Documentation of Finite Element Analyses. Report I. Longview Outlet Works Conduit.
Abstract
The Longview Outlet Works Conduit is a reinforced concrete structure containing a flood control passageway located above two sewer passageways. A finite element analysis was made to determine stresses in the conduit. From these stresses, the moment, thrust, and shear forces were developed. The analysis was made using the GTICES STRUDL II Program available in the Boeing Computer System. A plane strain finite element analysis was performed. To become familiar with the finite element method and to confirm procedures used, example problems with known solutions were analyzed using the finite element method and the results were compared to the results from a conventional analysis. The examples problems were a simple beam and a circular conduit. Selected results from the example problems are included. These example problems provided guidance in selecting the element grid for the conduit analysis. Two finite element models were used in the conduit analysis: one model was of the structure only, and the other was for the structure and a portion of the foundation. The analysis evaluated the structure under the following three foundation conditions: rigid base, foundation modeled, and uniform base pressure. The results of this study indicated that the stresses were usually bracketed by the rigid base and the uniform base pressure foundation conditions. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1980
- Accession Number
- ADA096364
Entities
People
- Chris A. Merrill
- Richard Huff