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

在本研究中，为了弄清日本传统木结构土墙和木缝的强度性能，以便对其进行修复，我们进行了以下试验。(a)通过试验计算了土方的总截面和局部截面的抗压强度、抗剪强度和抗弯强度。(2)对常用于框架特别是立柱修复的Kanawa-tsugi节点进行了试验，研究了该节点搭接长度对其抗弯抗压性能的影响。结果发现：(1)总截面和局部截面的抗压强度、抗剪强度和抗弯强度均为0。31 n /平方毫米,0。66牛/平方毫米,1。04N/mm2和0。分别为68牛/平方毫米。(2) Kanawa-tusgi节点具有强轴和弱轴弯曲。(3)搭接长度越长，抗弯强度越强，但延性越小。(4)抗压强度基本相同，但不以搭接长度为基础。

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.