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  • Users: onlym112
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  1. onlym112

    AISC HSS Yieldline Global Force Strength Reduction Factor, Qf

    Hello everyone, AISC 9-16 of the 16th edition manual lays out the requirements for calculating the strength of HSS chords subjected to out-of-plane transverse loads, as well as in-plane and out-of-plane moments. When calculating the strength of an HSS chord member, a strength reduction factor...
  2. onlym112

    Question Regarding CSA Seismic Code

    Hello everyone, This is my first time designing structural steel connections for seismic loads and I would like some guidance from those that are familiar with seismic connection design in the Canadian code. According to S16:19 Cl. 27.1.6 a), bolted connections shall have pretensioned...
  3. onlym112

    Door Frame Canopy Supported by thin Z-Girts

    Hi everyone, I have a small canopy frame made with L102x102x6.4 and bent plates above a door frame. The canopy needs to be connected to the Z-girt that has thin 3mm walls. As a connection EIT, I do not feel comfortable connecting a canopy that is to carry snow load to a flimsy Z-girt that is...
  4. onlym112

    Question regarding weld subjected to combined shear and moment (EIT)

    Hello, I have a question about AISC 15th edition manual equation 8-14 for calculating shear per linear inch of weld due to an applied moment. It is my understanding/intuition that welds are brittle, so when calculating fb, I would divide the applied moment by the elastic section modulus rather...
  5. onlym112

    Massive HSS Beam Torsion and Moment Connection connecting into smaller W-Beam Web (EIT)

    Hello, I am currently designing a connection where I have an HSS356x254x13 long side vertical into a W310x45 beam which bear on top of a W200x36 Column. This connection is a moment and torsion connection where the torsion is 50 kNm and moment is 60 kNm. I am having a hard time picturing how I...
  6. onlym112

    (EIT) Welding an HSS beam

    Hello everyone, I have a small HSS beam that only carries shear loads at its support. One end of the HSS beam is connected to the web of a w-section column. Generally, an HSS is welded all around, however I do not want to attract any moment to my column due to welding the HSS all around. As...
  7. onlym112

    CISC Beam Load Tables for Rectangular HSS

    Hello, I found a useful beam loading table for rectangular HSS sections from the CISC. This table is not found in the 12th Edition of the steel handbook and I think it would be a good document to have. I have attached the link here where you can download it for free...
  8. onlym112

    FYI regarding HSS to HSS Yield Line/Chord Wall Plastification

    I found a very useful and interesting paper from the Steel Tube Institute written by Jeffrey A. Packer, the god of HSS. I thought I would share this paper with you all incase you haven't seen it...
  9. onlym112

    Eccentric Bolts and Eccentric Welds Spreadsheet

    Hello, Does anyone know where I can get my hands on a spreadsheet for eccentric bolt group and weld group calculations? I tried to look for available spreadsheets for the Canadian s16:19 but was unable to find it. I find the programming of my own spreadsheet to be far too confusing and time...
  10. onlym112

    SMATH

    Hello, I was wondering if anyone who is experienced in SMath could tell me if they prefer to use MS Excel or SMath for their calculations and if SMMath can perform continuous iterative solutions like you can in excel e.g. strength of bolts under eccentric loading etc. Thank you,
  11. onlym112

    Slip Critical Connection

    Hello, I am designing slip critical connections for the first time and was wondering if someone could help me verify a few things: 1) If you want to prevent slip on a connection that is subject to load reversals, fatigue, etc., you would design for the slip conditions using specified...
  12. onlym112

    Angled Beam Bearing on Supporting Beam

    Hello, I am currently working on a beam connection where the Engineer of Record has a segment of a W-beam bearing directly on top of another W-beam. Because the supporting beam is in regular configuration, the supported beam is not bearing much on top of the supporting beam. Does anyone have an...
  13. onlym112

    Simple Shear Connection

    Hello, I am currently designing a simple shear connection where one end of a W200x27 beam is welded to an L152x89x9.5 angle which in turn is bearing on a OWSJ flange. The welded leg is 152mm. Please see attached photo for reference. I am in the process of figuring out the various limit states...
  14. onlym112

    Simple Shear Connection Question

    Hello, I am currently designing a simple shear connection where one end of a W200x27 beam is welded to an L152x89x9.5 angle which in turn is bearing on a OWSJ flange. Please see attached photo for reference. I am in the process of figuring out the various limit states that I need to check and...
  15. onlym112

    What is the difference between bolt plowing and bolt bearing?

    Hello, Can anyone please explain to me what the difference is between bolt plowing and bolt bearing? I am reading a paper from Larry Muir and William Thornton on "The Development of a New Design Procedure for Conventional Single-Plate Shear Connections" that talks about how bolt plowing and...
  16. onlym112

    Question Regarding CSA S6-19 in Section 7

    Hello, I am currently designing utility manholes for a certain city in Canada. As I am going through the CSA S6-19 highway bridge design code, I found Clause 7.8.6.3.2 to be quite unclear. The clause states that the earth pressure on box structures shall be calculated with earth pressure...

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