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BRIDGE CONSTRUCTION

BRIDGE BUILDING CLASS PACKS

This classroom pack lets every student explore the basics of structural engineering. 25 Students.

You may add students for an additional $2.75/balsa, $3.25/basswood per student.

Kit includes the following:

400 pieces of wood Balsa strips are 1/8"x1/8"x36"/ Basswood are 1/8"x1/8"x24".

25 each student instruction sheets.

25 each grid sheets.

2-16oz. bottles of white glue.

25 empty glue vials.

25 each single edge razor blades.

50 each toothpicks for glue application.

1 Bridge Design and Construction booklet.

#BB25A- Balsa Bridge Class Pack...$68.00

#BB25B- Basswood Bridge Class Pack...$79.50

How to use the class pack:

Teacher reviews information found in Bridge Design and Construction booklet. Students start with the

instruction sheet and the grid sheet. Once the design is on the grid sheet and approved by the instructor, each

student receives up to 16 pieces of wood (rules may vary) and a vial of glue, a toothpick and a single edge razor

blade. Using the student instruction sheet and the approved grid sheet, each student constructs their own bridge.

BRIDGE BUSTER

VIDEOS / SOFTWARE: BRIDGES

#WW-99...$135.00

Bridges-video...$49.95 22 min.

This production covers the history of bridges, the various uses of

bridges and the four basic bridge designs.

Build `Em and Bust `Em-video...$15.25 #561 12 min.

This tape follows a middle school throughout the model bridge

building experience.

Welding Rod Model Bridges-video...$70.25 #20353

This video outlines basic engineering terms students must

know about bridge building in general. Finished Bridges will be

stress tested. Live action video.

Model Bridges-video...$70.25

#20352

An extremely sturdy device for testing bridges made of

This video is bases around the annual college engineering

basswood, balsa, toothpicks and macaroni. Honestly, the

student model bridge building contest. Live action video.

variety of materials used in bridge building is amazing. But

Structures and Bridges-software...$71.25

many state requirements are that the bridge be built out of

#PC250

basswood or balsa strips. The Bridge Buster has been designed

This program reviews the six most common types of bridges. This

with two goals in mind; One, to keep the cost down, the second

program comes complete with a computer based test and an

to keep the testing capabilities high. The capability is higher

instructor grade book. Also included are paper based word

then most students can reach. Here is how the tester works:

searches, crossword puzzles and student worksheets.

Measures in two pound increments from 2# to 240# using a

second scale at 120# (included). Construction is of steel and

Quake proof - Building the perfect Bridge...$149.95 #35730

plexiglass with a gloss black finish. Bridge holding transverses

Modern anti-earthquake preparation documents the replacement of a

are adjustable up to 18". This is a pull down, static load as

major section of the San Francisco-Oakland Bay Bridge. Seismologists

opposed to push up and non static devices. A useful teachers

and engineers at work--testing bridge columns with a giant "shake

manual included.

table," predicting the area's next quake, and demonstrating the

phenomenon known as liquefaction. (52 minutes)