Reinforced building structure

Claim 1

A SHELTER CONSTRUCTION COMPRISING OUTER, INTERMEDIATE AND INNER GENERALLY HEMISPHERICAL WALLS DISPOSED CONCENTRICALLY ONE WITHIN THE OTHER AND SPACED FROM EACH OTHER, EACH OF SAID INTERMEDIATE AND INNER WALLS COMPRISING A PLURALITY OF TRIANGULAR BOX-LIKE MEMBERS, EACH OF SAID MEMBERS INCLUDING A TRIANGULAR PLATE, A TRIANGULAR FRAME FORMED OF ANGLE BARS JOINED AT THEIR ENDS, SAID PLATE BEING SECURED TO COPLANAR SIDES OF SAID BARS WITH OTHER SIDES OF SAID BARS DEFINING SIDE WALLS OF SAID MEMBER, SAID MEMBERS BEING DISPOSED IN A GENERALLY HEMISPHERICAL ARRAY, CLAMPING ASSEMBLIES JOINING THE SEVERAL MEMBERS TOGETHER, CABLES JOINING THE CLAMPING ASSEMBLIES IN THE INTERMEDIATE WALL TO RESPECTIVE FLEXIBLE CLAMPING ASSEMBILIES IN THE INNER WALL, A THIRD HEMISPHERICAL WALL MADE OF SHEET MATERIAL CONCENTRICALLY SURROUNDING THE FIRST WALL, AND SPACER MEANS SECURING THE FIRST AND