CCFSS Library (1939 - present)

Alternative Title

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.


Male, Milton


Civil, Architectural and Environmental Engineering


American Iron and Steel Institute

Research Center/Lab(s)

Wei-Wen Yu Center for Cold-Formed Steel Structures

Publication Date

01 Dec 1942

Document Version

Final Version


Twenty-Ninth Progress Report

Document Type

Technical Report

File Type