Kolbjørn Saether

[1] During his career he developed innovative engineering solutions for skyrise building construction that are now part of the Chicago skyline, published theoretical insights to enhance the state of the art in structural engineering, and patented novel techniques to advance the art of building construction.

Office and apartment building, 30 East Huron Street, Chicago, IL (1983) "A unique design resulting in a very slender structure in which the lightness of post-tensioned slabs were blended with an innovative method for reducing lower story moments through the use of outrigger supports."

Due to the narrow tower, it was necessary to provide three lines of "couple" shear walls to maintain acceptable stiffness.

This, however, was easily overcome by deflecting the banded-tendon runs in the traverse direction laterally to correspond to the column layout.

The longitudinal tendons were generally uniformly spaced except where they had to be deflected laterally around slab openings and mechanical obstructions.

The more subtle advantage of post-tensioned construction is the resulting flatness of the slabs, making it easier for the finishing trades to install drywalls, shower bases, bathtubs and tiles, kitchen cabinets, and to align trims and moldings.

Also, the crack-free exterior spandrel system is to a great extent to be credited to the compression introduced by the pre-stressing tendons.

Rising high above the city, the twin 28-story residential condominium towers afford owners luxurious living space and unexcelled convenience in a totally safe, secure environment.

[3] Kolbjørn Saether generated numerous patents to provide cost saving solutions to various aspects of high-rise building construction.

[4] As shown, double Sky-Forks with seven-ton capacity are suspended in perfect equilibrium from a single crane hook.

The sky-fork material handling system provides the contractor with a tool for projects where the building frame is cantilevered out at various levels.

[5][6] The multi-leveling component system (MLCS), an upgraded lift-slab method that uniquely allows all slabs of a building to be raised in one smooth operation.

The MLCS method departs from this by raising the entire stack of concrete floor slabs in one smooth operation.

When existing warehouses and shops no longer have adequate headroom, the Saether approach of lifting the roof offers a simple solution at a fraction of the cost of new construction.

Of the many accolades he received from the City and his peers, a sampling of some of his most important awards includes the following citations: Kolbjørn Saether produced a number of refereed technical journal publications together with numerous reports on specific projects he worked on.