| 摘要 |
<p>The present invention relates to a prefabricated composite beam comprising: a pair of web plates which include an upper flange, which is horizontally bent at on a top portion thereof, and a lower flange, which is horizontally bent at on a bottom portion thereof, and are arranged to be apart from each other to form a side plate of the composite beam; a lower plate which has both ends arranged under the lower flange under the web plates and is arranged to form a bottom plate of the composite beam; coupling bolts which penetrate a plurality of through holes formed at the lower flange and the lower plate, respectively, to couple the lower flange to the upper plate; and coupling nuts corresponding to the coupling bolts. According to the invention, the web plate and the lower plate are provided separately and the composite beam is assembled by using the coupling bolts and the coupling nuts, such that a cross-section and the thickness of the composite beam are changed in various ways. Also, various composite beams can be manufactured by preventing simplicity and uniformity of a member size due to the formation of a conventional composite beam. Furthermore, a manufacturing method is simplified by using bolts and nuts such that a composite beam is optimized for ordering bodies and site conditions.</p> |
