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Technical Report
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Navy Civil Engineer
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Congressional Record
The Congressional Record is the official record of the proceedings and debates of the United States Congress. It is published daily when Congress is in session. The Congressional Record began publication in 1873. Debates for sessions prior to 1873 are recorded in The Debates and Proceedings in the Congress of the United States (1789-1824), the Register of Debates in Congress (1824-1837), and the Congressional Globe (1833-1873)
Static and Dynamic Behavior of Antisymmetrically Loaded Arches
Four pinned-base steel arches with a 96-inch radius, 143.8-inch span, and uniform cross section were cold-rolled from 4M13 sections and tested under various static and dynamic loads uniformly distributed over one-half the arc length. A maximum static load of 72,000 pounds was applied by the NCEL blast simulator using compressed air. A dynamic peak load of 64,000 pounds was attained by detonating Primacord in the blast simulator. The blast loading had a rise time of about 3 milliseconds and a decay time of about 1.6 seconds. An equivalent triangular load-time function was used for the dynamic analysis. The applied loads and the resulting deflections, strains, and reactions were measured. The ...
