Strain Characteristics Of Restrained Tie Rods

Before reaching the ultimate load, the strain of the restraining rods is small, the restraining rods in the first row and the third row are basically in the elastic working stage, and the restraining effect of the rods on the steel pipe wall is relatively small. The strain develops rapidly, yields quickly, the curve bends, and there is a long horizontal section, indicating that the third and third rows of tie rods have obvious restraint on the steel pipe wall. Since the first row of tie rods of the specimen is laterally constrained by the loading plate, its strain The development is slow until the specimen fails completely and the first row of tie rods still do not reach yield.