http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
유영찬(Yeong Chan Yoo),안형준(Hyung Joon Aan),최창식(Chang Sik Choi),오영석(Young Suk Oh),이리형(Li Hyung Lee),문태섭(Tae Sup Moon) 한국강구조학회 1993 韓國鋼構造學會誌 Vol.5 No.2
A preflex beam is a type of concrete encased steel beam of which prestressing has been introduced in the lower flange concrete. To build up preflex beam, preflexion load are first applied to the steel beam, and secondly, while keeping the steel beam bent, the lower flange concrete is cast. Then, releasing the applied loads after the concrete hardened, the prestress is introduced into the concrete. This preflex beam has merits such as large flexural stiffness with smaller beam depth and low maintenance costs. Recently, in this merits, it has been demanded to apply the preflex beam to building structure of large span such as bowling center and gymnasium. In this paper, the strength and deformation characteristics of preflex beam are discussed through positive and negative bending experiments of preflex beam as a strength test.