An experimental study was conducted to examine for the structural behavior of coupled steel plate shear wall (Coupled SPSW) system what is formed by connection the two steel plate shear walls (SPSW) with a coupling beam. The variable of this study was the length of coupling beam. The testing results were showed that the strength and stiffness of specimen with shorter coupling beam were improved than those of other specimen. However there is no difference of the yielding mechanism.

This paper was conducted to evaluate structural performance of modular system connection with bracket. It was evaluated to two external connection specimens and two internal connection specimens. As a result of experiment, excessive shear deformation of the bracket was observed in all of the specimens. However, all of the specimens satisfied the requirement for intermediate moment frames (IMF) targeted in the experiment.

In this paper, structural behavior of internal and external connection of modular system was evaluated by finite element analysis(FEA). As a result of FEA, results of experiment and analysis were nearly similar to validate analysis model. Parametric analysis will be necessary using this valid analysis model

The purpose of this study was to experimentally evaluate seismic performance of connection of modular system. As a result of experiment study, two specimens did not show the strength reduction and brittle fracture at connection until 2% story drift. Thus, requirements for intermediate moment frame(IMF) was satisfied in two specimens.

The purpose of this study was to improve the buckling strength of steel plate shear wall system. The variable of this study was arrangement and aspect ratio of steel plate. The arrangement of continuity and both sides were compared. And the aspect ratio 1.3 and 0.8 were compared. As a result, there was no significant difference between the arrangement of continuity and both sides, and it was observed that there was no significant difference of behavior when the aspect ratio was decreased.

In this study, experiment and analysis of high-strength bolt connection under shear fatigue loading was conducted to evaluate reduction of axial force of bolt. Three type of bolt size and initial axial force were applied to specimens. As a results, it was observed that the reduction ratio of axial force, and that would be used to additional parametric study.

In this study, experiment and analysis of high-strength bolt connection under shear fatigue loading was conducted to evaluate reduction of axial force of bolt. Three type of bolt size and initial axial force were applied to specimens. As a results, it was observed that the reduction ratio of axial force, and that would be used to additional parametric study.