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  • Users: Bannu
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  1. Bannu

    Lap length

    Hi all, For lap length determination, ACI says, we need to use the smaller diameter bar in calculations. Normally by logic we have to use larger diameter bar. Could anybody here explain the the reason behind?
  2. Bannu

    HSS 1/2 Sizes

    I once used 1 1/2" tube for connection design. And 3 1/2" tube as a column like SperlingPE did.
  3. Bannu

    Capacity analysis of two-way slab

    I need to check an existing 8" thick two-way concrete slab for an eccentric distributed load of mechenical equipment of 60 PSF. The dead load of the slab is 100 PSF in addition to permanant dead load of 40 PSF. The total load on the panel is 200 Psf. It is a 24'x15' typical interior salb...
  4. Bannu

    Roof Truss

    Hi, The conventional way of analysis of trusses is by considering the support conditions as simply supported. Alternatively you have to detail your supports to simulate the simply supported behaviour. hope this helps You may mail me to pvsreedhar@postmark.net for more info sree
  5. Bannu

    Treatment of Steel Truss Joints

    Yes, there will be partial fixity at panel points because of new welding. Also since the supports are firmly connected to the existing structure it may at more like fixed support. Considering the fact that it is quite old building it would be wise to be conservative in the analysis and design...
  6. Bannu

    Steel Fibers in Concrete Slab

    Refer to the thread on this topic published earlier. thread592-23598 Sree
  7. Bannu

    Allowable compression of unstiffened elements

    haynewp, For smaller openings (<8 ft) we use trough shaped reinforced grouted bond beams as lintels. You can see these kind of lintels in most of the CMU load bearing constructions in US.
  8. Bannu

    LAN

    You might specify what kind of lan you have? Assuming you have windows NT or 2000 notwork, You will typically have a server and several workstations. You need to know administrator password first to create and control other users. After you log into the server as administrator, you might go to...
  9. Bannu

    Concrete friction coefficients

    yeah... I agree with DaveAtkins, but the friction coefficient is 1.0 for roughend concrete.
  10. Bannu

    STRuctual vs Architechture

    Casablanca, An architect is the one who does the job of planning of a project according to the requirements of the client. Assuming it is a typical building project the architect is responisible for the planning of the living area,viz. room sizes, corridors and other elemets according to the...
  11. Bannu

    Concrete friction coefficients

    Rufus182, I have not heard about the static coefficient of friction between concrete to concrete. But know the friction coefficient bet. rubber and concrete which is 1.0. Extending the same logic and since the concrete is heavy the static coefficient of friction may be around 1.0. visit...
  12. Bannu

    How to uninstall a program completely

    I would like to know whether it is possible to remove (Uninstall) a program completely without any traces. I mean the data written to processor too. I know programs which can delete registry entries too but not from processor. Any help from you geeks is appreciated. Thanks
  13. Bannu

    I have been trawling the web in sea

    You can comfortably use the RISA-3D in your case. I have been using the same for a year and found really good for small to medium FEM idealisations. You can model different curved shapes with spring supports very easily through a wizard. More to say about it is it's GUI which is really great...
  14. Bannu

    seismic loads on buried structures

    The soil characteristics are very well dealt in International Building Code 2000. The acceleration coefficient is calculated based on soil profile (Table 1615.1.1 page 350 of IBC 2000). Whether you have to do static or dynamic analysis depends upon the the type and importance of the structure...
  15. Bannu

    Slab on Grade - Design methods

    You may check whether the following web pages helps you. http://www.pdhonline.org/courses/s132/s132.htm http://www.usace.army.mil/inet/usace-docs/armytm/tm5-809-12/chap2.pdf www.unb.ca/civil/valsangkar/valsangkar.htm regards
  16. Bannu

    Design of L &amp; T shaped column.

    msachine, PCA Column program does the job for you. It has very good GUI and capacity to design any arbtrary shaped column. If you are looking for theory, the belive it would be similar to that of rectangular columns with little more involved calculations, but not very sure. Regards Bannu
  17. Bannu

    Your structural niche

    SamDamon, You are already running your office successfully with sufficient number of projects in hand. To my mind each structure is a differnt though design similarities may exist. As a structural engineers we shoud be able to tackle with diverse projects involving different materials and...
  18. Bannu

    distribution of shear forces in four story building

    calculor, I think you need to separate two wings structurally analyse for wind forces separately for better lateral resistace.You may definitely need to help with additional shear walls. Of course the latter procedure is well known, find out the relative stiffness of the walls and distribute...
  19. Bannu

    LEADER SCALE IN PAPER SPACE-ACAD2000

    Glenn G., What I do is according to LT scale I will scale my leader also to appear it properly in the PS. Bannu
  20. Bannu

    shear locking in a beam element?

    Brim, You can get good info about shear locking in the following link. http://www.cmmacs.ernet.in/cmmacs/pdf/ch06.pdf bannu.

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