Beam end construction for semi-rigid connection to a column

Claim 2

A semi-rigid building frame structure comprising a vertical column of H-shaped cross-section having parallel, vertical first and second flanges interconnected by a web arranged perpendicular thereto, a horizontal beam of H-shaped cross-section extending at right angles from said column and having parallel, horizontal top and bottom flanges interconnected by a web arranged perpendicular thereto, said web of said beam having an elongated recess along its upper edge extending from one end thereof, said recess and said top flange defining an elongated slot separating said top flange from said web of said beam and thereby providing a separated top flange portion, said separated top flange portion being capable of elongation upon loading of said beam, an elongated, flat, vertical support plate having one side abutting said one end of said beam in surface-to-surface relation, the ends of said flanges and web of said beam being welded to said support plate, the opposite side of said support plate abutting the outer side of said first flange of said column in surface-tosurface relation, vertical rows of aligned openings in said support plate and said first flange, and bolts extending through said aligned openings to secure said column and beam together.

Claim 3

A semi-rigid building frame structure comprising a vertical column of H-shaped cross-section having parallel, vertical first and second flanges interconnected by a web arranged perpendicular thereto, a horizontal beam of H-shaped cross-section extending at right angles from said column and having parallel, horizontal top and bottom flanges interconnected by a web arranged perpendicular thereto, said web of said beam having an elongated recess along its upper edge extending from one end thereof, said recess and said top flange defining an elongated slot separating said top flange from said web of said beam and thereby providing a separated top flange portion, said separated top flange portion being capable of elongation upon loading of said beam, an elongated, flat, vertical support plate having one side abutting said one end of said beam in surface-to-surface relation, the ends of said flanges and web of said beam being welded to said support plate, the opposite side of said support plate abutting the outer side of said first flange of said column in surface-to-surface relation, vertical rows of aligned openings in said support plate and said first flange, and bolts extending through said aligned openings to secure said column and beam together.

Claim 4

A semi-rigid building frame structure comprising a vertical column of H-shaped cross-section having parallel, vertical first and second flanges interconnected by a web arranged perpendicular thereto, a horizontal beam of H-shaped cross-section extending at right angles from said column and having parallel, horizontal top and bottom flanges interconnected by a web arranged perpendicular thereto, said web of said beam having an elongated recess along its upper edge extending from one end thereof, said recess and said top flange defining an elongated slot separating said top flange from said web of said beam and thereby providing a separated top flange portion, said separated top flange portion being capable of elongation upon loading of said beam, an elongated, flat, vertical support plate having one side abutting said one end of said beam in surface-to-surface relation, the ends of said flanges and web of said beam being welded to said support plate, the opposite side of said support plate abutting the outer side of said first flange of said column in surface-to-surface relation, vertical rows of aligned openings in said support plate and said first flange, and bolts extending through said aligned openings to secure said column and beam together.