Static analysis of tall buildings based on Timoshenko beam theory

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Abstract

In this paper, the continuum model, which is known as Kwan model, has been presented for the analysis of tall buildings that have been as an appropriate approximation of the overall behavior of the structure. Tall building was modeled as a cantilever beam and analyzed with the assumption of flexural behavior based on Euler–Bernoulli Beam Theory, then the displacement of floors was calculated. o consider the shear lag effects in the overall displacement of the structure, Timoshenko’s beam model has been considered and related relations were extracted. The lateral displacement formulas obtained and calculated for the framed tube system modeled by Kwan’s method. To verify the results, numerical models were created in software (ETABS) and statically were analyzed for lateral loading. Finally the results were compared with those obtained by computer analysis and the corresponding diagrams were presented. At the end, the shape factor formula has been developed to improve the results of the Timoshenko’s theory.

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Davari, S. M., Malekinejad, M., & Rahgozar, R. (2019). Static analysis of tall buildings based on Timoshenko beam theory. International Journal of Advanced Structural Engineering, 11(4), 455–461. https://doi.org/10.1007/s40091-019-00245-7

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