In recent years, great progress has been made in the test and detection technology of highway bridge engineering in China, but in actual engineering construction, the test and detection technology has not been paid due attention, resulting in frequent highway bridge accidents in China. Through these construction accidents, we can draw a conclusion that the safest job to ensure the quality of highway bridge construction is to carry out the test and inspection of highway bridge construction. This paper expounds the application of test detection technology in highway bridge construction from three aspects. The first aspect is to briefly explain the importance of the application of test detection technology in highway bridge engineering; The second aspect is to briefly explain the specific reasons and related contents of test and detection technology in highway bridge construction engineering. The third aspect is to briefly explain the specific technical points of test and detection technology in highway bridge construction engineering. The following is a detailed introduction.

First, the importance of the application of test and detection technology in highway bridge engineering

This paper expounds the importance of the application of test detection technology in highway bridge engineering from four aspects. The first aspect is that the application of test detection technology in highway bridge construction is the guarantee of the construction quality of the whole bridge project. The second aspect is the application of test detection technology in highway bridge construction, which can find out the correct construction materials and save construction costs. The third aspect is that the application of test and detection technology in highway bridge construction can promote the development and popularization of this new technology. The fourth aspect is the application of test detection technology in highway bridge construction, which can detect the quality of materials used in the project. The following is a detailed description. (1) The application of test detection technology in highway bridge construction is the guarantee of the construction quality of the whole bridge project. Our application in highway bridge testing is to collect relevant testing theories and master the relevant operating skills and knowledge of highway bridges. Only in this way can we conduct more accurate tests and test data. These data mainly include construction engineering parameters, quality control parameters during construction and acceptance evaluation data at the end of construction. (2) The application of test and detection technology in highway bridge construction can find out the correct construction materials and save the construction cost. Through the application of test detection technology in highway bridge construction, the characteristics of materials used in construction can be identified, so as to select and supply materials according to the conditions of construction site. This will reduce the transportation time and procurement cost of building materials. Through testing, we can greatly reduce the actual cost of the project. At the same time, we can use local materials, and get the basic information of local materials accurately through experiments, whether it meets the requirements of our construction and so on. (3) The application of test and detection technology in highway bridge construction can promote the development and popularization of this new technology. In the application of test and detection technology, new technologies and materials can be adopted for highway bridge construction. We should judge the feasibility and effectiveness of this new technology through its application, and provide more possibilities for the construction of highway bridges in China. Promote the construction process, construction progress and construction quality as a whole. (4) The application of test detection technology in highway bridge construction can detect the quality of materials used in the project. We can distinguish the quality of building materials by testing new technologies, and then sum up a set of related means to distinguish the quality of materials, which is of great help to improve the construction quality of highway bridges.

Second, the specific reasons and related contents of test and detection technology in highway and bridge construction projects.

This paper mainly expounds the specific reasons and related contents of test and detection technology in highway bridge construction engineering from two aspects. The first aspect is the specific reasons for the application of test detection technology in highway bridge construction; The second aspect is the related content of test and detection technology in highway bridge construction. The following is a detailed description. (1) Briefly describe the specific reasons for the application of test detection technology in highway bridge construction. First of all, the application of test and detection technology can provide sufficient construction and design data for the construction of highway bridges; Secondly, the application of test detection technology can improve the quality requirements of highway bridges, give the maximum bearing capacity of bridges through tests, and improve the quality of bridges. Third, the application of test and detection technology can find engineering quality accidents in advance and eliminate engineering quality hidden dangers. Fourthly, the application of test and detection technology can improve the quality specification requirements of construction projects. Finally, the application of test detection technology can provide correct design standards for the construction of highway bridges. (2) Briefly describe the related contents of test and detection technology in highway bridge construction. The test and detection technology is mainly to detect the materials used in construction, including stone sand and concrete, as well as finished products and semi-finished products. By testing these materials, we got the best building materials. Unqualified building materials should be scrapped. In this process, we should strictly follow the relevant procedures for testing.

Three, the specific technical points of highway bridge construction engineering test technology.

This paper expounds the specific technical points of test and detection technology in highway bridge construction engineering, mainly through briefly describing the static load test technology in test and detection technology. The technical points of static load test in test detection technology are briefly described. First, we need to monitor and test three kinds of deformation. We should monitor the vertical deflection, lateral deflection and torsional deformation of the bridge in real time. We should use at least three test points to test the bridge steel structure, get the maximum value and minimum value through experiments, get the corresponding construction stress interval through comparison, and summarize the eccentric load characteristics of the bridge. Secondly, check whether there are cracks in the bridge body in detail. We should use relevant technical equipment to detect the initial cracks. By testing the equipment, the corresponding load value can be obtained. We should record the location, development direction and closure of cracks in detail. If the expected maximum load value is not obtained in the test, the relevant load test should be stopped, just observe the cracks and collect relevant loads through experience. If a bridge with complex structure is encountered in the test, it is necessary to make a detailed record of the static load test of the bridge, observe the changing trend of stress load, evaluate the structure of the bridge, and test the expansion amount and expansion angle.

;