AT ATLAS Induced Draft Counterflow Cooling Towers
4
Structural Steel Support
As standard, three structural “I” beams running the length of the unit are required for support of each cell. These beams should
be located underneath the outer flanges of the unit (See Figure 1 and 1a). Transverse steel arrangements are also available (see
Figures 1b and 1c). Mounting holes 3/4” (19mm) in diameter are located in the bottom flanges of the unit for bolting to the structural
steel (See steel support print in unit submittal for exact bolt hole location). Bolt the bottom sections to the steel support before
rigging the top sections.
Beams should be sized in accordance with accepted structural practices. Maximum deflection of the beam under the unit to be
1/360th of the unit length, not to exceed 1/2” (13mm). Deflection may be calculated by using 55% of the operating weight of the unit
as a uniform load on each beam (See certified print in unit submittal for operating weight).
The supporting “I” beams should be level before setting the unit. Do not level the unit by shimming between the bottom flanges and
the beams as this will not provide proper and continuous longitudinal support. Support beams and anchor bolts are to be furnished
by others.
Please refer to the unit submittal for detailed, project specific steel support arrangement.
24’
48’
30’
30’
Figure 1 - Standard Longitudinal Steel Support Arrangement
for 24’ x 30’ ATLAS
Figure 1b - Standard Transverse Steel Support Arrangement
for 24’ x 30’ ATLAS
Figure 1a - Standard Longitudinal Steel Support Arrange-
ment for 48’ x 30’ ATLAS
Figure 1c - Standard Transverse Steel Support Arrangement
for 48’ x 30’ ATLAS
