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ASBD Overview

ASBD logo. ASBD Overview. change this horizontal line to seismic waveform, use light grey color. Axial System of Bending-type Damper Invention by K. J. Chuang U. S. (2004) & Japan ( 200x ) Patent Tested at National Earthquake Engineering Research Center ( 200x ). Insert year of patent.

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ASBD Overview

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  1. ASBD logo ASBD Overview change this horizontal line to seismic waveform, use light grey color • Axial System of Bending-type Damper • Invention by K. J. Chuang • U. S. (2004) & Japan (200x) Patent • Tested at National Earthquake Engineering Research Center (200x) Insert year of patent Insert year of testing

  2. ASBD Advantages • Superior seismic isolation & protection • Affordable cost • Straightforward design analysis • Easy installation and maintenance • Can retrofit existing structure

  3. ASBD Fundamentals Independent components • Vertical bearings supportstructural weight • Horizontal dampers dissipate seismic energy First drawing from old P. 4

  4. ASBD Fundamentals Orthogonal seismic energy paths vastly simplify design and analysis work Borrom drawing from old P. 4

  5. Vertical Bearing Steel plate provides high load-bearing capacity Left of 2nd drawing from old P. 4 Teflon coating facilitates low friction & high wear 1st drawing from old P. 5

  6. Vertical Bearing Wear characteristics data Friction coefficient data 2nd drawing from P. 5 3rd drawing from P. 5

  7. Horizontal Damper • Long axial displacement • High energy dissipation • Consistent damping coefficient • Excellent durability Right of 2nd drawing from old P. 4 Bottom drawing from old P. 6

  8. Horizontal Damper Force-displacement consistency Large displacement durability test 75 ton, 100 cycles Damping coefficient 1st drawing from old P. 6 2nd drawing from old P. 6 3rd drawing from old P. 6

  9. Cost • Affordable components cost due to simplicity of concept and design • Lower original structure cost due to reduced reinforcement requirements against earthquakes Show photos of ASBD installation at contruction site

  10. Installation • Simple to install due to separate vertical and horizontal components • Can easily retrofit existing structures Show photos of ASBD installation at contruction site

  11. Laboratory Test Endurance test, three-story RC structure at NCREE

  12. Laboratory Test Test data, actual seismic input - El Centro (1940) 只要一個圖就夠了，這其中以 El Centro 對研究地震的人來說最著名． 如果日本客戶，用Kobe也行，要依學術研究習慣註明年份(1995)． • Ground acceleration • Top floor acceleration 1st drawing from old P. 7 1st drawing from old P. 7 地表加速度，原圖中的藍線 頂樓加速度，原圖中的紅線

  13. Laboratory Test Fatigue test at NCREE withstood cumulated energy dissipation equivalent to 15 repetition of Ji-ji earthquake (1999, Richter scale magnitude 7.3) Picture from old P. 15

  14. Technology Comparison • Text Insert figure here

  15. Technology Comparison • Text Three drawings from old P. 2

  16. Technology Comparison Table from old P. 3

  17. Competition Comparison

  18. Competition Comparison Design Principles Bottom figure from old P.8 Top figure from old P.8

  19. Competition Comparison Large Displacement Handling Capacity Bottom figure from old P.9 Top figure from old P.9

  20. Competition Comparison Damper Endurance Bottom figure from old P.10 Top figure from old P.10

  21. Competition Comparison Components Installation Bottom figure from old P.11 Top figure from old P.11

  22. Award Winning Gold Medal 2009 Chinese Society of Structural Engineering Top photo from old P.16 Bottom photo from old P.13

  23. Conclusion • Breakthrough concept and design principle • Components exhibits excellent capacity, endurance, and consistency • Can withstand earthquake magnitude 7 to 8 • Simple installation • Affordable cost

  24. Conclusion We stop no earthquakes We stop the damages Core value ASBD ! Drawing from old P. 1

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