A major precast concrete segmental bridge located in glenwood canyon, colorado, was mandated by the federal highway administration and the colorado department of highways to have the capability of full depth deck replacement. a simple procedure for replacement of the top slab of the box girder was developed and integrated into the final design of the structure. although erected by the balanced cantilever method, no compromises were required of the design and replacement capability was satisfied with little initial cost impact to the construction of the viaduct. the deck replacement procedure, the special design features and the analysis method and results are presented. it is concluded that full depth deck replacement capability is economically feasible for a precast segmental bridge, ensuring the owner of a durable concrete structure for many years of service. this paper appears in transportation research record no. 1290, third bridge engineering conference, march 10-13, 1991, denver, colorado, volume 1.
Samenvatting