ABSTRACT
ABSTRACT: In segmental bridges an appropriate camber diagram must be defined in construction (reference camber) to ensure the profile of the bridge. In addition, in curved bridges it is required to control the rotations in cross sections of the superstructure. Several factors can to affect the phenomenon as: loads, creep and shrinkage of concrete, relaxation on the tendons, maturity of concrete, the rate of construction and differential temperature. Usually the effect of differential temperature can be neglected by obtaining the reference points levels in the early hours of the day when the difference between the top and the bottom temperatures are at minimum. The elevations of the superstructure in each stage of construction are compared with the corresponding reference camber. This paper presents a rational and practical method to correct the differences between the reference and field elevations in each stage of construction.
