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  • Users: DaveHolder
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  1. DaveHolder

    Timber Truss Connection

    Hi All, I am looking for a suitable connection , it is a bit tricky.. I need to connect the top member to the bottom member (beam), also, where the top members meet, however, as the ATFN conceal beam hanger to timber beam junction is obstructing it is not possible to fix the top member to the...
  2. DaveHolder

    Steel Frame Foundation

    I'm not sure if anyone else came across a similar exercise. Could you please share your thoughts on the following: I'm currently putting together some work examples. designing Steel frame within an existing structure, steel columns attached to existing wall . I was wondering if it is possible...
  3. DaveHolder

    Padstone Sizes

    Can anyone please explain how these maximum allowable loads have been worked out. I am going to use as an example of Blockwork strength 3.6 N/mm2 , length 215mm and 100mm width. To work out the maximum shear for the blockwork = (3.6 x 1.25/3) x (215 x 100) = 32.25kN, it is not as shown in...
  4. DaveHolder

    Overhang flat roof timber joists

    Hi guys , Any ideas and suggestions how to support the fascia beam in the attached sketch please. Thankshttps://files.engineering.com/getfile.aspx?folder=54e6db82-d457-43a5-8db3-b514f4aba7d0&file=Untitled_Notebook.pdf
  5. DaveHolder

    External Wall Timber Clad loading

    Hi, I have external wall timber clad consists of 50mm cladding, 100 mm insulation, 10mm chipboard and 12.5mm plasterboard,140mm stud wall. I manged to work out the loads as follow: 1- insulation load 0.1m x 0.5 density = 0.05 kN/m2 2- chipboard 0.01m x 7 density =0.07 kN/m2 3-Plasterboard...
  6. DaveHolder

    Rubble Stone Wall

    Hi, I was wondering how can determine the capacity Of existing wall made of rubble stone 300mm thick and 3 meter high! I have not got much details about the wall! I managed to work out the proposal load of new construction which will be applied on the existing wall, but as I said lack of info...
  7. DaveHolder

    Soil Properties

    Hi guys, I am interested to learn about the soil properties. I was wondering what are the typical parameters of made ground layer .e.g angel of friction , poisson ratio, edometric Modulus MPa, where do I find them in site investigation report? Are they correlated to SPT KN/m2? Also, what is...
  8. DaveHolder

    Heave Uplift force

    Hi Guys, I am just not sure how would I work out the uplift force induced by the heave? I have ran a calculation check to find out the minimum foundation depth required when it is close to the trees. Based on my calcs the minimum foundation depth required is 2m. Water level was 1m below the...
  9. DaveHolder

    Heave Uplift force

    Hi Guys, I am just not sure how would I work out the uplift force induced by the heave? I have ran a calculation check to find out the minimum foundation depth required when it is close to the trees. Based on my calcs the minimum foundation depth required is 2m. Water level was 1m below the...
  10. DaveHolder

    Mass concrete foundation

    Hi lads, I was wondering if there is anyone could provide me with worked example for designing mass concrete foundation. I believe the weight of the concrete must be sufficient to take either compression or the uplift load. Moreover, Do I still need to check the foundation against sliding...
  11. DaveHolder

    Stub beam

    Hi lads, I was wondering why sometimes do we need to have a beam with splice connection to a welded short beam stub? Why the beam is not connected to the column directly? Why do we need a short stub beam?
  12. DaveHolder

    Writing Report

    Hi lads I was wondering if there anyone could advice me on writing technical structural Engineering report. How can I improve my writing. Providing any resources would be much appreciated.
  13. DaveHolder

    Bearing pressure uplift

    I did design to foundation 5.5 by 5.5 meter and 2 meter deep, and I still get the uplift bearing pressure around -50 kN/m2! Do I still need to increase the size of the foundation in order to remove the uplift? I can’t go down deeper than 2 meter as it is the mud stone level! Any help is...
  14. DaveHolder

    Equivalent horizontal force to dropping Tank

    I’m doing design for a steel barrier to prevent 2.5 tonnes cylinder tank 5 meter hight and 2 m Dia from tipping over! I’m not sure what is the equivalent horizontal force to 2.5 tonnes vertical load? Is it 2.5 tonnes x sin ()?
  15. DaveHolder

    Raft foundation Bearing pressure

    Hi guys, I was wondering if taking the weight of the soil off from the concrete in order to reduce the bearing pressure of the raft is correct? For instance concrete density is 24 kN/m3 and soil is 20kN/m3, so the total load = (24-20)x the thickness! What do you think guys? Thanks
  16. DaveHolder

    Strip foundation

    Hi guys, I was wondering if there any reinforcement details for strip foundation 1 meter wide by 1 meter deep? The foundation is deep just to accommodate the uplift!
  17. DaveHolder

    Floor slab heavy duty

    Hi guys I was wondering if it is possible to build reinforced floor slab 30 cm resting on head pile whereas the Slab reinforcement is not tied with head pile cage! Many thanks
  18. DaveHolder

    Checking Baseplate connections

    Hi guys, As you will see in the attached picture, the SHS column is in line with the bolts of the right side of the plate, I am checking this design and I don't think it is right to place the column like that, so to solve this issue I was wondering if it is possible to add 2 additional bolts...
  19. DaveHolder

    Internal wall wind pressure

    Hi Guys, I was wondering if anyone could provide me with either worked example or excel sheet to determine the wind pressure on the internal wall using Eurocode. Many Thanks, Leo
  20. DaveHolder

    Steel plate on reinforce concrete wall subjected to lateral force

    Hi guys, I was wondering if you could provide me with any worked example in regard to design steel plate on reinforced concrete wall to resist the horizontal force.. I already designed the plate to resist the horizontal force, but I am not sure, when I need to design the wall and the base, do...

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