Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"P-Delta Effects"”.
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Development of a Comprehensive Linear Response History Analysis Procedure for Seismic Load Analysis
… orthogonal loading, solution techniques, P-Delta effects, modeling of the basement, and calculation of drifts are also studied in the context of linear response history analysis. The thesis concludes with suggested code language for linear response history analysis intended to be considered …
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Influence of intense ground motion on p-delta effect amplification
High intensity ground motion can cause significant deformations, which is the basis for additional second-order responses. This analysis uses two recorded ground motions for historical large earthquakes (Kocaeli and Tohoku), a sinusoidal curve, and a simulated ground motion based on the 1906 San …
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Parameters Influencing Seismic Structural Collapse with Emphasis on Vertical Accelerations and the Possible Related Risks for New and Existing Structures in the Central and Eastern United States
… the yield strength, and the stability ratio (P-Delta effects). Then, three parameters were associated with the ground motions — the records themselves, the lateral ground motion scales, and the vertical ground motion scales. From the parameter study, it was found that the post-yield stiffness …
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Sensitivity Study on Modification of Vertical Distribution of Strength and Stiffness in Wood Shear Wall Building Models
… in this study. The analytical models include P-Delta effects and utilize the 10-parameter hysteresis CASHEW model. It is observed that the Parabolic strength distribution allows for dissipation of energy over the height of the building, has less collapse risk than other strength distributions …
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STUDIES OF DYNAMIC RESPONSE OF OFFSHORE GUYED TOWERS
… and the modal method of analysis. The effects of numerous factors on the dynamic response of the structure are investigated. The factors considered include: (1) the relative contribution of the modes of vibration of the system to its response; (2) the effects of damping and …
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Nonlinear Analysis of Multistory Structures Using "NONLIN"
During the months I have been at Virginia Tech, I have experienced the most exciting time of my life. There are many persons who helped me to pursue my Master's degree. I would like to take this opportunity to express my appreciations to them. I would like to thank my advisor and committee …
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Development, Analysis and Testing of a Hybrid Passive Control Device for Seismic Protection of Framed Structures
… and aids in collapse prevention due to p-delta effects. The first phase of this work included characterization of high damping rubber compounds and analytical modeling of the HPCD concept. Experimental testing was completed to measure both the static and dynamic material properties of six …
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A Comparative Study on Seismic Analysis Methods and the Response of Systems with Classical and Nonclassical Damping
… of the systems were analyzed, including the effects of classical damping and nonclassical damping models. In addition to varying levels of Rayleigh damping, non-linear hysteric friction spring dampers (FSDs) were implemented into the systems. The design of the FSDs was based on target …
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Risposta sismica fuori piano di strutture murarie: gli effetti P-Delta in un approccio a macro-elementi
… effetti del secondo ordine (cosiddetti effetti P-Delta P-Δ) in grado di descriver la risposta di rocking di muri in muratura soggetti a carichi fuori dal proprio piano. In accordo con la strategia a macro-elementi discreti, il modello proposto descrive un muro di muratura attraverso una mesh di …