抄録
In order to examine the applicability of the X-ray stress measurement for the actual steel structural members, the field tests have been performed at a high story building under construction. The test results may be summarized as follows. 1. The X-ray diffraction techiques can be directly applied for the stress measurement of the actual building members with the present technical level. 2. The accuracy of the X-ray measured stress is satisfactory, even if which is obtained through field test, in practical sense.