DESIGN AID FOR CONTINUOUS BEAMS
Abstract
Analysis and design of beam is still an important part in Structural Engineering practice. As a major component in structure, it
demands due attention and accuracy. At the same time engineers need to achieve economy in time and cost in the design of
beams.To assist designers moment coefficients are developed for continuous beams in this work. Existing ACI moment
coefficients are applicable only under certain conditions and have some limitations. This study is an attempt to develop moment
coefficients for beams which will be applicable beyond ACI limitations. Comparison of developed coefficients with
corresponding ACI coefficients has been done and a satisfactory agreement is found. However, ACI coefficients are found to be
conservative. Additionally design tables are developed for selection of RC beam section and reinforcement when design bending
moment and shear are available. SAP2000 has been used for analysis of beams during the study. Models are used to generate
exact moment coefficients for beams of different span ratios and spans under uniform loading. The moment coefficients and
design tables generated in this work will be useful for practicing engineers for quick design.
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References
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[4] Norris C.H., Wilbur J.B. and Uktu S., 1991, Elementary Structural Analysis, McGraw-Hill, 4th Edition.
[5] Reynolds C.E. and Steedman J.C., 1988, Reinforced Concrete Designer’s Handbook, E & FN Spon, 10th Edition.
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