DAF - Spreader Bar
DAF - Spreader Bar
(OP)
Hi All,
As per DNV Rules for Lifting Appliance, what is the DAF we need to use for a spreader bar of SWL 400 Tonnes? Also, any idea on what GL mentions for this? Thanks in advance.
HD
As per DNV Rules for Lifting Appliance, what is the DAF we need to use for a spreader bar of SWL 400 Tonnes? Also, any idea on what GL mentions for this? Thanks in advance.
HD






RE: DAF - Spreader Bar
Mike McCann
MMC Engineering
RE: DAF - Spreader Bar
BA
RE: DAF - Spreader Bar
RE: DAF - Spreader Bar
You left the “T” off the end of “DAF.” If you want any meaningful help, we shouldn’t have to waste our time looking up and guessing at the meaning of acronyms, however smart their usage may make you think you look. And, some of us won’t have copies of the DNV standards either, but might still be helpful if you define your problem better. Show a sketch of the spreader beam and its fittings, and attachments (copies) of the code sections and formulas you are having trouble with, so we can see what you’re dealing with. The various codes and stds. may vary a little, but the basic engineering mechanics don’t change, and some of us have likely seen essentially the same problem under another code.
RE: DAF - Spreader Bar
GL = Germanischer Lloyd, German maritime classification society
DAF = Dynamic Amplification Factor, which is a function of load and sea condition. Typically table DAFs are used for
different load groups and inshore and offshore lift in air in minor sea states, typically Hs <2-2.5m
DNV and GL have joined societies; http://www.dnvgl.com/
RE: DAF - Spreader Bar
See GL doc attached