29th progress report
I. SCOPE OF THIS REPORT Tests were conducted on nine beams with unstiffened top flanges, viz., 14-2 1/4-1,2,3; 16-2 1/2-1,2,3; 16-3,1,2,3. Beam 14-2 1/4 - 2 was the first to be spot-welded in our shop. This beam warped badly in welding and, when tested, failed at a much lower load thant the other two beams of the same type, due to initial distortion. For this reason the results of this test were discarded and are not included in this report. Beams 18-2 1/2 according to our drawing were to be of 18 ga. metal. It turned out, however, that all three beams of this type were formed of 16 ga. sheets; consequently, the designation was changed to 16-2 1/2. This report contains ony the data of the tests. The evaluation of the test results will be carried out after a larger number of beams have tested.
Civil, Architectural and Environmental Engineering
American Iron and Steel Institute
Wei-Wen Yu Center for Cold-Formed Steel Structures
01 Dec 1942
Cornell University School of Civil Engineering, "Cornell University School of Civil Engineering Tests on light beams of cold-formed steel" (1942). CCFSS Library (1939 - present). 10.