AFTER-THE-IALCEE-PAPER

Codes for deriving scour fragility functions for masonry arch bridges.

ABSTRACT: Frequency and intensity of hydrological hazards have increased. Consequently, riverine bridges are suffering damage due to flooding. Fragility functions are used to estimate such damage conditioned on hazard intensity. However, flood fragility functions are limited for riverine bridges, and generally lack for masonry bridges. This paper presents a methodology to derive flood fragility functions for masonry arch bridges accounting for component failure modes. Demand and capacity of bridge components are derived from existing analytical expressions, and account for aleatory uncertainties via Monte Carlo simulations. The methodology is illustrated using a UK masonry bridge, which collapsed due to winter flood-induced scour. The investigated bridge is divided into its components (e.g., arches, pier) and a scour fragility function is derived for the arch, based on a lognormal cumulative distribution fitting to the derived failure probability data. Future research will develop scour fragility functions for other bridge components.

Name		Name	Last commit message	Last commit date
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.vscode		.vscode
fibre_division_effects		fibre_division_effects
pictures		pictures
softening_effects		softening_effects
.DS_Store		.DS_Store
README.md		README.md
arch_subdivision_automatisation.ipynb		arch_subdivision_automatisation.ipynb
circle_points_coordinates.csv		circle_points_coordinates.csv
circle_points_coordinates_left_origin.csv		circle_points_coordinates_left_origin.csv
code_time_measurement.ipynb		code_time_measurement.ipynb
condition_factor_against_scour_depth.ipynb		condition_factor_against_scour_depth.ipynb
condition_factor_df.csv		condition_factor_df.csv
coordinates.csv		coordinates.csv
eight_arch_compressive_demand_from_backfill.ipynb		eight_arch_compressive_demand_from_backfill.ipynb
eighteen_pier_compressive_total_demand.ipynb		eighteen_pier_compressive_total_demand.ipynb
elastic_plastic_double_fixed_restraint_reactions_against_scour_depth.xlsx		elastic_plastic_double_fixed_restraint_reactions_against_scour_depth.xlsx
eleven_arch_compressive_total_demand.ipynb		eleven_arch_compressive_total_demand.ipynb
fifteen_pier_condition_factor.ipynb		fifteen_pier_condition_factor.ipynb
five_arch_capacity.ipynb		five_arch_capacity.ipynb
forces_and_stresses_vertical_dead_loads_and_pier_vertical_displacement.xlsx		forces_and_stresses_vertical_dead_loads_and_pier_vertical_displacement.xlsx
four_arch_condition_factor.ipynb		four_arch_condition_factor.ipynb
fourteen_arch_compression_scour_fragility_function.ipynb		fourteen_arch_compression_scour_fragility_function.ipynb
including_im_zero_solution.ipynb		including_im_zero_solution.ipynb
masonry_compressive_realisations.csv		masonry_compressive_realisations.csv
masonry_unit_weight_realisations.csv		masonry_unit_weight_realisations.csv
nine_arch_compressive_demand_from_spandrel_walls.ipynb		nine_arch_compressive_demand_from_spandrel_walls.ipynb
nineenteen_pier_compressive_limit_state_equation.ipynb		nineenteen_pier_compressive_limit_state_equation.ipynb
one_bridge_geometry.ipynb		one_bridge_geometry.ipynb
panici_bridge_assessment.code-workspace		panici_bridge_assessment.code-workspace
panici_bridge_deterministic_reactions.csv		panici_bridge_deterministic_reactions.csv
panici_bridge_probabilistic_assessment.ipynb		panici_bridge_probabilistic_assessment.ipynb
points_coordinates_nodal_loads.csv		points_coordinates_nodal_loads.csv
points_coordinates_nodal_loads_all.csv		points_coordinates_nodal_loads_all.csv
realisations_vector_file_name		realisations_vector_file_name
seven_arch_compressive_demand_from_arch.ipynb		seven_arch_compressive_demand_from_arch.ipynb
seventeen_pier_compression_demand_from_pier.ipynb		seventeen_pier_compression_demand_from_pier.ipynb
six_unit_weight_sampling.ipynb		six_unit_weight_sampling.ipynb
sixteen_pier_capacity.ipynb		sixteen_pier_capacity.ipynb
ten_arch_compressive_demand_from_parapets.ipynb		ten_arch_compressive_demand_from_parapets.ipynb
thirteen_arch_compressive_failure_probability_data.xlsx		thirteen_arch_compressive_failure_probability_data.xlsx
thirteen_fitting_arch_compressive_failure_probability_data.xlsx		thirteen_fitting_arch_compressive_failure_probability_data.xlsx
thirteen_fitting_arch_compressive_failure_probability_data_stack_implementation.ipynb		thirteen_fitting_arch_compressive_failure_probability_data_stack_implementation.ipynb
thirteen_fitting_failure_probability_data_stack_implementation_guide.pdf		thirteen_fitting_failure_probability_data_stack_implementation_guide.pdf
three_compressive_resistance_sampling.ipynb		three_compressive_resistance_sampling.ipynb
twelve_arch_compressive_limit_state_equation.ipynb		twelve_arch_compressive_limit_state_equation.ipynb
twenty_fitting_pier_compressive_failure_probability_data.ipynb		twenty_fitting_pier_compressive_failure_probability_data.ipynb
twenty_pier_compressive_failure_probability_data.xlsx		twenty_pier_compressive_failure_probability_data.xlsx
twentyone_foundation_bearing_capacity.ipynb		twentyone_foundation_bearing_capacity.ipynb
two_compressive_resistances.txt		two_compressive_resistances.txt
two_masonry_compressive_resistance.ipynb		two_masonry_compressive_resistance.ipynb
zero_reset_stored_variables.ipynb		zero_reset_stored_variables.ipynb

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