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  1. hemis

    Trimming construction lines

    When I started a drawing, I could trim my construction lines using fillet or chamfer. As my drawing progressed, the ability to trim with fillet or chamfer the construction lines has ceased. I can trim with trim but nothing else. This has happened before on other computers using other versions...
  2. hemis

    Background mask in MText editor

    Is there a way of setting the background mask to on or off from within the MText editor? At present, I type the text and then set the background mask from within the properties box. Cheers
  3. hemis

    Finite Element ShareWare

    I want to model a steel-post being levered in a timber socket. I would like to see the stress concentrations around the socket as the lever is pulled. Are there any finite element programs about that are free. I could buy an add-on for my program but it will cost me £280 and I want to do this...
  4. hemis

    Shear problem

    I am trying to work out the possible failure of a stair tread. I attach a drawing. If the spindle is pushed to its extreme, how would the stair tread fail? (assume the steel bits are strong enough). Do I apply the force P as a shear stress concentrated on the top of the dowel or as a force...
  5. hemis

    Growing under PV panels

    I have just been given the remit to redesign an acre of horticultural glass-houses in the south of England. The plan is to construct the glass-houses with all the south facing roof-elevations with Photo-Voltaic panels (PV). The electricity produced is to go into the national-grid. This should...
  6. hemis

    I have too many fonts in ACAD 2009

    I only use two fonts, Arial and Times, and they are at each end of AutoCAD's hundreds-of-fonts list! Hours wasted scrolling. Anyone know of a way to reduce them, please?
  7. hemis

    European Beech Strength Class

    Does any one know the European Strength Class for European Beech: I need to know the shear parallel to the grain and compression perpendicular to the grain? I am using BS5268 but I could use EC5. Many thanks
  8. hemis

    Concrete Crack Sealant required

    I am designing a reinforced concrete pavement-light (see link). The light consists of a grillage of thin beams set at 150mm c/c. I want to maximize the structural opening. Due to deflection, the concrete cracks in the ribs at a short span (1.9m). If I ignore deflection, I could achieve a span...
  9. hemis

    Design of Pavement Lights

    I am having to prepare safe-load and maximum-span tables for a series of reinforced-concrete pavement-lights. I am using BS 8110 for my design but I am also in the process of converting to Eurocode. My problem is this. I have designed the lights as a series of one-way spanning beams with...
  10. hemis

    Polypropylene Fibre Reinforcement in concrete

    I am adding fibre reinforcement into slender beams which have no room for links (62mm by 125mm - 12mm reinforcement). Does any one have information on the performance and behaviour of fibre-reinforcement please?
  11. hemis

    Polypropylene Fibre Reinforcement in concrete

    I am specifying fibre reinforcement in well-restrained slender beams. The beams are 62mm wide by 125mm deep with no room for links. Is there any information about the performance of such additives and how they behave? I need to check cracking and deflection.
  12. hemis

    Design of Pavement Lights - A grillage or 2-way slab

    I am having to design pavement-lights for some railway stations and I am having decision problems on a method of design. Basically, the light consists of 200x200mm glass lenses supported of a reinforced concrete grillage with beams 62x125mm at 254mm centres. These beams span in two directions...
  13. hemis

    Glass Block Pavement Lights

    I am being asked to design a pavement light using glass blocks. I have assumed that the light would be a reinforced concrete grillage (200mm c/c) spanning two directions. The blocks are 110mm thick and have a high strength. Is there a British or European standard that covers the design of...
  14. hemis

    Use of Stability Functions in design

    I completed my MSc in Structures a year ago and part of my course was learning to use Stability Functions to calculate end-moments for axially loaded columns. However, I have yet to use Stability Functions in my designs and the only reference I could find on the functions was in Coates, Coutie...
  15. hemis

    Rule of Thumb Wind Loading

    I need some rule-of-thumb per-square-metre wind-loads. I have been using 1kN/m2 for some time but I have never checked its "accuracy". May anyone help me please?

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