| 摘要 |
<p>A semi-submersible offshore platform comprises a main structure comprising two longitudinal lower side beam structures, two transverse lower side beam structures and four columns, the longitudinal and transverse lower side beam structures are located between the four columns connecting the four columns with each other such that the semi-submersible offshore platform exhibits a frame shaped submersible pontoon having a lower central opening the four columns extends upwards from the frame shaped submersible pontoon. The main structure of the semi-submersible offshore platform comprises two longitudinal upper side beam structures and two transverse upper side beam structures, the longitudinal and transverse upper side beam structures are located between the four columns connecting the four columns with each other such that the semi-submersible offshore platform exhibits a frame shaped deck box structure having an upper central opening for receiving at least one structural module.</p> |
