ML20126J990

Rev 0 to Structural Steel Analysis for Peach Bottom Generating Station:Calculation 97,Unit 2,3,Turbine Bldg El 116 Ft Janitor Room,Fire Area 116

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: ML20126J783 ML20126J825 ML20126J840 ML20126J858 ML20126J886 ML20126J909 ML20126J926 ML20126J952 ML20126J976 ML20126J990
References
NUDOCS 8506100751
Download: ML20126J990 (5)

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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: _D _ _____ 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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There are no combustible liquida or cable traya located in this area. ,

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3. VgNIIb6IIgN_geg6MEIggg J There is one door,which enters this area.

9egr_ __gige__ 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

( temperature less than 11000F.

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Eire _Duratigg 946_1hWfs21 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. For the temperatures greater than 1100 0 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 North wall (6' x 18') 108 ft 22 East wall (5' x 18') 90 ft South wall (6' x 18') 108 ft 22 West wall (5' x 18') 90 ft 396 ft 2 Ceiling 30 ft Total Area for Heat Transfer 426 ft 2

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ATTACHMENT A

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