Outline n n Introduce PCINSFCPF DSDM Research Effort

Outline n n Introduce PCI/NSF/CPF DSDM Research Effort Review Key Behaviors of Precast Diaphragms and Design Philosophy Adopted n Summarize DSDM Research Project Findings n Present Precast Diaphragm Design Procedure n Cover Precast Diaphragm Design Example n Discuss Codification Efforts PCI/NSF/CPF NEES/EERI Webinar April 23 2012 PART 4: 1 of 18

Entry into the IBC 2012 IBC ASCE 7 -10 Including Supplement No. 1 ACI 318 -11 2009 NEHRP Provisions PCI/NSF/CPF NEES/EERI Webinar April 23 2012 PART 4: 2 of 18

2009 NEHRP Provisions PCI/NSF/CPF NEES/EERI Webinar April 23 2012 PART 4: 3 of 18

2009 NEHRP Provisions 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 PCI/NSF/CPF NEES/EERI Webinar April 23 2012 PART 4: 4 of 18

2009 NEHRP Provisions Part 3 Resource Paper 10 PCI/NSF/CPF NEES/EERI Webinar April 23 2012 PART 4: 5 of 18

Entry into the IBC 2018 IBC ASCE 7 -16 ACI 318 -17 ? 2014 NEHRP Provisions PCI/NSF/CPF NEES/EERI Webinar April 23 2012 PART 4: 6 of 18

BSSC PUC Issue Team (IT) 6 on Diaphragm Issues PCI/NSF/CPF NEES/EERI Webinar April 23 2012 PART 4: 7 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. PCI/NSF/CPF NEES/EERI Webinar April 23 2012 PART 4: 8 of 18

Global (ASCE 7) Issues PCI/NSF/CPF NEES/EERI Webinar April 23 2012 PART 4: 9 of 18

Metal Diaphragms including Composite and Noncomposite Concrete-Filled Metal Decks – Current Practice, Performance in Past Earthquakes, Areas of Potential Improvement PCI/NSF/CPF NEES/EERI Webinar April 23 2012 PART 4: 10 of 18

NIST Technical Brief No. 5 PCI/NSF/CPF NEES/EERI Webinar April 23 2012 PART 4: 11 of 18

Wood Diaphragms – Current Practice, Performance in Past Earthquakes, Areas of Potential Improvement PCI/NSF/CPF NEES/EERI Webinar April 23 2012 PART 4: 12 of 18

NIST Tech. Brief Series 2012: Seismic Design of Steel Special Braced Frame Systems and Structural Wood Diaphragm Systems PCI/NSF/CPF NEES/EERI Webinar April 23 2012 PART 4: 13 of 18

Cast-in-Place Concrete Diaphragms – Current Practice, Performance in Past Earthquakes, Areas of Potential Improvement PCI/NSF/CPF NEES/EERI Webinar April 23 2012 PART 4: 14 of 18

NIST Technical Brief No. 3 PCI/NSF/CPF NEES/EERI Webinar April 23 2012 PART 4: 15 of 18

Precast Concrete Diaphragms (Topped and Untopped) – Current Practice, Performance in Past Earthquakes, Areas of Needed Improvement PCI/NSF/CPF NEES/EERI Webinar April 23 2012 PART 4: 16 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. PCI/NSF/CPF NEES/EERI Webinar April 23 2012 PART 4: 17 of 18

Questions? n n n Ned Cleland: drned@brd-inc. com Robert Fleischman rfleisch@email. arizona. edu S. K. Ghosh skghoshinc@gmail. com PCI/NSF/CPF NEES/EERI Webinar April 23 2012 PART 4: 18 of 18