Patent ID: 8516776

Claim:
A fire-prevention structure for buildings, comprising: a first fire-prevention district, having at least a steel-structured story, further including a plurality of first steel columns and a plurality of first steel beams; the first steel column being formed as a hollow rectangular column and having an upper end opening; the first steel beam being connected to a lateral side of the respective first steel column; a fire-prevention floor slab, constructed on top of the first steel beams and protruded partly into the end opening of the first steel column; and a second fire-prevention district having at least a steel-structured story, including a plurality of second steel columns and a plurality of second steel beams, having a lower end portion to extrude downward an engagement plate and an engagement column; the engagement plate being fixed to the fire-prevention floor slab; the engagement column, having a plurality of peripheral shear connectors, being protruded downward into the end opening of the first steel column and being embraced by the fire-prevention floor slab; said engagement plate and said fire-prevention floor slab are connected with a plurality of anchor bolts; said fire-prevention floor slab includes a corrugated steel roof plate and a fire-resistant material, the corrugated steel roof plate being engaged with said first steel column, the fire-resistant material being layered on the corrugated steel roof plate and also partly filled into said end opening of said first steel column; and the first fire-prevention district and the second fire-prevention district are not directly engaged, but connected to each other through the fire-prevention floor slab in between.