Study on Retrofit Effects for Horizontal Plane of Traditional Wooden Houses Based on Full-scale Test

Many large earthquakes have occurred in Japan since the Southern Hyลgo Prefecture earthquake in 1995. Therefore, ensuring the seismic resilience of traditional wooden houses has become very important for their preservation. In Japan, there are a great number of studies on the vertical plane of traditional wooden houses such as seismic walls or connections. However, few studies have focused on the horizontal plane of traditional wooden houses such as floor or roof plane.The purpose of this paper is to examine the retrofit effects for the horizontal plane of traditional wooden houses based on full-scale tests. The first part of this paper is devoted to the experimental study to determine the structural behavior and characteristics of full-scale roof specimens. The test parameter is chosen to examine the retrofit effects for the roof plane. Horizontal shear test were carried out in order to obtain the relationship between the applied load and deformation angle and fracture mode. The second part deals with static pushover analysis of the full-scale roof specimens. Results between experimental test and static pushover analysis are presented and discussed in this paper.