maxwell diagram

7/16/2019 Maxwell Diagram

http://slidepdf.com/reader/full/maxwell-diagram 1/13

 Applied StructuresCMT 3350

Session 4: Trusses

7/16/2019 Maxwell Diagram

http://slidepdf.com/reader/full/maxwell-diagram 2/13

Material for Today

 Analysis by Maxwell Diagrams

7/16/2019 Maxwell Diagram

http://slidepdf.com/reader/full/maxwell-diagram 3/13

 Analysis of Trusses

By Maxwell Diagrams

7/16/2019 Maxwell Diagram

http://slidepdf.com/reader/full/maxwell-diagram 4/13

 Analysis by Maxwell Diagram

15K 

30K 

30K 

30K 

15K 

12 ft 8 ft 8ft 12 ft

9 ft

9 ft

4ft4ft

7/16/2019 Maxwell Diagram

http://slidepdf.com/reader/full/maxwell-diagram 5/13

Free Body Diagram

R  Ay

R  Ax

R By

15K 

30K 

30K 

30K 

15K 

12 ft 8 ft 8ft 12 ft

9 ft

9 ft

4ft4ft

0x AxF R= =∑

0 15 30 30 30 15y Ay ByF R k k k k k R= = − − − − − +∑0 30 12' 30 24' 30 36' 15 48' 48'

 A yM k k k k B= = + + + +

∑i i i i i

= 60k = 60k 

7/16/2019 Maxwell Diagram

http://slidepdf.com/reader/full/maxwell-diagram 6/13

Bow Notation

15K 

30K 

30K 

30K 

15K 

R  Ay

R By

1

23

4

5

 A 

B

C

D E

F

G

7/16/2019 Maxwell Diagram

http://slidepdf.com/reader/full/maxwell-diagram 7/13

Maxwell Diagram

 A 

B

C

D

E

F

G

1

2

3

60K  60K 

15K 

30K 

30K 

30K 

15K 

1

23

4

5 A 

B

C

D EF

G

4

,5

7/16/2019 Maxwell Diagram

http://slidepdf.com/reader/full/maxwell-diagram 8/13

 Analysis by Maxwell Diagram50k  50k 

50k 

20k 

12’  12’  6’ 

6’ 

6’ 

7/16/2019 Maxwell Diagram

http://slidepdf.com/reader/full/maxwell-diagram 9/13

Free Body Diagram50k  50k 

50k 

20k 

12’  12’  6’ 

6’ 

6’ 

R Bx

R  Ax R  Ay

7/16/2019 Maxwell Diagram

http://slidepdf.com/reader/full/maxwell-diagram 10/13

Bow Notation50k  50k 

50k 

20k 

285K 

265K 150K 

 A B

C

D E

G

F

1 3

2

4

7/16/2019 Maxwell Diagram

http://slidepdf.com/reader/full/maxwell-diagram 11/13

Maxwell Diagram

50k 

50k 

50k 

20k 

285K 

265K  150K   A B

C

D E

G

F

1 3

24

 A 

B

C

D

E

F

G

1

2

3

4

7/16/2019 Maxwell Diagram

http://slidepdf.com/reader/full/maxwell-diagram 12/13

Summary

Three Methods of Analysis Method of Joints

Method of Sections

Maxwell Diagrams

7/16/2019 Maxwell Diagram

http://slidepdf.com/reader/full/maxwell-diagram 13/13

Rap Up

 Assignment – Chapter 4 – 1.27, 1.302.1, 2.5, 2.11, 3.1, & 3.6 Due 10/02