Abstract：
In-depth researches are carried out on the following aspects, such as ｄｅｓｉｇｎ ｏｆ ｃｏｍｐｕｔｅｒ ｃｏｎｔｒｏｌ ｓｙｓｔｅｍ selection of material, type and dimension of strain gauge, sensitive grid or base material of strain gauge, structural type of sensitive grid, key points for pre-embedment of strain gauge, collection and processing of data measured by strain gauge, principle and application of ultrasonic wave velocity ratio inspection method, etc. Strain gauge is pre-embedded in the building structure whose safety shall be monitored during construction and ultrasonic wave velocity inspection of building structure is researched to successfully realize nondestructive safety monitoring of building structure.
