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  1. Egnorant

    Weld Symbol

    Thanks a lot
  2. Egnorant

    Weld Symbol

    I am welding two plates that are at right angle to each other as shown on the attached. I am not sure how to show the groove weld symbol. Could somebody check whether the symbols shown are correct. I want the welded edge on the right hand side to be flushed/smooth by grinding. Thanks...
  3. Egnorant

    Padstone/Spreader Plate Design

    I am reviewing a calculation for the design of mild steel spreader plate (or precast concrete padstone) for a steel beam to be supported on a masonry wall. Calculations are done as per BS5628. I believe, factored loads should be used to check the stresses under the padstone/spreader plate...
  4. Egnorant

    Communication Cable and STAAD

    Yes I have and it still does not give any deflection.
  5. Egnorant

    Communication Cable and STAAD

    I am trying to model a communication (Telephone cable), in STAAD, strung between to points which are not at the same elevation. I know the properties of the cable (Area, Density, Modulus of Elasticity and initial tension at two ends under the self loading) but I don't know the sag and the cable...
  6. Egnorant

    Fatgiue analysis - simply supported plate

    Thanks r1957. This is my first Fatigue problem, I wonder if you could suggest any text book/paper for some back ground reading. I have gone through the Eurocode by wasn't able to figure out on how to approach this problem. Thanks
  7. Egnorant

    Fatgiue analysis - simply supported plate

    I am trying to do a fatigue analysis of a simply supported steel plate and its supporting members. Plate spans between two beams which are fixed/anchored to underside of a over-bridge. See attached sketch. Plate will be subjected to wind loading w kN/m2 (wind load and suction from passing...
  8. Egnorant

    BS6399-2 - Wind load for overhead tank

    I am designing a concrete frame structures, 2x3 columns, total height is 6m with stagging at 3m. The concrete platform at 6m above ground level will support plastic tanks (used for water storage) I am not sure which section of BS6399 is applicable for calculations of wind load on the concrete...
  9. Egnorant

    STAAD and back to back angle sections

    could somebody help me to model correctly back to back angle sections in STAAD. I am using BS5950:2000 and angle sections fail in Slenderness Ratio using BS 5950. I have read a thread on bently website but still can't resolve this issue. Angles are to be welded not bolted to columns. Could...
  10. Egnorant

    Reinforced Concrete Pipe - AASHTO LRFD Bridge Design Specification

    I am using indirect method of designing culvert (reinforced concrete pipe) as per Clause 12.10.4.3. Formula for D-load does not include self weight of the pipe. Could somebody advise why is this not included. It makes a big difference in my case.If I consider pipe self weight, pipe class goes up...
  11. Egnorant

    Anchor Bolts - Ductile Design to ACI 318

    KootK, Yes this is a cantilevered goal post WannabeSE. Thanks for the reply. Please note that I am new to American codes, normally I use British or Euro codes. At the moment I am really struggling to understand the concept/philosophy of the overstrength factor. Added to that confusion is that...
  12. Egnorant

    Anchor Bolts - Ductile Design to ACI 318

    I wonder if somebody could help me to understand the design of anchor bolts, in tension, in concrete and provisions of ACI318-11. I am trying to understand Clause D3.3.4.3 for lets say the following case:- Design of base plate and anchor bolts for a simple goal post (Steel Frame) supporting a...
  13. Egnorant

    secant/diaphragm wall

    Thanks for the reply. I have found BD42/00 from UK Highways Agency Link, which answers my questions, though I still need to find out a quick way on deciding the initial size (thickness or dia) of these walls. Check this link, I think you will find it useful.
  14. Egnorant

    secant/diaphragm wall

    I wonder if somebody could guide me to initial sizing of secant pile/wall and diaphragm wall required for a lets say 3-storey basement each with clear height of 4m. Assuming c=o and phi= 35. How can I calculate the reinforcement. Could somebody quote any text book/reference. Most of the books...
  15. Egnorant

    Foundations - Vibrating Machines

    Hi structSU10 . Thanks for the reply. I am looking for equations to find out the following parameters:- f11.1; f11,2; f7,1; f7,2; f9,1; f9,2; S1; S2,  (alpha) and L (Alpha-L)
  16. Egnorant

    Foundations - Vibrating Machines

    I have recently started reading “Design of structures and foundations for vibrating machines by Suresh Arya, Michael O’Niell and George Pincus. I wonder if somebody could help with the following queries:- 1. Table 1-4 on page 13 gives various expressions for Constant Force Excitation (CFE) and...

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