Seismic Characteristics of Concrete Plank Diaphragms
{'Code': '07030000', 'Directorate': {'Abbreviation': 'ENG', 'LongName': 'Directorate For Engineering'}, 'Division': {'Abbreviation': 'CMMI', 'LongName': 'Div Of Civil, Mechanical, & Manufact Inn'}}
{'SignBlockName': 'Manpreet K. Singh', 'PO_EMAI': None, 'PO_PHON': None}
Masonry construction comprises a large portion of building                      construction in the U. S. and the world.  Reinforced masonry                    construction use is increasing in moderate to higher seismic                    zones because of its apparent features of economy, fire safety,                 architectural flexibility and ease of construction.  The present                state of masonry structural analysis and design, and materials                  and construction technologies does not enable an accurate                       prediction of building behavior under lateral loads such as                     seismic loads.  In the U.S., masonry buildings are designed and                 built with methods, codes and standards that rely upon a                        mixture of working stress methods, empirical rules, and                         questionable methods for determining allowable stress values.                   Masonry is also a complex building material because of the                      large number of design and construction variables which                         influence the final product configuration and its response under                seismic loads.  In order to describe the seismic response of                    masonry buildings it is necessary to develop the fundamental                    knowledge base to determine basic design methodologies                          consistent with safety and economic requirements.                                                                                                               This research project examines concrete plank diaphragm                         characteristics and considers the effect on diaphragm action of                 a change in the stiffness of the supporting members.  This is                   done by substituting masonry walls in place of steel I-beams.                   Data are used to determine strength, seismic behavior                           characteristics, and failure modes.  An analytical model is                     determined to describe this type of system.  The results of the                 research provide a link between experimental data and actual                    systems which are used in masonry structures.  This project is                  part of the U.S.-Japan Coordinated Program for Masonry                          Building Research and the Technical Coordinating Committee                      for Masonry Research (TCCMAR) Program.
{'FirstName': 'Max', 'LastName': 'Porter', 'PI_MID_INIT': 'L', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Max L Porter', 'EmailAddress': 'mporter@iastate.edu', 'NSF_ID': '000390695', 'StartDate': '10/15/1988', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'Iowa State University', 'CityName': 'AMES', 'ZipCode': '500112103', 'PhoneNumber': '5152945225', 'StreetAddress': '1350 BEARDSHEAR HALL', 'StreetAddress2': '515 MORRILL ROAD', 'CountryName': 'United States', 'StateName': 'Iowa', 'StateCode': 'IA', 'CONGRESSDISTRICT': '04', 'CONGRESS_DISTRICT_ORG': 'IA04', 'ORG_UEI_NUM': 'DQDBM7FGJPC5', 'ORG_LGL_BUS_NAME': 'IOWA STATE UNIVERSITY OF SCIENCE AND TECHNOLOGY', 'ORG_PRNT_UEI_NUM': None}
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[{'Code': '1442', 'Text': 'CONSTRUCTION AND INFRASTRUCTUR'}, {'Code': '1497', 'Text': 'ARCHITECTURE & MECHAN SYSTEMS'}]
{'url': 'https://www.nsf.gov/awardsearch/download?DownloadFileName=1987&All=true', 'xml': '8722870.xml'}