Abstract

The effective width and equivalent frame analysis methods are applied to a flat plate test specimen. The theoretical moment distribution and lateral drift show poor agreement with the test specimen results. A modified two-beam analytical model is proposed. This model allows for more appropriate modeling of the slab cracking in negative and positive bending regions. The modified model is able to reproduce both the slab moment distribution and lateral drift observed in the test specimen. Effective width factors, a, and slab cracking factors, β, are suggested for use in modeling of flat plates for lateral and gravity load analysis.

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