Cyclic Performance of Wide Flange Beam to Concrete-Filled Rectangular Tube Column Joints with Stiffening Plates around the Column

概要

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The strength and rigidity of wide flange beam to rectangular tube column joints are reduced significantly if the connections are not reinforced. However, the reinforcement for the connections can be complex and increase the fabrication costs significantly because the tube columns are closed sections. This paper describes the force transfer mechanism and the cyclic performance of wide flange beam to concrete-filled rectangular tube column joints reinforced with stiffening plates. The first phase of this research program was to assess the force transfer mechanism at the joint using an analytical yield line method. An experimental program was conducted to verify the proposed model. The test results showed that the derived nominal strength equation provided a reasonable prediction. The second phase of the research program was to assess the cyclic performance of the joints by full-scale joint subassemblage tests. A total of five specimens were tested under cyclic loading. Test results showed that plastic rotation of 0.02 radian which is required for Intermediate Moment Resisting Frames could be obtained.
社団法人日本建築学会の論文
2002-03-20