scholarly journals PREDICTION OF LARGEST PEAK SESIMC RESPONSE AT FLEXIBLE-SIDE FRAME OF ASYMMETRIC BUILDINGS UNDER HORIZONTAL GROUND MOTION ACT IN ARBITRARY DIRECTION

2010 ◽  
Vol 75 (653) ◽  
pp. 1247-1256 ◽  
Author(s):  
Kenji FUJII
Keyword(s):  
Ground Motion ◽  
Arbitrary Direction ◽  
Asymmetric Buildings ◽  
Horizontal Ground Motion

Dynamics of Rigid Block due to Horizontal Ground Motion

1998 ◽  
Vol 124 (7) ◽  
pp. 713-717 ◽  
Author(s):  
A. Pompei ◽  
A. Scalia ◽  
M. A. Sumbatyan
Keyword(s):  
Ground Motion ◽  
Rigid Block ◽  
Horizontal Ground Motion

Coupled torsional dynamic analysis of a multistory building

1973 ◽  
Vol 63 (3) ◽  
pp. 1025-1039
Author(s):  
Bruce M. Douglas ◽  
Thomas E. Trabert
Keyword(s):  
Ground Motion ◽  
Degrees Of Freedom ◽  
Seismic Waves ◽  
Structural Response ◽  
Tall Buildings ◽  
Strong Motion ◽  
Ambient Vibration ◽  
Simultaneous Application ◽  
Vibration Data ◽  
Horizontal Ground Motion

abstract The coupled bending and torsional vibrations of a relatively symmetric 22-story reinforced concrete building in Reno, Nevada are studied. Analytical results are compared with observations obtained during the nuclear explosion FAULTLESS and to ambient vibration data. The fundamental periods of vibration observed during FAULTLESS were (TNS = 1.42, TEW = 1.81, TTORSION = 1.12 sec), and the calculated periods were (TNS = 2.14, TEW = 2.07, TTORSION = 1.90 sec). It was estimated that between 25 and 45 per cent of the total available nonstructural stiffness was required to explain the differences in the observed and calculated fundamental periods. Each floor diaphragm in the system was allowed three degrees of freedom-two translations and a rotation. It was found that coupled torsional motions can influence the response of structural elements near the periphery of the structure. Strong-motion structural response calculations comparing the simultaneous use of both components of horizontal ground motion to a single component analysis showed that the simultaneous application of both components of ground motion can significantly alter the response of lateral load-carrying elements. Differences of the order of 45 per cent were observed in the frames near the ends of the structure. Also, it was shown that the overall response of tall buildings is sensitive not only to the choice of input ground motion but also to the orientation of the structure with respect to the seismic waves.

Response spectral matching of horizontal ground motion components to an orientation-independent spectrum (RotDnn)

2020 ◽  
pp. 875529302097098
Author(s):  
Luis A Montejo
Keyword(s):  
Ground Motion ◽  
Response Spectrum ◽  
Time History ◽  
Response Spectra ◽  
Major Axis ◽  
Component Level ◽  
Nonlinear Characteristics ◽  
Target Spectrum ◽  
Horizontal Ground Motion ◽  
Median Spectrum

This article presents a methodology to spectrally match two horizontal ground motion components to an orientation-independent target spectrum (RotDnn). The algorithm is based on the continuous wavelet transform decomposition and iterative manipulation of the two horizontal components of a seed record. The numerical examples presented follow current ASCE/SEI 7 specifications and therefore maximum-direction spectra (RotD100) are used as target for the match. However, the proposed methodology can be used to match other RotDnn spectra, like the median spectrum (RotD50). It is shown that with the proposed methodology the resulting RotDnn from the modified horizontal components closely match the smooth target RotDnn spectrum, while the response spectrum for each horizontal component continue to exhibit a realistic jagged behavior. The response spectra variability at the component level within suites of spectrally matched motions was found to be of the same order than the variability measured in suites composed of amplitude scaled records. Moreover, the spectrally matched records generated preserved most of the characteristics of the seed records, including the nonlinear characteristics of the time history traces and the period-dependent major axis orientations.

Dynamic analysis of flexible rectangular fluid containers subjected to horizontal ground motion

2013 ◽  
Vol 42 (11) ◽  
pp. 1637-1656 ◽  
Author(s):  
S. Hashemi ◽  
M. M. Saadatpour ◽  
M. R. Kianoush
Keyword(s):  
Dynamic Analysis ◽  
Ground Motion ◽  
Horizontal Ground Motion

Collapse behavior evaluation of asymmetric buildings subjected to bi-directional ground motion

2015 ◽  
Vol 24 (8) ◽  
pp. 607-628 ◽  
Author(s):  
Salar Manie ◽  
Abdoreza S. Moghadam ◽  
Mohsen Ghafory-Ashtiany
Keyword(s):  
Ground Motion ◽  
Asymmetric Buildings ◽  
Collapse Behavior
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