Published December 20, 2025
| Version v1
Journal article
Open
Effects of First Story Stiffness on Earthquake Responses of 2-Story Wooden Houses
Authors/Creators
Description
In this study, a seismic response analysis of 2-story wooden houses has been carried out, and guidelines for proper seismic rehabilitation have been considered. In the analysis, the bilinear + slip model is adopted as the restoring-force characteristics because in previous studies it has been confirmed that the model reproduces characteristics of wooden houses relatively well. First, it was investigated how much the first story stiffness affects the inertia force of the roof during an earthquake. Next, the effects of roof mass were examined. Finally, in the case where an anti-seismic shelter was placed on the ground floor, a suitable connection method to the house was considered.
Files
342-352.pdf
Files
(745.7 kB)
| Name | Size | Download all |
|---|---|---|
|
md5:d5dd553b2e4150e44bfe573391bd0db3
|
745.7 kB | Preview Download |
Additional details
References
- [1] Araki, Y., Koshihara, M., Ohashi, Y. and Sakamoto, I., A Study on Hysteresis Model for Earthquake Response Analysis of Timber Structures, Journal of Structural and Construction Engineering (Transactions of AIJ) 579, (2004.5), 79-85 (in Japanese). [2] Nakayama, S. and Kojima, K., Critical Earthquake Response of Wooden Houses Modeled by Single-Degree-of-Freedom Bilinear + Slip System Subjected to Pulse-Like Ground Motions, Journal of Structural and Construction Engineering (Transactions of AIJ) 780, (2021.2), 201-211 (in Japanese). [3] Matsumoto, N., Matsumoto, K. and Ozawa, Y., Research on Response Control Method for Wooden Houses by Connecting Seismic Shelter, Journal of Structural Engineering 68B, Architectural Institute of Japan (2022.4), 442-451 (in Japanese). [4] Newmark, N. M. and Rosenblueth, E., Fundamentals of Earthquake Engineering, (1971), 161-174, Prentice-Hall. [5] Shibata, A., Newest Method of Design of Aseismic Structure, Rev. 3rd ed., (2021.9), 97-144, Morikita Shuppan (in Japanese). [6] Nakagawa, T., Development of Analysis Method for Collapsing Behavior of Wooden Post-and-Beam Houses during Earthquake, Building Research Data 128, (2010) (in Japanese). [7] Suzuki, T. and Nakagawa, T., Seismic Simulation wallstat Guide, (2020), Gakugei Shuppansha (in Japanese). [8] Newmark, N. M. and Chan, S. P., A Comparison of Numerical Methods for Analyzing the Dynamic Response of Structures, Structural Research Series No. 36, Civil Engineering Studies, Engineering Experiment Station, College of Engineering, University of Illinois at Urbana-Champaign (1952.10). [9] Nakagawa, T., Ohta, M., et al., Collapsing Process Simulations of Timber Structures under Dynamic Loading III: Numerical Simulations of the Real Size Wooden Houses, Journal of Wood Science 56, 4, (2010), 284-292.