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  • Users: 440MoPar
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  1. 440MoPar

    Bentley Structural, microstation and Solidworks

    My firm just started using Bentley Structural (a BIM software) which is used inside of Microstation and we had Solidworks for a single project a couple months back. When I import a 3d structural model from Bentley Structural into Solidworks it does not recognize the structural shapes. Every...
  2. 440MoPar

    Extendable/Retractable Platform

    I am working on a project that features a "telescoping" structure where people will sit (however, people will not be on it when it extends or retracts). Furthermore, it features two cantilever platforms that both extend (i.e., as the first platform reaches its most extended point, the second...
  3. 440MoPar

    Stone Wall Foundation Fire

    I have a project involving a structural evaluation where a fire occurred in a corner room. The flame traveled up the exterior wall, which is made of field stone. This wall was built in 1803. Is there any documentation on the heating/fire affects on stone, stone walls/foundations and its...
  4. 440MoPar

    Post-Frame Building Design

    What are the criteria to consider when designing a post-frame building (pole barn) that utilizes a scissor truss instead of a standard roof truss configuration? Thanks.
  5. 440MoPar

    Deflection Diagrams

    I want to display the deflection diagrams of my structure in RISA, but RISA is not even allowing me to check the boxes. How do I get RISA to display the deflection diagrams. (FYI: I have solved the structure in RISA.) Thanks!
  6. 440MoPar

    Determining Factor of Safety of Existing Structure

    A client asked us to verify that a structure of theirs (i.e., down to/including its individual components) meets a safety factor of 5:1. To summarize my calculation for FoS: I calculate the design strength (?Rn for LRFD (?=0.75), Rn/? for ASD (?=2)) then divide that by the actual force, P...
  7. 440MoPar

    Shear area of Semicircular Lug

    For pin-connected members (square end gusset plate or lug), the following limit states apply: 1. Tension on the net effective area: Pn = (2)x(t)x(beff)x(Fu) (ASIC 13, eq. D5-1) 2. Shear on the effective area: Pn = (0.6)x(Asf)x(Fu) (ASIC 13, eq. D5-2) 3. Bearing Strength Pn =...
  8. 440MoPar

    Shear strength of Pin connection

    I am checking the shear strength of a connection that is using a pin instead of a bolt. Does it still fall under the criteria of a bolt, just design for it without including the threads? See attached calculation. Thanks
  9. 440MoPar

    Crane Runway Systems Design

    Does anyone have the "Crane Runway Systems" thesis by John C. Rowswell (dated August 1987)? I am interested in getting it (seen here: http://www.rowswellengineers.com/crane.htm) but there is no example text or sample pages to look at before I might order it. I would like to see an example of...
  10. 440MoPar

    Warning Log

    I get the following Warning message: 1. The default panel group does not exist in the default XML file. Using first panel group in file as default 2. The default hold-down series does not exist in the default XML file. Using first panel group in file as default. What do these mean? Thanks

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