Validation of Experimental and Analytical Study Work
In this chapter, the elastic behaviour and performance of precast segmental box girder (SBG) subjected to static load test is discussed based on the experimental results and finite element method (FEM). By using finite element analysis (FEA), stress and strain could be plotted in (a) graphs to produce stress-strain relationship. Based on the deflection formula, result from the FEA was compared with the calculation and the percentage of error was determined. Besides that, the comparison between the deflection behaviour of precast SBG with a variety of transversal slope or (so-called) crossfall gradient is also discussed in this chapter. A single span of precast SBG bridge model with constant span length, depth, thickness of top and bottom flange, width of top and bottom flange, thickness of web and few variables are tested for comparison of results. The variables are (a): Transversal slope (0, 2.0, 2.5 and 3.0%), and (b) Three types of load cases at HA-UDL (Load Case 1), HB 30 (Load Case 2) and HA-KEL (Load Case 3).
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