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EngrUzair last won the day on November 23

EngrUzair had the most liked content!

About EngrUzair

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    Lieutenant Colonel

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    MSU USA & UET Taxila
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  • Interests
    Structural loading, RC design, Steel design, Fire damaged structures, Structural evaluation & rehabilitation

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  1. point load on slab in Etabs

    Create a point on the desired location (using manual meshing, or dummy beams etc) and apply the point load as a vertical force on that point. Regards.
  2. FPSC has advertised BPS-17 jobs for Civil, Electrical & Mechanical Engineers as well as for Architects & Town Planners in MES (Military Engineer Service) under Ministry of Defence. More than 40 vacancies have been advertised for each of these categories. Spread this information among your colleagues for all those interested in these job. Last date for applying is 18-12-2017. See the following link for detailed advertisement. http://www.fpsc.gov.pk/icms/user/jobs.php
  3. Slab on grade

    Check the following thread for some good references related to the design of slabs on grade:- http://www.sepakistan.com/topic/2513-design-floor-slab-in-grade/ Regards.
  4. Cold Formed Steel Design

    Both are the same. For more details, check this Link. Regards.
  5. Determination of Critical Buckling Load

    Buckling load is calculated in accordance with Section 6.3 of Eurocode 3 (EN 1993-1-1) that includes relevant formulas as well as buckling curves. This information is generally available in Eurocode 3 based Steel Design books in the chapters dealing with compression members. One such book is, "Structural Steelwork Design to Limit State Theory, 4th edition, by Dennis Lam et al." Regards.
  6. moment of inertia in shear walls

    In this connection, you might like to have a look on this link that contains a very useful discussion on use of cracked sections in the stiffness analysis of reinforced concrete members. Regards.
  7. RC Embedded Columns

    Yes. In both cases, you should include the said column in your model. It will make your structural framing more stable, due to availability of an additional vertical support for the superstructure. Regards.
  8. Pre-stressed Double Tee Design

    Check the following link:- Replacement of Line Loads acting on slabs to equivalent Uniformly Distributed Loads Regards.
  9. design Floor Slab in Grade

    1. First of all, you need to understand how to design the slab on grade (SOG) through hand calculations. Later on, you may develop a spreadsheet or use some patent software to do it using a computer. 2. The references given above provide design methods (pca, WRI, COE etc), dealing with different types of SOG (e.g., unreinforced, reinforced concrete, post-tensioned etc.) subjected to various types of loads (uniform, line, wheel & post loads). 3. Before starting the design, you will need to go through the reference available with you (i.e., ACI 360), and a. Select the SOG type from the Section 7 onwards, applicable to your case. b. Study the design requirements from the relevant section c. Determine the type and intensity of various loads, the slab will be subjected to during service. d. Solve the relevant design examples, given in the appendices of ACI 360 to understand various design parameters, charts, equations & their application to the design. e. Using the design prameters applicable to your slab, design the SOG by following the procedure adopted in the reference design example. HTH Regards.
  10. Bearing Capacity

    I have not seen such a limit written anywhere. However, the lowest value of bearing capacity (BC) for the building sites I have come across during my professional practice, was mostly 0.5 tons per square foot (TSF). In only one case, the reported BC was 0.25 TSF. However, the client was advised to change the site, as such a low BC indicates a very weak soil, ordinarily requiring a very heavy & expensive footing design. As such, IMO 0.5 TSF may be considered a reasonable lower limit of BC for a building site. Regards.
  11. design Floor Slab in Grade

    You may use following sources for designing floor slabs resting on ground:- a. Designing Floor Slabs on Grade by Ringo & Anderson, 1996 ( Link ) b. ACI 360R-10 Guide to Design of Slabs-on-Ground Regards.
  12. Box Culvert Design

    Following documents may be helpful in connection with structural design of single & two-cell RC box culverts:- 1. Box Culvert Design Example-MnDOT 2. RCC BOX CULVERT - METHODOLOGY AND DESIGNS INCLUDING COMPUTER METHOD 3. Design coefficients for single and two cell box culvert 4. AASHTOWare CVT1_Two-Cell RC Box Culvert Example More documents related to the current topic, are available here:- Structural design of two-cell rc box culvert Regards.

    Sections 11.1 & 11.2, and Table 11.2 (cases 16 to 19) of "Roark's Formulas for Stress and Strain, 7th edition, by Young and Budynas", provide necessary explanation and formulas for the analysis of flat plates subjected to concentrated loads. These might be helpful for you. Regards.
  14. Recommendations for Literature

    WA, 1. Basic information regarding bucking analysis of structural steel elements is generally available in the books dealing with the stability of steel structures. For example, "Guide to Stability Design Criteria for Metal Structures', 6th edition by Ziemian, 2010. 2. Specifically, in relation to Eurocodes, following links may be helpful in providing the desired information:- a. Design of Steel Structures: Eurocode 3 b. Designers’ Guide to Eurocode 3: Design of Steel Buildings c. Buckling resistance of steel & composite bridge structures-SCI 2012 d. Guide on second order analysis-2009 HTH Regards.

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