| 摘要 |
PROBLEM TO BE SOLVED: To provide a joint structure of a steel plate with the reinforcement of reinforced concrete, excellent in constructibility and improved in strength, and a method for constructing the same. SOLUTION: At the joint between a steel underground continuous wall 25 using as a main element a steel member 23 having flanges 24a, 24b and a reinforced concrete floor board 26, internally threaded square steel 28 is placed in the position of the reinforced concrete floor board 26 corresponding to main reinforcement 7, bringing the square steel 28 into contact with the inside of the flange 24a. The square steel 28 and the inside of the double-side flange 24a opposite thereto are connected together by welding using flange-to-flange connecting steel 29 having strength equivalent to that of the main reinforcement. In the front flange 24a with which the square steel 28 is brought into contact, a flange hole 31 through which the threaded end of the reinforcement can be passed is bored in a position corresponding to each main reinforcement 7, and the internally threaded part 32 of the square steel 28 and the main reinforcement 7 are screwed together.
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