Frame Analysis of Concrete Buildings

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Title: Frame Analysis of Concrete Buildings

Author(s): M. Daniel Vanderbilt and W. Gene Corley

Publication: Concrete International

Volume: 5

Issue: 12

Appears on pages(s): 33-43

Keywords: beam-column frame; beams (supports); col-umns (supports); compressive strength; connections; edge beams; flat concrete plates; flat concrete slabs; flexural strength; frames; framing systems; lateral pres-sure; loads (forces); mathematical models;

Date: 12/1/1983

Abstract:
Plane frame analysis is often used in analyzing un-braced reinforced concrete buildings for horizontal and vertical static loads. Modeling the stiffness of the beam-column connections in the frames is complicated by the difficulty in correctly defining the path of moment transfer. Three models of connection behavior are discussed: the equivalent beam width, transverse tor-sional member, and stub beam models. The equivalent frame method, developed around the torsional member model, was introduced in the ACI 318-71 code for the analysis of single floors under vertical load. A procedure for extending the method to encompass complete buildings of either flat plate or flat slab construction (divided into parallel frames) car