| 摘要 |
A floor structure beam of steel and concrete comprises, on the one hand, an elongate steel body (10), comprising a lower longitudinally extending steel plate (11) and a plurality of steel bolts (12), welded to the steel plate (11) and extending in an upward direction from said plate and, on the other hand, a longitudinally extending concrete element (17), cast upon the steel plate (11) and wherein the steel body (10) is anchored by means of said bolts (12). The concrete element (17) as a whole is produced by casting concrete upon the steel plate (11) only when the steel body (10) has been placed in the intended position therefor in a floor structure (16). The bolts (12) define free spaces (23) therebetween in which pipes (19) can be placed before the step of casting the concrete element (17). |
