Thesis
Glue-Laminated Beam-To-Column Moment-Resisting Connection
Washington State University
Master of Science (MS), Washington State University
2023
DOI:
https://doi.org/10.7273/000005219
Abstract
Mass timber is commonly used as a building material to support gravity loads. To provide lateral stability for mass timber buildings, light-frame shear walls, steel framing, or concrete shear walls are typically used. With more and more designers using mass timber in the U.S., a push for mass timber moment frames capable of resisting lateral loads has become apparent. Moment frames are popular way to provide lateral support to a structure because they provide a solution when maximizing the open space of a structure is a design requirement. This wood moment frame system uses steel structural fuses that provide the moment resistance between the beam and the column as well as a steel swiveling bearing plate to carry the shear loading. The fuses were intended to provide damping to the connection. The design and placement of the fuses was based on providing easy access for replacement when a fuse would yield during a design level seismic event.
The connection was tested to observe the rotational performance. The rotational performance was then compared to the requirements of special detailed moment frames that are used in high seismic environments. Three different structural fuse sizes were tested to determine how increasing the fuse size effected the recorded connection rotation. A finite element model was created to validate the test data as well as to provide a platform for investigating material improvement of the beam.
The testing and modeling showed that the connection did not meet the special detailed moment frame rotation requirement. Material improvements were made in the model to observe the effect on the connection rotation. The results from the model with the improved material properties yielded rotations closer to what is required for special detailed moment frame connections. However, even after the improvements were made, the connection still did not meet special detailed moment frame requirements.
Metrics
Details
- Title
- Glue-Laminated Beam-To-Column Moment-Resisting Connection
- Creators
- Sam White
- Contributors
- Adam R Phillips (Advisor)James D Dolan (Committee Member)Andre Barbosa (Committee Member)
- Awarding Institution
- Washington State University
- Academic Unit
- Civil and Environmental Engineering, Department of
- Theses and Dissertations
- Master of Science (MS), Washington State University
- Publisher
- Washington State University
- Number of pages
- 97
- Identifiers
- 99901019837201842
- Language
- English
- Resource Type
- Thesis