For the arrangement of chairs in Figure 5.31, a fire starts in chair 1. Determine what chairs will be involved in the fire, and whatwill be the HRR curve. Use the following simplified version of the HRR for the upholstered chair with polyurethane foam pad-ding of Figure 5.16.HRR (Btu/s)300025002000150010005000Chair 1300HRR of ChairTime (s)012017524835460093021009 fl(2.7 m)R= 3 ft (0.91 m)Btu/s0282502010270150750Note: The symbol X indicates locationof ignition.Figure 5.31 Arrangement of chairs for Example 5.600Upholstered Furniturewith Polyurethane Padding:SofaChair900Time (s)300025002000150010005001200 1500 1800HRR (

Answered: Image /qna-images/answer/b9ac3ca5-4e0b-4db4-bf8b-597b945200c7.jpg

for the arrangement of chairs in Figure 5.31, a fire starts in chair 1. Determine what chairs will be involved in the fire, and wha will be the HRR curve. Use the following simplified version of the HRR for the upholstered chair with polyurethane foam pad Hing of Figure 5.16.

for the arrangement of chairs in Figure 5.31, a fire starts in chair 1. Determine what chairs will be involved in the fire, and wha will be the HRR curve. Use the following simplified version of the HRR for the upholstered chair with polyurethane foam pad Hing of Figure 5.16.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Pressure and Stress

Question

For the arrangement of chairs in Figure 5.31, a fire starts in chair 1. Determine what chairs will be involved in the fire, and what
will be the HRR curve. Use the following simplified version of the HRR for the upholstered chair with polyurethane foam pad-
ding of Figure 5.16.
HRR (Btu/s)
3000
2500
2000
1500
1000
500
0
Chair 1
300
HRR of Chair
Time (s)
0
120
175
248
354
600
930
2100
9 fl
(2.7 m)
R= 3 ft (0.91 m)
Btu/s
0
28
250
2010
270
150
75
0
Note: The symbol X indicates location
of ignition.
Figure 5.31 Arrangement of chairs for Example 5.
600
Upholstered Furniture
with Polyurethane Padding:
Sofa
Chair
900
Time (s)
3000
2500
2000
1500
1000
500
1200 1500 1800
HRR (<W)
Figure 5.16 HRR of upholstered furniture with poly-
urethane foam padding.

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