Seismically enhanced light-frame residential structures
Abstract/Contents
- Abstract
- Seismic damage to buildings can be mitigated by enhancing the strength and stiffness of the lateral-force resisting system. Wood and cold-formed steel framed shear wall buildings present opportunities for implementing a strength- and stiffness-enhanced seismic design approach because these structures are relatively light, often include floor plans with plentiful wall areas, and are sensitive to damage at small levels of deformation. In light-frame construction, architectural finishes including gypsum wallboard partitions and stucco cladding can be particularly effective in increasing resistance to seismic loads if they are strengthened, stiffened, and integrated into the structural system. These enhancements can be achieved through the use of improved dowel-type fasteners and adhesives to connect sheathing and cladding to framing. This dissertation describes the development of strength- and stiffness-enhanced concepts for light-frame construction. A series of tests on enhanced light-frame components and walls confirmed that simple alterations to conventional walls can increase strength and stiffness several fold. Finite element wall models were developed to capture the behavior of enhanced light-frame walls and structures of varying geometry. A design approach for strength- and stiffness-enhanced light-frame structures that aims to drastically limit damaging building drifts during the design level earthquake is explained. For near-fault areas, parameters for a low-cost sliding isolation system to be used in conjunction with enhanced light-frame structures are recommended. A performance-based evaluation of strength- and stiffness-enhanced light-frame structures indicates that these buildings meet collapse safety targets under severe ground motions while reducing the probability of exceeding damaging seismic drifts by 60% to 80% when compared to conventional light-frame structures.
Description
| Type of resource | text |
|---|---|
| Form | electronic; electronic resource; remote |
| Extent | 1 online resource. |
| Publication date | 2014 |
| Issuance | monographic |
| Language | English |
Creators/Contributors
| Associated with | Swensen, Scott |
|---|---|
| Associated with | Stanford University, Department of Civil and Environmental Engineering. |
| Primary advisor | Deierlein, Gregory G. (Gregory Gerard), 1959- |
| Thesis advisor | Deierlein, Gregory G. (Gregory Gerard), 1959- |
| Thesis advisor | Fell, Benjamin |
| Thesis advisor | Miranda, Eduardo (Miranda Mijares) |
| Advisor | Fell, Benjamin |
| Advisor | Miranda, Eduardo (Miranda Mijares) |
Subjects
| Genre | Theses |
|---|
Bibliographic information
| Statement of responsibility | Scott Swensen. |
|---|---|
| Note | Submitted to the Department of Civil and Environmental Engineering. |
| Thesis | Thesis (Ph.D.)--Stanford University, 2014. |
| Location | electronic resource |
Access conditions
- Copyright
- © 2014 by Scott Donald Swensen
- License
- This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).
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