| 摘要 |
PROBLEM TO BE SOLVED: To improve integration effects of a precast concrete floor slab laid on a steel beam and the steel beam by overcoming disadvantages in the method of forming an opening in a part of the floor slab or in the method of integrating a shear force transmission member to the floor slab beforehand, by providing a junction structure of the steel beam and the concrete floor slab for supporting an intermediate part of the floor slab with the steel beam by joining the floor slab to the steel beam in such a manner that opposing floor slabs can be prevented from being separated, while opposing end portions with each other on the steel beam.SOLUTION: On a flange 7 integrated on a web 5 or a horizontal rib 6 which is a part of a steel beam 4 and expanded to both sides of the web 5 or the horizontal rib 6 in a width direction, a connection plate 8 is projected in parallel with the web 5 or the horizontal rib 6. On the flange 7, floor slabs 1 including protrusions 2 continued in a circumferential direction around the back side are placed while opposing each other with the connection plate 8 interposed therebetween. Between the protrusions 2, 2 of the opposing floor slabs 1, 1, a bolt 9 is inserted through the connection plate 8, and the opposing floor slabs 1, 1 are joined to the web 5 or the horizontal rib 6 via the connection plate 8. |
