프리플렉스 보를 이용한 골조의 내력 및 변형특성에 관한 실험적 연구 ( An Experimental Study on the Strength and Deformation Characteristic of Frame Used Preflex Beam )

A preflex beam is a type of concrete encased steel beam of which prestressing has been introduced in the lower flange concrete. This preflex beam has merits such as large flexural stiffness with smaller beam depth and low maintenance costs. Recently, n this merits, it has been demanded to apply the preflex beam to building structure of large span such as bowling center and gymnasium. As a preceding reserch, the strength and deformation caracteristics of preflex beam are discussed through positive and negative bending experiments of preflex beam as a strengh test. This paper is an experimental study ont eh rahmen frame which is used preplex composite bxam