Seismic Response of Structures with Uncertain Parameters

2009 ◽  
Author(s):  
P. Štemberk ◽  
J. Kruis
Keyword(s):  
Seismic Response ◽  
Uncertain Parameters

Identification of the significant uncertain parameters in the seismic response of irregular bridges

2017 ◽  
Vol 141 ◽  
pp. 356-372 ◽  
Author(s):  
Farahnaz Soleimani ◽  
Brani Vidakovic ◽  
Reginald DesRoches ◽  
Jamie Padgett
Keyword(s):  
Seismic Response ◽  
Uncertain Parameters ◽  
Irregular Bridges

The Stochastic Seismic Response Analysis on Nonlinear Pile-Soil-Structure Interaction System with Uncertain Parameters

2011 ◽  
Vol 243-249 ◽  
pp. 3940-3944
Author(s):  
Ai Hong Zhou ◽  
Ying Yuan ◽  
Ji Hua Chen
Keyword(s):  
Seismic Response ◽  
Vibration Analysis ◽  
Soil Structure ◽  
Soil Structure Interaction ◽  
Equivalent Linearization ◽  
Uncertain Parameters ◽  
Structure Interaction ◽  
Material Parameters ◽  
Interaction System ◽  
Stochastic Seismic Response

In order to solve the problem of the analysis of seismic response for nonlinear pile-soil-structure interaction system with uncertain parameters subjected to stochastic external excitation, a simple and practical method was proposed in this paper, and the corresponding plug-in program was developed on the platform of universal software ANSYS. Firstly, the stochastic vibration analysis was converted into the definite harmonic vibration analysis accurately by means of the pseudo-excitation method. Secondly, perturbation theory of small parameter was introduced to consider the uncertain material parameters and direct interpolation equivalent linearization model was used to simulate the nonlinearity of material. Finally, the effects of the variability of shear modulus, damping ratio, density and Poisson’s ratio on the stochastic seismic response of the pile-soil-structure interaction system are studied. The results show that the variability coefficients of the response have the same magnitude as the input material parameters and the influence of the variability of material parameters on the response magnitude can’t be ignored.

Influence of the distribution of the shear walls on the seismic response of the buildings

2020 ◽  
Vol 15 (1) ◽  
pp. 37-44
Author(s):  
El Mehdi Echebba ◽  
Hasnae Boubel ◽  
Oumnia Elmrabet ◽  
Mohamed Rougui
Keyword(s):  
Structural Analysis ◽  
Seismic Response ◽  
Natural Frequency ◽  
Structural Design ◽  
Structural Response ◽  
Shear Walls ◽  
Structural Elements ◽  
Analysis Software ◽  
Ansys Apdl ◽  
The Impact

Abstract In this paper, an evaluation was tried for the impact of structural design on structural response. Several situations are foreseen as the possibilities of changing the distribution of the structural elements (sails, columns, etc.), the width of the structure and the number of floors indicates the adapted type of bracing for a given structure by referring only to its Geometric dimensions. This was done by studying the effect of the technical design of the building on the natural frequency of the structure with the study of the influence of the distribution of the structural elements on the seismic response of the building, taking into account of the requirements of the Moroccan earthquake regulations 2000/2011 and using the ANSYS APDL and Robot Structural Analysis software.

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