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  • 1.  Lessons of Seismic Rehabilitation: IDENTIFYING THE CAUSES OF FAILURE

    Posted 10-28-2018 04:43 PM
    Edited by Tirza Austin 10-29-2018 10:38 AM
      |   view attached

    Review and analysis of some of the devastation caused by the earthquake

    Case Study of Bam Earthquake 2003

    Identifying the causes of failure in the components is one of the most important information for seismic rehabilitation.
    In this file, it has been attempted to present the images of a real earthquake of the crash and its type and causes.
      I invite you to read the attachment.

    Damage occurred in buildings with steel structure

     

    ------------------------------
    Reza Mokarramaydenlou Ph.D., P.E., C.Eng, S.E., M.ASCE
    Structural Engineering and Seismic rehabilitation Consultant
    Mokarramandpartners LLC
    ------------------------------

    Attachment(s)

    pdf
    Bam Earthquake 2003.pdf   5.44 MB 1 version


  • 2.  RE: Lessons of Seismic Rehabilitation: IDENTIFYING THE CAUSES OF FAILURE

    Posted 10-29-2018 08:01 AM
    Edited by Tirza Austin 10-29-2018 10:38 AM
    Let us combine knowledge with experience. In this case study, one of the most common failure is due to welding. What type of weld is used?

    ------------------------------
    Sayed Maqsood S.M.ASCE
    Oakland CA
    (510)395-4361
    ------------------------------



  • 3.  RE: Lessons of Seismic Rehabilitation: IDENTIFYING THE CAUSES OF FAILURE

    Posted 10-29-2018 10:10 PM
    Edited by Tirza Austin 10-29-2018 10:09 PM
    Dear Sayed Ahmad Maqsood, 

    Welding Type:

    SWAM، Shielded Metal Arc Welding

    Welding methods used:
    1-Fillet weld
    2-Diffusion Welding
    3-Spot Welding



    ------------------------------
    Reza] [Mokarramaydenlou Ph.D., P.E., C.Eng, S.E., M.ASCE
    Structural Engineering and Seismic rehabilitation Consultant
    Mokarramandpartners LLC

    ------------------------------

    Original Message


  • 4.  RE: Lessons of Seismic Rehabilitation: IDENTIFYING THE CAUSES OF FAILURE

    Posted 10-30-2018 10:11 AM
    Edited by Tirza Austin 10-30-2018 10:11 AM
    Dear Reza,

    Complete joint penetration and filled weld often used for welding structural components. The other two type; diffusion and spot welds are for typical cases that needs to be used sparingly.

    ------------------------------
    Sayed Maqsood S.M.ASCE
    Oakland CA
    (510)395-4361
    ------------------------------

    Original Message


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