EXPERIMENTAL FINDING OF YOUNG’S MODULUS OF A WELD BOX GIRDER MADE OF STEEL 09Г2С

Purpose. Experimental finding of Young’s modulus values the specimen steel 09Г2С with weld longitudinal arrangement and basic metal, which is used for box girder manufacturing, by means non-electrical strain measurement under various loads. Comparison received results among themselves data references.
 Methods research. Experiment, measurement, least-squares technique.
 Results. Several metal strips arranged crosswisely have been welded making a specimen. The rectangular cross-section has produced detail milling cooling. Tests executed on calibrated equipment metal. Strains measured Huggenberger tensometer during experiment. processed technique. compared references. It found out, that all references are comparable, but differ one from another. essentially. Weld little bigger than according to experimental other author. smaller data. This difference can be explained, in particular, different ways production specimens modulus.
 Scientific novelty. experimentally mechanical loads result processing Practical value. Experimentally necessary at physical mathematical modelling stress state girders 09Г2С.