Message - Re: I-beam atttached concrete blocks need ideal

    Responses | Architecture Forum | Architecture Students | Architecture Scrapbook | ArchitectureWeek    

Posted by  Norb on December 08, 2003 at 10:23:35:

In Reply to:  Re: I-beam atttached concrete blocks need ideal posted by Dave on December 06, 2003 at 14:15:35:

General rule of thumb: Span [clear distance between the walls] divided by 2, + 2 = depth of beam in inches.
Example: 30 foot span divided by 2= 15, + 2 = 17 inches. Therefore, use an 18-inch deep beam [nothing made is 17" deep]; or a 16" that weighs more.
Beams are noted as W 18x40, for example, where the W is the type of beam [just take that and use a W beam], the 18 is the depth in inches and the 40 is the number of pounds the beam weighs per running foot [i.e. 30 foot beam would weigh 1200 pounds] So if you use a 16" beam it should weigh between 60-90 pounds a foot, so it is stout enoguh to hold the roof.

ArchitectureWeek     Buildings     Architects     Types & Styles     Search
Library     Places     Building Photos     Free 3D Models     Archiplanet

Architecture Search   by name of Building, Architect, or Place:
Examples:  "Fallingwater",  "Wright",  "Paris"
Advanced Search

Post a Response -


This is an archive page. Please post continuing discussion to the new Architecture Forums.

To post successfully to the new membership-based DesignCommunity Forums:

    1) Go to the new forums area.
    2) Register with a valid email address.
    3) Receive and respond to the confirmation email.
    4) Then login to the new forum system.

Architecture Forum | Students Forum | ArchitectureWeek Scrapbook | Home Design | 3D Gallery

Special thanks to our Sustaining Subscribers including .

Home | Great Buildings | CAD Outpost | DesignWorkshop | Free 3D | Gallery | Search | ArchitectureWeek
This document is provided for on-line viewing only.