- Library Home /
- Search Collections /
- Open Collections /
- Browse Collections /
- International Conference on Applications of Statistics and Probability in Civil Engineering (ICASP) (12th : 2015) /
- Seismic reliability analyses of timber-steel-hybrid...
Open Collections
International Conference on Applications of Statistics and Probability in Civil Engineering (ICASP) (12th : 2015)
Seismic reliability analyses of timber-steel-hybrid system Zhang, Xiaoyue; Fairhurst, Michael; Tannert, Thomas
Abstract
Reliability analyses are of great importance in performance-based seismic structural design as there are inherent uncertainties in both the actions (earthquakes) and the reactions (properties of the structural systems). In this paper, reliability analyses are performed on the “Finding the Forest Through the Trees” (FFTT) system, a novel timber-steel hybrid system. The FFTT system utilizes engineered timber products to resist gravity and lateral loads with interconnecting steel members to provide the necessary ductility for seismic demands. An improved response surface method with importance sampling is used to perform reliability-based seismic analyses. Peak inter-storey drift is selected as the main performance criterion as it is typically an indicator of overall damage to the structure. Uncertainties involving ground motions, weight (mass), stiffness and connection properties of the lateral load resisting system are considered in formulating the performance functions. A series of nonlinear dynamic analyses is run to generate the response database and the reliability index is evaluated using first-order reliability method (FORM) and importance sampling (IS) methods. The results show that the ductility reduction factor does not significantly influence the reliability index, while the structural weight and the hold-down stiffness play significant roles.
Item Metadata
Title |
Seismic reliability analyses of timber-steel-hybrid system
|
Creator | |
Contributor | |
Date Issued |
2015-07
|
Description |
Reliability analyses are of great importance in performance-based seismic structural design
as there are inherent uncertainties in both the actions (earthquakes) and the reactions (properties of the
structural systems). In this paper, reliability analyses are performed on the “Finding the Forest Through
the Trees” (FFTT) system, a novel timber-steel hybrid system. The FFTT system utilizes engineered
timber products to resist gravity and lateral loads with interconnecting steel members to provide the
necessary ductility for seismic demands. An improved response surface method with importance
sampling is used to perform reliability-based seismic analyses. Peak inter-storey drift is selected as the
main performance criterion as it is typically an indicator of overall damage to the structure. Uncertainties
involving ground motions, weight (mass), stiffness and connection properties of the lateral load resisting
system are considered in formulating the performance functions. A series of nonlinear dynamic analyses
is run to generate the response database and the reliability index is evaluated using first-order reliability
method (FORM) and importance sampling (IS) methods. The results show that the ductility reduction
factor does not significantly influence the reliability index, while the structural weight and the hold-down
stiffness play significant roles.
|
Genre | |
Type | |
Language |
eng
|
Notes |
This collection contains the proceedings of ICASP12, the 12th International Conference on Applications of Statistics and Probability in Civil Engineering held in Vancouver, Canada on July 12-15, 2015. Abstracts were peer-reviewed and authors of accepted abstracts were invited to submit full papers. Also full papers were peer reviewed. The editor for this collection is Professor Terje Haukaas, Department of Civil Engineering, UBC Vancouver.
|
Date Available |
2015-05-20
|
Provider |
Vancouver : University of British Columbia Library
|
Rights |
Attribution-NonCommercial-NoDerivs 2.5 Canada
|
DOI |
10.14288/1.0076099
|
URI | |
Affiliation | |
Citation |
Haukaas, T. (Ed.) (2015). Proceedings of the 12th International Conference on Applications of Statistics and Probability in Civil Engineering (ICASP12), Vancouver, Canada, July 12-15.
|
Peer Review Status |
Unreviewed
|
Scholarly Level |
Faculty; Researcher
|
Rights URI | |
Aggregated Source Repository |
DSpace
|
Item Media
Item Citations and Data
Rights
Attribution-NonCommercial-NoDerivs 2.5 Canada