![]() The second approach is through performing real sophisticated step-by-step time-dependent analysis using a specialized software. ![]() Time-dependent moments retrieved from these classical methods always reside in an intermediate state falling between the results from “two” time- independent analysis cases, namely, (a) sequentially adding all partial permanent loads and prestressing pertaining to various construction steps using the part-bridge structural system corresponding to each step, and (b) assuming all loads and prestressing forces to be applied at-once to the final completed bridge. ![]() The first is a family of varied simplified methods typically known to practicing designers and with pre-consensus on their reliability and effectiveness. In essence, despite some apparent diversity, there are basically two key conventional approaches to compute the design time-dependent moment accounting for creep effects for this type of bridges. Assessing available numerical techniques adopted to determine the design time-dependent moment for prestressed concrete segmental bridges constructed by the balanced cantilever method is of utmost importance to the bridge design community.
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