Author(s)

T.A. Siewert, C.N. McCowan, R.A. Bushey, J. Doherty, T. Christ, D.J. Kotecki, D.L. Olson, L.W. Myers Jr., E. Hinshaw & S. Kiser

Abstract

This report describes some options for weld repairs to the outer shell of the dome on the US. Capitol. During the past 140 years, corrosion products have built up within many of the joints, leading to cracking of some of the iron castings that form the shell. Since the dome is a national landmark, the goal is to restore the structural integrity of the original castings, replacing as few of the components as is absolutely necessary. While mechanical joining of the fractures or filling of the gaps with epoxy are alternative procedures, a fused (leak-tight) and

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