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E100: Extreme tendon tensions [Table of Contents] F: Foundations

DNV-OS-C105 Structural Design of TLPS (LRFD method)

[-] Sec.6: Ultimate Limit States (ULS)
[-] E: Tendons
[-] E200: Structural design of tendons

Sec.6
E 200   Structural design of tendons

Sec.6 E
201   The structural design of tendons shall be carried out according to DNV-OS-C101 or API RP 2T with the additional considerations given in this subsection.

Sec.6 E
202   Buckling checks of tendon body/pipes may be performed according to API RP 2T or NORSOK, N-004.

Sec.6 E
203   When deriving maximum stresses in the tendons relevant stress components shall be superimposed on the stresses due to maximum tendon tension, minimum tendon tension or maximum tendon angle, as relevant.

Sec.6 E
204   Such additional stress components may be:
—tendon-bending stresses due to lateral loads and motions of the tendon
—tendon-bending stresses due to flex-element rotational stiffness
—thermal stresses in the tendon due to temperature differences over the cross sections
—hoop stresses due to hydrostatic pressure.


Sec.6 E
205   Composite tendons shall be designed in accordance with DNV-OS-C501 with additional considerations given in this section.
E100: Extreme tendon tensions [Table of Contents] F: Foundations