Development of a numerical evaluation tool for performance-based design

Title: Development of a numerical evaluation tool for performance-based design
Author(s): T. Ishida, K. Maekawa, M. Soltani
Paper category : conference
Book title: International RILEM Symposium on Self-Compacting Concrete
Editor(s): O. Wallevik and I. Nielsson
Print-ISBN: 2-912143-42-X
e-ISBN: 2912143713
Publisher: RILEM Publications SARL
Publication year: 2003
Pages: 826 - 836
Total Pages: 11
Nb references: 7
Language: English

Abstract: In order to ensure the durability of concrete structure, it is necessary to predict material and structural behaviours at design stage before construction. Self-compacting concrete eliminates the uncertainties in compaction and construction quality, thereby making it possible to apply simulated results for practice without higher safety margin. Thus, material physics based prediction on durability performance is quite meaningful for Self-compacting concrete. Based on this background, a thermo-hygro numerical simulation has been developed at the University of Tokyo. This simulational system consists of the material modelling on hydration, microstructure formation, moisture/ion/gas transport & equilibriums, and steel corrosion. The full integration of components allows us to evaluate both concrete hardening and long-term deterioration only by giving initial and ambient conditions as input. For engineers' practical use, the simulation system has been customized so that they can easily perform the durability assessment based on a computational approach. Most of the durability problem, such as chloride attack, carbonation, corrosion etc., can be traced by one-dimensional simulations. In this paper, several analytical samples are presented by using the application that has pre- and post-processor with graphical user interfaces, focusing on energy/mass transport problem in one-dimension.

Online publication: 2003-08-21
Publication type : abstract_only
Public price (Euros): 0.00