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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Journal of Korean Society of Steel Construction
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Journal DOI :
Korean Society of Steel Construction
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Volume & Issues
Volume 14, Issue 5 - Oct 2002
Volume 1, Issue 4 - 00 2002
Volume 14, Issue 6 - 00 2002
Volume 14, Issue 4 - 00 2002
Volume 14, Issue 3 - 00 2002
Volume 14, Issue 2 - 00 2002
Volume 14, Issue 1 - 00 2002
Volume 13, Issue 6 - 00 2002
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A Proposal for Strength Formula of Web Crippling in Trapezoidal
Journal of Korean Society of Steel Construction, volume 13, issue 6, 2002, Pages 7~641
It is proposed in this paper the practical load carrying capacity formula for web crippling in trapezoidal sheeting (deckplate). The parameter functions are derived by investigation of the major parameters influencing of load carrying capacity based on the existing theoretical research with experiment analogical interpretation model. The simple strength formula is proposed in analytic comparison of each parameters with the existing experimental data. From statistical evaluations due to Annex Z of Eurocode 3 the partial safety resistance factors
are calculated and compared with the target value of 1.1.
Behavior of CFT Column to H-Beam Full-Scale Connections with External T-Stiffeners
김영주 ; 강창훈 ; 신경재 ; 오영석 ; 문태섭 ;
Journal of Korean Society of Steel Construction, volume 13, issue 6, 2002, Pages 7~715
This paper represents the behavior of CFT column to H-beam full-scale connection with external T-stiffener. 6 specimens whose T-stiffeners which are compounded of vertical element and horizontal element were made under the parameter of the strength ratio of each elements(vertical element and horizontal element in T-stiffener) to the beam full plastic moment. The analysis-parameters demonstrated in the base of the data that we get in experiment are strength stiffness, and plastic rotational capacity. All of specimen showed stable hysteretic behavior, and the horizontal element is more critical than vertical element in strength and stiffness. The mean beam plastic rotation of all specimen except the TS-2 specimen is 2.97% rad.
An Experimental Study on Behavior of Field Splice Joints of Longitudinal Rib in Orthotropic Steel Decks
최동호 ; 최항용 ;
Journal of Korean Society of Steel Construction, volume 13, issue 6, 2002, Pages 7~621
This study consists of static and fatigue tests to evaluate the behavior on the field splice joint of longitudinal rib in orthotropic steel deck specimens. Specifically, static and influence surface tests are performed for the stress distribution at the scallop area and high-strength bolt connection of longitudinal rib to examine the existence of handhole cover plate and the effect of eccentric loads. The ultimate strength of the field splice joint of longitudinal rib is obtained. In fatigue tests, cracks are observed at the scallop in the lower level test and the catastrophic failure of longitudinal rib is occurred following the failure of handhole cover plate in the higher level test. This study gives a basis for the better understanding of the field splice joint of longitudinal rib.
Buckling Loads and Post-Buckling Behaviors of Shear Deformable Columns with Regular Cross-Section
이병구 ; 이태은 ; 권윤실 ; 김선기 ;
Journal of Korean Society of Steel Construction, volume 13, issue 6, 2002, Pages 10~683
Numerical methods are developed for solving the elastica and buckling load of tapered columns with shear deformation, subjected to a compressive end load. The linear, parabolic and sinusoidal tapers with the regular polygon cross-sections are considered, whose material volume and span length are always held constant. The differential equations governing the elastica of buckled column are derived. The Runge-Kutta method is used to integrate the differential equations, and the Regula-Falsi method is used to determine the rotation at left end and the buckling load, respectively. The numerical methods developed herein for computing the elastica and the buckling loads of the columns are found to be efficient and reliable.
An Study on the Stiffened Effect of K-type Tubular Connection
김우범 ; 이영정 ; 김갑순 ; 정수영 ;
Journal of Korean Society of Steel Construction, volume 13, issue 6, 2002, Pages 11~609
It is almost impossible to evaluate the ultimate strength theoretically, because the behavior of Gusset-Tube connection stiffened with rib-plate is considerably complicate. Therefore in this study a finite element model of gusset-tube connection stiffened with rib-plate was established. The validity of finite element analysis was examined through comparing with previous experimental result and the behavior and strength of the connection was examined. From the parametric study considering lateral force ratio, eccentricity, gusset length based on finite element model, the stiffened effect was estimated and stiffening method was proposed.
Free Vibration of Stepped Horizontally Curved Members Supported by Two-Parameter Elastic Foundation
이병구 ; 이태은 ; 안대순 ; 김무영 ;
Journal of Korean Society of Steel Construction, volume 13, issue 6, 2002, Pages 12~651
The main purpose of this paper is to present an analytical method for free vibration of stepped horizontally curved members on two-parameter elastic foundation. The ordinary differential equations governing the free vibration of such beams are derived as non-dimensional forms including the effects of rotatory inertia and shear deformation. The governing equations are solved numerically for the circular, parabolic, sinusoidal and elliptic curved beams with hinged-hinged, hinged-clamped and clamped-clamped end constraints. As the numerical results, the lowest four natural frequency parameters are presented as the functions of various non-dimensional system parameters. Also the typical mode shapes are presented.
A Study on Characteristic of Underground Corrugated Steel Structure
박연수 ; 서병철 ; 김병하 ; 박선준 ;
Journal of Korean Society of Steel Construction, volume 13, issue 6, 2002, Pages 12~693
Ductility pipes, like corrugated steel structures, are expected to reduce its deformation when they are arranged in a row. Verifying this assumption can help make economic designs possible. Though checking the deformation of ductility pipe structures, like corrugated steel structure, decreasing deformation was found when the pipes are arranged in a row. In this way, arranging a corrugated steel structures in a row shows decreased deformation compared to corrugated steel pipes arranged in a single structure because the bedding effect restrains deformation. The deformation rates of reduction are proportionate to the diameter of the corrugated steel structure.
Shape & Topology Optimum Design of Truss Structures Using Genetic Algorithms
박춘욱 ; 여백유 ; 강문영 ;
Journal of Korean Society of Steel Construction, volume 13, issue 6, 2002, Pages 12~673
The objective of this study is the development of size, shape and topology discrete optimum design algorithm which is based on the genetic algorithm. The algorithm can perform both shape and topology optimum designs of trusses. The developed algorithm was implemented in a computer program. For the optimum design, the objective function is the weight of trusses and the constraints are stress and displacement. The basic search method for the optimum design is the genetic algorithm. The algorithm is known to be very efficient for the discrete optimization. The genetic algorithm consists of genetic process and evolutionary process. The genetic process selects the next design points based on the survivability of the design points selected form the genetic process. The evolutionary process evaluates the survivability of the design points. The evolutionary process evaluates the survivability of the design points selected form the genetic process. The efficiency and validity of the developed size, shape and topology discrete optimum design algorithm was verified by applying the algorithm to optimum design examples.
An Experimental study on the Behavior of Composite Materials Bridge Decks for Use in Deteriorated Bridge Decks Replacement
지효선 ; 손병직 ; 장석윤 ;
Journal of Korean Society of Steel Construction, volume 13, issue 6, 2002, Pages 13~631
The behavior of composite materials bridge decks for use in deteriorated bridge decks replacement are investigated experimentally in this study. As for the performance evaluation of bridge decks, experimental studies on the 5 test specimens with 1/10 scale of full size were carried out. Three specimens were fabricated from sandwich upper flange and two specimens were fabricated from laminated upper flange. The constituents of bridge decks were glass fiber performs and epoxy resin. The experimental results, i.e., the maximum strength stiffness, stiffness, and deformation capacity, were summarized. The results of the finite element analysis were compared with the experimental results for the verification of validity.
Exact Dynamic Stiffness Matrix of Nonsymmetric Thin-walled Beams Subjected to Eccentrically Axial Forces
김문영 ; 윤희택 ;
Journal of Korean Society of Steel Construction, volume 13, issue 6, 2002, Pages 14~703
Derivation procedures of exact dynamic stiffness matrices of thin-walled straight beams subjected to eccentrically axial forces are rigorously presented for the spatial free vibration analysis. An exact dynamic stiffness matrix is established from governing equations for a uniform beam element with nonsymmetric thin-walled cross section. First this numerical technique is accomplished via a generalized linear eigenvalue problem by introducing 14 displacement parameters and a system of linear algebraic equations with complex matrices. Thus, the displacement functions of displacement parameters are exactly derived and finally exact stiffness matrices are determined using element force-displacement relationships. The natural frequencies of nonsymmetric thin-walled straight beams are evaluated and compared with analytical solutions or results by thin-walled beam element using the cubic Hermitian polynomials and ABAQU's shell elements in order to demonstrate the validity of this study.
Nonlinear Viscoelastic Analysis of Reticulated Spatial Truss Composed of Composite Materials
한성천 ; 장석윤 ;
Journal of Korean Society of Steel Construction, volume 13, issue 6, 2002, Pages 24~661
The present study is concerned with the arc-length method in the investigation of the large deflection behavior of spatial structures with composite materials. This study should be able to trace the main equilibrium path by automatically varying the arc-length size of individual solution steps with the variation of the curvature of the nonlinear equilibrium path. A quasi-elastic method is used for the solution for viscoelastic analysis of the reticulated spatial structures. Elastic modulus of composite materials is defined by micro mechanical materials modeling method and nonlinear equilibrium path is traced with various load types. To demonstrate the effectiveness of the present strategies, numerical examples of reticulated spatial truss is given and compared with solutions using other methods.