MANUFACTURING METHOD FOR COMPOSITE GIRDER USING PRESTRESSING

摘要

PURPOSE: A manufacturing method of a composite girder using a permanent load is provided to improve the structural stability of a composite girder by reducing residual tensile strength on the bottom of a steel girder. CONSTITUTION: A manufacturing method of a composite girder using a permanent load is as follows. Both ends of a steel girder(10) are placed on holders(20). Tensile strength is generated on the top of the steel girder, and compressive strength is generated on the bottom of the steel girder by loading a permanent load(PS) to the steel girder. A form is installed on the bottom of the steel girder, and concrete(12) is placed thereon.