| 摘要 |
PROBLEM TO BE SOLVED: To provide a floating crane capable of sufficiently exhibiting suspension capacity in a work area for actually performing crane work, with a simple structure.SOLUTION: This floating crane 1 has a first form capable of push-sailing by a pusher boat 40 by integrating first and second barges 20 and 30 by connecting the second barges 20 and 30 for mounting a support removed from a main beam to the bow of the first barge 10 for mounting the main beam of the crane, and a second form capable of the crane work by integrating the first and second barges 20 and 30 by installing the support on the main beam in a state of respectively connecting the second barges 20 and 30 to left-right boards of the first barge 10. |
