1 / 23

Examples of Nonstructural Components Architectural Partitions Piping Systems Ceilings

SEISMIC VULNERABILITY AND PROTECTION OF NONSTRUCTURAL COMPONENTS by T. T. SOONG and D. LOPEZ GARCIA DEPARTMENT OF CIVIL, STRUCTURAL & ENVIRONMENTAL ENGINEERING UNIVERSITY AT BUFFALO, STATE UNIVERSITY OF NEW YORK NCREE/JRC Workshop November 17-19, 2003. Examples of Nonstructural Components

kaori
Download Presentation

Examples of Nonstructural Components Architectural Partitions Piping Systems Ceilings

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. SEISMIC VULNERABILITY AND PROTECTIONOF NONSTRUCTURAL COMPONENTSbyT. T. SOONG and D. LOPEZ GARCIADEPARTMENT OF CIVIL, STRUCTURAL & ENVIRONMENTAL ENGINEERINGUNIVERSITY AT BUFFALO, STATE UNIVERSITY OF NEW YORKNCREE/JRC WorkshopNovember 17-19, 2003

  2. Examples of Nonstructural Components • Architectural Partitions • Piping Systems • Ceilings • Mechanical and Electrical Equipment • Exterior Cladding • Contents NCREE/JRC Workshop, November 17-19, 2003

  3. Examples of Nonstructural Damage NCREE/JRC Workshop, November 17-19, 2003

  4. Investments in Building Construction (Miranda) NCREE/JRC Workshop, November 17-19, 2003

  5. Direct Economic Loss due to Building Damage • 1994 Northridge Earthquake (Kircher, 2003) Total: $18.5 Billion Nonstructural Related: ~ 50% • 1994 Northridge Earthquake (Kircher, 2003) (Non-residential Buildings) Total: $6.29 Billion Nonstructural Related: $5.20 Billion (83%) NCREE/JRC Workshop, November 17-19, 2003

  6. Fatalities • 1999 Kocaeli Earthquake (Petal, 2003) Total: 17,480 Nonstructural Related: ~ 550 (3%) • 1999 Chi-Chi Earthquake (Soong et al, 2000) (at One Hospital) Total: 7 Nonstructural Related: 7 (100%) NCREE/JRC Workshop, November 17-19, 2003

  7. Seismic Vulnerability • Analysis • Monte-Carlo Simulation • Experience Data • Experiments NCREE/JRC Workshop, November 17-19, 2003

  8. Equipment with restraints Resistant straps, Braces, Tendons or Plumber’s Tapes Anchor Bolts or Expansion Bolts Tendons, Cables, Bungee Cords, Springs or Toggle Bars or Plumber’s Tapes Spring Mounts or Isolators NCREE/JRC Workshop, November 17-19, 2003

  9. Fragility curves for restraint breakage limit state (Lopez Garcia and Soong 2003) NCREE/JRC Workshop, November 17-19, 2003

  10. Medical Gas Redundant Gas Normal Gas Supply supply N O NO 2 (in cylinders) 2 Individual Central System Cylinders Supply Line Cylinder Liquid Oxygen By-pass valve Supply line Evaporator Tank Logic-tree diagram for a medical gas supply equipment (Yao, 1999) NCREE/JRC Workshop, November 17-19, 2003

  11. Fragility of the water tank 1 0.8 0.6 0.4 0.2 0 8 7 100 6 200 300 5 400 distance moment magnitude 500 4 Sample fragility of a water tank/pipeline nonstructural system (Grigoriu and Kafali, 2003) NCREE/JRC Workshop, November 17-19, 2003

  12. Fragility tests of suspended ceiling systems and sample fragility data (Badillo et al, 2002) NCREE/JRC Workshop, November 17-19, 2003

  13. Protection Strategies • Improved Structural Performance • Improved Nonstructural Performance • Better Engineered Conventional Anchors • Newer Technologies NCREE/JRC Workshop, November 17-19, 2003

  14. Improved Structural Performance Reduction in direct economic loss through improved building performance of non-residential buildings (adapted from Kircher, 2003) NCREE/JRC Workshop, November 17-19, 2003

  15. Improved Nonstructural Performance • Better Engineered Conventional Anchors NCREE/JRC Workshop, November 17-19, 2003

  16. Improved Nonstructural Performance • Better Engineered Conventional Anchors (continued) NCREE/JRC Workshop, November 17-19, 2003

  17. Improved Nonstructural Performance • Better Engineered Conventional Anchors (continued) Comparison of expected earthquake loss before and after nonstructural strengthening (Gould and Griffin, 2003) NCREE/JRC Workshop, November 17-19, 2003

  18. Improved Nonstructural Performance • Newer Technologies Tapered metallic yielding device for brittle nonstructural components (Goodno, 2001) TMD for elevator (Rildova and Singh, 2003) NCREE/JRC Workshop, November 17-19, 2003

  19. Improved Nonstructural Performance • Newer Technologies (continued) Wire rope isolator pipe restraint (Loziuk et al, 2003) NCREE/JRC Workshop, November 17-19, 2003

  20. Improved Nonstructural Performance • Newer Technologies (continued) Semi-active device (Rana and Soong, 1998) NCREE/JRC Workshop, November 17-19, 2003

  21. International Collaboration (ATC-58, Draft Work Plan, 2004-08) Task 1: Develop a Catalog of Nonstructural Components, Systems and Contents Task 2: Identify Nonstructural Performance Measures Task 3: Identify Engineering Demand Parameters Task 4: Develop Damage Database Task 5: Establish Comprehensive Testing and Certification Protocols Task 6: Performance Evaluation Case Studies/Testbed Checks NCREE/JRC Workshop, November 17-19, 2003

  22. Investments in Building Construction (Miranda) NCREE/JRC Workshop, November 17-19, 2003

  23. Acknowledgements • Multidisciplinary Center for Earthquake Engineering Research, Buffalo, NY, USA • U.S. National Science Foundation NCREE/JRC Workshop, November 17-19, 2003

More Related