Applying Reliability Theory to Assess the Danger Level of Existing Reinforced Concrete Buildings According to Vietnamese Standards

In order to meet the need to reuse existing reinforced concrete buildings and to have a design and renovation plan, these works must be evaluated and classified for quality. However, when applying the guideline based on Vietnamese standards to evaluate such existing works, there are still some limitations, such as using coefficients for the importance of the elements and the ratio between the prominent bearing elements and the extra. This article applies reliability theory, considering several factors as random quantities to assess the danger level of existing reinforced concrete building structures. Examples applied to evaluation results are substantial. Some comments and discussions on the study’s methodology and results are also provided.