balsa wood through or under???


by lord_jebus
Tags: balsa, wood
lord_jebus
lord_jebus is offline
#1
Feb7-10, 03:28 PM
P: 3
hi,

i have to design and build a balsa wood bridge for a class at university,

i've been reading up and it seems for this type of material its best to use a truss bridge as its only good in tension or compression

the load will be at the bottom i think

wondering whether a through truss would be better than an under truss and why? cant find any info on why an under truss isnt used much apart from clearance/space issues.

also which is better for a load directly applied in the centre, the pratt or the howe? im not certain

any advice would be greatly appreciated

thanks

andy
Phys.Org News Partner Science news on Phys.org
Review: With Galaxy S5, Samsung proves less can be more
Making graphene in your kitchen
Study casts doubt on climate benefit of biofuels from corn residue

Register to reply

Related Discussions
Balsa Wood Bridge General Physics 2
Balsa wood beam Engineering, Comp Sci, & Technology Homework 0
balsa wood glider help General Physics 2
Balsa Wood Beam Introductory Physics Homework 1
Balsa Wood Bridge Introductory Physics Homework 1