engineering fundamentals Discussion Forum
Directory | Career | News | Standards | Industrial | SpecSearch®
Home Membership Magazines Forum Search Member Calculators

Materials

Design

Processes

Units

Formulas

Math
List Recent Topics | Start a New Topic
 

<< Previous Message No. 18273 Next >>
Author: cessna
Time: 12/12/06 09:20 PST
This is a reply to message no. 18259 by timwpa
Reply | Original Message | New Topic | List Topics | List Messages on This Topic
Current Topic:
Beam Loading Question

TIM:  Lacking a lot more of specific informaito I suggest that you talk to the building department and/ or engineer's office in your town or city.  Building code books tell you how to compute the beam loading and the deflection/stress limits.  I suspect if the builder spaced them at 9 ft, that is pretty much the limit.  1 inch deflection sounds like a lot over the 15.5 feet.  Assuming the 1 inch deflection is correct then for a uniformly distributed load the deflection is proportional to the fourth power of the unsupported length.  That means at 1.0" at 15.5 ft span corresponds to 0.11" at the 9 foot span.  You may have a problem here.

Regards

Dave  

[ List Replies to This Message Only ]

Home  Membership  About Us  Privacy  Disclaimer  Contact  Advertise

Copyright © 2017 eFunda, Inc.