JavaScript must be enabled in order to use this site.Please enable JavaScript in your browser and refresh the page. D5.B.7.6 Clause 6.3.2.3(2) – Modification factor, f, for LTB checks STAAD.Pro uses the value of the modification factor f = 1.0 as given in the Finnish NA. Parent topic: D5.B.7 Finnish National Annex to EC3