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곽의신(Kwak, Eui-Shin),기창군(Ki, Chang-Gun),이상호(Lee, Snag-Ho),손수덕(Shon, Su-Deok),이승재(Lee, Seung-Jae) 대한건축학회 2016 대한건축학회 학술발표대회 논문집 Vol.36 No.2
Occurrence and effect of horizontal load, such as the recent frequent earthquakes and seismic load and wind load due to the increase of demand for high-rise buildings are no longer able to not consider the possibility of damage and secondary damage of the exterior panel. Therefore, in this study, by the exterior panels that using moving clips to follow the displacement that occurs in the structure of the building, there is the object of the present invention is to prevent damage and falling off of the exterior panels. Perform the finite element analysis and the actual large shaking table test of the exterior panels, to verify the structural performance, satisfies the non-structural elements seismic design for Korean building code.
천장 브래킷형 모듈러 시스템의 브래킷 길이와 볼트에 따른 내진성능평가
곽의신(Kwak, Eui-Shin),강창훈(Kang, Chang-Hoon),손수덕(Shon, Su-Deok),이승재(Lee, Seung-Jae) 대한건축학회 2018 大韓建築學會論文集 : 構造系 Vol.34 No.4
In regard to modular systems, new methods, as well as middle and high-story unit design ideas, are currently being studied. These studies need to focus on the enhanced stiffness and seismic performance of these connections, and see that the development of fully restrained moment connections can improve the seismic performance. For this reason, this study evaluates the performance of the connections of the ceiling bracket-typed modular system through repeated loading tests and analyses. In order to compare them with these modular units, new unit specimens with the bracket connection being different from that of the traditional modular unit specimens were designed, and the results of repeated loading tests were analyzed. In the traditional units, the structural performances of both welding connection and bolt connection were evaluated. In regard to the testing results, the initial stiffness of the hysteresis curve was compared with the theoretical initial stiffness, and the features of all specimens were also analyzed with regard to the maximum moment. In addition, the test results were examined with regard to the connection flexural strength of the steel special moment frame specified under the construction criteria KBC2016. The connections, which were proposed in the test results, were found to be fully restrained moment connections for designing strong column-weak beams and meeting the requirements of seismic performance of special moment frames.
이동 클립을 이용한 건축물 외장재의 구조적 성능에 관한 연구
곽의신(Kwak, Eui-Shin),기창군(Ki, Chang-Gun),이상호(Lee, Sang-Ho),손수덕(Shon, Su-Deok),이승재(Lee, Seung-Jae) 대한건축학회 2017 大韓建築學會論文集 : 構造系 Vol.33 No.12
A recent global trend in the increase of earthquake-related disasters has become so frequent as to cause various damages to a wide range of mid- to high-rise buildings. Particularly, more attention is being paid to the effect of horizontal load in high-rise buildings not only on the key structural elements of the structures, but also on the possibility of the secondary damages to them due to the failure of exterior panels, which are non-structural elements, but such damages are difficult to cope with as they may be caused by unexpected changes. The present study examined exterior panels using moving clips to prevent such secondary damages on the non-structural elements and analyzed the structural performance of these exterior panels through the finite element analysis and the shaking table test. The analysis results showed that the exterior panels using moving clips satisfied the structural performance against the allowable story drift of KBC2009 and the safety of the exterior panels was verified by the shake table test.
용접형과 무용접형 하지철물의 수평변위 추종능력에 관한 연구
이돈우,곽의신,손수덕,이승재,Lee, Don-Woo,Kwak, Eui-Shin,Shon, Su-Deok,Lee, Seung-Jae 한국공간구조학회 2016 한국공간구조학회지 Vol.16 No.4
Building hardware joints are welded in most cases, which have risks of fire and explosion. Besides, the secondary damage of the destruction of the welded parts can be caused by the horizontal displacement of the structure due to earthquake or wind load. This paper compared the horizontal displacement following abilities of welded building hardware and non-welded building hardware. To do this, We conducted actual formation shake table test, and checked on the horizontal displacement following ability of structure by comparing their responses to earthquake load. We made the 2m-high framework to examine the responses of the actually constructed building hardwares, and analyzed the displacement responses of the welded-typed, non-welded-typed, and cruciform bracket building hardwares. We conducted the test by increasing acceleration rate until displacement reached 40mm corresponding to allowable relative story displacement II. The result of the test showed that the building hardware using welding work made cracking and breakage on welded connections of welded building hardware, but non-welded building hardware with no use of welding work and cruciform bracket building hardware make no problem, and that non-welded building hardware is superior to that of the welded building hardware in the horizontal displacement following ability due to earthquake or wind load.