the Otherpower.com Discussion Board || Comments Tower wrecking

Front Page - [Homebrewed Electricity-- (wind) (solar) (hydro) (steam) (controls) (storage) (mechanical)] - Classifieds - Site News
Everything - Newbies - [Remote Living-- (housing) (heat) (light) (water)] - Rants & Opinion - Diaries - Our Products

Tower wrecking | 11 comments (11 topical, 0 editorial)

Re: Tower wrecking (none / 0) (#1)
by kell on Sun Dec 28th, 2003 at 05:56:08 PM MST
(User Info)

I wonder why you intend to do this test. Do you want to see how much wind load your tower will take? Wind loading exerts external forces. The proposed test exerts internal forces.
The test you described could give you some idea how much sheer weight the tower would support, since the cable will exert a downward force on the tower at its uppermost point, as would a massive mill of some sort. But what mill is so heavy and tower so weak as to buckle in such a way? A heavy mill poses a risk by making your tower more vulnerable to tipping!
Weakness will likely manifest itself where the sections of tower join and at the base. A tipping tower exerts the most moment (torque) at its base. Like a big lever.

The closest thing to copy wind loading and tipping would entail erecting the tower, attaching a cable to the tower somewhere between the middle and the top and pulling in a horizontal direction, insofar as possible.

Re: Tower wrecking (none / 0) (#2)
by rhud on Sun Dec 28th, 2003 at 06:04:56 PM MST
(User Info)

Hello,
New to this site, but i'll throw this in. Surplus Center has hand pumps with small oil tanks attached. i think they were used to lift the cabs of transfer trucks. seems they were around $150. you might try one of the "power pak" sets used for auto body work (northern or harbor freight) Are you near a community college? they might have one or a hydraulics lab with pump and gauges. might be a good project for the class. forgive my spelling.

[ Parent ]

Tower wrecking | 11 comments (11 topical, 0 editorial)

Menu

· create account
· How to use the board
· FAQs
· search the board
· Google search the board
· Old Otherpower Board

Login

Make a new account

Username:

Password:

You must be a registered user to post here. It's easy and free, and the link is on the upper right side of your page.
All trademarks and copyrights on this page are owned by their respective companies. Postings are owned by the poster, but may be deleted or moved at the ADMIN's sole discretion. The Rest © 2003 Forcefield.
You can Email the board ADMIN here. PLEASE include the username you signed up with!