centre pompidou metz - holzbau amann
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CENTRE POMPIDOU METZ
TheTheTheThe Centre Pompidou MetzCentre Pompidou MetzCentre Pompidou MetzCentre Pompidou Metz
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ContributorContributorContributorContributor::::
Tobias DoebeleTobias DoebeleTobias DoebeleTobias Doebele
- Graduate engineer (FH) for timber constructions- working for Amann since 2004
TasksTasksTasksTasks::::
- Calculation and order acquisition
- Project management
- All projects outside of Germany
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IntroductionIntroductionIntroductionIntroduction Holzbau Amann:Holzbau Amann:Holzbau Amann:Holzbau Amann:- Established in 1932
South Western Germany, close to Swiss and French border
Founder Xaver Amann + 2 employees
Traditional carpentry
- 1955 Gerhard Amann joins the company
~ 15 employeesFocus on major projects
- 2008 one of the leading timber construction companies in Germany
~ 50 employees (graduated engineers, master technicians, masters, etc.)
Major timber construction projects in Germany and abroad
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Realized projects since 1932Realized projects since 1932Realized projects since 1932Realized projects since 1932
- 51 sports halls
- 56 industry halls
- 29 schools
- 27 community centers
- 29 constructions for sport (from natatoriums to ski jumps)
- 17 spa hotels
- 6 office buildings
- 9 restaurants
- 75 residential houses
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TheTheTheThe HermesHermesHermesHermes RoofRoofRoofRoofWorld Exhibition EXPO 2000, Hannover Germany
Architects:Architects:Architects:Architects: Herzog+Partners, Munich
Date:Date:Date:Date: 1999/2000
SpecificationsSpecificationsSpecificationsSpecifications::::40 grid-shells 20x20m
10 columns, height ~ 25m, consisting each of 4 logs, ~ 1,40m
Roof surface ~ 16.000 m
ScopeScopeScopeScope ofofofof workworkworkwork Holzbau Amann:Holzbau Amann:Holzbau Amann:Holzbau Amann:
Design and planning of the entire timber construction
Factory assembly and assembly on site of the columns
On site pre-assembly of the grid-shells
Assembly on site of the entire roof construction
at peak ~ 200 carpenters on site
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TheTheTheThe HermesHermesHermesHermes RoofRoofRoofRoofWorld Exhibition EXPO 2000, Hannover Germany
Pre-assembly of the shells in the mould
Completed shell
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TheTheTheThe HermesHermesHermesHermes RoofRoofRoofRoofWorld Exhibition EXPO 2000, Hannover Germany
Shell is installed to columns
The 4 shells installed to the columns
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TheTheTheThe HermesHermesHermesHermes RoofRoofRoofRoofWorld Exhibition EXPO 2000, Hannover Germany
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ChesaChesaChesaChesa FuturaFuturaFuturaFuturaSt. Moritz, Switzerland
Architects:Architects:Architects:Architects: Foster and Partners, London
Date:Date:Date:Date: 2001/2002
SpecificationsSpecificationsSpecificationsSpecifications::::High-standard appartment house
10 flats (from 120m to 400m)
~ 230 m Gluelam
~ 15 tons of steel
~ 2500m larch shingles
ScopeScopeScopeScope ofofofof workworkworkwork Holzbau Amann:Holzbau Amann:Holzbau Amann:Holzbau Amann:
Design and planning of the entire timber construction
Factory preparation and on site assembly of the timber construction
Thermal insulation and interior fittings
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ChesaChesaChesaChesa FuturaFuturaFuturaFuturaSt. Moritz, Switzerland
architects sketches
photomontage
architects 3D model
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ChesaChesaChesaChesa FuturaFuturaFuturaFutura
St. Moritz, Switzerland
pre-assembly of the wall and floor elements
wall elements ready for transport
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ChesaChesaChesaChesa FuturaFuturaFuturaFutura
St. Moritz, Switzerland
assembly of the elements on site
Exterior walls, curved in 2 directions, during assembly
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ChesaChesaChesaChesa FuturaFuturaFuturaFutura
St. Moritz, Switzerland
Interior walls during assembly
Facade with Larch shingles
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ChesaChesaChesaChesa FuturaFuturaFuturaFutura
St. Moritz, Switzerland
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SAP ArenaSAP ArenaSAP ArenaSAP ArenaMannheim, Germany
Architects:Architects:Architects:Architects: Hentrich Petschnigg + Partners, Duesseldorf
Date:Date:Date:Date: 2003/2004
SpecificationsSpecificationsSpecificationsSpecifications::::
Timber truss construction in gluelam ~ 90 m span
Height of the truss ~ 8,0m
~ 1500 m Gluelam~ 225 tons of steel
ScopeScopeScopeScope ofofofof workworkworkwork Holzbau Amann:Holzbau Amann:Holzbau Amann:Holzbau Amann:
Design and planning of the entire timber roof construction
Factory preparation and on site pre-assembly of the trusses
Assembly on site of the entire roof constructionat
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SAP ArenaSAP ArenaSAP ArenaSAP Arena
Mannheim, Germany
Pre-assembled trusses on site
Assembly of the roof construction
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SAP ArenaSAP ArenaSAP ArenaSAP Arena
Mannheim, Germany
Truss supports during the assembly
Assembly roof overhang
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SAP ArenaSAP ArenaSAP ArenaSAP Arena
Mannheim, Germany
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TheTheTheThe Centre Pompidou ParisCentre Pompidou ParisCentre Pompidou ParisCentre Pompidou Paris
TheTheTheThe Centre Pompidou at Paris, France:Centre Pompidou at Paris, France:Centre Pompidou at Paris, France:Centre Pompidou at Paris, France:
National Centre of Modern Arts and Culture
Architects Renzo Piano, Richard Rogers and Gianfranco Franchini
Built 1971 - 1977
Georges Jean Raymond Pompidou:Georges Jean Raymond Pompidou:Georges Jean Raymond Pompidou:Georges Jean Raymond Pompidou:
French Prime Minister 1962 - 1968 French President 1969 1974 ()
Art lover and patron
Promoter of the Project
To honour his merits, the Centre
today bears his name
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TheTheTheThe Centre Pompidou MetzCentre Pompidou MetzCentre Pompidou MetzCentre Pompidou Metz
WhyWhyWhyWhy buildingbuildingbuildingbuilding anananan agencyagencyagencyagency ofofofof thethethethe Centre Pompidou?Centre Pompidou?Centre Pompidou?Centre Pompidou?
Project of Decentralization
WhyWhyWhyWhy at Metz?at Metz?at Metz?at Metz? Metz was the only city left in the end of the
competition.
Other cities, like e.G. Marseille, abandoned the
projectTheTheTheThe architecturalarchitecturalarchitecturalarchitectural competitioncompetitioncompetitioncompetition::::
in 2003 international architectural competition
Richard Rogers chose 6 competitors
Japanese architect Shigeru BanShigeru BanShigeru BanShigeru Ban won the
competition
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HowHowHowHow Holzbau AmannHolzbau AmannHolzbau AmannHolzbau Amann gotgotgotgot intointointointo thethethethe projectprojectprojectproject
Fall 2004: Email from an engineering office from London
develop its constructability and make a preliminary cost estimate
Wait a minute
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HowHowHowHow Holzbau AmannHolzbau AmannHolzbau AmannHolzbau Amann gotgotgotgot intointointointo thethethethe projectprojectprojectproject
On inquiry, more informations were provided:
- Roof surface about 8500m
- Roof composed of grillage elments, grid spacing ~3.0m
- Each grillage element constructed from a threethreethreethree-layer stack of planks,
30cm wide by 8.2cm thick
- Each plank manufactured from multiple layers of LVL board (Kerto)
- Each layer of LVL glued and srewed together to form the composite plank
- Composite planks cut to fit in one direction, bend in the other direction- Three layer grillage constructed by alternately stacking the planks to form
a composite open stack
- Additional shear blocks installed between the planks
- Roof covered with a PTFE mebrane
- Roof construction not only supported by the 4 columns, also by the
concrete structure and by the steel structure (tower).
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HowHowHowHow Holzbau AmannHolzbau AmannHolzbau AmannHolzbau Amann gotgotgotgot intointointointo thethethethe projectprojectprojectproject
TheTheTheThe engineersengineersengineersengineers solutionsolutionsolutionsolution
3d modell with allallallall supports Composition of the grillage
Grillage
Bending of the
planks
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HowHowHowHow Holzbau AmannHolzbau AmannHolzbau AmannHolzbau Amann gotgotgotgot intointointointo thethethethe projectprojectprojectproject
And eventually some visualizations
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HowHowHowHow Holzbau AmannHolzbau AmannHolzbau AmannHolzbau Amann gotgotgotgot intointointointo thethethethe projectprojectprojectproject
Evaluation ofEvaluation ofEvaluation ofEvaluation of thethethethe projectedprojectedprojectedprojected solutionsolutionsolutionsolution
Pro:Pro:Pro:Pro:
- Kerto Q is high-capacity timber product
Contra:Contra:Contra:Contra:
---- Material cost and waste material when cutting the layers for the planks- Glueing on the site risky, since depending to weather conditions
- bending of the planks in one direction
- Can only be build with moulds or with falseworks under the roof structure
during the assembly.
8500m Freeform structure = 8500m moulds or falseworks!
- General doubts on the correctness of the structural analysis
3d modell correct, connections, loads, load combinations, and results?
Verification not possible, since no calculations were ever presented by the engineer
ProposingProposingProposingProposing aaaa variantvariantvariantvariant seemedseemedseemedseemed oppurtuneoppurtuneoppurtuneoppurtune
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RoofRoofRoofRoof structurestructurestructurestructure
Holzbau Amann teamed up with Swiss wood expert and consultant Hermann Blumer.
First propostion: 3 layers of single, intersecting gluelam beams with hexagonal shapes
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RoofRoofRoofRoof structurestructurestructurestructure
UnfortunatelyUnfortunatelyUnfortunatelyUnfortunately
Shigeru Ban
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RoofRoofRoofRoof structurestructurestructurestructure
We forgot one thing
the architects inspirationa Chinese hat
A woven, multi-layer structure! No single beams!
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RoofRoofRoofRoof structurestructurestructurestructure
Second proposition: 3 double-layers of intersecting gluelam planks with rectangular shapes.
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RoofRoofRoofRoof structurestructurestructurestructure
Shigeru Ban
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RoofRoofRoofRoof structurestructurestructurestructure
VirendelVirendelVirendelVirendel SystemSystemSystemSystem
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RoofRoofRoofRoof structurestructurestructurestructure
SpecificationsSpecificationsSpecificationsSpecifications acceptedacceptedacceptedaccepted solutionsolutionsolutionsolution::::
- 3 double-layers of intersecting gluelam planks, mainly GL24 grading.
- gluelam planks are glued curved in one direction. The curvature in the
second direction and the twisting is achieved by milling the beams
on the CNC machine.
- connection plank to plank: factory glued-in LVL pins with a threaded rod
- additional shear blocks between the planks
Advantages:Advantages:Advantages:Advantages:
- economically advantageous
- less material Less dead load (significant load in this construction!)
- no glueing on site
- no moulds or false-work needed, just temporary supports for assembly on site
- geometrical shape achieved by CAD design and CNC milling, not by
bending and twisting the planks high accuracy
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RoofRoofRoofRoof structurestructurestructurestructure
Detail of pinPrestressed threaded rod with disc springs
Transmission bending moments
and lateral forces
Detail of shear block
Kerto Q block(s) screwed between the planks
Transmission of shear forces between upper and
lower plank
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RoofRoofRoofRoof structurestructurestructurestructure
The model for the structuralanalysis
40000 single bars for the
timber construction
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RoofRoofRoofRoof structurestructurestructurestructure
Specifications:
- Roof surface ~ 8000 m
- Gluelam ~ 1000 m
= 18.000 lfm
= 1600 singe beams
- LVL Pins ~ 15.000 Stck
- Kerto shear block ca. 8000 pieces
- Steel elements ~ 11 tons
General Contractor: Demathieu & Bard, FranceContractor timber construction: Holzbau Amann, Germany
Structural Engineer timber construction: SJBSJBSJBSJB, Switzerland
R fR fR fR f t tt tt tt t
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RoofRoofRoofRoof structurestructurestructurestructure
2 mock-ups have been built
First mock-up (12x12m) after completion
First mock-up during laying the
foundation stoneSecond mock-up (9x9m) on the site
R fR fR fR f t tt tt tt t
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RoofRoofRoofRoof structurestructurestructurestructure
strength testing at the laboratories of the Swiss Federal Institute of Technology at Biel
FromF oF oFrom thethethethe 3D3D3D3D modelodelodelmodel totototo thethethethe trimmedt i edt i edtrimmed plankl kl kplank
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FromFromFromFrom thethethethe 3D3D3D3D modelmodelmodelmodel totototo thethethethe trimmedtrimmedtrimmedtrimmed plankplankplankplank
Starting point: 3D model from the tender
Unfortunately not directly usable for the structural analysis not sufficiently accurate
Only the fixed points (supports) could be directly transfered,
the rest of the geometry had to be reworked
FromFromFromFrom thethethethe 3D3D3D3D modelmodelmodelmodel totototo thethethethe trimmedtrimmedtrimmedtrimmed plankplankplankplank
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FromFromFromFrom thethethethe 3D3D3D3D modelmodelmodelmodel totototo thethethethe trimmedtrimmedtrimmedtrimmed plankplankplankplank
3D model imported into the structural analysis software RSTAB
geometrical corrections were realized directly on the structural
analysis modell
~ 45000 bars
~ 30000 nodes
FromFromFromFrom thethethethe 3D3D3D3D modelmodelmodelmodel totototo thethethethe trimmedtrimmedtrimmedtrimmed plankplankplankplank
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FromFromFromFrom thethethethe 3D3D3D3D modelmodelmodelmodel totototo thethethethe trimmedtrimmedtrimmedtrimmed plankplankplankplank
3D Modell from RSTAB transformed in a dxf file
some more adaptations and revisions were necessary
architect asked for some corrections to the contours of the edges of the roof
finally on July 27th, 2007:
Shigeru Ban approved thegeometry
FromFromFromFrom thethethethe 3D3D3D3D modelmodelmodelmodel totototo thethethethe trimmedtrimmedtrimmedtrimmed plankplankplankplank
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FromFromFromFrom thethethethe 3D3D3D3D modelmodelmodelmodel totototo thethethethe trimmedtrimmedtrimmedtrimmed plankplankplankplank
3D dxf model provides the geometrie of the system lines
does not provide real curves, just discretizations
is not able do create freeform surfaces
Another software was needed!
Holzbau Amann chose the software RHINORHINORHINORHINO:
perfectly adapted to design freeform surfaces (nurbs)
well-proven already for Chesa Futura
easy to learn and handle
quite a bargain
possible to create and install plugins for additional functions
FromFromFromFrom thethethethe 3D3D3D3D modelmodelmodelmodel totototo thethethethe trimmedtrimmedtrimmedtrimmed plankplankplankplank
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FromFromFromFrom thethethethe 3D3D3D3D modelmodelmodelmodel totototo thethethethe trimmedtrimmedtrimmedtrimmed plankplankplankplank
DXF RHINOHolzbau AmannHolzbau AmannHolzbau AmannHolzbau Amann
DESIGNDESIGNDESIGNDESIGNTOPRODUCTIONPRODUCTIONPRODUCTIONPRODUCTION
icappcappcappcapp
- Surface relaxation
- blanks
- division of the planks
- Smoothing the surface
FromFromFromFrom thethethethe 3D3D3D3D modelmodelmodelmodel totototo thethethethe trimmedtrimmedtrimmedtrimmed plankplankplankplank
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FromFromFromFrom thethethethe 3D3D3D3D modelmodelmodelmodel totototo thethethethe trimmedtrimmedtrimmedtrimmed plankplankplankplank
Rhino model of the roof structure
FromFromFromFrom thethethethe 3D3D3D3D modelmodelmodelmodel totototo thethethethe trimmedtrimmedtrimmedtrimmed plankplankplankplank
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FromFromFromFrom thethethethe 3D3D3D3D modelmodelmodelmodel totototo thethethethe trimmedtrimmedtrimmedtrimmed plankplankplankplank
Each plank (blank and finished piece) is imported from Rhino into CADWORKCADWORKCADWORKCADWORK
via .sat file
In CADWORKCADWORKCADWORKCADWORK:
- designing and integrating of the connection elements
- generating production lists and shop-drawings
- adjustment to the trimming line
FromFromFromFrom thethethethe 3D3D3D3D modelmodelmodelmodel totototo thethethethe trimmedtrimmedtrimmedtrimmed plankplankplankplank
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FromFromFromFrom thethethethe 3D3D3D3D modelmodelmodelmodel totototo thethethethe trimmedtrimmedtrimmedtrimmed plankplankplankplank
3D model of each plank (blank and finished piece) is exported from Cadwork
as .sat files and imported into the PEPS software
PEPS CAM-system (Computer Aided Manufacturing)
FromFromFromFrom thethethethe 3D3D3D3D modelmodelmodelmodel totototo thethethethe trimmedtrimmedtrimmedtrimmed plankplankplankplank
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pppp
PEPSPEPSPEPSPEPS has ahas ahas ahas a graphicalgraphicalgraphicalgraphical useruseruseruser interfaceinterfaceinterfaceinterface
the points for cuts, drill-holes, etc. can be picked from the 3d model
PEPS calculates and generates the necessary commands for the trimming line
for the 5 axis milling of the planks plugins have been programmed
Click on edge of a plank PEPS generates commands for the trimming line
machining can be simulated in PEPS
errors can be detected before the plank is on the trimming line!
FromFromFromFrom thethethethe 3D3D3D3D modelmodelmodelmodel totototo thethethethe trimmedtrimmedtrimmedtrimmed plankplankplankplank
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pppp
FromFromFromFrom thethethethe 3D3D3D3D modelmodelmodelmodel totototo thethethethe trimmedtrimmedtrimmedtrimmed plankplankplankplank
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SomeSomeSomeSome figuresfiguresfiguresfigures onononon thethethethe trimmingtrimmingtrimmingtrimming
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GluelamGluelamGluelamGluelam ~ 1400 m blanks~ 1000 m on site
~ 18000 lfm
~ 1600 singe beams
SheduledSheduledSheduledSheduled timetimetimetime forforforfor trimmingtrimmingtrimmingtrimming ~ 10 months
SheduledSheduledSheduledSheduled beginningbeginningbeginningbeginning trimmingtrimmingtrimmingtrimming ~ April/Mai 2008
SheduledSheduledSheduledSheduled assemblyassemblyassemblyassembly onononon sitesitesitesite ~ February 2009
~ 3 months
TheTheTheThe Centre Pompidou MetzCentre Pompidou MetzCentre Pompidou MetzCentre Pompidou Metz
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ee pCe e o p o eCe e o p o ep
Thank you for your attention
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