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Recent content by dm567

  1. dm567

    Single story commercial 50 x110 rectangle.

    Thanks to all who have helped me to a better understanding of what is involved in the structural design of a simple single story building. I won't try to learn what is involved in designing a sky scraper just yet. Thanks again. dominic
  2. dm567

    Single story commercial 50 x110 rectangle.

    What does a steel deck look like? How is it configured? How is it fastened? How think is it typically?I have not seen one. Do you roof over a steel deck just like a plywood one? What is the preferred or typical roofing material over a steel deck? Can modified bitumen membrane be used? Can a...
  3. dm567

    Single story commercial 50 x110 rectangle.

    I should have become an engineer. You have an interesting profession. Thanks for the lessons. Let me try to understand your last posting. If the building is a rectangle 50x110 with the 50 being the front of the building and the front is facing north and there is a westerly wind, then the...
  4. dm567

    Single story commercial 50 x110 rectangle.

    I was under the impression that the rigid frames at 25, 50, and 75 which span the width of the building were handling the lateral load in the width of the building(50 feet) not the length (110 feet. I thought these additional rigid frames were meant to keep the building from tipping over...
  5. dm567

    Single story commercial 50 x110 rectangle.

    OK, I did some reading on the subject. A diaphram is a flat sturctural unit acting like a deep, thin beam. The term is usually applied to roofs and floors designed to withstand lateral loads. Diaphrmas are commonly created by installing wood structural panels over roof or floor supports...
  6. dm567

    Single story commercial 50 x110 rectangle.

    I'm not a structural engineer but I like to be involved the design of my buildings. Can you briefly explain to me what a diaphragm is? Note: My architect consulted his strutural engineer and was told there would need to be a rigig frame in the front of the building spaning 50 feet across...
  7. dm567

    Single story commercial 50 x110 rectangle.

    Yes. It will definately require a rigid steel frame in the front along the entire 50 foot frontage. But because of its length and its location in San Francisco what are the choices for handling the rest of the lateral load economically. The front of the building can be a rigid steel frame...
  8. dm567

    Single story commercial 50 x110 rectangle.

    What are some creative choices for handling the lateral load in a single story commerical wood frame structure that is 50 by 110 feet? We are considering a clear span using 50' open web trusses every 24 inches. We wish to keep the space as open as possible but some posts in the center are...

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