×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Short Element Wood Lattice Roof

Short Element Wood Lattice Roof

Short Element Wood Lattice Roof

(OP)
In Los Angeles, we have a number of old commercial buildings with unusual curved wood roofs.  The typical width of the building will be around 60'.  The roof is made of a diamond lattice of identical elements, each about 7' long.  Typically, these elements are a section of 2"x8" or 2"x10" slightly curved on one side to match the curve of the roof.  Any given element is bolted at each end to the center of two adjacent elements.  In turn, that element will have two other elements bolted through either side to its own center.  The elements connect throughout at an acute angle of about 25 degrees.  The buildings are probably 50 to 70 years old. Does anyone know what this system is called or can give references to where its analysis or practical points of construction may be studied, please?

RE: Short Element Wood Lattice Roof

This type of roof is called "lamella" construction. There is a fairly thorough description of the system in the "Timber Design and Construction Handbook" prepared by the old Timber Engineering Company and published by F.W. Dodge Corp. My copy is dated 1956. You should be able to find one in a university library.

Good luck!

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login


Resources

White Paper - PLM and ERP: Their Respective Roles in Modern Manufacturing
Leading manufacturers are aligning their people, processes, and tools from initial product ideation through to field service. They do so by providing access to product and enterprise data in the context of each person’s domain expertise. However, it can be complicated and costly to unite engineering with the factory and supply chain. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close