A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Reliability-based load factors for airblast and structural reliability of reinforced concrete columns for protective structures
Reliability-based design allows the decision-maker to select the level of reliability for a specific explosive blast loading scenario. Important to this is an understanding of airblast and resistance uncertainty. Reliability-based load factors are calculated and are dependent on the variability of model error, explosive mass and range. Reliability-based design load factors (RBDFs) are estimated for explosive ordnance, terrorism, weaponeering and other scenarios. The effect of RBDFs on structural reliabilities for reinforced concrete (RC) columns is then calculated where resistance and loading are random variables, and compared to target values. It was found, for realistic combinations of range and explosive mass variabilities, that RC columns designed to existing standards have a significant margin of safety with a probability of failure of 1 × 10−3 to 1 × 10−5. However, if there is large airblast variability, then the application of RBDFs is necessary to ensure that safety levels are acceptable according to international standards.
Reliability-based load factors for airblast and structural reliability of reinforced concrete columns for protective structures
Reliability-based design allows the decision-maker to select the level of reliability for a specific explosive blast loading scenario. Important to this is an understanding of airblast and resistance uncertainty. Reliability-based load factors are calculated and are dependent on the variability of model error, explosive mass and range. Reliability-based design load factors (RBDFs) are estimated for explosive ordnance, terrorism, weaponeering and other scenarios. The effect of RBDFs on structural reliabilities for reinforced concrete (RC) columns is then calculated where resistance and loading are random variables, and compared to target values. It was found, for realistic combinations of range and explosive mass variabilities, that RC columns designed to existing standards have a significant margin of safety with a probability of failure of 1 × 10−3 to 1 × 10−5. However, if there is large airblast variability, then the application of RBDFs is necessary to ensure that safety levels are acceptable according to international standards.
Reliability-based load factors for airblast and structural reliability of reinforced concrete columns for protective structures
Stewart, Mark G. (author)
Structure and Infrastructure Engineering ; 15 ; 634-646
2019-05-04
13 pages
Article (Journal)
Electronic Resource
English
Reliability-based design of reinforced concrete columns
| British Library Online Contents | 1996
Reliability-based design of reinforced concrete columns
| Online Contents | 1996
Reliability analysis of reinforced concrete columns
| British Library Conference Proceedings | 1993
Dynamic response of structures to airblast load with surrounding protective walls
| British Library Conference Proceedings | 2005
Partial safety factors for homogeneous reliability of nonlinear reinforced concrete columns
| Online Contents | 2001