-- Scotts Contracting - StLouis Renewable Energy: Tributary Load

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Showing posts with label Tributary Load. Show all posts
Showing posts with label Tributary Load. Show all posts

7.25.2016

Deck Safety Support Beam

In addition to the 2 prior blog posts on deck safety anchor point support.
  1. Deck Failure Prevention Building Safety Issue

  2. Deck Failure FIXED Prevented Building Safety Issue
3. The opportunity presented itself with this deck to add a Double 2x6 Support Beam.  This Support Beam cut the stress load on the Ledger board by over 50%.  It reduced the ledger board tributary load by 85%.

Support Beam is responsible 96 Sq Ft of Deck Trib Load
Support Beam is responsible 96 Sq Ft of Deck Tributary Load Stress, easily handled by Double 2x6 that are glued and screwed!
The new support beam now carries the biggest percentage of the load on the deck.

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this blog post is not the place to teach about tributary loads.  A quick duckduckgo search pointed me to the following link:
Tributary Areas for Gravity Loads
Last Revised: 11/04/2014
If the beam is supporting a floor, roof, or wall that has a pressure loading normal to the surface, the total force on the beam equals the area of surface supported (i.e. the tributary area)...   http://www.bgstructuralengineering.com/BGSMA/BGTribArea/BGSMA_TA_02.htm



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