Categorization of Bridges by Failure Consequences

Milan Holicky; Jiří Kolisko

doi:10.4028/www.scientific.net/AST.108.53

Paper Titles

The Development of Photoactive Admixtures for Concrete and Cement-Based Plaster Finishes, to Create Self-Cleaning Surfaces
p.1

Operating Costs of Communication with Cement Concrete Cower from the Perspective of Construction 4.0
p.11

Construction of a Geophysical Observatory in Fürstenfeldbruck in Germany
p.17

Modular Construction in Response to Pandemic Situations
p.23

Study of the Underground Placement of a Reinforced Concrete Containment Building
p.35

Simplified Analytical Determination of Bending Moments in a Two-Way Slab Using a Web-Based Application
p.45

Categorization of Bridges by Failure Consequences
p.53

HomeAdvances in Science and TechnologyAdvances in Science and Technology Vol. 108Categorization of Bridges by Failure Consequences

Categorization of Bridges by Failure Consequences

Abstract:

Categorization of bridge constructions by the failure consequences due to loss of ultimate capacity or serviceability is a difficult task that can be resolved using two different approaches: elementary method using currently valid standards advanced method based on risk assessment. The elementary method is grounded on subjective assessment of bridge malfunctioning or collapse. The bridge is classified into an appropriate category (consequence class) in accordance with the most severe consequence. It is a simple procedure that may be applied without the need of demanding mathematical procedures. However, the resulting categorization may be affected by uncertainties in the assessment of consequences. The advanced method is based on a comprehensive analysis of bridge malfunctioning using a procedure of risk assessment. This method takes account of the occurrence probability of unfavourable events and the significance of individual consequences. Classification of a bridge construction into an appropriate category depends on the resulting risk of the bridge failure. This more laborious approach provides credible results without excessive uncertainties. The most adverse difficulty of the method is a combination of some consequences like the loss of life and economic costs. Both the above-mentioned approaches to the categorization of bridges by failure consequences can be effectively used depending on the type of bridge, on the intensity of exploitation, on expected consequences, and on social impacts of bridge malfunctioning.