To provide a floor panel which suppresses a warp of a panel body part with mesh-like reinforcements embedded therein even when arranging bar-like reinforcements in two-by-two matrix shape.
A raised part 16 is projected from a lower face 15a of the panel body part 15 with expanded metal 12 embedded, so as to surround a peripheral edge part, and center longitudinal reinforcements 14a and center horizontal reinforcements 14b are arranged between the mutual center parts of pairs of outer peripheral longitudinal reinforcements 13a and outer peripheral horizontal reinforcements 13b embedded in the raised part 16. Since the center longitudinal reinforcements 14a and center horizontal reinforcements 14b are embedded in higher positions than the outer peripheral longitudinal reinforcements 13a and outer peripheral horizontal reinforcements 13b so as to be located within the panel body part 15, the contraction amount of concrete 11 existing between the center longitudinal reinforcements 14a and center horizontal reinforcements 14b and the expanded metal 12, is reduced to suppress the warp of the floor panel 10.
Nakamura Tomoyuki
Masakazu Ito
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