Table 3. Parameters employed in each...

Table 3.

Parameters employed in each appraisal approach

Appraisal approach	Permanent floor load: kN/m²	Imposed floor load: kN/m²^a	Partial factor for permanent loads	Partial factor for imposed loads	Permanent load reduction factor	Imposed load combination factor	Target UR	Material strength: MPa
EC: Optimal compliance	3.7–3.9^b	3.3^d	1.35	1.50^e	0.925^e	0.7^e	1.0	355^f
EC: Using experienced imposed loads	3.7–3.9^b	0.63^g	1.35^e	1.50^e	0.925^e	0.7^e	1.0	355^f
EC: Using residential imposed loads	3.7–3.9^b	2.0^d	1.35^e	1.50^e	0.925^e	0.7^e	1.0	355^f
EC: With average material strength	3.7–3.9^b	3.3^d	1.35^e	1.50^e	0.925^e	0.7^e	1.0	402ⁱ
EC: With reduced partial factor for permanent loads (γ)	3.7–3.9^b	3.3^d	1.10^h	1.50^e	— ^c	— ^c	1.0	355^f

Appraisal approach	Permanent floor load: kN/m²	Imposed floor load: kN/m²^a	Partial factor for permanent loads	Partial factor for imposed loads	Permanent load reduction factor	Imposed load combination factor	Target UR	Material strength: MPa
EC: Optimal compliance	3.7–3.9^b	3.3^d	1.35	1.50^e	0.925^e	0.7^e	1.0	355^f
EC: Using experienced imposed loads	3.7–3.9^b	0.63^g	1.35^e	1.50^e	0.925^e	0.7^e	1.0	355^f
EC: Using residential imposed loads	3.7–3.9^b	2.0^d	1.35^e	1.50^e	0.925^e	0.7^e	1.0	355^f
EC: With average material strength	3.7–3.9^b	3.3^d	1.35^e	1.50^e	0.925^e	0.7^e	1.0	402ⁱ
EC: With reduced partial factor for permanent loads (γ)	3.7–3.9^b	3.3^d	1.10^h	1.50^e	— ^c	— ^c	1.0	355^f

Additional imposed load of 0.6 kN/m² (BSI, 2008) is assumed to act at roof level

Comprising: steel self-weight (0.5 kN/m² per storey below seven storeys, 0.7 kN/m² per storey seven storeys and above) (SCI, 2008)

No load reduction/combination factors applied due to their omission when deriving reduced partial factors (Kala, 2007)

Comprising 2.5 kN/m² plus 0.8 kN/m² for moveable partitions (BSI, 2002)

BSI (2011)

BSI (2005)

Orr and Drewniok (2018)

Kala (2007)

ⁱ

Melcher et al. (2004)

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