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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 27, Issue 6 - Dec 2015
Volume 27, Issue 5 - Oct 2015
Volume 27, Issue 4 - Aug 2015
Volume 27, Issue 3 - Jun 2015
Volume 27, Issue 2 - Apr 2015
Volume 27, Issue 1 - Feb 2015
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Experimental Study on Interfacial Bond Stress between Aramid FRP Strips and Steel Plates
Park, Jai Woo ; Ryoo, Jae Yong ; Choi, Sung Mo ;
Journal of Korean Society of Steel Construction, volume 27, issue 4, 2015, Pages 359~370
DOI : 10.7781/kjoss.2015.27.4.359
This paper presents the experimental results for the interfacial bond behaviour between AFRP strip and steel members. The objective of this paper is to examine the interfacial behavior and to evaluate the interfacial bond stress between Aramid FRP strips and steel plates. The test variables were bond length and AFRP thickness. 18 specimens were fabricated and one-face shear type bond tests were conducted in this study. There were two types of failure mode which were debonding and delamination between AFRP strip and steel plates. From the test, the load was increased with the increasing of bond length and AFRP thickness, which was observed that maximum increase of 63 and 86% were also achieved in load with the increasing of bond length and AFRP thickness, respectively. Finally, bond and slip characteristics had the elastic bond-slip model and it was observed that bond strength and fracture energy were not affected by bond length and AFRP thickness.
Evaluation of Torsional Behaviour for the Catwalk System on A Suspension Bridge by Cross Bridge Interval
Lee, Ho ; Kim, Ho Kyung ; Kim, Gi Nam ;
Journal of Korean Society of Steel Construction, volume 27, issue 4, 2015, Pages 371~376
DOI : 10.7781/kjoss.2015.27.4.371
This study was conducted for the torsional behavior of catwalk system which is a temporary structure on a suspension bridge. The torsional deformation of the catwalk structure has a significant effect on the workability and safety of workers during main cable erection. For this reason, the torsional deformation of catwalk is controlled to be acceptable levels below by adjusting the cross bridge interval in design stage. This study analyzed the effect of separation between cross bridge associated with twist safety of catwalk system. For the analytical approach, a detailed analysis model was created including cross bridge. Both wind load within the wind velocity range that allows the construction and eccentric load of Prefabricated Parallel Wire Strand were analyzed by analysis model. Result of study shows that separation between cross bridges has a significant effect on the torsional behavior of the catwalk.
Buckling Strength of Concentrically Loaded High-Strength Steel Columns with Intermediate Slenderness
Kim, Dae Kyung ; Lee, Cheol Ho ; Han, Kyu Hong ; Kim, Jin Ho ; Lee, Seung Eun ; Kim, Jin Won ;
Journal of Korean Society of Steel Construction, volume 27, issue 4, 2015, Pages 377~386
DOI : 10.7781/kjoss.2015.27.4.377
In this study, inelastic buckling strength of HSA800 steel columns were tested to investigate the applicability of current column curve (KBC2009, 2010 AISC-LRFD) to HSA800 steel. Key test variables included width-thickness ratio, plate-edge restraints, and column slenderness ratio. Specimens made of ordinary steel (SM490) were also tested for comparison purposes. All the concentrically loaded HSA800 specimens exhibited sufficient buckling strength compared to the current column curve, but some of SM490 specimens showed understrength. This difference can be explained by the lower residual stress present in HSA800 specimens.
Calculation of Limit Temperature on H-Beam Flexural Member Through the Thermal Stress Analysis under the Lateral Load
Yoon, Sung Kee ; Lee, Chy Hyoung ; Koo, Bon Hoon ;
Journal of Korean Society of Steel Construction, volume 27, issue 4, 2015, Pages 387~397
DOI : 10.7781/kjoss.2015.27.4.387
The domestic fire resistance performance test is conducted as a prescriptive design method such as quality test. In quality test there are 2 methods, unloaded fire resistance test and fire resistance test under load. In realistic, these tests, however, have problems with expense, time and diversity of structure. This study reviewed fire resistance performance of H-beam flexural member by thermal stress analysis using finite element ABAQUS program. This research is for the performance-based design reviewing applicability of domestic standard. As a result of this study, limit temperatures per each load ratio provied for proper performance of fire resistancy.
Investigation of Shear Design Expressions of Large-Diameter Concrete-Filled Steel Tubes(CFT)
Jung, Eun Bi ; Yeom, Hee Jin ; Yoo, Jung Han ;
Journal of Korean Society of Steel Construction, volume 27, issue 4, 2015, Pages 399~410
DOI : 10.7781/kjoss.2015.27.4.399
Concrete filled steel tube(CFT) has outstanding deformation capacity and strength in comparison with reinforced concrete or steel tube. CFT drilled shaft, which is developed large shear force due to seismic load and soil liquefaction, is designed as large diameter. However, shear design equations of the current standards do not consider bond stress of CFT and it results in extremely conservative design. Currently, previous studies for improving shear equations scarcely exist and are impossible applied to large CFT drilled shafts since these studies focus on only small scale experimental research. In this study, eventually to propose improving shear equation of large diameter CFT, it is preliminary research to compare and investigate the previous studies and current standards.
Design and Buckling Analysis of Earth Retaining Struts Supported by High Strength Steel Pipe and PHC Pile
Lim, Seung Hyun ; Kim, In Gyu ; Kim, Sung Bo ;
Journal of Korean Society of Steel Construction, volume 27, issue 4, 2015, Pages 411~422
DOI : 10.7781/kjoss.2015.27.4.411
The design and buckling behavior of earth retaining system supported by high strength steel pipe and PHC pile under compression is presented in this study. Buckling analysis of various strut system was investigated according to the strut total length(30m, 60m, 90m), three types of built-up columns and connection condition. Buckling loads calculated by F.E analysis was compared with the theoretical solution corresponding to diagonal buckling mode, local and global buckling mode of main strut. The design of the built-up column struts are performed based on design guide for high strength steel pipes and P-M diagram for built-up column with two PHC pile section.