Abstract
The precast segmental construction is advantageous for rapid erection, high quality of concrete segments, and minimal disturbance to traffic. This paper compares two different tendon layouts of a segmental bridge erected by the span-by-span method. These comparisons include the stress analysis based on the 14-degrees of freedom (DOF) spatial beam model that considers warping, construction speed, and constructability. A simplified two-dimensional (2D) planar model for the reinforcement design of a rib deviator was proposed. The tensile stress region method (TSRM) was applied in the reinforcement design of the diaphragm in this type of bridge; thus the original reinforcement design was optimized, which can be useful in the design for structures of the same type.
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