Permanent Transfer Girders Discussed at Bucknell

Bucknell University students in Professor Nicholas Tymvios’ construction engineering class were given a preview of what theory looks like in action. McLaren’s Matt Kawczenski, P.E., S.E., F.SEI, Pennsylvania Regional Director, and Erin Schwab, Structural Engineer, both Bucknell alumni, walked the future engineers through first-hand problem-solving scenarios using their own projects as examples. For the historic retail renovation of the Bow Tie Building in Times Square, they discussed their role which included floor framing, reconfiguration of lateral and bracing systems, and facade replacement and how they applied innovative solutions to the project challenges.

The pair pin-pointed the CHALLENGES faced including varying geometry at each column transfer location, cambered shapes of unloaded permanent transfer girders, anticipated deflections during transfer operations of both the temporary and permanent steel, and structural stability during unbraced conditions and load transfer.

Stressing the development of custom SOLUTIONS they presented the design of tailored modular and adjustable shoring towers and jacking systems, development of detailed procedures and sequences for pre-deflecting permanent transfer girders, design of temporary column bracing and lateral systems, and daily on-site support during transfer operations.

Posted on: Mar. 17, 2021