BIM methodology for design of a pedestrian bridge in Piedicavallo (Biella), Wood as main construction material.

The objective of this Thesis is to define a working method for the design and construction of a pedestrian bridge (Hiking) in Piedicavallo, Biella. This bridge will be constructed in a remote area with difficult terrestrial access to site, using as main construction material wood. The challenge is the construction of this bridge in a non-conventional way, as it will be used helicopter as the main transportation mean, for the optimization of resources and construction of bridges, it will be proposed the design and construction of the bridge. For the bridge construction it will be performed all the design phases of the bridge for the real case scenario, but the focus of the work project will be in the construction management of the bridge, such as the transportation of the materials to site, times of construction and a complete cost analysis. For this planning phase of the bridge construction, the works were performed in the following way: -??Architectural design (Wood was used as part of the analysis – Truss structure chosen). -??Structural Analysis (Check the architectural design is OK in terms of a global structural analysis) -??New architectural analysis with corrected sections of elements -??Local design of structure connections -??Local structural Analysis of structure connections -??Quantities takeoff of the pedestrian bridge structure -??Cost analysis based on quantities takeoff (Materials and tasks to do) -??Times analysis – Schedule (Based in tasks durations, dependencies, and resources). -??Simulation of execution – Final planning of the execution phase. Additional to the pedestrian bridge construction, given the site conditions, the possibility of an increase in the water level of the Cervo stream that could overcome the bridge (Long realistic Return Period of the stream). A synchronous hydraulic jacking system was proposed for lifting the superstructure, the cost analysis of this possible solution has been included, but a final jacking system proposal must depend on a hydrological study of this section of the Cervo stream.