Design development of multi-span concrete viaduct

Stock photo

England, United Kingdom

The construction of a multi-span highway viaduct ran into delay and cost increase. This led to a dispute between the contractor and civil and structural engineer, over the buildability of tender proposals, design development and construction sequence.

For the purposes of this matter, I investigated the technical aspects of these issues, examined the post-tender design development and the extent of any shifts in scope. This work included investigation of issues relating to the design of precast and prestressed concrete beams, the design of diaphragms, deck geometry, increases in concrete and steel reinforcement quantities, formwork, buildability, construction sequence and temporary works.

The findings of this investigation were provided to the solicitors acting for the structural engineer, informing their client’s position and defence strategy.