FIU Bridge Collapse 2024: The World‘s First multi-physics simulation of the FIU bridge collapse
0:00 - Introduction
0:36 - Bridge Collapse Video
1:04 - What went wrong during bridge design?
1:42 - What is post-tensioning?
2:34 - FIGG engineering and its design
2:47 - A critical part of the FIU bridge
3:01 - How to design the bridge components (rebars)?
3:46 - Common sense design of FIU bridge
4:23 - Python code - Shear Interface Resistance
4:50 - FIGG design of FIU bridge
5:20 - Cracks
6:20 - David interviews Danny Pate in Borneo
8:15 - How to improve the bridge design
9:25 - Simulation - FIU bridge collapse
9:37 - Simulation - FIU bridge collapse - slowed
references:
Las Ketchup - The Ketchup Song (Asereje)
• Las Ketchup - The Ketchup Song (Asere...
Pedestrian Bridge Collapse Over SW 8th Street
Miami, Florida
March 15, 2018
Accident Report
NTSB/HAR-19/02
PB2019-101363
https://en.wikipedia.org/wiki/Florida...
https://sheerforceeng.com/2021/10/06/...
https://www.topmediai.com/app/text-to...
https://www.sciencedirect.com/science...
Investigation of collapse of Florida International University (FIU) pedestrian bridge
https://www.sciencedirect.com/science...
A forensic analysis of the Florida International University pedestrian bridge collapse using incident video footages
https://www.sciencedirect.com/science...
Failure assessment and virtual scenario reproduction of the progressive collapse of the FIU bridge
https://www.sciencedirect.com/science...
On the collapse of a post-tensioned reinforced concrete truss bridge during the construction phases
Google Scholar:
https://scholar.google.de/citations?u...
Researchgate:
https://www.researchgate.net/profile/...
OrcID:
https://orcid.org/my-orcid?orcid=0000...
GitHub:
https://github.com/hnrwagner
ABAQUS like FREE to use FEA Software:
https://prepomax.fs.um.si/
#oceangate #titanic #implosion
#fiu #bridgecollapse #simulation
Python Code:
-*- coding: utf-8 -*-
"""
Created on Sat Aug 3 13:17:26 2024
calculation for node region 11 / 12
@author: Ronald
"""
c = 0.0 # ksi - Cohesion factor - 0 means no cohesion
A_cv = 882 # inch^2 - area of concrete - width * length = 21 inch * 42 inch
mu = 1.0 # dimensionless - friction coefficient - 1.0 means clean interface
A_vf = 17 # inch^2 - shear reinforcement area - design target !!!
f_y = 60 # ksi - yield strength of rebars
P_c = 1233 # kips - compressive force, is 0 if its a tension force, duh...
V_ni = c * A_cv + mu * (A_vf * f_y + P_c) # kips - nominal interface resistance
SF = Interface Shear Capacity / Shear Resistance Demand
#
phi = 0.9 # shear resistance factor
V_ri = phi * V_ni # kips - Interface Shear Capacity - 1369 kips
print("Interface Shear Capacity = "+str(V_ri)+str(" kips"))