5 5a 5b 5c Alaterally supported beam was designed for flexure. The beam is safe for shear & deflection. The most economical section is W 8 x 13 however the said section is not readily available at the time of the construction. If you are the engineer in charge of the construction what alternative section will be the best replacement? Why? Use: Fy=248 MPa: E=200,000 MPa Designation Weight Ag (mm2) 1910 kg/m d (depth) mm 15 width 19 30 24 flange bf 100.06 W8 x 10 200.41 5.21 expla'n briefly your cho'ce. (transform your comparative analys's 'nto a narat've form to support your cho'ce) W8 x 13 2477 202.05 101.60 W6 x 20 3787 157.48 W6 x 16 3058 159.51 thickness tf 152.91 102.36 Web 6.48 9.27 10.29 thickness tw 4.32 5.84 Elastic Properties mm 4 mm 3 Ix x 106 Sxx 103 6.60 6.60 13 16 17 13 126 162 220 167 mm rx 81.79 81.53 67.56 66.04 mm 4 lyx 106 1 1 6 2 mm 3 Sy x 106 17 22 mm ry 21.36 21.41 72 38.10244 36 24.54 Plastic properties mm 3 mm 3 Zxx 103 145 187 244 192 Zyx 103 27 35 110 56 h=d-2k h 168.28 168.28 120.65 120.65

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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5
5a
5b
5c
Alaterally supported beam was designed for flexure. The beam is safe for shear & deflection. The most economical
section is W 8 x 13 however the said section is not readily available at the time of the construction. If you
are the engineer in charge of the construction what alternative section will be the best replacement? Why?
Use: Fy=248 MPa: E=200,000 MPa
Designation
Ag (mm2)
Weight
kg/m
1910
19
30
width
24
flange.
thickness
d (depth) mm
200.41
bf
100.06
W8 x 10
4.32
15
expla'n briefly your cho'ce. (transform your comparative analys's 'nto a narat've form to support your cho'ce)
W8 x 13
2477
202.05
101.60
6.48
W6 x 20
3787
157.48
9.27
152.91
102.36
W6 x 16
3058
159.51
10.29
tf
Web
5.21
thickness
tw
Elastic Properties
mm 4
Ix x 106
mm 3
Sx x 103
5.84
6.60
6.60
13
16
17
13
126
162
220
167
mm
rx
81.79
81.53
67.56
66.04
mm 4
lyx 106
1
1
6
2
mm 3
Sy x 106
17
22
72
36
mm
ry
21.36
21.41
38.10244
24.54
Plastic properties
mm 3
Zx x 103
145
187
244
192
mm 3
Zyx 103
27
35
110
56
h=d-2k
h
168.28
168.28
120.65
120.65
Transcribed Image Text:5 5a 5b 5c Alaterally supported beam was designed for flexure. The beam is safe for shear & deflection. The most economical section is W 8 x 13 however the said section is not readily available at the time of the construction. If you are the engineer in charge of the construction what alternative section will be the best replacement? Why? Use: Fy=248 MPa: E=200,000 MPa Designation Ag (mm2) Weight kg/m 1910 19 30 width 24 flange. thickness d (depth) mm 200.41 bf 100.06 W8 x 10 4.32 15 expla'n briefly your cho'ce. (transform your comparative analys's 'nto a narat've form to support your cho'ce) W8 x 13 2477 202.05 101.60 6.48 W6 x 20 3787 157.48 9.27 152.91 102.36 W6 x 16 3058 159.51 10.29 tf Web 5.21 thickness tw Elastic Properties mm 4 Ix x 106 mm 3 Sx x 103 5.84 6.60 6.60 13 16 17 13 126 162 220 167 mm rx 81.79 81.53 67.56 66.04 mm 4 lyx 106 1 1 6 2 mm 3 Sy x 106 17 22 72 36 mm ry 21.36 21.41 38.10244 24.54 Plastic properties mm 3 Zx x 103 145 187 244 192 mm 3 Zyx 103 27 35 110 56 h=d-2k h 168.28 168.28 120.65 120.65
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