Research on the feasibility and force control measures in the construction process of long-span continuous rigid frame bridge with low piers

This paper studies a large-span low-pier continuous rigid frame bridge using Midas Civil to model a full-bridge simulation. It assesses two force-adjustment measures during construction: permanent counterweights at side-span cantilever ends and reverse thrusting at mid-span free ends. Monitoring data shows good agreement between measured pier forces/displacements and simulations, proving the feasibility of measures in improving the bridge’s force conditions.