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Title: Plain And Reinforced Concrete Arches

Author(s): ACI Committee 312

Publication: Journal Proceedings

Volume: 37


Appears on pages(s): 1-28

Keywords: none

Date: 9/1/1940

A summary of the work done by Committee 312 since the publication of its progress report in 1932, and presents for discussion a suggested specification for reinforced concrete arch design. Further investi- gation has been made of the effects of shrinkage and plastic flow. Measurements on large arches at Pitts- burgh over a period of years are presented and dis- cussed along with the results of other investigations. Recommendations are made as to the calculations of moments and thrusts due to loading and volume changes, A new method is proposed for the design of the arch rib based on ultimate strength formulas and a new approach to the question of factor of safety for members subjected to direct load and flexure.


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