Deck Composite Slab, and Concrete Thickening Method for Deck Composite Slab
(10) JP2023108774
(22) 26.01.2022
(43) 07.08.2023
(57) To provide a deck composite slab which can be provided as a floor slab that requires having a performance of resisting fire for more than 2 hours in performance-based fireproof-design buildings, and its concrete thickening method.
Solution: A concrete 304 has a thickness greater than 100 mm on top of a crest part 3a of a deck plate 3. Thereby, a deck composite slab 300 can improve fireproof performance through thickening of thickness of the concrete 304 so as to meet a required performance of resisting fire for more than 2 hours in a performance-based fireproof-design building. As a result, for example, additionally placing the concrete on an existing slab enables minor work to cope with a tenant change to applications with a required time of resisting fire for more than 2 hours.
(71) Nippon Steel Metal Products Co., Ltd., JP
