Dear Bridge engs,
I have come across different techniques to mimic the damage condition in bridge structures. I list down what I do often and others can keep the list continuing!
For bridge condition assessment, either a hair-size crack or major spalling, I'd following:
[ul]
[li]reduction in cross section depending on severity of damage scenario[/li]
[li]reduction in stiffness (E); it could also be simultaneous reduction in (EI) based on severity of damage[/li]
[li]entirely removing a particular section for onerous damage[/li]
[/ul]
I need to highlight having proper meshing size and quality is of high importance for all of the aforementioned cases; needless to say proper boundary condition, connectivity of elements and etc which are assumed known by user!
I have come across different techniques to mimic the damage condition in bridge structures. I list down what I do often and others can keep the list continuing!
For bridge condition assessment, either a hair-size crack or major spalling, I'd following:
[ul]
[li]reduction in cross section depending on severity of damage scenario[/li]
[li]reduction in stiffness (E); it could also be simultaneous reduction in (EI) based on severity of damage[/li]
[li]entirely removing a particular section for onerous damage[/li]
[/ul]
I need to highlight having proper meshing size and quality is of high importance for all of the aforementioned cases; needless to say proper boundary condition, connectivity of elements and etc which are assumed known by user!