With the improvement of the technical capabilities of the steel industry and the maturity of the application experience of steel structure space frames, space frame steel structures are blooming everywhere. High-strength bolt connection engineering is one of the most important sub-items of steel structure engineering, and it is also one of the weak links of current construction quality. Xuzhou LF Construction Engineering Co., Ltd. will give you a brief introduction to the problems that tend to occur in high-strength bolt connection projects.
Problem 1: In the space frame steel structure engineering, high-strength bolts are shoddy (replace high-strength bolts with ordinary refined bolts);
Problem 2: In the construction of space frame steel structure engineering, the treatment of the connection surface of the high-strength bolts fails to meet the requirements of the specification, including the surface treatment, the smoothness and close adhesion, and the quality of the bolt holes;
Problem 3: The tightening of high-strength bolts in the construction of space frame steel structures is not carried out in accordance with the regulations. For example, it can be completed at one time regardless of the initial and final tightening, no torque wrench is required, and subjective estimation.
The quality of the project is more important than Mount Tai. In order to ensure the construction quality of the high-strength bolted connection project, the supervisory engineer must have a high sense of responsibility. While urging the contractor to improve quality awareness, strengthen quality management, and implement quality assurance measures, they must actively adopt side-by-side supervision.Parallel inspection and other working methods. Only by strengthening management and constructing in strict accordance with the requirements can the construction quality of the high-strength bolt connection project be under strict control, and thus the quality of the entire project can be guaranteed.