| Title |
An Experimental study of Buckling Behavior in Built-up Compression Member with Unsymmetric Connectors I - Effect of Distance of Connecting Members - |
| Authors |
강상훈(Kang, Sanghoon) ; 한만엽(Han, Manyop) ; 조병두(Cho, Byeongdu) |
| DOI |
https://doi.org/10.12652/Ksce.2012.32.4A.207 |
| Keywords |
조립식 압축부재;연결재 간격;좌굴 하중;좌굴 거동;실험 연구 built-up compression member;distance of connection members;buckling load;buckling behavior;experimental study |
| Abstract |
Structural behavior of built-up compression members with unsymmetric connectors under buckling status has been studied through these experiments. When the distance between adjacent H-300 beams of built-up compression member is 2 m in length, and the H-300 beams are lengthened up to 30 m in length with three-10 m-H-beams by bolts and double arrayed, three specimen having each connector interval 4 m, 5 m, 6 m are experimented for evaluating buckling loads. The buckling loads from the experiments are compared with buckling loads of structural analysis using FEM and buckling loads of Timoshenko Eq. loads in order to figure out how the connectors' interval affects on longitudinal and lateral displacements, also strain of the built-up compression members as well. The result shows that the buckling loads tend to sharply decrease non-linearly according to connectors' interval increases. As well as that, the differences between experimental buckling loads and theoretical buckling loads and between experimental buckling loads and structural analyses buckling loads also have a tendency to be increased as the connector interval increases. |