Column rehabilitation - Vasco da Gama bridge - Lisbon, Portugal

Vasco da Gama Bridge, Lisbon

Axial

Column rehabilitation - Vasco da Gama bridge - Lisbon, Portugal

The Vasco da Gama bridge south viaduct (year of construction 1998) was repaired. This viaduct deck is 3 825 metres long and composed by 45 metre spans over 85 support alignments of 4 columns each, founded on bored piles located partly in the Tagus river bank and partly offshore. The onshore columns land on the Samouco salt pan. Some column pathologies have been detected and are in the root of the presented works. Concrete local delamination, cracking, the existence of voids, grooves and unevenness on concrete cover are examples of pathologies found. Many of these occur in the pile/column transition.

Topic 
Column rehabilitation
Object 
Vasco da Gama bridge
City 
Lisbon
State 
Lisbon
Country 
Portugal
Date 
2017
Duration 
12 Months

Situation

Local concrete delamination, cracking, the existence of voids, grooves and unevenness on the concrete cover are examples of pathologies found. Many of these occur in the pile/column transition.

Solution

42 columns were retrofitted, 32 of which with 2.00 m and 10 with 1.80 m of diameter with two layers of C-Sheet 240 (400 g/m2) 30 cm wide, 20 cm spaced, and using the S&P impregnation equipment for wet lay-up .

Material

S&P C-Sheet 240 (400 g/m2) – total predicted amount of 1600 m2, S&P Resicem – total predicted amount of 2560 kg

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  • Vasco da Gama Bridge, Lisbon
  • Vasco da Gama Bridge, Lisbon
  • Vasco da Gama Bridge, Lisbon

Service

Contact person

S&P responsible site

Portugal

S&P Clever Reinforcement Ibérica, Lda

Rua José Fontana, N°76
Zona Industrial Stª Marta de Corroios
P-2845-408 Amora

Phone 
+351 212 253 371
Fax 
+351 212 252 436
Email 
info@sp-reinforcement.pt

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