JOINT STRUCTURE OF STEEL MATERIAL USING IRON-BASE SHAPE MEMORY ALLOY

摘要

PROBLEM TO BE SOLVED: To provide a joint structure of steel materials, reducing the time and trouble for execution of work and the number of parts as compared with bolt joint, not requiring the skilled technique and enabling all-weather work as compared with welding joint, and generally reducing the cost.;SOLUTION: Two H-shape steels 1 are disposed with the axial ends abutted on each other, and a joint member 2 formed of an iron-base shape memory alloy and having a rectangular section is disposed extending between both sides of the H-shape steel 1 to cover the butt part 3. The joint member 2 constrains the butt part 3 from the outside by recovery of the memory shape due to heating, and the obtained constraint force is substituted with the resisting force in the axial direction of material by friction with the H-shape steel 1 to transmit load between the H-shapes 1.;COPYRIGHT: (C)2005,JPO&NCIPI