Shelter for protection against wind and blast events

A shelter for protecting occupants from debris and other effects of high velocity winds and explosive blasts, the shelter comprising:

• a first generally rectangular steel frame structure comprising a first lower side hollow structural section (HSS) steel tube beam, a second lower side HSS steel tube beam, a first lower end HSS steel tube beam and a second lower end HSS steel tube beam, the first and second lower end HSS steel tube beams positioned perpendicularly to the first and second lower side HSS steel tube beams and secured to the lower side HSS steel tube beams, the intersections of the lower end HSS steel tube beams with the lower side HSS steel tube beams forming corners of the first steel frame structure;
• a plurality of floor joists extending between the lower side HSS steel tube beams, each joist having an upper surface and a lower surface;
• and
• a floor comprising a plurality of floor panels secured to the upper surfaces of the floor joists, each floor panel comprising a non-combustible board laminated to a metallic sheet, each floor panel positioned on the floor joists with the respective metallic sheet adjacent to upper surfaces of the floor joists and with the non-combustible board facing upward away from the floor joists;
• a plurality of vertical columns, each column having a lower end and an upper end, at least one column of the plurality of columns positioned at each corner of the first steel frame structure with the lower end of the column secured to the first steel frame structure;
• a roof structure, comprising:
• a second generally rectangular steel frame structure comprising a first upper side HSS steel tube beam, a second upper side HSS steel tube beam, a first upper end HSS steel tube beam and a second upper end HSS steel tube beam, the first and second upper end HSS steel tube beams positioned perpendicularly to the first and second upper side HSS steel tube beams, the intersections of the upper end HSS steel tube beams with the upper side HSS steel tube beams forming corners of the second steel frame structure, the corners of the second steel frame structure positioned onto the upper ends of the columns and secured to the upper ends of the columns;
• a plurality of roof joists extending between the first and second upper side HSS steel tube beams, each roof joist having an upper surface and a lower surface;
• a roof comprising a plurality of roof panels secured to the upper surfaces of the roof joists, each roof panel comprising a non-combustible board laminated to a metallic sheet, each roof panel positioned on the roof joists with the respective metallic sheet adjacent to upper surfaces of the roof joists and with the non-combustible board facing upward away from the roof joists;
• and
• a first side wall formed between the first lower side HSS steel tube beam and the first upper side HSS steel tube beam, a second side wall formed between the second lower side HSS steel tube beam and the second upper side HSS steel tube beam, a first end wall formed between the first lower end HSS steel tube beam and the first upper end HSS steel tube beam, and a second end wall formed between the second lower end HSS steel tube beam and the second upper end HSS steel tube beam, each of the first and second side walls and the first and second end walls comprising:
• a respective plurality of wall studs extending vertically from the respective lower HSS steel tube beam to the respective upper HSS steel tube beam, each wall stud having an inner surface and an outer surface;
• and
• a respective plurality of outer wall panels positioned on the outer surfaces of the respective wall studs, each outer wall panel comprising a non-combustible board laminated to a metallic sheet, each outer wall panel positioned on the wall studs with the respective metallic sheet adjacent to outer surfaces of the wall studs and with the non-combustible board facing outward away from the wall studs,
• wherein:
• each lower side HSS steel tube beam comprises:
• a hollow structural section steel tube having a lower surface, an upper surface and a side surface;
• a lower stud mounting track secured to the upper surface of the steel tube;
• and
• a floor joist mounting track secured to the side surface of the steel tube;
• and
• each upper side HSS steel tube beam comprises:
• a hollow structural section steel tube having a lower surface, an upper surface and a side surface;
• an upper stud mounting track secured to the lower surface of the steel tube;
• a roof joist mounting track secured to the side surface of the steel tube;
• and
• a roof panel support frame secured to the upper surface of the steel tube.