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    • 7. 发明专利
    • STRING BEAM ROOF FRAME
    • JPH07324420A
    • 1995-12-12
    • JP11696994
    • 1994-05-30
    • SHIMIZU CONSTRUCTION CO LTD
    • SADAHIRO OSAMUKURIHARA KAZUSHIGEOOUCHI SHIGETERUTANIGUCHI HISANORI
    • E04B7/02E04B7/14
    • PURPOSE:To make it possible to construct a roof having a big opening in the central part thereof economically without having any impediment by building a string beam roof frame connecting trussed beams radially to oval compression rings to a lower frame. CONSTITUTION:A string beam roof frame 10 consisting of steel frames or pipe framework is constituted of oval compression rings 21 tensioning a rigidity maintaining cable 21, a plurality of trussed beams 23 having a circular shape from the side view connected radially to the outside ends of the compression rings 21 and tension rings 24 connected to the outside ends of the trussed beams 23. The lower parts of the outside ends of a small number of trussed beams 23 are pulled out in the directions of the compression rings 21 with a string beam cable 25, and beams having the same concentricity as the compression rings 21 or braces are provided between the trussed beams 23. The string beam roof frame 10 is connected to the upper ends of roof bearing lower frames 12 with pins 30, a roofing material is stuck on the upper surface, and waterproof finishing work is applied thereon. The string beam roof frame 10 is equipped with a movable mechanism, and a movable roof 11 covering an opening section H is driven.