NEHRP Clearinghouse
- Title
- Analytical Method for Determining Seismic Response of Cooling Towers on Footing Foundations.
- File
- PB301308.pdf
- Author(s)
- El-Shafee, O.; Gould, P. L.
- Source
- National Science Foundation, Washington, DC. Engineering and Applied Science., September 1979, 228 p.
- Identifying Number(s)
- RR-55
- Abstract
- A finite element model was developed to analyze shells of revolution under dynamic loading with soil-structure interaction effects. The model consists of high-precision rotational shell finite elements, representing the axisymmetric shell, supported on an equivalent boundary system, representing the soil medium. The substructure method is used to model the shell and soil components. In addition to the seismic analysis capability of the proposed model, it is also applicable to other dynamic loads such as wind. The dynamic behavior of a hyperboloidal cooling tower is studied using the proposed model. Dynamic properties are studied and stress analysis is carried out for a variety of soil conditions. The appendices include high precision rotational shell elements, details of stiffness matrix for an isoparametric solid element, a listing of the SUBASE Program, and modifications and additions for the User's Manual of the SHORE-III Program.
- Keywords
- SUBASE computer program; Dynamic loads; Cooling towers; Computer programs; Mathematical models; Cylindrical shells; Dynamic response; Finite element analysis; Earthquake engineering; Stress analysis; Soil structure interactions