Arena da Amazônia: Os Desafios do Escopo, Prazo e Custo
29
Aldo MATTOS Carlos Henrique LIMA Gláucia ALVES José Antônio FERNANDES The management challenges of building a World Cup stadium in the Amazon
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Transcript of Arena da Amazônia: Os Desafios do Escopo, Prazo e Custo
Aldo MATTOS Carlos Henrique LIMA
Gláucia ALVES José Antônio FERNANDES
The management challenges of building a World Cup stadium in the Amazon
Authors
2
Amazon Arena
• Andrade GuCerrez General contractor
• GMP Architekten (Germany)
Architect
• 500M BRL (= 280M USD) Contract value
• 36 months DuraCon
• State of Amazonas Owner
Andrade GuCerrez 3
4
Area = 83,500 m²
5
Capacity = 43,300 seats
Amazon Arena
Floors East: 4 West: 5
Eleva?on Roof: + 31,75m street level Field: -‐11,00 m street level
Climate
Challenge no. 1
Manaus – rainfall (mm)
MANAUS
SÃO PAULO
RIO DE JANEIRO
Rainfall: 2300 mm/year Intense and short rainfall = loss of produc?vity
Climatempo
8
City mm/year Manaus 2300
NY 1270 Milan 1000
Amsterdam 900 Paris 650
London 600
Scope changes
Challenge no. 2
Scope changes
Host ciCes agreement:
“(…) reserving to the Organizing
Commi5ee and FIFA the right to
MODIFY, DELETE or ADD new
requirements AT ANY TIME un>l
the date of the compe>>on”
10
Scope changes – line of visibility
Fifa Football Stadiums Technical RecommendaCons and Requirements
11
Scope changes – line of visibility
Geometry: Proposal A Proposal B
Original grade
New grade
Corner
Andrade GuCerrez
12
Lowering the lower stands and the field level for beher visibility of public
Modified geometry
Quan??es: preliminary x final design
0 50.000 100.000 150.000 200.000 250.000 300.000 350.000 400.000
DemoliCon (m3)
Earthmoving (m3)
FoundaCon piles (m)
Concrete (m3)
Reinforcing steel (m)
Formwork (m2)
Steel structure (ton)
PTFE membrane (m2)
17.000
65.000
22.000
58.000
4.000
140.000
3.900
15.700
24.000
400.000
40.000
67.000
5.000
228.000
6.300
31.000 FINAL DESIGN
PRELIMINARY DESIGN
13
Manpower
More work; same Cme
0
200
400
600
800
1000
1200
ago/10
set/10
out/10
nov/10
dez/10
jan/11
fev/11
mar/11
abr/11
mai/11
jun/11
jul/1
1
ago/11
set/11
out/11
nov/11
dez/11
jan/12
fev/12
mar/12
abr/12
mai/12
jun/12
jul/1
2
ago/12
set/12
out/12
nov/12
dez/12
jan/13
fev/13
mar/13
abr/13
mai/13
jun/13
Final design
Preliminary design
Labor (quanCty)
14
Value engineering – cranes
6 fixed cranes
2 rail-‐mounted cranes
15
Value engineering – cranes
16
Equipment and Vehicles Total quantity: 175
Logistics
Challenge no. 3
Labor skills
Challenge no. 4
New technology
Challenge no. 5
• Lean thinking
• ProducCon management-‐based approach
• Work is structured throughout the process
• AcCviCes that add value x waste
• Necessary waste x unnecessary waste
Lean construc?on
22
Waste
23
Wai?ng Moving Unnecessary processes
Unused area Transporta?on Inventory
Overproduc?on Defects Delays
Areas of improvement
Reinforcing steel
produc?on
Precast concrete fabrica?on
Cast-‐in-‐place
concrete
Laboratory
24
Lean construc?on – steps
1. Flowchart 2. QualitaCve assessment of waste 3. Measurement of displacements 4. Tape-‐recording and analysis 5. Layout opCmizaCon 6. PreparaCon of operaConal procedures 7. MounCng of control boards 8. Waste management 9. Visual signs
25
! Conclusions
Amazon Arena
26
Conclusions
1. Scope changes represent a major risk for owners and contractors
2. Scope changes are harmful for public works – agencies cannot get funds in due Cme
3. Projects must be budgeted for Cme and money conCngencies – this is difficult for public agencies
4. Adverse weather, low-‐skilled labor, shortage of workers, complicated logisCcs and frequent change orders can only be mastered by an exhausCve process of planning and control
5. Lean construcCon is suitable for repeCCve works
27
Cost Overrun in the 12 Stadiums
28
R$-‐
R$200.000.000,00
R$400.000.000,00
R$600.000.000,00
R$800.000.000,00
R$1.000.000.000,00
R$1.200.000.000,00
R$1.400.000.000,00
R$1.600.000.000,00
Expected Cost Final Cost
