We use Optical Character Recognition (OCR) during our scanning and processing workflow to make the content of each page searchable. You can view the automatically generated text below as well as copy and paste individual pieces of text to quote in your own work.
Text recognition is never 100% accurate. Many parts of the scanned page may not be reflected in the OCR text output, including: images, page layout, certain fonts or handwriting.
(jjss) "T-1" Steel cuts cost
in1,199-ft.TVTower
This is the new 1,199-ft. WBZ-TV transmitting tower near Boston, Massachusetts. It's unique because up to the 838-ft. level its legs are of USS "T-1" Steel, a constructional alloy steel so strong that it enabled significant savings to the tower owner. This structure was designed and built by Dresser-Ideco for Westinghouse Broadcasting Co.
WBZ's tower presently supports a 6-bay channel 4 antenna, but future plans call for it to carry plenty of additional weight;
pending FCC approval, another 300 feet of height will bring it to an ultimate 1,499 feet. The tower had to be built with the strength to accommodate this extra weight without the necessity of future structural modifications.
Round, hot-rolled, heat-treated bars of USS "T-1" Steel were used for the three legs up to the 838-ft. height because this alloy steel has nearly three times the yield strength of structural carbon steel. It therefore enabled Dresser-Ideco to reduce the size of the legs greatly, lowering shipping weight, welding costs, wind stresses and over-all weight and price. For example, consider the leg members at the bottom of the tower. Cross-sectional area of these "T-1" bars is only 56% of the area required with the usual structural carbon steel, resulting in a 44% material savings. Also saved: the cost of hot forging and machining, since carbon bars of the size required for the biggest members are too large to be produced economically by hotrolling. Altogether, the builders estimate that "T-1" Steel cut the cost of this tower by 15%.
You, too, can achieve significant cost savings by specifying USS "T-1" Steel for large towers. For further information, write United States Steel, Room 2801, 525 William Penn Place, Pittsburgh 30, Pa.
Ail.
I*
1 .v
si
m) United States Steel
Broadcasting
March 17, 1958 • Page 83