Go to the main menu
Skip to content
Go to bottom
REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of Korean Society of Steel Construction
Journal Basic Information
Journal DOI :
Korean Society of Steel Construction
Editor in Chief :
Volume & Issues
Volume 26, Issue 6 - Dec 2014
Volume 26, Issue 5 - Oct 2014
Volume 26, Issue 4 - Aug 2014
Volume 26, Issue 3 - Jun 2014
Volume 26, Issue 2 - Apr 2014
Volume 26, Issue 1 - Feb 2014
Selecting the target year
Experimental Study of Flexural Behavior of Steel Beam Strengthened with the Fiber Reinforced Polymer Plastic(FRP) Strips
Choi, Sung Mo ; Park, Jai Woo ;
Journal of Korean Society of Steel Construction, volume 26, issue 2, 2014, Pages 69~79
DOI : 10.7781/kjoss.2014.26.2.069
This paper presents the experimental results of flexural behavior of steel beam strengthened with fiber reinforced polymer plastic (FRP) strips subjected to static bending loading. Four H beams were fabricated strengthened with aramid strips and carbon strips and one control specimen were also fabricated. Among them two specimens were strengthened with partial length. The H-beams had two types of failure mode, depending on the length of the FRP strips:(1) strip debonding in beams with partial length reinforcement and (2) strip rupture in beams with full length reinforcement. From the test, it was observed that maximum increase of 16% was also achieved in bending-load capacity.
Improvement of Shear Connection Design Procedure using Connections Standardization Database
Kim, Hee Dong ; Hwang, In Kyu ; Lee, Myung Jae ;
Journal of Korean Society of Steel Construction, volume 26, issue 2, 2014, Pages 81~89
DOI : 10.7781/kjoss.2014.26.2.081
Investigation results on shear connections design procedure which is conducted in Korea show that there are many communication problems between structural engineer and detailer, and there are unnecessary work procedures. To solve conventional connection design procedure problems, improved shear connection design procedure is suggested. Most of suggested design procedure is controlled by structure engineer, and the introduction of connections standardization makes computer aided design possible. Standardized connection details are satisfied with structural safety and constructability, and it improves design efficiency. Many problems which are caused by conventional design procedure are fundamentally blocked by using suggested design procedure.
Flange Local Buckling(FLB) for Flexural Strength of Plate Girders with High Performance Steel(HSB 800)
Kim, Jeong Hun ; Kim, Kyoung Yul ; Lee, Jeong Hwa ; Kim, Kyung Sik ; Kang, Young Jong ;
Journal of Korean Society of Steel Construction, volume 26, issue 2, 2014, Pages 91~103
DOI : 10.7781/kjoss.2014.26.2.091
High performance steel for bridges(HSB 800) with a minimum tensile stress of 800MPa was recently developed. However, the study for local buckling behavior of plate girders considering interactive effects of flanges and webs is still insufficient. In this study, the flange local buckling(FLB) strength of plate girders with HSB 800 was evaluated by nonlinear finite element analysis. The flanges and webs of plate girders having I-section were modeled as 3D shell elements in the nonlinear analysis. Initial imperfection and residual stress were imposed on the plate girder. The high performance steel was modeled as a multi-linear material. Thus, parametric study of compression flanges with a compact, noncompact and slender web was performed. The flange local buckling behavior of plate girders was analyzed, and the nonlinear analysis results were compared with the nominal flexural strength of both AASHTO LRFD(2012) and KHBDC LSD(2012) codes.
Shear Buckling Strength and Behaviors of Steel Plate Girder with Asymmetrical Shear Resistant Web Panel by Local Corrosion
Lee, Myoung Jin ; Ahn, Jin Hee ; Kim, In Tae ;
Journal of Korean Society of Steel Construction, volume 26, issue 2, 2014, Pages 105~118
DOI : 10.7781/kjoss.2014.26.2.105
The number of the deteriorated bridge has been sharply increased due to the increase in the bridge service period in Korea. Local corrosion problem of structural member can be occurred according to atmospheric corrosion environments based on the installation location of steel bridges. Especially, in case of the plate girder bridge, corrosion damage is concentrated on the web panel and stiffener at girder end. An asymmetrical shear resistant web section in the plate girder bridge can be caused from the local corrosion of the web panel, because local corrosion is not symmetrically occurred to the bridge. In this study, therefore, the shear buckling strength and behavior of a plate girder with asymmetrically corroded web panel was numerically evaluated using FE analysis, which was considering an aspect ratio and corrosion damage level of web panel. The shear buckling strength reduction of an asymmetrical shear resistant web panel was compared and evaluated according to corroded volume ratio for a web panel and for diagonal tension field of a web panel.
A Proposal for an Evaluation of Flexural Resistance of Longitudinally Stiffened Plate Girder with Slender Web
Park, Yong Myung ; Lee, Kun Joon ; Choi, Byung Ho ; Back, Sung Yong ;
Journal of Korean Society of Steel Construction, volume 26, issue 2, 2014, Pages 119~132
DOI : 10.7781/kjoss.2014.26.2.119
In this paper, a series of numerical analyses were performed to evaluate the flexural resistance of steel plate girder with longitudinally stiffened and slender web. The SM490 steel was adopted for the study and the flexural resistances evaluated from the numerical analysis were compared with those suggested by the AASHTO LRFD and the Eurocode 3 codes, respectively. It was found that the AASHTO LRFD code could considerably underestimate the flexural resistance as the web slenderness becomes smaller. This comes from the fact that current AASHTO LRFD code does not consider a possible increase of slenderness limits for compact and noncompct web, and also an additional effect of web restraint on the rotation of compression flange in longitudinally stiffened web. Therefore, the slenderness limits of web and flange have been newly proposed for the plate girders with longitudinally stiffened web and it is analytically verified that the flexural resistance can be appropriately estimated by applying the proposed slenderness limits to the AASHTO LRFD code.
Evaluation of the Initial Rotational Stiffness of a Double Split Tee Connection
Kim, Hee Dong ; Yang, Jae Guen ; Lee, Jae Yun ; Lee, Hyung Dong ;
Journal of Korean Society of Steel Construction, volume 26, issue 2, 2014, Pages 133~142
DOI : 10.7781/kjoss.2014.26.2.133
Double split tee connection is a full strength-partial restrained connection that suitable for ordinary moment frame and special moment frame which demonstrates behavior characteristics depending on the stiffness ratio of columns and beams, changes in the geometric shape of the T-stub, number of fasteners and effect of panel zone. For the double split tee connection to ensure structurally safe behavior, it needs to exhibit sufficient strength, stiffness and ductile capacity. This study sought to investigate the effects of the moment-rotation angle relationship of the double split tee connection and to evaluate the initial rotational stiffness of the double split tee connection depending on changes in the geometric shape of the T-stub. To this end, two different double split tee connection specimens are experimented which designed to change geometric parameter values (
) of the T-stub, and a three-dimensional finite element analysis was performed.