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- W3176346197 abstract "Moment-resistant steel frames are one of the most common solutions in Japanese building industry aimed to resist even the earthquakes of significant scale. Variety of the solutions are being used, including systems with fixed frame base, exposed frame base, and structures with a pin introduced in the mid-point of the first-storey. Commonalities between those solution are the requirements, as well as the boundary conditions for the beams of the superstructure.In the situation of the significant earthquake the columns are forced to lean due to the horizontal loading – lateral forces generated by the accelerating masses of the floors. Beams, being stiffly connected to the columns have to bear the load distribution co-responding to the model of cantilever loaded with concentrated force at its end. The energy of the earthquake has to be dissipated and the plastic hinges cannot develop within the columns to prevent the soft-storey mechanism of the first floor. Therefore, the plastic hinges must be developed within beams. However, for the beam sections experiencing stresses exceeding the yielding stress and developing hight cumulative plastic ductility the probability of the local stability loss of even a bulky I-beam Is high and has to be scrutinised.The research develops the simplified method to calculate the I-beam cantilever capacity with respect to the local buckling capacity of the cross-section. The method is based on the formulas derived using the fundamentals of the theory of elastic stability of thin plates and the strain energy to external work equilibrium equations. Parts of the member’s crossed section are checked against the possible stresses and boundary conditions and the final equation for the whole beam is proposed. The outcome is confirmed against the parametric study of the variety of the beams’ sections using finite element analyses. The results are discussed and the simplified procedure for the capacity estimation is proposed." @default.
- W3176346197 created "2021-07-05" @default.
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- W3176346197 date "2021-06-14" @default.
- W3176346197 modified "2023-09-23" @default.
- W3176346197 title "The Capacity of the I-Beam Cantilevers Subjected to the Bending Moment and Shear Force with Respect to Local Buckling" @default.
- W3176346197 hasPublicationYear "2021" @default.
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