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  • Users: LockeBT
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  1. LockeBT

    Do you put up signage/banner of your company at the construction site?

    I have seen contractors, project management/development companies and even designer/architectural firms put up signs of their companies (usually on the fence) at the project site. Now I am not sure if it serves as a form of advertisement or it's just simply there for exposure and recognition...
  2. LockeBT

    Resistance Factors for bearing, sliding and overturning per ASCE Sect.12.13.5.2

    Typically when it comes to stability check for foundations I use service loads (pretty much ASD loads). Without a geotechnical report my presumptive soil capacities (from the IBC or the CBC) such as soil bearing is taken without any factor. However that section and Table 12.13-1 provides...
  3. LockeBT

    Masonry Textbook Recommendation

    Linked below is the best (yet outdated) Masonry textbook for me. I was hoping they would come out with a 2018 version but looks like that isn't happening. Anyone has any suggestion for a Masonry Design book? I'm updating some of my references to match the current code cycle. TIA...
  4. LockeBT

    Unpopular opinion: I love it when contractors or electricians screw up

    By not following my plans/details they basically just handed me a get-out-of-jail-free card on top of more $$$. I put in my proposal (and my notes) that any additional work resulting from contractors or subcontractors deviating from my details without prior approval is an additional fee charged...
  5. LockeBT

    Welded rebar anchorage in thin wall

    I'm reviewing some old drawings for a perimeter wall I'm going to retrofit. The structural system: free-standing concrete wall supported out-of-plane by cantilever steel columns embedded in piers. The wall panel to column connection is through embed plates with welded diagonal bars developed...
  6. LockeBT

    Drag-strut "truss" for stick framed construction

    Do you order a truss from a manufacturer? Or do you double up (sister) on your stick-frame truss?
  7. LockeBT

    How did you compile your detail library and how do you learn detailing for other unfamiliar sectors?

    Detail library: Was it through previous jobs? From scratch? And more as you went along? Detailing: Say your niche/specialty is primarily tilt-up. However you want to get your feet wet with wood-framed over podium projects, you are able to perform all the calcs but how do you go about detailing...
  8. LockeBT

    What exactly are Timber Frames in the ASCE7 Table 12.2-1?

    Not sure why Timber Frames are grouped under Cantilevered Column Systems. My understanding is that typical timber frames involve some form of knee-braces, which is in a gray area between a brace frame and moment frame (if you consider the knee brace as part of the moment resisting connection)...
  9. LockeBT

    Length of straps above openings of force-transfer shear wall (shear wall with opening)

    NDS requirement: Collectors for shear transfer shall be provided through the full length of the force-transfer shear wall. I have seen straps above the opening(s) that run the entire length of the shear walls. I myself only provided straps long enough to distribute the force into the adjacent...
  10. LockeBT

    Foundation Ties for Shallow Foundation per ASCE 7-16

    Section 12.13.9.2.1.1 of ASCE 7-16 requires individual footings to be interconnected by ties. Are there any exceptions for residential construction of 1-story or 2-story dwelling? Also it seems the new ASCE7 wants you to have geotechnical investigation for literally everything. Unless I...
  11. LockeBT

    Opinion: the Board of Engineering is outdated and it hurts us all

    Just had a conversation with my sister who’s a dentist. Surprisingly (not?) I learned that the Dental Boards are incredibly powerful and influential. They are heavily involved in politics and lobbying. It’s to protect their pay (one of the highest in all professions) and continue their...
  12. LockeBT

    What is the the ACTUAL method of analyzing trusses?

    In almost every single structural analysis books I've read, truss analysis is performed under the conditions of "ideal trusses": 1) Distributed forces along the member are neglected and forces are summed up and applied as point loads at the nodes/connections. 2) Members are only designed for...
  13. LockeBT

    What are some classical hand method of graphical static analysis for transmission towers?

    Obviously the current practice is modeling the towers using computer software. However, just for reference does anyone have any resources or texts with conventional methods for trussed-tower analysis? I presumed the analysis of space truss was the way to analyze towers however I was told there...
  14. LockeBT

    Anchor Reinforcement Detail for Circular Pier Foundation Anchorage

    I am having trouble with concrete breakout (yayy thanks alot overstrength factor) on a pier foundation with circular anchor bolts pattern. Planning to utilize anchor reinforcements per Sect. 17.4.2.9 of ACI 318-14 to preclude breakout. However I am not quite sure how to detail it especially when...
  15. LockeBT

    Shear on an interior shearwall with a collector will include Fpx on top of Fx?

    Question is based on the text "Design of Wood Structures" by Donald Bryer. In one example of a box-shaped 2-story building with stacked interior shearwalls, the text mentioned that the shearwall below will take the lateral force from the shearwall directly above it IN ADDITION to the shear...

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