A Spectral Approach to the Dynamic Instability Analysis in  Earthquake Resistant Design
{'Code': '07030000', 'Directorate': {'Abbreviation': 'ENG', 'LongName': 'Directorate For Engineering'}, 'Division': {'Abbreviation': 'CMMI', 'LongName': 'Div Of Civil, Mechanical, & Manufact Inn'}}
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The design of a structure for earthquake resistance includes                    consideration of the interaction between gravity loads and lateral              displacements.  This interaction, known as the P-Delta effect, refers to        a tendency for unidirectional yielding of the structure, which can lead         to dynamic instability and collapse of the structure.  A methodology to         consider P-Delta effects in the design of seismic resistant structures          is lacking.                                                                                                                                                     The objective of this research is to develop such a methodology to              consider the P-Delta effect and dynamic instability.  The approach is           based on the definition of the inelastic spectrum.  The premise is that         P-Delta effects can be included through spectrum modification, in a way         that is similar to the methods used to incorporate the effects of               ductility and damping.
{'FirstName': 'Dionisio', 'LastName': 'Bernal', 'PI_MID_INIT': None, 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Dionisio Bernal', 'EmailAddress': 'bernal@neu.edu', 'PI_PHON': '6173734417', 'NSF_ID': '000347052', 'StartDate': '07/01/1987', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'Northeastern University', 'CityName': 'BOSTON', 'ZipCode': '021155005', 'PhoneNumber': '6173733004', 'StreetAddress': '360 HUNTINGTON AVE', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'Massachusetts', 'StateCode': 'MA', 'CONGRESSDISTRICT': '07', 'CONGRESS_DISTRICT_ORG': 'MA07', 'ORG_UEI_NUM': 'HLTMVS2JZBS6', 'ORG_LGL_BUS_NAME': 'NORTHEASTERN UNIVERSITY', 'ORG_PRNT_UEI_NUM': 'HLTMVS2JZBS6'}
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{'Code': '1497', 'Text': 'ARCHITECTURE & MECHAN SYSTEMS'}
{'url': 'https://www.nsf.gov/awardsearch/download?DownloadFileName=1987&All=true', 'xml': '8708707.xml'}