2026-09-19T11:17:43Zhttps://dspace.mit.edu/server/oai/request

oai:dspace.mit.edu:1721.1/828182022-01-13T07:53:59Zcom_1721.1_7582com_1721.1_7581col_1721.1_131023

Jerome J. Connor. Liptack, Robert J. (Robert Jeffrey) Massachusetts Institute of Technology. Department of Civil and Environmental Engineering. Massachusetts Institute of Technology. Department of Civil and Environmental Engineering 2013-12-06T20:45:48Z 2013-12-06T20:45:48Z 2013 http://hdl.handle.net/1721.1/82818 862817726 Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2013. Cataloged from PDF version of thesis. "June 2013." Includes bibliographical references (p. 75-76). Diagrids are becoming an increasingly popular structural system in high rise design and construction. Little research has been performed on the seismic performance of Diagrids and how it integrates with seismic loss estimation. A motion based design scheme can facilitate the seismic design of Diagrids with the ultimate goal of reducing upfront costs and repair costs. In this thesis we analyze Diagrids with varying locations, aspect ratios, diagonal angles, and motion design parameters to understand the relationship between the geometric design parameters of a Diagrid and the design costs and estimated losses. We use a static seismic design procedure and analyze various period estimation techniques to evaluate their validity when used with Diagrids. We develop a simple loss estimation scheme focused on interstory drift and content replacement. We then analyze which Diagrids are most cost effective for a given set of design parameters, and briefly discuss additional methods of reducing seismic damage to buildings. Our analysis uses Matlab and Microsoft Excel for the development of our analytical models and for the manipulation and organization of data. Keywords: Diagrid Structures, Seismic Design, Seismic Damage, Loss Estimation by Robert J. Liptack. M.Eng. 83 p. eng Massachusetts Institute of Technology M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission. http://dspace.mit.edu/handle/1721.1/7582 Civil and Environmental Engineering. Motion based seismic design and loss estimation of diagrid structures Thesis application/pdf false Publication unknown unknown <Publication xmlns="https://www.openaire.eu/cerif-profile/1.1/" id="05f51317-8c34-4a93-a692-af272ec0fcd8"> <Type xmlns="https://www.openaire.eu/cerif-profile/vocab/COAR_Publication_Types">http://purl.org/coar/resource_type/c_1843</Type> <Language>eng</Language> <Title>Motion based seismic design and loss estimation of diagrid structures</Title> <PublishedIn> <Publication> </Publication> </PublishedIn> <PublicationDate>2013</PublicationDate> <Authors> <Author> <DisplayName>Liptack, Robert J. (Robert Jeffrey)</DisplayName> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> </Authors> <Editors> </Editors> <Publishers> <Publisher> <DisplayName>Massachusetts Institute of Technology</DisplayName> <OrgUnit /> </Publisher> </Publishers> <License>http://dspace.mit.edu/handle/1721.1/7582</License> <Keyword>Civil and Environmental Engineering.</Keyword> <Abstract>Diagrids are becoming an increasingly popular structural system in high rise design and construction. Little research has been performed on the seismic performance of Diagrids and how it integrates with seismic loss estimation. A motion based design scheme can facilitate the seismic design of Diagrids with the ultimate goal of reducing upfront costs and repair costs. In this thesis we analyze Diagrids with varying locations, aspect ratios, diagonal angles, and motion design parameters to understand the relationship between the geometric design parameters of a Diagrid and the design costs and estimated losses. We use a static seismic design procedure and analyze various period estimation techniques to evaluate their validity when used with Diagrids. We develop a simple loss estimation scheme focused on interstory drift and content replacement. We then analyze which Diagrids are most cost effective for a given set of design parameters, and briefly discuss additional methods of reducing seismic damage to buildings. Our analysis uses Matlab and Microsoft Excel for the development of our analytical models and for the manipulation and organization of data. Keywords: Diagrid Structures, Seismic Design, Seismic Damage, Loss Estimation</Abstract> <Access xmlns="http://purl.org/coar/access_right" > </Access> </Publication>