Through compositing with positive moment part(center of span) with composed preflex structure and negative moment part(end of span or pier) which is structured with steel frame and steel bar, SPC makes girder depth lower, bridge span longer, convenient for maintenance without supporting posts. It strengthen the strength of composed preflex structure and complete the weakness of RC Rahmen bridge.
Through compositing with positive moment part(center of span) with composed preflex structure and negative moment part(end of span or pier) which is structured with steel frame and steel bar, SPC makes girder depth lower, bridge span longer, convenient for maintenance without supporting posts. It strengthen the strength of composed preflex structure and complete the weakness of RC Rahmen bridge.