Low-rise vs. Tall Buildings: What is Safer during Earthquake in Bangkok?
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Low-rise vs. Tall Buildings: What is Safer during Earthquake in Bangkok?

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Issue Date: 3-Apr-2011...

Issue Date: 3-Apr-2011

Type: Presentation

Abstract: Comparison of risks between those from low-rise and high-rise buildings in Bangkok during earthquake

URI: http://dspace.siu.ac.th/handle/1532/1245

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    Low-rise vs. Tall Buildings: What is Safer during Earthquake in Bangkok? Low-rise vs. Tall Buildings: What is Safer during Earthquake in Bangkok? Presentation Transcript

    • Systematic Problem Solving & Decision Making Train-the-Trainer Workshop Low-rise vs. Tall Buildings: What is Safer during Earthquake in Bangkok? Dr. Thiti Vacharasintopchai thitiv@{siu.ac.th, alumni.ait.ac.th} April 3, 2011
    • Outline• What happens during Earthquake?• Seismic Hazard Maps – PGA : Peak Ground Accelerations• Newton’s Second Law – Total force applied on a body is equal to the time derivative of linear momentum of the body.• Structural Dynamics – Vibrations, Natural Frequencies, Mode Shapes• Typical Design of Low-rise vs. Tall Buildings• The Bangkok Soft Clay• Conclusion 2
    • What happens during Earthquake?http://www.civilengineergroup.com/wp-content/uploads/2010/12/seismograph.gif http://www.tulane.edu/~sanelson/images/sgraph.gif http://en.wikipedia.org/wiki/P-wave 3
    • Seismic Hazard Mapshttp://www.bangkokpost.com/media/content/20110326/249115.jpg http://www.crew.org/science/pgaall.html 4
    • Newton’s Second Law • Total force applied on a body is equal to the time derivative of linear momentum of the body.http://en.wikipedia.org/wiki/Newton%27s_laws_of_motion 5http://articles.architectjaved.com/earthquake_resistant_structures/files/2010/06/deformation.jpg
    • Structural Dynamics• Vibrations, Natural Frequencies, Mode Shapes http://www.tulane.edu/~sanelson/images/sgraph.gif http://www.wbdg.org/images/seismic_7.gif http://www.structuremag.org/images/1107-bb-1.gif 6
    • Typical Design of Low-rise vs. Tall Bldgs Tall Buildings http://www.gpsworld.com/files/gpsworld/nodes/2003/3396/chart1.jpg 7
    • Characteristic of The Bangkok Soft Clay http://upload.wikimedia.org/wikipedia/en/thumb/e/ea/ Bangkok_microzonation_map.jpg/300px-Bangkok_microzonation_map.jpg Mexico City 1985 http://eqseis.geosc.psu.edu/~cammon/HTML/Classes/ IntroQuakes/Notes/Images_specific02/ site_amplification.gif Resonance with 10-story Buildings http://www.smate.wwu.edu/teched/geology/GeoHaz/eq-Mexico/eq-Mexico-08.JPG 8
    • “Present” Tall Buildings are Safer during Earthquake in Bangkok? Structural Upgrade Business OpportunityCONCLUSIONThanks to Google Images 9