Chapter 7: roof assembly – Grain Systems Tanks PNEG-4090A User Manual

Page 79

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Chapter 7: Roof Assembly

Table 7-1 A-frame installation sequence and temperature cable locations for 90 ft diameter bin

A-frame number

Rafter Number

Temp Cable Number

Radius Location

A1

R1

T16

35.5 ft

R2

T2

14.8 ft

A2

R19

T12

35.5 ft

R20

T5

14.8 ft

A3

R13

T10

35.5 ft

R14

T4

14.8 ft

A4

R7

T8

35.5 ft

R8

T3

14.8 ft

A5

R25

T14

35.5 ft

R26

T6

14.8 ft

A6

R23

R24

A7

R5

R6

A8

R15

R16

T11

35.5 ft

A9

R27

R28

T15

35.5 ft

A10

R29

R30

A11

R11

R12

A12

R17

R18

A13

R3

R4

T7

35.5 ft

A14

R9

R10

T9

35.5 ft

A15

R21

R22

T13

35.5 ft

NA

Attach to center collar

T1

5 ft

NOTE: A-frames labeled “A1” through “A5” have X-bracing and are installed first. A-frames labeled “A6”

through “A15” are standard A-frames. The empty spaces that are not labeled must have purlins
installed between the rafters after all the A-frames are secured. The numbers reflect the recom-
mended installation sequence of the A-frame assemblies.

Table 7-2 Starting lengths for temperature cables for 90 ft diameter bins

Length from the center collar

268.9 in. (683.01 cm)

Length from 14.8 ft diameter location

202.1 in. (513.33 cm)

Length from 35.5 ft diameter location

55.4 in. (140.72 cm)

Pneg-4090A 90 Ft Diameter 40-Series Bin

79

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