Strain measuring device for high-strength steel strand in concrete member

The utility model provides a strain measuring device for a high-strength steel strand in a concrete member, the concrete member is formed by a concrete beam, an ECC reinforcing layer and the high-strength steel strand, and the measuring device comprises two mounting parts and a measuring part. And each mounting part is provided with a connecting pipe and a mounting frame arranged on the outer side of the connecting pipe. The two connecting pipes are arranged on the two sides of a measuring point of the high-strength steel strand in a sleeving mode respectively. And each mounting frame synchronously moves along with the corresponding connecting pipe. The measuring part is used for measuring the distance between the two mounting frames. According to the strain measurement device for the high-strength steel strand in the concrete member, strain measurement can be directly carried out on the high-strength steel strand in the concrete member, and the conditions of the high-strength steel strand and the concrete me