Effect of Soil–Structure Interaction on Free Vibration Characteristics of Antenna Structure

2019 ◽  
pp. 135-144
Author(s):  
Venkata Lakshmi Gullapalli ◽  
Neelima Satyam ◽  
G. R. Reddy
Keyword(s):  
Free Vibration ◽  
Soil Structure ◽  
Vibration Characteristics ◽  
Soil Structure Interaction ◽  
Antenna Structure ◽  
Structure Interaction

Free Vibration Characteristics of Structures With Nonlinear Underlying Soil

1991 ◽  
Vol 113 (1) ◽  
pp. 95-99
Author(s):  
Kamal A. F. Moustafa ◽  
M. El-Gebeily
Keyword(s):  
Perturbation Theory ◽  
Shear Modulus ◽  
Free Vibration ◽  
Nonlinear Model ◽  
Soil Structure ◽  
Natural Frequencies ◽  
Nonlinear Behavior ◽  
Soil Structure Interaction ◽  
Structure Interaction ◽  
Underlying Soil

Free vibration of structures is investigated by using a multidegree of freedom nonlinear model that allows for nonlinear behavior of the soil underlying the structure. The considered nonlinearity is due to the dependence of the soil shear modulus on vibration levels. The soil-structure interaction is modelled as nonlinear complex stiffness. The analysis is carried out by using mathematical perturbation theory. Modifications in the natural frequencies and existence of harmonics are demonstrated. The results are applied to an application example of massive deep water gravity structure.

Impact of Different Style of Tower-Beam-Connection on Cable-Stayed Bridge's Earthquake Response

2014 ◽  
Vol 539 ◽  
pp. 726-730
Author(s):  
Yu Chen
Keyword(s):  
Free Vibration ◽  
Seismic Response ◽  
Soil Structure ◽  
Response Spectrum ◽  
Soil Structure Interaction ◽  
Earthquake Response ◽  
Structural Systems ◽  
Bridge Construction ◽  
Structure Interaction ◽  
Internal Forces

In this thesis, Three structural systems of main towerbeam-consolidation, two tower-beam-consolidation and none-tower-consolidation with the pile-soil-structure interaction are established ,free vibration characteristics and seismic response of three structural systems are investigated, and seismic response of Response spectrum and Earthquake schedule are analyzed respectively and compared. Studies have shown that in the process of the bridge construction, because of the small span, internal forces were the control action and the displacement is the second.

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