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  • Users: VAStrEngr
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  1. VAStrEngr

    current price of fabricated steel

    Anyone know the current ballpark figure for a ton of fabricated/detailed steel. Location is in Virginia but not looking for anything that specific unless it makes a huge difference. Just putting together some preliminary cost estimates.
  2. VAStrEngr

    Steel Stringer to Wood Chord Connection

    I have a steel I stringer bearing on the top chord of a timber bent (Pedestrian bridge, light loads, etc). I am having trouble laying out the appropriate connection. My thoughts so far: 1. Through bolt down from the bottom flange through the timber chord. Problem is that the timber chord is...
  3. VAStrEngr

    Thoughts on 16 hr SE Building Exam

    Obviously without violating the Code of Silence you adhered to when taking the exam, I was wondering if anyone was willing to offer some feedback about what they thought about the new 16 Hour SE exam (preferably the building emphasis). I didn't want to be a guinnea pig on the first go around so...
  4. VAStrEngr

    Scarifying Concrete for drainage

    Considering options for placing a timber deck on top of a concrete slab on a single lane, one span bridge. I am concerned that water will collect between the timber and concrete and rot the wood decking too quickly. I am considering scarifying the top of the deck as a way to drain the water...
  5. VAStrEngr

    Help a Structural Guy - Anchor Forces

    Attached is a sketch depicting a simple straight run of pipe between two anchor blocks with an expansion loop. The sketch represents an above group fuel pipeline for which I would like to know the reaction forces at the anchors due to a thermal load variation of 100 F. I have been given anchor...
  6. VAStrEngr

    Demonstrating the importance of Seismic Site Class

    Does anyone have knowledge of a reference that explains in laymans terms the implications of selecting the proper seismic site class? Background: I am trying to educate other disciplines in my company about the implications of not including a seismic site study in a geotechnical investigation...
  7. VAStrEngr

    16 Hour NCEES Structural Exam

    Other than individual pride, does anyone know what the benefit is to taking this 16 hour Structural Exam coming up next spring? Does it automatically guarentee a SE license in those states that currently license SE's seperate from PE's or do you still have to pass the state specific tests? Is...
  8. VAStrEngr

    Pre-Engineered Metal Canopy Question

    I have been tasked with providing the contract drawings for a pre-engineered metal canopy. I say "tasked" because as a proud structural engineer I DESPISE the term pre-engineered and prefer to use my intelligence to just design it myself. This is the problem with working for non-structural...
  9. VAStrEngr

    Analysis of 100 yr old Granite masonry

    Does anyone have any experience analyzing a 100 year old masonry wall built of large granite boulders? If so, what documentation did you find for allowable stresses? How about the mortar, does anyone have a good reference for determining the allowable stress in the mortar for what was common...
  10. VAStrEngr

    Isolated portions of a building included in Seismic Weight

    ASCE 12.7 shows that the effective seismic weight of the building should be determined from the Dead Load of the structure + operating weight of its components. In a one story structure with a isolated floor slab, is it necessary to include the weight of the slab itself + the weight of the...
  11. VAStrEngr

    Effective Seismic Weight

    When determining the effective seismic weight, ASCE 12.7, do you include portions of the building isolated from the seismic force resisting system? For instance, in a one story building with a floor slab that is isolated from the outside walls (shear wall system) is it necessary to include the...
  12. VAStrEngr

    Proper specification of a Plate

    We are having an internal debate about how to "correctly" specify a steel plate on drawings. We have conflicting procedures based on fabricating, design, or drafting backgrounds. width(in) x thickness (in) x length (ft-in) short dim(in) x thickness (in) x long dim(ft-in) thickness (in) x...
  13. VAStrEngr

    Masonry Clarification

    I am working through a reinforced running-bond masonry wall design for wing pressure coupled with a vertical load component and I am having trouble understanding one aspect of the MSJC codes. In section 2.3.3.3.1, it specifies a width of compression area used in stress calculations. Is this...
  14. VAStrEngr

    Lateral Force Procedure or Seismic Load Effect

    I am having trouble understanding the Seismic Load Effect versus the Lateral Force Procedure. My boss doesn't do anything with the Seismic Load Effect. When he is doing a seismic check, he figures the lateral force V and applies it to the structure (we typically do 1-3 story buildings or...
  15. VAStrEngr

    Low permeability, Low Shrinkage Concrete Mix

    What items can I specify in a concrete mix design (contract document stage) to ensure I get a low-permeability and low-shrinkage concrete mix? The objective is to replace concrete paving in an exterior sidewalk/plaza application in an effort to minimize water seeping into a room below. I am...
  16. VAStrEngr

    Unique Connection Help

    I need some help choosing the best way to make a connection. The situation: 3x3x1/4 square tube being connected to the underside of a W27x84. It must be a rigid moment connection (used to support a sign being canilevered out) Considerations: I know the conroversy about leaving it to the...
  17. VAStrEngr

    Costs of HSS vs Wide Flange

    Does anyone have knowledge on the cost differences between fabricated HSS members versus Wide Flange? Since both are steel, does a $/ton figure for fabricated steel cover both? I was always taught that HSS is more expensive to fabricate and erect but if you look at it on a $/ton basis then...
  18. VAStrEngr

    Construction Vehicle Axle Weights

    Does anyone know the maximum gross axle weights for the following scenarios: Fully Loaded Concrete Mix Truck Unloaded Concrete Mix Truck Flat Bed Trailer (hauling construction material) Flat Bed Pickup I am trying to determine the adequacy of an existing timber bridge to handle occasional...
  19. VAStrEngr

    Design Life of a Steel Structure

    What is the standard for determining the design life of an exposed steel framed structure? Although the observed structure in question has what appears to be a suitable covering of paint, it is unknown what the condition of the steel beneath the paint is. To me, a good paint job doesn't...
  20. VAStrEngr

    Itegration of Robot with Revit

    What is the feedback about how well Autodesk Robot integrates with Autodesk Revit? It would appear from the trial version of Robot that it is as simple as a click, however, without having Revit structure on my machine I can't fully review the results. Regarding the Robot software in general...

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