Sam Crossley's Communities Activities

RAM Steel Column: Eurocode to UK NA? Steel Design Stress

Sam Crossley — Wed, 22 Feb 2017 14:55:06 GMT

Are there plans to include this as an option in the Criteria Steel Design Codes?

Currently using the Eurocode the design fy for a 30mm thick flange section is fy=355N/mm2

Under UK NA this would be reduced to 345N/mm2 (e.g. as per BS 5950:2000)

Similarly for other thicknesses c.f.

BS EN 1993-1-1:2005, 3.2.1(1)
UKNA to BS EN 1993-1-1, NA.2.4
EN 10025-2:2004, Table 7 and EN 10210-1, Table A.3 and Table B.3

Ram Steel Column Optimization

Sam Crossley — Wed, 22 Feb 2017 14:22:31 GMT

Having selected trial groups for column design I have found that the output optimises the column the bottom storey but then only uses that trial group for the rest of the column line

e.g. I have trial groups of UC254x254, 305x305UC and UC356x406 as per the ramuk.col file

At Storey 1, the only section that works is in UC356x406., but at upper storeys the column selected is still from UC356x406 (235kg/m) when a UC254x254x89kg/m section would also work.

Is there a setting to change this to select from the lightest trial group at every storey?

or is the solution to use a single customised trial group containing all the sections I wish to consider

RAM SS RAMIS ini file

Sam Crossley — Tue, 12 Apr 2016 15:13:34 GMT

I have a RAMIS.ini file setting for the Wall Cracked Factor

CrackedFactor=0.850

This imports in to the RAM Manager Defaults Utility fine, but when I draw a wall in Modeller, it does not track through from the defaults

How can I correct this?

We are using v14.07