Partial Issues and Solutions in Steel Structure Construction
Partial Issues and Solutions in Steel Structure Construction 1. Component Manufacturing Issues The plates used in portal frames are very thin, sometimes as thin as 4 millimeters. For cutting multiple thin plates, shearing should be selected over flame cutting. Flame cutting causes significant wave-like deformation along the plate edges. Currently, most manufacturers use submerged arc automatic welding or semi-automatic welding for H-beam welding. If not properly controlled, welding deformation may occur, causing components to bend or twist. 2. Column Base Installation Issues (1) Embedded Parts (Anchor Bolts) Problems: Overall or layout misalignment; incorrect elevation; lack of thread protection. Directly causes misalignment of steel column base plate bolt holes, resulting in insufficient thread length. Measures: Structural steel contractors must coordinate with civil engineering teams to complete embedded part installation before concrete pouring. Relevant dimensions must be veri...