ML20126J990
| ML20126J990 | |
| 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 8506100751 | |
| Download: ML20126J990 (5) | |
Text
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ff 1%fessional Loss Control, Inc.
STRUCTURAL STEEL ANALYSIS
- for PEACH BOTTOM GENERATING STATION Calculation No. 97 Unit 2,3 Turbine Building El. 116'-O" Janitor Room Fire Area 116 9
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Prepared by Date: _[~_2_M' E _
Reviewed by:
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Revision: 0 8506100751 850606 PDR ADOCK 05000277 F
PDR 7922 West Chester Pike
- Upper Darby, Pa. 19082 * (215) 853 1700
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PEACH BOTTOM GENERATING STATION 1.
AREA _QgggRIEIIQN The area under consideration is the Janitor Room on the 116'-O" elevation of the Turbine Building (Fire Area 116).
The bounding walls are constructed of reinforced concrete with an average thickness of 1 ft.
The total surface area for heat transfer la 426 ft2 (see Attachment A for e sketch of the area under consideration).
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ggggggIIgLg_LgepINg There are no combustible liquida or cable traya located in this area.
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There is one door,which enters this area.
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Legstien 124 3'-O"x 7'-O" West Wall 4-g8EEE_EE8EIEEE Since there are no exposed fixed combustibles in this area, no cases were examined for a general room fire.
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No general room fire was postulated because of the lack of exposed fixed combustibles in the area.
There are no cable trays in this area-to present a localized heating exposure to the structural steel.
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This area containa 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
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temperature less than 11000F.
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Eire _Duratigg 946_1hWfs 1 91hW1 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />" 10.5 416 2 houra 8.0 317 3 houra 6.5 257 The distance between the ficor and the deepeat beams supporting the ceiling is 16'-8 1/2".
The heat release rates required of floor level transient combustible fires to produce plume temperatures of 1100'F, 13OOOF and 15000F at the bottom
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flange.of the beam have been datermined and tabulated below.
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the temperatures greater than 1100 F the time required to heat the sizes of the beams supporting the ceiling have also been determined.
Ilms_te_1199 Elmial II 1 91hh1 W16_u_26 1100 7,257 1300 9,549 14 1500 12,042 10 l
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Unit 2,3' Turbine Building Elevation 116'-0" Janitor's Room
. Surface Area Calculation Walls 2
North wall (6' x 18')
108 ft 2 East wall (5' x 18')
90 ft 2 South wall (6' x 18')
108 ft 2 West wall (5' x 18')
90 ft 2
396 ft 30 ft Ceiling 2
Total Area for Heat Transfer 426 ft
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ATTACHMENT A
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