the case of an i beam such as i beam 10 and in the event of fabrication created deformation or distortion as illustrated in dashed lines in fig2 suitable correction can be implemented for example by applying compressive clamping pressure to the u201c splayed u201d portions of flanges 10 b 10 c see arrows 17 the right sides thereof as pictured in fig2 to bring the two flanges into proper parallel planarity and into conditions with their nominal planes 10 b 1 10 c 1 at right angles to web plane 10 a 1 with this corrective action performed and while proper transverse cross sectional configuration is u201c held u201d the u201c corrected u201d beam end is fitted complementarily snugly and u201c capturedly u201d with the female prepared side of a beam end mounting component with a beam 10 so positioned with respect to component 16 one will observe that effectively the transverse cross section or footprint of the beam is captured and locked against distortion in a transverse sense also with a beam end thus properly poised relative to a beam end mounting component 16 pockets of space generally shown at 18 exist for the creation in each of a molten weld pool during intended welding of the beam end to the beam end mounting component the presence and utility of regions 18 in component 16 are more fully described in another.