| 摘要 |
A method for the determination of strength of a detail of steel construction includes making at least one reference specimen for study of the part of steel construction of steel same to the steel of the part of the steel construction that is studied, with measurement of coercive force in not stressed sample in given points, with application to the reference sample of load, measurement of coercive force in stressed standard sample, in that very given points, and measurement of coercive force in given points of the parts of the steel construction for which the reference specimen is made, with determination of stressed-deformed state of the part of steel construction, according to the values of coercive force obtained, in the given points of the reference specimen and in given points of the part of the steel construction, through calculation and plotting graphs. Additionally geometrical dimensions of the reference standard and coercive force in given points are measured before loading and after loading, with determination of changes of geometrical dimensions of the reference specimen in given points. After that geometrical dimensions of the part that receives or has received the load are measured in given points of the part where coercive force is measured, with comparison to geometrical dimensions of the part and coercive force before loading the part for given points. According to the values of coercive force obtained for the given points of the reference specimen where coercive force is measured in loaded and not loaded state of the reference specimen and the values of change of geometric dimensions of the reference specimen obtained and according to the values of coercive force obtained for given points of the part that has received or receives the load and the values of the change of geometrical dimensions of the part obtained in that very given points of the part the values of strength of the part are determined, with comparison to the set breaking punt for the part. |
