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COSMOS Technical Sessions


2014 COSMOS Technical Session

Developing Site-Specific Ground Motions to Satisfy the Proposed New Chapter 16 of ASCE 7-2016, which Codifies the West Coast Tall Building Seismic Analysis Requirements

November 14, 2014
8:30 AM—6:00 PM
Crowne Plaza Hotel San Francisco Airport
Burlingame, California

The Consortium of Organizations for Strong-Motion Observation Systems (COSMOS) held its Annual Meeting and Technical Session at the Crowne Plaza Hotel San Francisco Airport located in Burlingame, California, on Friday, November 14th. This year's Technical Session was again co-sponsored by the Pacific Earthquake Engineering Center and the California Geological Survey. The program and most powerpoint presentations are available below:

Schedule Title
7:30 am Registration and Continental Breakfast
8:30 am Welcome and Overview of Day
B. Bachman
Determination of Site-Specific Ground Motions that Satisfy BSSC Proposed New Chatper 16 of ASCE 7-16, which Codifies Tall Building Design Recommendations
8:45 am Overview of BSSC Proposed New Chapter for Nonlinear Response History Analysis Design Requirement and Site-Specific Ground Motion Requirements
C. Haselton
9:20 am Treatment of Directionality in Site-Specific Ground Motions
J. Baker
9:55 am Determning Near-Field Fault-Normal and Fault-Parallel Site-Specific Pulse Response Spectra and Selection/Scaling Site-Specific Fault-Normal and Fault-Parallel Pulse Motions including Simulated Motions and Spectral Matching Programs that Acceptably include Pulse Motions
N. Abrahamson
10:30 am Break
10:45 am Modeling of SSI and Selection of VS30 for Seismic Design with BSSC Proposal
J. Stewart
11:15 am
Y. Bozorgnia
11:45 am COSMOS International Activities Update
J. Steidl
12:35 pm Lunch
1:00 pm Update on the CESMD
H. Haddadi and C. Stephens
1:15 pm Update on the CGS Alquist-Priolo Fault-Mapping Program
T. McCrink
1:35 pm Update and Tutorial on Using the Online PEER DGML Tool to Select and Scale Ground Motion
S. Mazzoni
Update and Status of the Evolved New ASCE 7-10 Chapter 16
2:05 pm Status of the Proposal New Chapter 16 of ASCE Chapter 7-16 and Sigificant Differences from the BSSC Version
R. Hamburger
2:30 pm Site Coefficients, Fa, Fv, and FPGA Proposed for ACE 7-16
C.B. Crouse
2:55 pm Break
3:05 pm Design of the Transbay Tower, San Francisco, California
J. Hooper
3:35 pm Recorded Responses of High-Rise Buildings during the Great Tohoku Earthquake
4:00 pm Panel Discussion
4:50 pm Concluding Remarks
5:00 pm Adjourn for Cocktail Hour (No Host)

Past Technical Sessions

Simulated Design Ground Motions: Are We Ready to Use Them? and Developing Site Specific Risk-Targeted Design Ground Motions that Satisfy 2012 IBC/2013 CBC Requirements
Issues Associated with Adjusting SGA-based GMPEs for Directivity and Fling, and Short-term Impacts of Serious Aftershocks on Building Code Ground Motions
Ground Motions from Subduction Earthquakes and Issues for Seismic Design
Issues Associated with Applying Conditional Mean Spectra to the Selection and Scaling of Design Ground Motions
Practical Application of the New ASCE 7-10 Required Procedures for Determining Site Specific Ground Motions
Selection and Scaling of Ground Motions for Site Response Analysis and Geotechnical Evaluations
Recommendations for Selection and Scaling of Ground Motions for Building Code and Current Performance-Based Earthquake Engineering (PBEE) - Applications and an Evaluation of Selection and Scaling Procedures Proposed for the Next Generation of PBEE
An Evaluation of Methods for the Selection and Modification of Ground Motion Time Histories for Building Code and Performance based Earthquake Engineering Applications
Recommendations for the Selection and Scaling of Ground Motion Time Histories for Building Code Applications

COSMOS is a non-profit organization whose goal is to expand and significantly modernize the acquisition and application of strong-motion data in order to increase public safety from earthquakes.

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