منابع مشابه
Estimation of Seismic Deformation Demands of Tall Buildings with Symmetric Setbacks
Abstract—This study estimates the seismic demands of tall buildings with central symmetric setbacks by using nonlinear time history analysis. Three setback structures, all 60-story high with setback in three levels, are used for evaluation. The effects of irregularities occurred by setback are evaluated by determination of global-drift, story-displacement and story drift. Story-displacement is ...
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In this paper, a computationally effective strategy to obtain multioverlapping controllers via the Inclusion Principle is applied to design discrete-time state-feedback multioverlapping LQR controllers for seismic protection of tall buildings. To compute the corresponding control actions, the proposed semidecentralized controllers only require state information from neighboring stories. This pa...
متن کاملSeismic Instrumentation of Buildings
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متن کاملAerodynamic Admittance Function of Tall Buildings
The aerodynamic admittance function (AAF) has been widely invoked to relate wind pressures on building surfaces to the oncoming wind velocity. In current practice, strip and quasi-steady theories are generally employed in formulating wind effects in the along-wind direction. These theories permit the representation of the wind pressures on building surfaces in terms of the oncoming wind velocit...
متن کاملEstimating Fundamental Frequencies of Tall Buildings
Empirical estimates of the fundamental frequency of tall buildings vary inversely with their height, a dependency not exhibited by the various familiar models of beam behavior. This paper examines and explains this apparent discrepancy by analyzing the consequences of using two models to estimate such natural frequencies: A two-beam model that couples the bending of a classical cantilever to th...
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ژورنال
عنوان ژورنال: International Journal of Engineering Science Technologies
سال: 2020
ISSN: 2456-8651
DOI: 10.29121/ijoest.v4.i5.2020.107