Design of innovative dynamic systems for seismic response mitigation
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2012.
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| Format: | Thesis |
| Language: | eng |
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Massachusetts Institute of Technology
2012
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| Online Access: | http://hdl.handle.net/1721.1/74497 |
| _version_ | 1826212282202324992 |
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| author | Seymour, Douglas (Douglas Benjamin) |
| author2 | Jerome J. Connor. |
| author_facet | Jerome J. Connor. Seymour, Douglas (Douglas Benjamin) |
| author_sort | Seymour, Douglas (Douglas Benjamin) |
| collection | MIT |
| description | Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2012. |
| first_indexed | 2024-09-23T15:19:14Z |
| format | Thesis |
| id | mit-1721.1/74497 |
| institution | Massachusetts Institute of Technology |
| language | eng |
| last_indexed | 2024-09-23T15:19:14Z |
| publishDate | 2012 |
| publisher | Massachusetts Institute of Technology |
| record_format | dspace |
| spelling | mit-1721.1/744972019-04-12T07:32:52Z Design of innovative dynamic systems for seismic response mitigation Seymour, Douglas (Douglas Benjamin) Jerome J. Connor. Massachusetts Institute of Technology. Dept. of Civil and Environmental Engineering. Massachusetts Institute of Technology. Dept. of Civil and Environmental Engineering. Civil and Environmental Engineering. Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2012. Cataloged from PDF version of thesis. Includes bibliographical references (p. 97-99). Rocking wall systems consist of shear walls, laterally connected to a building, that are moment-released in their strong plane. Their purpose is to mitigate seismic structural response by constraining a building primarily to a linear fundamental mode. This constraint prevents mid-story failure, and maximizes energy dissipation by activating the maximum number of plastic hinges throughout the structure. This is a useful response mitigation system, but suffers from some difficulties, stemming primarily from the considerable mass of the wall. Those difficulties are notably expensive foundations, and very high inertial forces imparted to the building, with subsequent need for expensive lateral connectors. The purposes of this work are to analyze current implementations of rocking wall systems, present an early reference on their application, present the first systematic methodology for their design, clarify their analysis, and introduce an alternative structural system that avoids their difficulties. A quasi-static analysis model is used for predicting the seismic mitigation performance of rocking walls and rocking columns. The stiffness matrix is generalized for an N-story building equipped with these structural systems. The model presented enables optimization of the design parameters, and consequently improved system effectiveness, analytical tractability, and material usage. The case study is a rocking wall system installed in a building located in Tokyo, Japan. A software package is developed, providing an illustrative implementation of the methods derived. by Douglas Seymour. S.M. 2012-10-26T19:01:59Z 2012-10-26T19:01:59Z 2012 2012 Thesis http://hdl.handle.net/1721.1/74497 813844640 eng 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 172 p. application/pdf Massachusetts Institute of Technology |
| spellingShingle | Civil and Environmental Engineering. Seymour, Douglas (Douglas Benjamin) Design of innovative dynamic systems for seismic response mitigation |
| title | Design of innovative dynamic systems for seismic response mitigation |
| title_full | Design of innovative dynamic systems for seismic response mitigation |
| title_fullStr | Design of innovative dynamic systems for seismic response mitigation |
| title_full_unstemmed | Design of innovative dynamic systems for seismic response mitigation |
| title_short | Design of innovative dynamic systems for seismic response mitigation |
| title_sort | design of innovative dynamic systems for seismic response mitigation |
| topic | Civil and Environmental Engineering. |
| url | http://hdl.handle.net/1721.1/74497 |
| work_keys_str_mv | AT seymourdouglasdouglasbenjamin designofinnovativedynamicsystemsforseismicresponsemitigation |