Dynamic Response of Diaphragms
{'Code': '07030000', 'Directorate': {'Abbreviation': 'ENG', 'LongName': 'Directorate For Engineering'}, 'Division': {'Abbreviation': 'CMMI', 'LongName': 'Div Of Civil, Mechanical, & Manufact Inn'}}
{'SignBlockName': 'name not available', '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 concentrates on a lumped mass parameter                   floor slab spring system model to be used for dynamic analysis                  of buildings.  This includes hysteretic modeling for horizontal                 floor systems consisting of composite steel-deck-reinforced                     slabs and concrete hollow-core precast plank slabs.  This                       research develops an analytical non-linear model of load-                       displacement history of horizontal floor systems to provide                     associated displacements and stiffnesses for an integrated                      dynamic spring model.  It provides a computer model using                       experimental data collected from other masonry researchers.                     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': '1497', 'Text': 'ARCHITECTURE & MECHAN SYSTEMS'}
{'url': 'https://www.nsf.gov/awardsearch/download?DownloadFileName=1987&All=true', 'xml': '8722871.xml'}