Generative Design and Parametric Modeling advanced computational modeling Allen LaSala – Dallas, Texas Thornton Tomasetti
The Associated General Contractors of America (AGC) is a Registered Provider with The American Institute of Architects Continuing Education Systems. Credit earned on completion of this program will be reported to CES Records for AIA members. Certificates of Completion are available on request. This program is registered with the AIA/CES for continuing professional education. As such it does not include content that may be deemed or construed to be an approval or endorsement by the AIA of any material of construction or any method or manner of handling, using, distributing, or dealing in any material or product. Questions related to specific materials, methods, and services will be addressed at the conclusion of this presentation.
Copyright
This presentation and the materials provided are protected by U.S. and International copyright laws. Reproduction, distribution, display and use of the presentation or materials without written permission is prohibited. © AGC of America, 2012
Course Description Thornton Tomasetti (TT) is an internationally recognized engineering company. TT’s Advanced Computational Modeling (ACM) team works at the forefront of computation practices. TT utilizes a wide range of commercially available as well as customized digital tools and automation procedures to model, simulate, analyze, and optimize engineering projects of various scales worldwide. By creating a collaborative dialog with the designer at the conceptual phase, the architectural, engineering & fabrication models can be developed simultaneously from the same geometric reference model, allowing a holistic design process. Using a number of recent examples, this presentation will showcase how computational tools can be tailored to greatly enhance the collaboration process between all parties involved in large-scale international construction projects. One example would be the 65,000 seat Basrah Main Stadium, designed by 360 Architecture. To realize this project successfully, software such as Digital Project and Tekla were automated to reduce the fabrication process of the 100 foot long GFRP skin panels by more than 18 months, while creating a BIM model that served the project team through all project phases, from concept design to digital fabrication.
Learning Objectives At the end of this presentation, attendees will be able to:
Attendees will be able to summarize Integrated design exploration utilizing advanced 'digital engines'. Attendees will be able to illustrate the digital fabrication approach from early design concepts through to production. Attendees will be able to identify integrated form finding approach for freeform structures using custom automization tools. Attendees will be able to identify interlinked architectural and engineering models for advanced analysis.
Generative Modeling
GENERATIVE MODELING + BIM BIM (Tekla, Revit, CATIA,…) CONCEPT(?) Integrated Project Delivery
Graphic by HOK
collabora model ing tive
Al-Menaa Soccer Stadium
360 Architecture
Automated Information Exchange
Al Menaa Soccer Stadium
Architectural Concept
Architect’s 3DSmax model
Automated Information Exchange
Al Menaa Soccer Stadium
Grasshopper Model Demo
Automated Information Exchange
Al Menaa Soccer Stadium
Grasshopper Model Demo
Automated Information Exchange
Al Menaa Soccer Stadium
Structural Analysis model
Automated Rhino to SAP translation
Automated Information Exchange
Al Menaa Soccer Stadium
REVIT Documentation model
Automated SAP to REVIT translation
Automated Information Exchange
Al Menaa Soccer Stadium
Revit Model
Automated Information Exchange
Basrah 30K Soccer Stadium
Revit Model
Al Menaa Soccer Stadium
Rendering by 360 Architects
Automated Information Exchange
Al Menaa Soccer Stadium
Membrane Warp Stresses
West 57th St. Residential
Bjarke Ingels Group, Denmark
Automated Information Exchange
W57th St
Scheme 1: June 15th 15 Floors
Scheme 2: Aug 12th 20 Floors
Scheme 3: Aug 23th 34 Floors
Automated Information Exchange
W57th St
Structural Model in Rhino
Generated from Architect’s floor plans and elevation data using Grasshopper
Automated Information Exchange
W57th St
Grasshopper Demo
Automated Information Exchange - Grasshopper to ETABS
W57th St
Structural geometry translator
TT in-house E2K text file creation
Automated Information Exchange - Grasshopper to ETABS
W57th St
•
Structural geometry translator
• TT in-
integrat analy sis
VTB Arena, Moscow
MANICA Architecture
Integrated Analysis
VTB Arena, Moscow Length Axis Length Axis 2 1(mm) (mm) Area (mm2) round a1 round a2 range a1 count a1 range a2 count a2 0 10992.00 7238.41 37226000.00 11000.00 7000.00 9000.00 2.00 5500.00 2.00min 1 11586.00 7604.86 40617000.00 11500.00 7500.00 9500.00 12.00 6000.00 1256.00max 2 12212.00 7909.85 44164000.00 12000.00 8000.00 10000.00 18.00 6500.00 187.00 3 12794.00 8077.95 47266000.00 13000.00 8000.00 10500.00 41.00 7000.00 120.00 4 13335.00 8033.73 49528000.00 13500.00 8000.00 11000.00 51.00 7500.00 77.00 5 13868.00 7917.84 51462000.00 14000.00 8000.00 11500.00 63.00 8000.00 57.00 6 14388.00 7750.29 52956000.00 14500.00 8000.00 12000.00 61.00 8500.00 29.00 7 14897.00 7544.69 54001000.00 15000.00 7500.00 12500.00 59.00 9000.00 35.00 8 15400.00 7315.29 54641000.00 15500.00 7500.00 13000.00 58.00 9500.00 23.00 9 15887.00 7131.91 55258000.00 16000.00 7000.00 13500.00 81.00 10000.00 31.00 10 16339.00 6885.61 54882000.00 16500.00 7000.00 14000.00 75.00 10500.00 20.00
Angle A Angle B 0 116.212661 113.173502 1 117.61059 112.826751 2 118.691855 113.594831 3 120.75759 114.371515 4 123.56208 116.109558 5 126.267276 118.296062 6 128.966301 120.701635 7 131.723265 123.194604 8 134.365394 125.864944 9 136.036988 128.778648 10 135.124833 135.064414
Structural Model in Rhino
Angle A / Angle B 1.02685398 1.042399865 1.044870211 1.055836237 1.064185259 1.067383596 1.068471865 1.069229177 1.067536279 1.056362915 1.000447335
Axis 1 Axis 2 9183.83 5729.17 20748.00 14380.00
Angle Sum Max Deviation Dist (eval srf) 360 5.336134 360 0.871038 360 1.130024 360 9.984354 360 14.836463 360 19.303195 360 23.444554 360 27.788725 360 31.773613 360 10.296549 360 302.36649 Generated from Architect’s floor plans and elevation data using Grasshopper
Integrated Analysis
VTB Arena, Moscow
Panel Callouts
Integrated Analysis
VTB Arena, Moscow
Reaction Forces and Warp Stress - Prestress without and with cables
Integrated Analysis
VTB Arena, Moscow Before
Panel Size: Max 115.5 m2 | Min: 23.1 m2
Panel Size and Panel Curvature
After
Integrated Analysis
VTB Arena, Moscow
Structural model defined in Grasshopper
Manica Architecture
Integrated Analysis
VTB Arena, Moscow
Member force analysis is SAP
Change from ETFE to Polycarbonate
VTB Arena, Moscow
Manica Architecture
Integrated Analysis
VTB Arena, Moscow
Change in structure and cladding: Polycarbonate
Integrated Analysis
VTB Arena, Moscow
before
after
Change in structure and cladding
Integrated Analysis
VTB Arena, Moscow
Roof model from SAP to Revit
From Sap to Revit
Integration with superstructure Revit model
Integrated Analysis
VTB Arena, Moscow
Building sections and 2D roof plan drawings in Revit
Integrated Analysis
VTB Arena, Moscow
Building sections and 2D roof plan drawings in Revit
Integrated Analysis
VTB Arena, Moscow
Building sections and 2D roof plan drawings in Revit
Integrated Analysis
VTB Arena, Moscow
Building sections and 2D roof plan drawings in Revit
Change from ETFE to Polycarbonate
VTB Arena, Moscow
Manica Architecture
Parametric Optimization
Glass Façade Panelization Out of plane warpage shown in percent Max warpage allowed: 0.57%
Tower Façade Optimization – original surface
Thornton Tomasetti R&D
Parametric Optimization
Cold Bending Explained Torsion in corners of edge spacer
Force to “press into form”
“Twist” offset < D/175 ?
Primary seal is main element of serviceability, seal is stressed by overall twist.
permanently: water tight? air tight?
D1 D2 D = (D1+D2)/2
Deflected edge shape depends on sub-structure stiffness, shape is not necessarily linear = impact on air-tightness joints.
Tower Façade Optimization – original surface
Iso-Glass
Stresses in panes usually rather small!
Parametric Optimization
Glass Façade Panelization Out of plane warpage shown in percent Max warpage allowed: 0.57%
Tower Façade Optimization – optimized surface
Thornton Tomasetti R&D
Parametric Optimization
Glass Façade Panelization Out Outofofplane planewarpage warpageshown shownininpercent percent Max Maxwarpage warpageallowed: allowed:0.57% 0.57%
Tower Façade Optimization – optimized surface
Thornton Tomasetti R&D
Parametric Optimization
Glass Façade Panelization
Tower Façade Optimization – genetic algorithm
Thornton Tomasetti R&D
Parametric Optimization
Glass Façade Panelization Out of plane warpage shown in percent Max warpage allowed: 0.57%
Wuhan Tower
Adrian Smith + Gordon Gill
Parametric Optimization
Glass Façade Panelization Pitched Mullion Analysis in X Axis
Tower Façade Optimization
Study to evaluate warpage, slope and pitch of the current configuration of façade panels, and to optimize for constructability and cost efficiency.
Parametric Optimization
Glass Façade Panelization Out of plane warpage shown in percent Max warpage allowed: 0.57%
Tower Façade Optimization
Parametrical Optimization
Rationalizing The Building Geometry
Tower Façade Optimization
Parametrical Optimization
Rationalizing The Building Geometry
NOMINAL DISPACEMENT FROM ORIGINAL CURVE
Tower Façade Optimization
softw are
Custom Software
TT Column Designer
Free Library Philadelphia
Safdie Architects
R&D
Full Generative Structure in Grasshopper Out of plane warpage shown in percent Max warpage allowed: 0.57%
Free Library Philadelphia
SAFDIE Architects
R&D
Automated Structural Model in SAP Out of plane warpage shown in percent Max warpage allowed: 0.57%
Free Library Philadelphia
SAFDIE Architects
Building Structures
Automated Structural Model in SAP Out of plane warpage shown in percent Max warpage allowed: 0.57%
Free Library Philadelphia
SAFDIE Architects
R&D
SAP to REVIT Translation Out of plane warpage shown in percent Max warpage allowed: 0.57%
Free Library Philadelphia
SAFDIE Architects
R&D
SAP to REVIT Translation Out of plane warpage shown in percent Max warpage allowed: 0.57%
Free Library Philadelphia
SAFDIE Architects
R&D
REVIT to TEKLA Translation
Free Library Philadelphia
SAFDIE Architects
Building Structures
Free Library Philadelphia
Building Sustainability
Embodied Carbon Calculator
Building Sustainability
Embodied Carbon Calculator
Material
Embodied Energy (MJ/kg)
Embodied Carbon (kg CO2e/kg)
Concrete
1.04
0.07
Steel
20.1
1.46
Aluminum
155.00
9.16
Glass
15.00
0.91
TimberLibrary Philadelphia 10.00 Free
0.72
Structural / Facade initial Embodied Energy represents 50% or more of the built project and 20+ % of the total embodied energy for the life of the building.
toget
bringing it all
Change from ETFE to Polycarbonate
Basrah Main Stadium
360 Architecture
Bringing it all together
Basrah 65K Skin Design Reduce number of molds from 10 to 5
A B C D
End zone
E
Movemen t Joints
Side Line Catia Model
Driven Parameters
Change from ETFE to Polycarbonate Geometry data output to Excel for bracket design coordination and cost estimation of GRP panel
Parametric Panel Informs Connection Brackets
Bringing it all together
Coordination Model
Bringing it all together
2220mm
Transportation Planning
Bringing it all together
Bracket Design
Bringing it all together
Automated Model Generation
• Catia to Tekla VBA
Bringing it all together
Automated Model Generation
Reference Geometry scripted in DP. Then translated into Tekla model.
Geometry Translation from DP into Tekla
Bringing it all together
Digital to Physical Modeling
GFRP Panel mold created from CATIA model
Bringing it all together
Digital to Physical Modeling
October 2010
Bringing it all together
Digital to Physical Modeling
February 2011
Bringing it all together
Digital to Physical Modeling
May 2011
Bringing it all together
Digital to Physical Modeling
August 2011
Bringing it all together
Digital to Physical Modeling
thank you
Thank you for your time.
Questions? Allen LaSala
[email protected]
