## Dpc

m,mean m,min

Mean/min measured resistance-= 4374 kN and-= 4271 kN

Characteristic resistance is Rck = min

RR m,mean m,min

Design resistance

Partial factors from Sets

Design resistance is Rcd

(R1A

vR4 j

v1.5 j v2847 j kN

Verification of compression resistance

Degree of utilization

Design is unacceptable if the degree of utilization is > 100%

Degree of utilization

Design is unacceptable if the degree of utilization is > 100%

Design Approach 2

### Ignore the self-weight of pile

Characteristic total action Fck = Fgk + FQk = 2200 kN Partial factors from set A1: yg = 1.35 and yq = 1.5 Design total action is Fcd = yg Fgk + Yq FQk = 3075 kN

Characteristic resistance

Characteristic resistance is unchanged: Rck = 4271 kN Design resistance

Partial factors from sets R2: Yt = 1.1

Design resistance is Rcd =-= 3882 kN

Verification of compression resistance Degree of utilization Design is unacceptable if the degree of utilization is > 100%

Design Approach 3 Is not suitable for pile design

### Design to UK National Annex to BS EN 1997-1

The UK National Annex changes both the resistance factors and the correlation factors that must be used to verify pile resistance. All other factors remain unchanged from their EN values.

### Characteristic resistance

Correlation factor on mean measured resistance is Ç1 = 1.35 Correlation factor on minimum measured resistance is Ç2 = 1.08 For a pile group that can transfer load from weak to strong piles

## Post a comment