1

Welcome to Mr. Cox’s Industrial Technology Class

5/4/04 9:01:13 AM

2

You are about to enter the Industrial Technology Twilight Zone

5/4/04 10:13 AM

3

Building model Bridges Following the Engineering Process• Objectives• Schedule of Activities• Basic Bridge Types• Bridge Structures• Truss Designs• History of American Bridges• Transportation in America• The use of Wooden Models

5/4/04 10:14 AM

4

Bridge

Building

at its

Best

04/20/23 02:40

5

Continued

• Contest Rules• Contest Judging And Evaluation• Additional Activities• Video Tape (Build Them And Bust Them)

5/4/04 10:15 AM

6

Objective of Activity

• Engineering principles behind bridge building

• Identify different types of bridges• Understand how bridges are built• Physics important for designing a

bridge

5/4/04 10:15 AM

7

Continued

• Understand what takes place before bridge construction

• Draw and build a bridge according to specifications using the principles of Engineering

5/4/04 10:16 AM

8

Schedule of Activities

• Introduction To Bridge Building• Project Detail• Designing plans• Construction process• Testing Process• Evaluation of end result

5/4/04 10:16 AM

9

Basic Bridge Types

• Beam• Clapper• Cantilever• Truss

10

Basic Bridge Types

•Arch Bridges

•Roman Arch Bridge

•Modern Arch Bridge

11

Basic Bridge Types

•Suspension bridges

•Simple

•Modern

12

Truss Designs

• King Post• Lattice Truss• Pratt Truss• William Howe Truss• James Warren Truss• Squire Whipple Truss • Albert Fink Truss • K-Truss

13

Truss Activity

• Follow the Five step exercise

• Most Importantly Enjoy Yourself

1414

History of American BridgesHistory of American Bridges

• Handout/Video Handout/Video TapeTape

• The strive for the The strive for the longest strongest longest strongest but most efficient but most efficient bridge.bridge.

15

Transportation in America

How do bridges play a roll in transportation??

16

The Use of Wooden Models

• Models• Models• Models• Models

17

Contest Rules And Judging Procedures

• See Hand Out

18

Contest Rules And Judging Procedures

• Follow all rules • Any rules not followed will result in

contest cancellation• Follow any additional rules given

by instructor

19

Evaluations

• See hand Out• Measuring Energy Efficiency

• E= Load supported = = mass of loadweight of bridge Mass of

bridge

20

Video Time

21

Video Talk Time

• Question Answer Quiz• Notes over movie

22

Preparation for Project

• 2 minutes of preparation saves two hours of work

23

In Conclusion

• Objectives• Schedule of Activities• Basic Bridge Types• Bridge Structures• Truss Designs• History of American Bridges• Transportation in America• The use of Wooden Models

24

Continued

• Contest Rules• Contest Judging And Evaluation• Additional Activities• Video Tape

25

Just Remember Have Fun

• Ha• Ha• Ha• Ha• Ha