Cross Harbour, Reino Unido
In 2008 Cenor carried out the verification of existing structures (from 1986) together with the development of the design project of new structures in the Crossharbour, London underground station (West line).
The existing structures belonged essentially to a viaduct comprising spans between 15m and 18m, with a deck consisting of a composite cross-section of 9,5m wide and supported by both piers and piles of reinforced concrete. The railway platform and the access ladders, also characterized by composite structures, were supported by the transverse steel girders in the piers alignments.
The widening of the railway platform was expected due to the increase of the length of the trains. For that purpose, the amendment/strengthening of the viaduct and the execution of new piers and foundations were necessary.
Cenor’s involvement focused on two main goals: to audit / complement a former assessment and to propose improving /strengthening measures whether necessary.
All the calculations were carried out in accordance with the procedures, the recommendations and the limit states of the British standards.