Register to reply

Distributing load weight?

by HeJind
Tags: distributing, load, weight
Share this thread:
HeJind
#1
Dec1-12, 10:00 PM
P: 5
Sorry if my English is bad. We're building bridges and learning about truss and truss variations, but I'm still confused as to why the triangular shapes work best and what they achieve. How would I know side would be compressed and which would be tense?

We have to build a bridge using roughly 10 dozen popsicle sticks. If I want to apply pressure/load to the middle, how would I design the bridge to distribute this evenly?

Apparantly last year someone got over 570llbs
Phys.Org News Partner Engineering news on Phys.org
Researchers use 3D printers to create custom medical implants
For secure software: X-rays instead of passport control
Razor-sharp TV pictures
justsomeguy
#2
Dec2-12, 01:52 AM
P: 166
Triangles "work best" because they're the only convex polygon that has intrinsic strength. You cannot change any angle of a triangle without also changing the length of one of the sides. You can change the angles of any other convex polygon without changing the length of any side; e.g. a square can be deformed into a parallelogram.


Register to reply

Related Discussions
Find load weight of the truck Engineering, Comp Sci, & Technology Homework 1
Gross weight load Engineering Systems & Design 7
Tension and Pulley Madness! (Load weight) Precalculus Mathematics Homework 4
Determine maximum allowable weight of a load supported by chains Mechanical Engineering 4
Determine the maximum allowable weight of a load supported by chains. Engineering, Comp Sci, & Technology Homework 1