Significant Different output in between BS8110 and EC2 on shear wall design

[ckthang]

Dear all,

I need your help and input on a significant different output in between BS8110 and EC2 design code on shear wall design. Both the designs are using the same material, sections and loading. The output of the shear wall is as below:-

Output of shear wall using BS8110 and wind loading using BS6399

Output of shear wall using EC2 and wind loading using EC1

There is a huge different in between the two codes which far exceed the expectation.

Need help here, thanks in advance.