Table 10: Effect of topside mass on lag time.

Collision pointPlatform APlatform B
Topside mass (3600 t)Topside mass (0 t)Topside mass (2400 t)

Mid-span0.17 s0.1 sMid-span0.05 s
1/4 span0.22 s0.09 s

1/8 span0.11 s0.06 sLower end0.05 s
Lower joint 0.06 s0.05 s