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rafter bracing - Moment Frame & Shear Wall engineering
https://www.eng-tips.com/viewthread.cfm?qid=414322
Hi I am looking at rafter bracing for a portal frame structure approximately 80m long. I have always braced the 2 end bays in for rafter bracing and the the ends of the building in the rafter and then towards the centre of the building for vertical bracing.
Rafter bracing - Autodesk Community
https://forums.autodesk.com/t5/advance-steel-forum/rafter-bracing/td-p/8077816
Can you assist me with my recent encounter regarding the rafters in creating its support. I recently created a gable frame and I am required to create a bracing for the rafter, the attached image shows . how the rafter …
Structural engineering framing rafter design - online demo
http://www.framingdesign.com/structural_engineering_framing_rafter.html
Rafter is a closely spaced inclined beam, which is used to support the roof sheathing. Rafter spacing is usually provided at 24". Rafters are designed for bending, shear, deflection and bearing. Type of rafter to be used depends upon the rafter span. Based on the structural system provided rafters can be classified into following types:
Rafter Bearing and Anchorage – Wood Engineering
http://woodengineering.com/2021/09/16/rafter-bearing-and-anchorage/
Using 300 lb … and a (true) 2-inch wide rafter, bearing on at least 1.5 inch of header … 300 lb (man) divided by 2 inch (wide rafter) x 1.5 inch (length along header)… equals 300 lb / 3 square inches = 100 psi … any decent available wood should be able to carry 500 psi or more in bearing … Good!
Rafter unbraced length - Structural engineering general …
https://www.eng-tips.com/viewthread.cfm?qid=219831
When considering the rafter under uplift. The bending effective length (Le) will be from point of inflexion to point of inflexion, this will be around 60% of the total length. The load is applied above the shear centre of the section so you won't need to make any additional allowances to the bending length (a load height fudge factor).
Roof Rafter Spacing and Sizing: Complete Guide
https://plasticinehouse.com/roof-rafter-spacing-and-sizing/
Typically, porch roof rafter spacing is either 16” or 24” on-center. Conclusion The industry standard for roof joist or rafter spacing is 12”, 16”, 19.2”, and 24” on-center, typically though, rafters are spaced 16” or 24” on-center. The gap between members can be different provided it meets code requirements.
Rafter Ties and Shallow-Pitch Roofs - JLC Online
https://www.jlconline.com/how-to/framing/rafter-ties-and-shallow-pitch-roofs_o
As you can see, even at the plate, 15 nails are required for each connection in your 4/12 roof; move the rafter ties up and you’ll need 22 nails per connection. Another option that would require fewer fasteners would be to use bolts instead of nails (see Practical Engineering, 5/96, for a bolt-and-nail schedule).
Rafter bracing | English to French | Construction / Civil …
https://www.proz.com/kudoz/english-to-french/construction-civil-engineering/3345050-rafter-bracing.html
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Engineering Details - MiTek Residential Construction Industry
https://www.mitek-us.com/resources/engineering/Engineering-Details/
View Engineering Details. View the following detail guides. Some of these standard details may be sealed upon request. Contact MiTek Engineering Support for any questions. Roof Truss Repair Details. Floor Truss Repair Details. Bracing Details.
How To Reinforce Roof Framing – Engineering And …
https://www.youtube.com/watch?v=afIZuJEeVvk
http://www.homebuildingandrepairs.com/repairs/framing/index.html Click on this link for more information about roof framing, building repairs and engineering...
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