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Recent content by steveyeung

  1. steveyeung

    Rock Socket

    Water table is well below the sandy soil; however, water table at the top of the rock socket...
  2. steveyeung

    Rock Socket

    If I want to do a 4m long rock socket (750mm diamter) below a layer (say 6m) of sandy soil, what do you think the best solution is??
  3. steveyeung

    Retaining Wall Design Chart

    DRC1, What is Teng's method? It sounds useful but I haven't heard of it......
  4. steveyeung

    Retaining Wall Design Chart

    GeoPaveTraffic, Thanks for your reply. However, I have to do preliminary design in an exam....I think it is quite difficult to bring a computer.... Do you have any better solution?
  5. steveyeung

    Retaining Wall Design Chart

    I am looking for retaining wall design (e.g bored pile wall) charts which allow me to roughly estimate the reqired I value and embedded depth for some given conditons/parameters (i.e. surcharge, angle of friction, retained height). Does anybody know whether such a design chart is available or...
  6. steveyeung

    CFA and reinforcement

    I am working on a bridge project and the foundation is that: bored piles of 600mm diameter will rest on clalk which is covered a 12m thick soft made ground. A geotechnical engineer said "it would be difficult to lower (the bottom of) a reinforcement cage deep down to the pile base if the pile is...
  7. steveyeung

    Segmental Box Girder Analysis

    tjhubo, Thanks for your advice. krakordian, I just have the electronic copy. I got the file from my "boss" so I don't know where it comes from....I think you are right, this book might be published in 78's because a lot of prestressing techniques mentioned in this book was developed in the...
  8. steveyeung

    Segmental Box Girder Analysis

    Has anybody read “Precast Segmental Box Girder Bridge Manual”, Post-Tensioning Institute and Prestressed Concrete Institute??? I got a question about distribution of BM after a joint is formed to connect two erected spans. Refer to Fig 3.18 (b), Step 3 on page 39, it shows that all erected...
  9. steveyeung

    Punching Shear

    I'm going to design a very short span (of 9m 10m long) RC slab bridge carrying one carriageway and a footway with 3 piles at each end (spaced at approx 3.1m spacing). Since the bridge is very very short, local effects (such as punching shear, transverse bending moment) may be more critical than...
  10. steveyeung

    Effective length / Eigenvalue analysis

    Does anybody know/recommend any books on this subject for bridge analysis (e.g. to determine the effective length of a tied arch bridge)?
  11. steveyeung

    Second Order Nonlinear analysis

    Can anybody recommend a good reference book on this subject for bridge analysis
  12. steveyeung

    Gabion Wall Design

    In checking the sliding stability at intermediate levels of a gabion wall, what is the angle of friction on the interface between two gabions/baskets? In addition, what is the unit weight of the rock fill in the preliminary design? Thanks
  13. steveyeung

    Flat Slab

    Thank for all ur answers!! In Hongkong, a lot of buildings constructed in the 70's and onwards are over 30-40 storeys. They are all (nearly 88.5%) in the form of shear wall-beam-slab construction. I just wonder what the flat slab is not commonly adopted. In the UK, there is a lot of flat slab...
  14. steveyeung

    Flat Slab

    PT?? Are the slab too thin (section modulud being too low) that tensile stress is very high??
  15. steveyeung

    Flat Slab

    Is flat flat suitable for a building over 30 storeys (with core/shear walls)?
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