The Earthquake Engineering Online Archive

Finite Strip Analysis of Structures with Arbitary Boundary Conditions

Van Der Walt, Petrus P.

UCB/SEMM-1989/16, Dept. of Civil Engineering, University of California, Berkeley, 1989-08, 301 pages (500/C23/89/16)

Longitudinal loads and restraints are modelled by expanding the harmonic series of the classical method to include a longitudinal rigid body motion of the strips as well as a uniform longitudinal displacement of each joint. When logintudinal loads are not in equilibrium on each joint, it is shown that the classical finite strip method cannot be used. In particular, care must be exercised for some unsymmetrical prestressing tendons. Arbitrary end support conditions are included in this extended classical finite strip method by means of a Lagrange multiplier procedure according to which boundary conditions are stated and added into the potential energy functional.

Available online: http://nisee.berkeley.edu/documents/SEMM/SEMM-89-16.pdf (21 MB)