| Title |
An Expermental Study on the Behavior of H-Beam to SHS Column Connections Stiffened by Endplates |
| Abstract |
Square Hollow Sections(SHS) have been increasingly used as the column of multistory buildings in Japan and European countries owing to geometrical symmetry of the section and flexibility of space utilization. However, complexity of the connection between SHS column and H-section beam has been a main obstacle to use of SHS as column member. Apart from Japan, where three types of diaphragms are used to resist local failure at the flange of SHS columns and to fully ascertain rigidity, in non-seismic regions, the H-section beam can be directly welded to the SHS column with or without endplates, if semi-rigid connections are used for the design purpose.In this study, the connections between SHS column and H-section beam are studied for application to multistory buildings. Three connection types - directly welded (DW), welded with an endplate(EP), and welded with an endplate with additional plug welding(HP) - are tested. The test results are compared with numerical simulation results predicted by advanced analysis (plastic nonlinear analysis) using ABAQUS. For the problem of contact in endplate-type connections, a simple and efficient method is introduced. |