Umbrella type frame structures

Claim 1

A FUNNEL-SHAPED POLYGONAL PYRAMID FRAME STRUCTURE HAVING ITS APEX AT THE LOWEST POSITION, SAID STRUCTURE BEING SUPPORTED AT THE APEX BY A FIXED PILLAR HAVING DIAGONAL BEAMS PROJECTING THEREFROM AND EXTENDING TO EACH CORNER OF SAID STRUCTURE AND TRUSS BEAMS HAVING UPPER AND LOWER CHORDS, EACH TRUSS BEAM HAVING TWO UPPER CHORDS AND ONE LOWER CHORD, SAID UPPER CHORDS OF EACH TRUSS BEAM CONNECTING ADJACENT DIAGONAL BEAMS, SAID UPPER CHORDS FORMING A NUMBER OF SPACED, CONCENTRIC, CLOSED LOOPS WITH RESPECTIVE SIDES OF SAID LOOPS SUBSTANTIALLY PARALLEL, SAID LOWER CHORDS BEING SUBSTANTIALLY PARALLEL TO SAID UPPER CHORDS AND SPACED BELOW AND CONNECTED INTERMEDIATE THERETO, SAID LOWER CHORD OF EACH TRUSS BEAM BEING FREE FROM CONNECTION WITH SAID DIAGONAL BEAMS AND FROM CONNECTION WITH ANY MEMBERS OF ADJACENT TRUSS BEAMS, AND LATTICE MEMBERS CONNECTING SAID LOWER CHORD TO BOTH OF SAID UPPER CHORDS IN ZIG-ZAG FASHION INCLUDING CONNECTIONS BETWEEN END PORTIONS OF THE UPPER CHORDS AND RESPECTIVE END PORTIONS OF THE LOWER CHORD SO THAT THE TENSILE FORCE ACTING ON SAID UPPER CHORDS DUE TO SAID FUNNEL STRUCTURE ARE COMPENSATED FOR TO A PREDETERMINED EXTENT WITH COMPRESSIVE FORCES ACTING ON SAID UPPER CHORDS DUE TO VERTICAL DISTRIBUTED LOADS INHERENT TO SAID TRUSS STRUCTURE.