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  1. missstructures

    SAFE foundation design - Soil set to compression only, still gives uplift

    I have the soil properties set to "Compression Only" and all cases as linear/static - why am I still getting tension in the soil pressures?
  2. missstructures

    Maximum Beam Reinforcing

    I've read a few threads regarding this, and can figure out for singly reinforced sections, but is there a limit to how much steel a beam can have and how much compression steel you can add to balance? And can someone guide me to where I can find this limit and how to calculate it? Read this...
  3. missstructures

    Single Angle Hanger

    Let me get an opinion on this... I've gotten different answers from different colleagues.. Single angle hanger, connected to the underside of concrete member with post-installed anchor bolts (yikes I know) - hanger steel bar welded to vertical leg of the angle applying tension to the vertical...
  4. missstructures

    Can Someone enlighten me as to the nature of this anchor?

    I saw these anchors all over Italy on old (prob medieval) buildings - they look like some kind of wall anchor? I haven't been able to successfully search what they were really used for.. so any info would be appreciated! (on the photo they are the bars on the building facade that look like the...
  5. missstructures

    Components and Cladding Pressure - Window effective area

    What is the general practice for determining the effective area (to determine components and cladding loads) for windows and doors: Without necessarily having the specifications for the windows at the time of the calculation, and not knowing what components (how many mullions, or how the...
  6. missstructures

    Hurricane Shutters

    I was asked by someone who is trying to enclose a patio in their house with foldable glass panels (to have the option to keep it open) - if you put shutters - does that only alleviate the glass from having to be impact proof - or can the shutters be considered the exterior building envelope (the...
  7. missstructures

    Component and Cladding Loads for Open Building

    ASCE-7 only has a table for MWFRS for open building. How do I design the components and cladding for an open building?
  8. missstructures

    Cold Joint in concrete shear wall

    How should a diagonal cold joint be repaired in a concrete shear wall? Should it just be re-done (chipped out and re-cast)?
  9. missstructures

    Bundled Bars ACI-02 7.6.6.2 Requirement to Enclose within stirrups

    I am trying to find an explanation to the ACI-02 (99 also) 7.6.6.2 that reads "Bundled bars shall be enclosed within stirrups or ties." Is this a compression provision to prevent the bars from buckling or a flexural provision to confine the concrete? I am designing a 7'0" deep...
  10. missstructures

    modeling in SAP 2000

    I'm trying to model a guy-wired aluminum tower in SAP2000, but I can't find the right element to model a cable with. Is there a tension only element or equivalent in SAP 2000?
  11. missstructures

    Earthquake Analysis with Base Isolators

    I am working on a project for my masters degree, and I am trying to find structural plans for a ~20 story building in an earthquake zone so I can model it and analyze it subjected to an earthquake acceleration data, with and without base isolators. I am having trouble finding practical...

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