strength and failure modes resulting from the failure of the PSC components. Notably, beams of the proposed joint type consisting of perfobond ribs, compared to those with studs, show higher stiffness and strength prior to reaching their ultimate strength, as well as lower strains in the joint. Indeed, with the parallel-perfobond-rib-type joint, advances in constructional convenience as well as structural capacity can be anticipated. Thus, it is concluded that the proposed joint type is a more suitable system for spliced steel-PSC hybrid girder bridges.",
author = "Kim, {Sang Hyo} and Lee, {Chan Goo} and Ahn, {Jin Hee} and Won, {Jeong Hun}",
year = "2011",
month = "8",
day = "1",
doi = "10.1016/j.engstruct.2011.04.012",
language = "English",
volume = "33",
pages = "2382--2397",
journal = "Engineering Structures",
issn = "0141-0296",
publisher = "Elsevier BV",
number = "8",

}

Experimental study on joint of spliced steel-PSC hybrid girder, Part I : Proposed parallel-perfobond-rib-type joint. / Kim, Sang Hyo; Lee, Chan Goo; Ahn, Jin Hee; Won, Jeong Hun.

In: Engineering Structures, Vol. 33, No. 8, 01.08.2011, p. 2382-2397.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Experimental study on joint of spliced steel-PSC hybrid girder, Part I

T2 - Proposed parallel-perfobond-rib-type joint

AU - Kim, Sang Hyo

AU - Lee, Chan Goo

AU - Ahn, Jin Hee

AU - Won, Jeong Hun

PY - 2011/8/1

Y1 - 2011/8/1

N2 - The object of this study is to determine and propose a suitable joint type for spliced hybrid I-girder bridges consisting of steel girders at the mid-span and PSC (prestressed concrete) girders at the supports. Three joint types are experimentally tested on small-scale steel-PSC hybrid beams to determine the type offering the best combination of structural capacity and constructional convenience. One joint type, first suggested and trialed in the present study, is composed of multiple perfobond rib connectors attached in parallel to upper and lower plates located between the steel girder and the PSC girder. The two other types incorporate the stud connectors, which are widely used in connecting steel and concrete, but differ in the amount of reinforcement. The test results reveal that a joint consisting of parallel perfobond ribs and a joint consisting of studs with sufficient reinforcement show the similar beam strength and failure modes resulting from the failure of the PSC components. Notably, beams of the proposed joint type consisting of perfobond ribs, compared to those with studs, show higher stiffness and strength prior to reaching their ultimate strength, as well as lower strains in the joint. Indeed, with the parallel-perfobond-rib-type joint, advances in constructional convenience as well as structural capacity can be anticipated. Thus, it is concluded that the proposed joint type is a more suitable system for spliced steel-PSC hybrid girder bridges.

AB - The object of this study is to determine and propose a suitable joint type for spliced hybrid I-girder bridges consisting of steel girders at the mid-span and PSC (prestressed concrete) girders at the supports. Three joint types are experimentally tested on small-scale steel-PSC hybrid beams to determine the type offering the best combination of structural capacity and constructional convenience. One joint type, first suggested and trialed in the present study, is composed of multiple perfobond rib connectors attached in parallel to upper and lower plates located between the steel girder and the PSC girder. The two other types incorporate the stud connectors, which are widely used in connecting steel and concrete, but differ in the amount of reinforcement. The test results reveal that a joint consisting of parallel perfobond ribs and a joint consisting of studs with sufficient reinforcement show the similar beam strength and failure modes resulting from the failure of the PSC components. Notably, beams of the proposed joint type consisting of perfobond ribs, compared to those with studs, show higher stiffness and strength prior to reaching their ultimate strength, as well as lower strains in the joint. Indeed, with the parallel-perfobond-rib-type joint, advances in constructional convenience as well as structural capacity can be anticipated. Thus, it is concluded that the proposed joint type is a more suitable system for spliced steel-PSC hybrid girder bridges.

UR - http://www.scopus.com/inward/record.url?scp=79958073020&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79958073020&partnerID=8YFLogxK

U2 - 10.1016/j.engstruct.2011.04.012

DO - 10.1016/j.engstruct.2011.04.012

M3 - Article

AN - SCOPUS:79958073020

VL - 33

SP - 2382

EP - 2397

JO - Engineering Structures

JF - Engineering Structures

SN - 0141-0296

IS - 8

ER -