Title: Lateral Load Effective Width of Flat Plates with Drop Panels

Author(s): Peter Darvall and Fred Allen

Publication: Journal Proceedings

Volume: 81

Issue: 6

Appears on pages(s): 613-617

Keywords: deflection; finite element method; flat concrete plates; Fourier se- ries; frames; lateral pressure; plates (structural members); stiffness; structural analysis.

DOI: 10.14359/10708

Date: 11/1/1984

Abstract:
Previous values for effective width coefficients of flat plate structures are compared to those obtained using a finite element model, suggesting a modification for the rigid column model in the series solutions. A table of modified effective width coefficients is presented. effective width coefficients for flat plates with drop panels of two sizes and various thicknesses are given in charts. They allow rapid quantification of the considerable stiffening effect of drop panels.