隧道-海洋平台
Present advances in computational mechanics make possible the application of nonlinear finite element analysis in practical design. In this way an inconsistency, which exists in the currently used design procedures between the internal force distribution determined from the linear elastic analysis and the section proportioning based on the nonlinear material behavior can be reduced. Realistic constitutive model of concrete behavior enables a simulation of the real structural behavior in service as well as ultimate loading conditions. An application of such approach is demonstrated in this article using the computer code SBETA (ATENA) developed by the authors. Extensive experience with the use of this software in research and design shows that it can significantly improve the quality of structural analysis and serve as an efficient design tool.
