e-mosty December 2017 MSS and Formwork Travellers | Page 14
2.5.1.1 Final design of the bridge
2.5.1 Engano Viaduct - MSS for 72 m span in one
casting stage
After knowing that the MSS model AP-2005 could
build bridges with 63 m concreting span, the
possibility of using 70 m deck spans was investigated,
which would reduce the number of bridge piers and
respective submerged foundations from 14 to 10 as
well as the construction time.
The original design of Engano viaduc t in Galicia (2010)
considered 13 spans of 55 m and two end spans of
37.5 m, where most of the spans would be built over
the water and 14 piers had submerged foundations.
Main contractor: COPASA S.A.
The final layout has now 9 spans with 70 m and two
end spans, one with 41 m and other with 50 m.
E-2
P-13
P-14
P-12
P-11
P-10
P-9
P-8
P-7
P-5
P-6
P-3
P-4
P-2
P-1
E-1
ALZADO
PLANTA
PMVE (~5.80)
PMVE (~5.80)
Mb
E-2
P-14
P-1
Er
P-2
P-13
P-3
P-12
P-4
P-11
P-5
P-10
P-9
P-8
P-7
P-6
2.65
Aserr
adoir
o
3.87 3.86
1481
Figure 14: Engano Viaduct initial layout
Figure 15: Engano Viaduct final layout
4/2017