1.1 ,This test method provides a comprehensive method for determining the seam strength for bolted longitudinal lapped seams in deep corrugated structural steel plate. The test method includes a laboratory test procedure which specifies specimen preparation, test equipment, and data collection. The test method also includes a method to calculate seam strength from the test results. This standard test method is applicable to corrugated steel structures with ultimate strength of bolted seams provided in Practice A796/A796M.