Abstract:In the construction control of Chongqi Yangtze River 50 m span bridge, finite element model was built based on
construction control of continuous beam in short-line method. By finite element analysis, a sensitivity analysis of five
parameters, which have effect on bridge line,was accomplished, and then got effect of bridge line and structure stress when
each structural parameters changed,in order to find the most sensitivity parameter which has a great effect on bridge line in
manufacture stage and installation stage. At last the precision of precast beams can be ulteriorly improved in manufacture stage
and installation stage.
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