![[Table of Contents]](/dwicons/b_toc.gif)
The electronic pdf versions of the documents found through http://www.dnv.com/ are the officially binding versions. Copyright Det Norske Veritas.
|
|
DNV-OS-C105 Structural Design of TLPS (LRFD method) |
This document supersedes DNV-OS-C105, October 2008.Main changes
Sec. 1 Introduction
— In item A104,
acceptance of API RP 2T has been included as an alternative standard,
following the WSD methodology. Sec. 5 Global Performance
— In guidance notes to C108, reference has been made to
API RP 2T for long term response based analysis. Sec. 6 Ultimate Limit States (ULS)
— In guidance notes to B100, 2nd important squeeze/pry
load has been introduced. — In B105, earthquake
analyses criteria have been introduced. — C200 Air Gap, has been
aligned with the Air Gap requirement as per the API RP 2T requirement. — Scantling and Weld connection have been moved from original
location in F to D. — In E Tendons, a new
item E108 has been added for minimum Tendon Tension to align with
API RP2T requirements. — In E200, reference
to API RP2T has been included for better guidance in the design
and acceptance as well as safety factors for Tendon Pipes. Sec. 7 Fatigue Limit States (FLS)
— A new item A106 has
been introduced for single fatigue event for structures (near tropical
environment) susceptible to low cyclic / high stress loading
for rare extreme events (hurricane) of extended duration. Sec. 8 Accidental Limit States
(ALS)
— A new item C104 has
been introduced with Minimum Tendon tension requirement for ALS
condition. App. A Certification of Tendon
System
— In E300 Bottom
Tendon Interface (BTI): added that no disengagement is allowed even
during negative tendon tension and the provision of a mechanical
latch to prevent disengagement.
|
|