engleski

A Slipway Structure for River Ship Repair

A slipway structure for ship repair discussed in this paper has been designed and constructed on the River Sava near the town of Sisak in Croatia. The structure consists of reinforced concrete bored piles and girders. In the river, girders are supported by a trapezoidal concrete block of 16x2 m placed in the river bed. From this block up, girders of 2x2 m in cross-section are inclined from the river to a certain bank height after which they are horizontal. For the predicted loads foundation soil was too weak, and for this reason each girder rests on 9 piles from 3 to 12 m in length and 1.0 m in diameter. The joint between the girder and piles is rigid, and thus they make a frame element. There are 11 girders, whose inclined and horizontal parts have a length of 41 m and 26 m respectively. The whole structure covers an area of 82x86 m. Ships are to be supported by trolleys travelling on an inclined rail system. The structure extends underwater for a sufficient distance to enable the ships to float on and off. The movement of trolleys together with a ship is controlled by hauling winches that are situated at the upper end of the slipway.

slipway; reinforced concrete; piles and girders; foundation soil; ships on inclined rail system

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