鋼管で構成される塔状トラス構造物の耐力及び変形性能について(曲げ降伏先行型架構の力学的挙動について)

Abstract

This paper refers to deforambility of double-Warren truss tower structures composed ofcircular hollow sections, which are widely used in constructing steel towre structures. In currentdesign practice, the structures are regarded as being collapsed as a whole, when buckling in aprimary compressed member occurrs, strength and deformability of the structures are not takeninto account in the post buckling range. In order to improve the durability of the structure, itis desired to design so that buckling of the primary member does not lead to the collapse of thestructure.A method to improve deformability of the structure by adding bending resistant members isproposed. In order tomake clear stability and deformabilkity of the proposed structures in com-parison with those of ordinary truss structures, an experimental investigation was carried outusing subasseinblages of truss structure.