Development of a seismic reinforcing technology of Japanese traditional timber structures Restoration of an earth-wall and timber frameworks

为了对日本传统木结构进行修复，本研究进行了以下试验：(A)通过试验计算出土体的整体抗压强度、局部抗压强度、抗剪强度和抗弯强度；(B)对修复框架特别是柱的常用Kanawa-Tsugi节点进行试验，以了解这种节点的搭接长度对抗弯和抗压性能的影响。结果表明：(1)整体抗压强度、部分抗压强度、抗剪强度和抗弯强度分别为0。31N/mm~2，0。66N/mm2、1.04N/mm2和0。(2)Kanawa-Tusgi接头有弯曲强轴和弱轴的趋势。(3)搭接长度越长，抗弯强度越高，但延性越小。(4)抗压强度基本相同，但不是基于搭接长度。

In this study, the following experiments were conducted for the purpose of clarifying strength performance of an earth-wall and timber joints on Japanese traditional timber structure in order to repair it.(a) A compressive strength for gross section and partial section, a shear strength and bending strength of an earth were figured out by the way of experiment.(b) Kanawa-tsugi joint which was often used in repairing framework especially column was tested in order to figure out an effects of a lapped length of this joint in bending and compressive properties. As the results it were found followings ;(1) a compressive strength for gross and partial section, a shear strength and a bending strength was 0. 31N/mm2, 0. 66N/mm2, 1. 04N/mm2 and 0. 68N/mm2, respectively.(2) Kanawa-tusgi joint had a strong and weak axis in bending.(3) It was in the tendency that the longer a lapped length was, the stronger a bending strength was, but the smaller its ductility was.(4) It was the almost same compressive strength but it was not based on a lapped length.