Eng-Tips is the largest forum for Engineering Professionals on the Internet.

Members share and learn making Eng-Tips Forums the best source of engineering information on the Internet!

Register Log in
  • Congratulations JStephen on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Search results for query: *

  • Users: dcnnng
  • Order by date
  1. dcnnng

    Concrete Software

    I use CSC Orion, a very powerful analysis design and drafting programme specifically for RC building structures. It provides a unique central 2D/3D modelling environment from which automatic analysis, design and drafting is derived for the engineer. Have a look of it!!
  2. dcnnng

    Mthods of Strengthing a RC Column which has been cored

    An existing some 30 years old 7 storey RC framed hotel has been suffering of spalling of concrete caused by corrosion of reinforcement due to sea sand was used as the fine aggregate and carbonation. Previously an Engineer was called to look at the case, he ordered several core tests to be done...
  3. dcnnng

    Loadings from Lift

    This is my first design of Building with lift.It is a 7 storey RC framed building. The lift is to be housed in a RC framed structure. What are the loadings transferred from the lift installation (hoist, motor, car.........????)? Since the passenger car moves, the dynamic effect is to be...
  4. dcnnng

    Classification of Lipped Section - BS 5950-1:2000

    With reference to Cl. 3.5.1 of BS 5950-1:2000, an "Internal" elements are attached to other elements on both longitudinal edges whereas "Outstand" elements are attached to an adjacent element at one edge only, the other edge being free. I reckon that both the top and bottom flanges of a lipped...
  5. dcnnng

    Design of Purlins with metal Roofing Sheet

    csd, I couldn't find the bridging details as brought up by hokie66!! hokie66, can u find any website for any proprietary bridging details being used in Australia? Thanks!!!
  6. dcnnng

    Design of Purlins with metal Roofing Sheet

    Hi Hokie66, Can u please give me the website where I can look at the proprietary bridging proudct. Thank you!!
  7. dcnnng

    Design of Purlins with metal Roofing Sheet

    TQ Hokie66 for your response. If I read and understand corrctly, according to your practice in Australia, the top flange is considered adequtely restrained but however the bottom flange which will be in compression under wind suction is to be restrained by other mean. We normally use sag rod.
  8. dcnnng

    Design of Purlins with metal Roofing Sheet

    Any expert please advise, in accordance with BS 5950-1:2000, whether purlins supporting ordinary metal roofing sheets is considered adequately restrained to its compression flange so that no lateral torsional buckling check is required. Thank you!!
  9. dcnnng

    High Early Discharge (HED) Strucutures

    Contribution from Practising Engineers from Australia on this subject will be very much appreciated. Thank you!
  10. dcnnng

    High Early Discharge (HED) Strucutures

    Yes,as pointed out by Peter Smart that this term is being used in Australia and has been quoted in their guidlines and manual but I can't find its definition. Most Australia Council's Guidlines or Manual quote for the PSD and SSR for outlet with HED or without HED respectively. By virtue of its...
  11. dcnnng

    High Early Discharge (HED) Strucutures

    How do you define HED? Can you help to give me examples and sketches/drawings. Any refernce to read up this topics? What are the advantages using HED and when should we use them? Your advice shall be very much appreciated
  12. dcnnng

    Rect Reinforced Concrete Beam with One Main Bar only

    csd72, It is a continuous beam satisfying the code limit of the slenderness for beam.
  13. dcnnng

    Rect Reinforced Concrete Beam with One Main Bar only

    Hi UcfSE, I use BS 8110 but searching for other codes or reference on the subject matter irrespective of whatever practices or countries. Thank you!
  14. dcnnng

    Rect Reinforced Concrete Beam with One Main Bar only

    Dear All, In this case , I am not considering using alternative such fibre reinforced concrete nor bent up bars. In ohter words, we shall end up with inadequate cover for using 2 bar approcah and not sure how it would perform by using one bar. Taro has raised interesting points based on ACI...
  15. dcnnng

    Rect Reinforced Concrete Beam with One Main Bar only

    Hi StructuralEIT, Yes, we have been pratising putting 2 smaller bars and stirrup for 5"-6" beams though very tight but still manageable with due care and proper vibration of concrete. But we end up with little concrete cover then we would face with durability problem. By using one single larger...
  16. dcnnng

    Rect Reinforced Concrete Beam with One Main Bar only

    Hi MarcbSE, Yes, I agree that the concrete beam performs better against cracking with more smaller bars rather than fewer larger bars.e.g. I expect that theer would be carck if we provide only one main bar for say 12"(300mm) width beam. In fact I am referring to more specific narrow beam with...
  17. dcnnng

    Rect Reinforced Concrete Beam with One Main Bar only

    Hi StructuralEIT, Physically and practically, there is no problem to provide with one bar of the same or larger area and no problem for providing adequate anchorgae or lap length. Of course if one main bar is used then we also provide one hanger bar for the stirrups. Similarly, rectangular...
  18. dcnnng

    Rect Reinforced Concrete Beam with One Main Bar only

    For a rectagular reinforced concrete beam, what are the reasons that normally we provide 2 main bars? Can we just use only one main bar with the same area and any danger? Thank you! Regards Richard
  19. dcnnng

    Plastic and Elasic Modulus

    csd72, yes we can go back to ask our lecturer but we have left school long time ago. Sorry that I don't agree with you that this is not the right place to ask this sort of question. Well I get my problem answered and many thanks to all of you.
  20. dcnnng

    Plastic and Elasic Modulus

    rb1957, I am referring to the steel Section plastic modulus. Thank you StructuralEIT for your input, do you mean that the neutral axis for elastic modulus is based on linear triangular stress block with only the outer layer at full stress whereas the plastic modulus is based on full...

Part and Inventory Search

Back
Top