INTRODUCING METHOD FOR TENSION IN OPENING AND CLOSING TYPE MEMBRANE STRUCTURE

摘要

PURPOSE:To pull up a lifting material, and to introduce tension to a membrane material by disposing one filament material continuing along a suspension material from which a lifting material is hung, connecting the end section of the filament material to a tension grip and winding the filament material by the tension grip. CONSTITUTION:One filament materials 30 continuing along suspension cables 10 hung from strut cables 11 are arranged. First pulleys 33 are disposed rotatably at the upper ends of the cables 11 and pairs of second pulleys 37 to sections just above the cables 11. The filament materials 30 are engaged rotatably through first pulleys 36 and the second pulleys 37 from ones of the second pulleys 37 and extended successively, and end sections are connected to the tension grips of the cables 10. The filament materials 30 are wound in the direction of the arrow by the tension grips and the cables 10 are given stretching force, and tension is introduced to the membrane materials 12. Accordingly, tension introducing work to the membrane materials can be conducted efficiently in a short time.