The Earthquake Engineering Online Archive

Three-Dimensional Stochastic Response To Offshore Towers To Wave Action

Berge, Bent; Penzien, Joseph

UCB/SESM-1975/10, Dept. of Civil Engineering, University of California, Berkeley, 1975-10, 155 pages (500/C23/75/10)

Develops a theory to calculate the dynamic response of offshore towers to random wave forces. Two computer programs, one for towers symmetric about two vertical planes and one for towers symmetric about one vertical plane, were written. Numerical results for seven deep water towers having heights of 475, 675, 875 and 1075 ft are presented. These results include standard deviations and mean peak values for displacements, rotations, shear forces and twisting and bending moments. They show that the directional spread of the waves normally has little effect on the rotational response, and that the effect of the rotational response on the overall structural response is small.

Available online: http://nisee.berkeley.edu/documents/SEMM/SEMM-75-10.pdf (52 MB)