| 摘要 |
A steel girder is provided to reduce the width of an upper flange and the used amount of a steel member without installing a shear connecting member. A steel girder(200) is composed of an upper flange, a lower flange, and a middle unit connecting the upper and lower flanges. The upper flange includes a bent unit, and is formed at a sheet plate shape by cold-processing. Both ends of the bent unit are bent upwardly or downwardly. Spacers(121) are formed like a groove, and support reinforcing bars. |
