2257 Overturning Moment of Tall Buildings : No. 3(Structures)
نویسندگان
چکیده
منابع مشابه
Mechanism of Collapse of Tall Steel Moment Frame Buildings Under Earthquake Excitation
We expound on the nature of collapse of one class of tall buildings (steel moment frame buildings) under earthquake excitation. Using a parametric analysis of a couple of index buildings subjected to idealized ground motion histories, we establish the ground motion features that cause collapse in these structures. Systematically mapping damage localization patterns, we track the evolution of th...
متن کاملSensitivity of the Earthquake Response of Tall Steel Moment Frame Buildings to Ground Motion Features
The seismic response of two tall steel moment frame buildings and their variants is explored through parametric nonlinear analysis using idealized sawtooth-like ground velocity waveforms, with a characteristic period (T ), amplitude (peak ground velocity, PGV ), and duration (number of cycles, N ). Collapse-level response is induced only by long-period, moderate to large PGV ground excitation. ...
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...
متن کاملDesign of Tall Buildings – Preliminary Design
The design of tall buildings essentially involves a conceptual design, approximate analysis, preliminary design and optimization, to safely carry gravity and lateral loads. The design criteria are, strength, serviceability, stability and human comfort. The strength is satisfied by limit stresses, while serviceability is satisfied by drift limits in the range of H/500 to H/1000. Stability is sat...
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ژورنال
عنوان ژورنال: Transactions of the Architectural Institute of Japan Summaries of Technical Papers
سال: 1967
ISSN: 2433-0035
DOI: 10.3130/aijsaxxe.42.0_401