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Showing results 71 - 80 of 1534688 documents for pujcka sms nonstop Navtivte web na WWWLOAN24HXYZ rychle zaruen sms pjky na et bez poplatk nov sms pjky do vplaty ihned pujcky ve zkusebni dobe overene 30000 pujky predvplatou rychla pujcka online ternberk online pujcka pred vplatou Kopivnice rychl pjka bez odesln 1k pjka 25 000 jet dnes pjka do vplaty na et pujcky do 48 hodin red orange pjka online pujcka ihned na cet Blansko okamit online pjka
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  1. Slide 1

    https://www.nist.gov/system/files/documents/2017/05/09/6McAllister.pdf
    1 Technical Conference on the Federal Building and Fire Safety Investigation of the World Trade Center Disaster Session VI - Structural Fire Response and Collapse Analysis Observations for Structural Response Structural and Fire Protection Damage Due to Aircraft Impact September 15, 2005 Therese McAllister Building and Fire Research Laboratory National Institute of Standards and Technology U.S. Department of Commerce 2 ObservationsObservations Development of probable collapse sequence for each tower was guided by evidence Photographs and videos Design and maintenance documents Eyewitness accounts Changes in structural performance are not observable until significant deformation has occurred. Observations of structural behavior from over 7000 photographs and 150 hours of video records include: Severed components Deflections and buckling (inward bowing of exterior w...
  2. Slide 1

    https://www.nist.gov/system/files/documents/2017/04/28/6Gross3.pdf
    1 Technical Conference on the Federal Building and Fire Safety Investigation of the World Trade Center Disaster Session VI - Structural Fire Response and Collapse Analysis Fire Protection of Structural Steel September 15, 2005 John L. Gross Building and Fire Research Laboratory National Institute of Standards and Technology U.S. Department of Commerce 2 Fire Protection of Structural SteelFire Protection of Structural Steel Thickness measurements and variability Equivalent uniform thickness Specified and “actual” thickness of fireproofing Variable thickness Equivalent Uniform thickness 0 1 2 3 4 5 6 7 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 C o u n t Ln (Thickness) (d) 3 ““Specified” Thickness of Fireproofing (SFRM)Specified” Thickness of Fireproofing (SFRM) In October 1969, … , the Port Authority stated, in a letter to the fireproofing c...
  3. Slide 1

    https://www.nist.gov/system/files/documents/2017/05/09/6Gross2.pdf
    1 Technical Conference on the Federal Building and Fire Safety Investigation of the World Trade Center Disaster Session VI - Structural Fire Response and Collapse Analysis Standard Fire Test Findings September 15, 2005 John L. Gross Building and Fire Research Laboratory National Institute of Standards and Technology U.S. Department of Commerce 2 Motivation for Conducting Standard Fire Resistance Tests of Floor Assemblies Fireproofing of the floors in the WTC towers was an issue from the original design of the floor system and throughout the service life. Decision to spray trusses directly was innovative Need for test was expressed by Architect of Record and Engineer of Record Uncertainty in how SFRM thickness was specified LERA report reviewed fire resistance of floor system after 1975 fire PANYNJ’s decision to upgrade fireproofing around 1995 3 Result...
  4. PowerPoint Presentation

    https://www.nist.gov/system/files/documents/2017/05/09/6Treadway.pdf
    Fire Endurance Testing of Floor Truss Assemblies Prepared by: Joe Treadway Fred Hervey ASTM E119 – Standard Test Methods for Fire Tests of Building Construction and Materials ASTM E119 prescribes a standard fire exposure of controlled extent and severity. Performance is defined as the period of resistance to standard exposure before the first critical point in behavior (conditions of acceptance)is observed. Conditions of acceptance for floor systems include: • Sustained applied load during classification period • No passage of flame or hot gasses • Maximum and average temperatures of the unexposed side of the specimen • Maximum and average temperatures of the steel joists •Two tests conducted in Toronto at ULC August 7, 2004 - 35 ft. Restrained Assembly August 11, 2004 - 35 ft. Unrestrained Assembly •Two tests conducted in Northbrook at ULI August 1...
  5. Slide 1

    https://www.nist.gov/system/files/documents/2017/05/09/6Gross.pdf
    1 Technical Conference on the Federal Building and Fire Safety Investigation of the World Trade Center Disaster Session VI Structural Fire Response and Collapse Analysis September 15, 2005 John L. Gross and Therese McAllister Building and Fire Research Laboratory National Institute of Standards and Technology U.S. Department of Commerce 2 Contributors and AcknowledgementsContributors and Acknowledgements Project 6 Team • John L. Gross • Therese P. McAllister • Monica A. Starnes • Long T. Phan • Nicholas J. Carino Underwriters Laboratories, Inc. • Frederick Hervey • Mark Izydorek • John Mammoser • Joseph Treadway • William Joy • Aldo Jimenez • Romuald Bolewski 3 Contributors and AcknowledgementsContributors and Acknowledgements Simpson Gumpertz & Heger Inc. • Mehdi S. Zarghamee • Said Bolourchi • Daniel W. Eggers • Ömer O. Erba...
  6. No Slide Title

    https://www.nist.gov/system/files/documents/2017/05/09/5Grosshandler.pdf
    NIST World Trade Center ConferenceNIST World Trade Center Conference Session 5: Analysis of Active Fire Session 5: Analysis of Active Fire Protection SystemsProtection Systems William Grosshandler, Session Chair William Grosshandler, Session Chair Building and Fire Research LaboratoryBuilding and Fire Research Laboratory National Institute of Standards and TechnologyNational Institute of Standards and Technology Building Fire Safety SystemsBuilding Fire Safety Systems Egress systems: stairs, elevators, doors, protected corridors Passive fire protection systems: partitions, gypsum board, sprayed fire-resistive material (SFRM), intumescent materials Active fire protection systems: fire sensors and alarms notification systems sprinklers and water supplies non-aqueous fire suppression systems smoke management systems Recommendations for Improved Active Recommendations fo...
  7. WTC1, 2, 7 Fire Alarm Analysis

    https://www.nist.gov/system/files/documents/2017/04/28/5Grill.pdf
    Project No. 4 Analysis of Active Fire Alarm Systems in WTC 1 & 2 Robert J. Keough Rolf Jensen & Associates Raymond A. Grill, P.E., FSFPE Arup Fire Objectives • Document the design and installation of the fire alarm systems and compare them to applicable code and standard requirements. • Document the normal operation of the fire alarm systems. • Document modifications made to the fire alarm systems in WTC 1 and 2 following the 1993 bombing. • Document the performance of the systems on September 11, 2001 Summary of Scope • Task 1 – Document the Fire Alarm Design and Installation and compare the designs to the applicable codes and standards • Task 2 – Document the normal expected operation and provisions for redundancy • Task 3 – Document the modifications to the fire alarm system in WTC 1 & 2 after 1993 • Task 4 – ...
  8. No Slide Title

    https://www.nist.gov/system/files/documents/2017/05/09/5Ferreira.pdf
    Technical Conference on the NIST Federal Building and Fire Safety Investigation of the World Trade Center Disaster September 14, 2005 Project #4: Investigation of Active Fire Protection Systems Smoke Control Systems Sub-Task (NCSTAR 1-4D) 3610 Commerce Drive, Suite 817, Baltimore, MD 21227-1652 Phone:410-737-8677 Fax:410-737-8688 Web Site: www.haifire.com Michael J. Ferreira, P.E. Steven M. Strege NIST WTC Investigation NIST WTC Investigation Project #4: Investigation of Active Fire Protection Project #4: Investigation of Active Fire Protection Systems Smoke Control Systems SubSystems Smoke Control Systems Sub--TaskTask Purpose: Investigate the performance of the active fire protection systems in WTC 1, 2, and 7 and their role in fire control, emergency response, and fate of occupants and responders. NIST WTC Investigation NIST WTC Investigation Project #4: ...
  9. No Slide Title

    https://www.nist.gov/system/files/documents/2017/05/09/4Pitts3.pdf
    Project 5 Wrap UP Aircraft Impact and Initial Damage Projects 2 and 6 Fire Growth and Estimated Gas Temperature Distributions Heat Transfer and Structural Element Temperatures Project 5 Probable Collapse Sequence Project 6 Some Important Accomplishments • Detailed spatial and temporal mapping of external ventilation pathways derived from WTC imagery used as input for FDS • Use of real-scale fire modeling to calibrate FDS • Extension of FDS to multiblock and parallel processing • Approach for calculating surface heat transfer to solid bodies using gas temperatures from large-cell FDS calculations as input to the much finer resolved meshes used for the ANSYS heat transfer calculations • Approaches for coupling the finely resolved solid-body temperatures derived from ANSYS calculations to the different node structures employed in structura...
  10. No Slide Title

    https://www.nist.gov/system/files/documents/2017/05/09/4Pitts2.pdf
    National Institute of Standards and Technology Technology Administration U.S. Department of Commerce Project 5: Reconstruction of the Thermal Environment William M. Pitts Richard G. Gann September 14, 2005 Project 5 Purpose Reconstruct the time-evolving temperature, thermal environment, and smoke movement in WTC 1, 2, and 7 for use in evaluating the structural performance of the buildings and behavior and fate of occupants and responders. Today’s discussion is limited to WTC 1 and WTC 2 NIST WTC Investigation ProjectsNIST WTC Investigation Projects Analysis of Steel Structural Collapse Evacuation Baseline Performance & Impact Damage Analysis of Codes and Practices Fire Service Response Active Fire Suppression Thermal and Tenability Environment Public Inputs Documents Video/ Photographic Records Oral History Data Emergency Response Recor...
Showing results 71 - 80 of 1534688 documents for pujcka sms nonstop Navtivte web na WWWLOAN24HXYZ rychle zaruen sms pjky na et bez poplatk nov sms pjky do vplaty ihned pujcky ve zkusebni dobe overene 30000 pujky predvplatou rychla pujcka online ternberk online pujcka pred vplatou Kopivnice rychl pjka bez odesln 1k pjka 25 000 jet dnes pjka do vplaty na et pujcky do 48 hodin red orange pjka online pujcka ihned na cet Blansko okamit online pjka