CoimbraPolis – Sociedade para o Desenvolvimento do Programa Polis em Coimbra, SA
Supervision and Coordination
The Pedro and Inês bridge is an arch bridge with a total length of 274,5m, with a mixed steel/concrete deck.
Founded on piles on the bed of the river Mondego, with a length of 30 m, comprising a central metallic arch with a parabolic directrix and two associated lateral semi-arches on which the mixed steel/concrete deck rests.
The rise of the central arch is 9.362m for a span of 110m, resulting in a rise-to-span ratio of 1/12.
On the left bank, the bridge extends for a further 94,5m, with an intermediate support.
On the right bank, the deck reaches the joining area in a single span of 64m.
Longitudinally the deck runs along two parallel non-corresponding ramps with a constant inclination of 4%. Concordance is achieved through a small parabolic arch in the central area.
To guarantee the stability of the structure in extreme situations, dynamic tuned-mass damping (TMD) devices were installed.