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NEES/EERI Webinar
April 23 2012PCI/NSF/CPFPART 4:1 of 18
OutlineOutline
Introduce PCI/NSF/CPF DSDM Research Effort Review Key Behaviors of Precast
Diaphragms and Design Philosophy Adopted Summarize DSDM Research Project Findings Present Precast Diaphragm Design
Procedure Cover Precast Diaphragm Design Example Discuss Codification Efforts
NEES/EERI Webinar
April 23 2012PCI/NSF/CPFPART 4:2 of 18
2012 IBC
2009 NEHRP Provisions
ASCE 7-10 Including Supplement
No.1
Entry into the IBC
ACI 318-11
NEES/EERI Webinar
April 23 2012PCI/NSF/CPFPART 4:3 of 18
2009 NEHRP Provisions
NEES/EERI Webinar
April 23 2012PCI/NSF/CPFPART 4:4 of 18
2009 NEHRP RECOMMENDED SEISMIC PROVISIONS FOR NEW BUILDINGS AND OTHER STRUCTURES
Part 1: Provisions
Part 2: Commentary to ASCE/SEI 7-05
Part 3: Resource Papers (RP) on Special Topics in Seismic Design
2009 NEHRP Provisions
NEES/EERI Webinar
April 23 2012PCI/NSF/CPFPART 4:5 of 18
2009 NEHRP ProvisionsPart 3 Resource Paper 10
NEES/EERI Webinar
April 23 2012PCI/NSF/CPFPART 4:6 of 18
2018 IBC
2014 NEHRP Provisions
ASCE 7-16
Entry into the IBC
ACI 318-17 ?
NEES/EERI Webinar
April 23 2012PCI/NSF/CPFPART 4:7 of 18
BSSC PUC Issue Team (IT) 6 on Diaphragm Issues
NEES/EERI Webinar
April 23 2012PCI/NSF/CPFPART 4:8 of 18
Scope
Reexamine and refine seismic design provisions for cast-in-place concrete, precast concrete (with or without topping), metal, and wood diaphragms, focusing on objectives with regards to performance in the design earthquake.
NEES/EERI Webinar
April 23 2012PCI/NSF/CPFPART 4:9 of 18
Global (ASCE 7) Issues
NEES/EERI Webinar
April 23 2012PCI/NSF/CPFPART 4:10 of 18
Metal Diaphragms including Composite and Noncomposite Concrete-Filled Metal Decks –
Current Practice, Performance in Past Earthquakes, Areas of Potential Improvement
NEES/EERI Webinar
April 23 2012PCI/NSF/CPFPART 4:11 of 18
NIST Technical Brief No. 5
NEES/EERI Webinar
April 23 2012PCI/NSF/CPFPART 4:12 of 18
Wood Diaphragms – Current Practice, Performance in Past
Earthquakes, Areas of Potential Improvement
NEES/EERI Webinar
April 23 2012PCI/NSF/CPFPART 4:13 of 18
NIST TechBrief Series 2012: Seismic Design of Steel Special Braced Frame Systems and Structural Wood Diaphragm Systems
NEES/EERI Webinar
April 23 2012PCI/NSF/CPFPART 4:14 of 18
Cast-in-Place Concrete Diaphragms – Current Practice, Performance in Past
Earthquakes, Areas of Potential Improvement
NEES/EERI Webinar
April 23 2012PCI/NSF/CPFPART 4:15 of 18
NIST Technical Brief No. 3
NEES/EERI Webinar
April 23 2012PCI/NSF/CPFPART 4:16 of 18
Precast Concrete Diaphragms (Topped and Untopped) – Current Practice, Performance
in Past Earthquakes, Areas of Needed Improvement
NEES/EERI Webinar
April 23 2012PCI/NSF/CPFPART 4:17 of 18
Schedule
The IT was authorized in March 2011. A Resource Paper by the IT will be completed in 24 months from then, by the end of February 2013.
NEES/EERI Webinar
April 23 2012PCI/NSF/CPFPART 4:18 of 18
Questions?Questions?
Ned Cleland: [email protected]
Robert [email protected]
S.K. [email protected]
