Uploaded July 2015 | Updated September 2026, 1 hour ago
This video shows various Blender Bullet physics simulations of a constraint based structure that is modelled automatically based on real world parameters by an addon which is developed as part of the INACHUS research project.
More specifically this video shows the first „backbone“-configuration test case: A residential high-rise building with 17 upper floors and 3 underground floors. The dimensions of the building is 23.5 x 23.5 m with a height of 62.1 m over ground. The main supporting structure of the building is a reinforced concrete framework that consists of peripheral facade columns and a central shear core stabilizing the structure against horizontal forces.
The simulation scenario is an explosion under ground which
eliminates the 3 lowest columns at one building corner.
All the constraints between the rigid bodies were placed by the Bullet Constraints Builder script v1.51.
The script automatically calculates breaking thresholds as well as element mass.
The first 5 sequences in this video show that the building stands upright without collapsing, while changing the pillar joints from rigid to hinges and different concrete strengths: C60, C30, C20. The reason for the resistance might lay in the massive girders between ground floor and underground floor.
Only if the core and slabs are changed to C10 concrete the building collapses.
The INACHUS project is a European wide research project starting in 2015, that examines measures to improve first response after building collapse in catastrophic events like earthquakes, storms, explosions etc.
"INACHUS" stands for:
Technological & Methodological Solutions for Integrated Wide Area Situation Awareness & Survivor Localization to Support Search & Rescue Teams
Updated version of this video:
youtube.com/watch?v=QUHTGhFfwlE
See a video on the problems:
youtube.com/watch?v=dVuTOj8Spcc
Credits & Links:
INACHUS - H2020, InvestEUresearch, EU-funded research, science
http://www.inachus.eu
Laurea University of Applied Sciences LUAS, Finland
Kai Kostack, Oliver Walter, Seija Tiainen
inachuslaurea.wordpress.com
A paper on the system can be provided upon request.
High-rise building designed and provided by Schüßler-Plan GmbH
schuessler-plan.de
github.com/KaiKostack/bullet-constraints-builder
This video shows various Blender Bullet physics simulations of a constraint based structure that is modelled automatically based on real world parameters by an addon which is developed as part of the INACHUS research project.
More specifically this video shows the first „backbone“-configuration test case: A residential high-rise building with 17 upper floors and 3 underground floors. The dimensions of the building is 23.5 x 23.5 m with a height of 62.1 m over ground. The main supporting structure of the building is a reinforced concrete framework that consists of peripheral facade columns and a central shear core stabilizing the structure against horizontal forces.
The simulation scenario is an explosion under ground which
eliminates the 3 lowest columns at one building corner.
All the constraints between the rigid bodies were placed by the Bullet Constraints Builder script v1.51.
The script automatically calculates breaking thresholds as well as element mass.
The first 5 sequences in this video show that the building stands upright without collapsing, while changing the pillar joints from rigid to hinges and different concrete strengths: C60, C30, C20. The reason for the resistance might lay in the massive girders between ground floor and underground floor.
Only if the core and slabs are changed to C10 concrete the building collapses.
The INACHUS project is a European wide research project starting in 2015, that examines measures to improve first response after building collapse in catastrophic events like earthquakes, storms, explosions etc.
"INACHUS" stands for:
Technological & Methodological Solutions for Integrated Wide Area Situation Awareness & Survivor Localization to Support Search & Rescue Teams
Updated version of this video:
youtube.com/watch?v=QUHTGhFfwlE
See a video on the problems:
youtube.com/watch?v=dVuTOj8Spcc
Credits & Links:
INACHUS - H2020, InvestEUresearch, EU-funded research, science
http://www.inachus.eu
Laurea University of Applied Sciences LUAS, Finland
Kai Kostack, Oliver Walter, Seija Tiainen
inachuslaurea.wordpress.com
A paper on the system can be provided upon request.
High-rise building designed and provided by Schüßler-Plan GmbH
schuessler-plan.de
github.com/KaiKostack/bullet-constraints-builder
![Condo Collapse Simulation | Champlain Towers South Surfside, Florida, Miami [8K]](https://i.ytimg.com/vi/HPwJ0JvTcg8/mqdefault.jpg "Condo Collapse Simulation | Champlain Towers South Surfside, Florida, Miami [8K]
On the 24th of June 2021 at night the Champlain Towers South, a 12-story beachfront condominium in the Miami suburb of Surfside, Florida collapsed partially. This collapse simulation was made based on the presently available data, eyewitness, and video accounts.
The authors are independent researchers and impartial hoping to constructively contribute to the fact-finding. This study demonstrates the collapse mechanism assuming the following plausible hypothesis:
According to the data, the basement deck showed signs of extended soaking for many years. The problem was locally insufficiently patched and not rectified in its entirety. The wetting caused the deck ceiling to be weakened to such an extent that basement pillars punched through the deck where additional load had peaked at the planter area.
The authors hope to not distress relatives of victims with the application of dummy dolls in this simulation that have the sole purpose of tracking victims in potential cavities within the debris.
Air pockets visualization followup: https://youtu.be/XkwHxVGKQKU
The Bullet-Constraints-Builder simulation software is open-source, it was developed within the EU FP7 funded INACHUS framework.
Kostack Studio was supported by Architect Oliver Walter with the data analysis.
Main sources:
https://youtu.be/KR29pLccutY
8777-collins-avenue preliminary-review-plans-for-40-year-re-certification.pdf
8777-collins-ave-1979-plans.pdf
8777-collins-ave unverified-inspection-report.pdf
Credits:
Simulation & video by Kai Kostack
http://kostackstudio.de
Consultant: Dipl. Arch. ETH Oliver Walter
Music:
Sergey Cheremisinov - Fog (CC BY)
Kevin Hartnell - Aurora (CC BY)
Made with Blender + BCB + Fracture Modifier
https://blender.org
https://inachuslaurea.wordpress.com
https://github.com/KaiKostack/bullet-constraints-builder
https://blenderartists.org/forum/showthread.php?343637-Custom-Build-Blender-Fracture-Modifier
The BCB structural simulation software has been developed at the Laurea University of Applied Sciences, Finland. Written within the scope of EU Inachus FP7 Project (607522): Technological and Methodological Solutions for Integrated Wide Area Situation Awareness and Survivor Localisation to Support Search and Rescue (USaR) Teams")
