AISC PARTE 2

Page 72

BEAM DIAGRAMS AND FORMULAS

4 - 205

BEAM DIAGRAMS AND FORMULAS Design properties of cantilevered beams Equal loads, equally spaced No. Spans

System a

2

M1 M1

M1

A

B

3

A

b

b

M3

M3

M2

M2

M3

C

D

c

c

C

D

M1

M1 M1

M1

M4

A

E

4

A

E

d

M1 M1

b

D

M1

D M1 M1

A

F

H

f

f

H M3

C M1

M5

H

G

3

F

A

4 P 2

P

P

5 P

P 2

P 2

P

P

P

P

Moments

P

P 2

M1 M2 M3 M4 M5

0.086PL 0.096PL 0.063PL 0.039PL 0.051PL

0.167PL 0.188PL 0.125PL 0.083PL 0.104PL

0.250PL 0.278PL 0.167PL 0.083PL 0.139PL

0.333PL 0.375PL 0.250PL 0.167PL 0.208PL

0.429PL 0.480PL 0.300PL 0.171PL 0.249PL

Reactions

P

D M1

M3

H

M2 d

e

A B C D E F G H

0.414P 1.172P 0.438P 1.063P 1.086P 1.109P 0.977P 1.000P

0.833P 2.333P 0.875P 2.125P 2.167P 2.208P 1.958P 2.000P

1.250P 3.500P 1.333P 3.167P 3.250P 3.333P 2.917P 3.000P

1.667P 4.667P 1.750P 4.250P 4.333P 4.417P 3.917P 4.000P

2.071P 5.857P 2.200P 5.300P 5.429P 5.557P 4.871P 5.000P

Cantilever Dimensions

P

H

M3

P 2

M3 M3

M3

M3

P 2

b

M3 M3

M3

2 P 2

P

C

f

M3

M3

G

D

f

M3

M5

M2

H

M3 H e M3

d

M3 M3

f

M3 M3

b

M3 M3

H

f

M3

A

f

f

M3

G

b

C M1

F

M3

F

D M1

G

M5

M2

d

M5

e M3

M1

C

e

M3

G

d

Typical Span Loading

H

M3

F

M2

M3

H e M3

d

M5

A

b

M3

M3 M3

M1 A

C

f

M3

M3

M1

n

D

f M3

M2 C

M2

G

F

5

≥7 (odd)

M3 M3

M5

A

≥6 (even)

b

e M3

a b c d e f

0.172L 0.125L 0.220L 0.204L 0.157L 0.147L

0.250L 0.200L 0.333L 0.308L 0.273L 0.250L

0.200L 0.143L 0.250L 0.231L 0.182L 0.167L

0.182L 0.143L 0.222L 0.211L 0.176L 0.167L

0.176L 0.130L 0.229L 0.203L 0.160L 0.150L

AMERICAN INSTITUTE OF STEEL CONSTRUCTION

P 2


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AISC PARTE 2 by William Gamboa - Issuu