Assessment of the Time-dependent Behaviour of a Reinforced Concrete Water Tank by using the Finite Elements Method

[摘要] Determinants factors (design and execution errors, site location, environmental & exploitation conditions) could generate the over-time degradation of the buildings. In order to assure the safety during the service period (imposed by the norms) the time-dependent monitoring of the structure's behaviour is required. As a case study a reinforced concrete water tank was analysed. The structural analysis in two different stages was considered: initial stage (as in design project) and current stage (after approximately 35 years of exploitation). A parametric study based on a computational model (by using Finite Element Method - FEM) was carried out using SCIA Engineer software program. The computational model was designed (for both stages) by using mechanical characteristics of the material (collected from initial project) and data resulted from destructive and non-destructive tests in current stage. The objective was to estimate the level of degradations which could occur in structural elements during the exploitation period by comparing the evolution of stress distribution in the two stages. The durability factors were analysed in order to the studied structure's life-cycle assessment.

[发布机构] Doctoral School, Faculty of Civil Engineering, Building Services, Gheorghe Asachi Technical University of Iai, 700050, Romania^1;Department of Civil and Industrial Engineering, Faculty of Civil Engineering and Building Services, Gheorghe Asachi Technical University of Iai, 700050, Romania^2

[学科分类] 土木及结构工程学

[关键词] Computational model;Durability factor;Life Cycle Assessment (LCA);Mechanical characteristics;Non-destructive test;Structural behaviour;Structural elements;Time-dependent behaviour