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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 11, Issue 6 - Dec 1999
Volume 11, Issue 5 - Oct 1999
Volume 11, Issue 4 - Aug 1999
Volume 11, Issue 3 - Jun 1999
Volume 11, Issue 2 - Apr 1999
Volume 11, Issue 1 - Feb 1999
Selecting the target year
Behavior of N-joints using Square Hollow Sections in Truss
Lee, Sang Ho ; Lee, Sang Sup ; Bae, Kyou Woong ; Moon, Tae Sup ;
Journal of Korean Society of Steel Construction, volume 11, issue 3, 1999, Pages 251~258
The aim of this paper is to examine the behavior of the N-joints using square hollow sections and to improve the structural performance without reinforcing the joints. The selected parameters are the ratio of web to chord width, gap to chord width and eccentricity to chord width. Comparison between test results and codes shows the fact that the NPE-type has superior structural properties to the NSE-type in ultimate strength and deformation capacity. The experimental formulae based on the regression analysis are proposed. Ultimate strength formula employed in eurocode 3 is revised and proposed for the NSE-type. And ultimate strength formula including the eccentricity to chord width ratio which effects on the ultimate strength is proposed for the NPE-type.
A Study on Standard Design Procedure and Optimum Dimension of Embedded Steel-Plate Cell Structure
Park, Yong Myung ; Kim, Tae Jin ;
Journal of Korean Society of Steel Construction, volume 11, issue 3, 1999, Pages 259~270
In this study, establishment of standard design procedure and optimum dimension of the embedded steel-plate cellular bulkheads for seawall structures in deep water sites has been presented. A computer program was developed to asses feasible dimensions of steel-plate cell, and general equations to determine optimum cell diameter and embedment depth are derived for sand. A model experiment to verify the necessary driving force of vibratory hammer system was also performed and driving force data pertinent to optimum cell dimension are presented.
Inelastic Analyses and Simplified Equations for Improved T-stub Element Used at Semi-Rigid Connections
Cho, Jae Chul ; Kim, Won Ki ; Lee, Myung Jae ;
Journal of Korean Society of Steel Construction, volume 11, issue 3, 1999, Pages 271~279
Recently, studies on semi-rigid beam-to-column connections have been done to develop a T-stub element with separators between column face and T-stub flange. In this paper, inelastic analyses for the improved T-stub element are performed, and their results are compared with existing experimental results. The inelastic analyses using gap elements between column face and the separator, and initial stresses at the high-tension bolts result in good agreement with experimental results. Simplified design methods estimating the initial stiffness and the strength of the semi-rigid connection for compression force are proposed.
Stability of Continuous Welded Rail Track under Thermal Load
Kang, Young Jong ; Lim, Nam Hyoung ; Shin, Jeong Ryol ; Yang, Jae Seong ;
Journal of Korean Society of Steel Construction, volume 11, issue 3, 1999, Pages 281~290
For many decades, the railway was constructed using tracks with jointed rails of relatively short lengths in accordance with rolling and handling technology. The joints cause many drawbacks in the track and lead to significant maintenance cost. So, railroad engineers became interested in eliminating joints to increase service loads ana speeds by improving rolling, welding, and fastening technology. Continuous welded rail(CWR) track has many advantages over the conventional jointed-rail track. But, in the case of the elimination of rail joints, it may cause the track to be suddenly buckled laterally by thermal loads. In this paper, CWR track model and CWRB program are developed for linear buckling analysis using finite element method. Rail element with a total of 14 degrees of freedom is used. The stiffness of the fastener, tie, and ballast bed are included by a set of spring elements. The investigation on the buckling modes and temperature of CWR track is presented.
An Experimental Study on the Block Shear Rupture of Flange for H-Beam Tension Members
Kim, Bo Young ; Kwon, Chan ; Choi, Mun Sik ;
Journal of Korean Society of Steel Construction, volume 11, issue 3, 1999, Pages 291~299
In this paper, an experimental study have been many studies on the propriety of block shear design code. according to limited state design criteria of steel structures recently established in Korea, by an experiment on the joint of H-Beam Flange tension members. The objects of this study were to compare with the results of other studies on block shear rupture mode and ultimate capacity, and to evaluate the propriety of the design criteria. The result is that the joint happened, two types, tension yield-shear ruptures and shear yield-tension ruptures, and the experimental rupture load was 23% higher than the capacity entered in the criteria design code In this criteria, it was found that ultimate strength of block shear of H-Beam Flange was lowly estimated. Therefore, we emphasize the need of estimates on the block shear rupture by carrying out many studies in this field.
An Analytical Study to evaluate Existing Stress of Steel Structural Member
Kim, Kap Sun ; Shin, Eui Gyun ; Kim, Woo Bum ; Chung, Soo Yong ;
Journal of Korean Society of Steel Construction, volume 11, issue 3, 1999, Pages 301~309
The purpose of this study is to develop a method to deduce existing stress of steel member in inelastic range. Based on the previous experimental study, modified factor method considering the local plastification due to stress concentration was proposed. Finite element analysis was performed to investigate the stress distribution around hole and the results of the finite element analysis were compared with those from the Hole Drilling Method in elastic-plastic range. As a result of applying a modified factor method, proposed method shows very good approximation of 2% error for exact value of stress in the plastic range.
An Experimental Study on the Behavior of Column-to-Column Connections of Prefabricated Concrete Filled Tubes
Kim, Jae Hoon ; Lee, Myung Jae ;
Journal of Korean Society of Steel Construction, volume 11, issue 3, 1999, Pages 311~318
Concrete filled tubular(CFT) members have many structural and constructional advantages. The prefabrication of CFT members can be thought an idea for the good qualify control of concrete. The objective of this study is to suggest the construction method of prefab CFT beam-columns. Tests are performed to understand their structural behaviors. The opening space between prefab CFT members and the size of tubular members are the parameters of this study. The results of this study will be based on the suggestion of prefab CFT.
The Study about the Fatigue Strength Improvement Mechanism by the Processing of Fillet Welded Joint
Lim, Cheong Kweon ; Park, Moon Ho ; Chang, Chun Ho ;
Journal of Korean Society of Steel Construction, volume 11, issue 3, 1999, Pages 319~327
This study makes mechanism of the fatigue strength improvement by the processing of weld toe clear for the vertical cross rib specimens which was made fillet weld joint, also it proposes to the appropriate later processing. As a result of tension fatigue test, the fatigue strength improvement could have been seen in later processed specimens than as-weld specimens. Especially fatigue crack initial life
increased in specimens which processed grinder after hammer-peening. Also, fatigue crack propagation life
improved more in hammer-peening specimens than as-weld or TIG specimens. It thinks that
is because of the geometrical shape of weld toe, i.e. the relaxation of the stress concentration and also that
is because the big compression residual stress which was introduced in the surface by hammer-peening is restraining the propagation of fatigue crack.