The SPM consists of a mooring tower fixed at seabed and a soft yoke assembly attached to FPSO to the turntable on the tower and allows the yoke and FPSO to weathervane around the tower under 100 year extreme environment conditi.

In order to solve the problem of rigid anchor connection when using catenary cable element, based on the tangent stiffness matrix of two-node catenary cable element deduced with catenary equations, a more exact expression of tangent stiffness matrix is derived for two-node catenary cable element with arbitrary rigid arms.

Not only the force feature of frame-tube structure with rigid arms under earthquake load and wind load, but also the measures which should be taken are discussed.

The optimum location, rational number of strengthened stories and suitable stiffness of outriggers are put forward.

The Seismic Response Analysis of the Steel Frame-Concrete Core Structure with Outriggers;

The simplified plane models used by many researchers to study the effects of outriggers used in frame-tube structures to increase the rigidity of buildings generate much errous in analying the effect of outriggers.

Steel frame-core wall structure with outriggers was analyzed through the finite element analysis,and the mutation of the internal force of the structure and the comparison of different arrangement of structure were studied.

The comparison of the non-nodal connection method and the steel-arm method;