ML20126J926
| ML20126J926 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 05/24/1985 |
| From: | Dewey J, Melly B PROFESSIONAL LOSS CONTROL, INC. |
| To: | |
| Shared Package | |
| ML20126J788 | List: |
| References | |
| NUDOCS 8506100736 | |
| Download: ML20126J926 (5) | |
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STRUCTURAL STEEL ANALYSIS for PEACH BOTTOM GENERATING STATION Calculation No. 94 Unit 2,3 Turbine Building El. 116'-O" Counting Room Fire Area 78E Prepared byt Date: _8" (Y_~_8_(_
Reviewed by:
h Revision: O kl A
7 1922 West Chester Pike
- Upper Darby, Pa.19082 e (216) 853 1700
m-A Pmfruional tan Contml Inc.
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PEACH BOTTOM GENERATING STATION 1-eBE6_QEggBIEIlgM The area under consideration is the Counting Room on the 116'-O" elevation of the Turbine Building (Fire Area 78E).
The bounding walls are constructed of reinforced concrete with an average thickness of 1 ft.
The total surface area for heat transfer la 1,242 ft2 (see Attachment A for a sketch of the area under consideration).
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gggggSIlg(E_(Q6plHQ There are no combustible liquida or cable traya located in this area.
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There is one door khich enters this area.
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Leestien 119 3'-O"x7'-O" East Wall
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C6gEg_gX6HIHgg Since there are no exposed fixed combustibles in this area, no cases were examined for a general room fire.
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Pmfruionalloss ontml.Inc.
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Eg@ybIf No general room fire was postulated because of the lack of exposed fixed combustibles in the area.
There are no cable traya in this area to preacnt a localized heating exposure to the structural steel.
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This area contains no exposed fixed combustibles.
The table below lista the maximum heat release rate for transient
-combustibles for different fire durations which result in an area 0
temperature less than 1100 F.
2 Eire _gurntien 926_1hWlm 1 91hW1 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> 10.5 1212 2 hourd 8.0 923 3 houra 6.5 750 The distance between the floor and the deepeat beams supporting the ceiling in 16*-8 1/2".
The heat release rates required of floor level transient combustible fires to produce plume 0
temperatures of 1100 F, 13OOO.e and 1500 F at the bottom 0
flange of the beam have been determined and tabulated below.
For the temperatures greater than 1100 F the time 2
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.s hofeesional1.aen Courel,ine.
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required to heat the sizes of the beams supporting the ceiling have also been determined.
Ilme_te_1199 Elmin!
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Il 1 91BW1 W16_x_99_
'1100 7,257 1300 9,549 38 1500 12,042 26 t
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Q..i Unit 2,3 Turbine Building, Elevation 116'-0" Counting Room Surface Area Calculation Walls 2
North wall (11' x 18')
198 ft 2 East wall 18' x 18')
324 ft2 South wall 11' x 18')
198 ft2 West wall 18' x 18')
324 ft j
2 1,044 ft 2
Ceiling (11' x 18')
198 ft 2
Total Surface Area Calculation 1,242 ft
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ATTACHMENT A