| Vol. - No. | Vol.1 - No.4 |
|---|---|
| Date | Dec., 2012 |
| Title |
Simplified Algorithm of the Novel Steel-concrete Mixed Structure under Lateral Load |
| Author | Liang Li1, Guo-qiang Li2+, and Yu-shu Liu3 |
| Institutions |
1College of Civil Engineering, Chang'an University, Xi'an 710061, China 2State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China 3College of Civil Engineering, Tongji University, Shanghai 200092, China |
| Abstract | In order to improve the seismic behaviors of traditional steel-concrete mixed structure, a novel steel concrete mixed structure consisting of steel frames braced with buckling restrained braces (BRBs) and a concrete tube is proposed. Based on several assumptions, the simplified mechanical model of the novel mixed structure is established, and the shear and bending stiffness formulas of the steel frames, BRBs and concrete tube are respectively introduced. The equilibrium differential equation of the novel mixed structure under horizontal load is developed based on the structural elastic theory. The simplified algorithms to determine the lateral displacement and internal forces of the novel mixed structure under the inverted-triangle distributed load, uniformly load and top-concentrated load are then obtained considering several boundary conditions and compatible deformation conditions. The effectiveness of the simplified algorithms is verified by FEM comparison. |
| Keyword | Steel-concrete mixed structure, Buckling restrained braces, Hinged frame with BRB, Equilibrium differential equations, Elastic theory, Simplified algorithm |
| PP. | PP.247~254 |
| Paper File |
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