THROUGH BRIDGE CONSTRUCTION METHOD BY SIDE BEAM AND SLAB BY BOX STRUCTURE WITHOUT LATERAL PRESTRESSING

摘要

PURPOSE: A through bridge having a street corner portion and a formation method of a street corner portion on a through bridge are provided to construct a street corner portion on a through bridge easily and to extend usability by having no influence on the structural performance of a through bridge. CONSTITUTION: A through bridge having a street corner portion contains: two side beams with variable cross section(110) formed to make the sectional height of two ends coincide with the sectional height of a slab and to increase the cross sectional height gradually from two ends to the center; a slab(120) installed to be extended longitudinally between the inner sides of two side beams with variable cross section at the same sectional height as the sectional height of a street corner portion; and a street corner portion(130) unified to the top of the outside of two side beams with variable cross section and formed to have the sectional height coincided with the top of two ends of two side beams with variable cross section.