Reliability Study of SINGER. Volume I. Validation of Model.
Abstract
The first volume of the report is connected with the refinement and the demonstration of the current capability of the computer code SINGER. The function of SINGER is to predict the complete response (including element failures and structural collapse) of skeletal reinforced concrete structures to static and dynamic loads. The refinement of SINGER comprises the following principal tasks: The validation of the finite element, the selection of an appropriate quadrature method, and the formulation of error controls, in energy evaluations. In the validation effort, the performance of the finite element (and assemblages of the element) is tested over the entire range of response, from the elastic geometrically linear range to the inelastic geometrically nonlinear range. The validation is based on two continuum models of elastic and inelastic beam-columns, which admit closed-form solutions. A literature survey indicated that the Gaussian quadrature is the most appropriate quadrature errors. The selection is based on convergence characteristics and error estimates. Energy computations involve discretization and quadrature errors. Accordingly, error measures are proposed to control the accuracy of the response predictions. A variety of problems is solved and compared to independent numerical ad experimental solutions to illustrate the current capability of SINGER. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1977
- Accession Number
- ADA037819
Entities
People
- A. E. Somers
- Joel C. Bradshaw Iii
- S. M. Holzer
Organizations
- Virginia Tech