Abstract
Due to various designs in racks and semicircle tubes, dedicated jigs are used in the manufacturing of most jack-up legs, which decreases the productivity. In this research, a new flexible jig system with jig and support column is designed to meet different production requirements of many jack-up platforms. Firstly, two kinds of adjustment bolts i.e. position bolts and angle bolts are designed for accurate positioning and attitude adjusting. Moreover, considering supporting height differences of the legs, an integrated mode of standard and specific components is adopted in construction of the support columns. By using of the new flexible jig, productivity of many jack-up platforms construction is greatly improved.
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