Four main points of steel structure engineering construction

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 Nowadays, with the rapid economic development, steel structure has been widely used in the construction field because of its advantages such as fast construction speed, short cycle, high strength, easy prefabrication, installation, and high-rise and large-span applications. Before, our country adopted a large number of reinforced concrete structures and pre-stressed concrete structures. On-site engineering and technical personnel lacked construction experience of steel structure projects. The quality of construction directly affected the structure safety.  Therefore, the quality of steel structure has attracted more and more attention. Finally, it is of great practical significance and necessity to strengthen the construction quality control of steel structure construction.

1. Construction preparation

Construction preparation is a necessary condition for the creation of construction. Serious, meticulous, and in-depth construction preparations are necessary to give full play to the positive factors of people, rationally organize manpower and material resources, speed up the progress of the project, provide construction quality, save investment and materials, and ensure smooth progress. The completion of steel structure construction tasks plays an important role.

2. Pay attention to the quality control of steel structure foundation

　　 The quality control of the steel structure foundation generally refers to the quality control of the embedded bolts of the steel structure foundation. The embedded bolts are the first step of the entire project construction, and it is also a very critical step, which is the foundation of the entire project. When constructing foundation embedded bolts, first know the drawings well, understand the intention of the drawings, and make installation templates. The embedded bolts are positioned on the main reinforcement and formwork of the column with two installation templates and steel bars to ensure that the embedded bolts are not displaced by the concrete pouring of the civil works. In this way, the spacing and height between each group of bolts can be controlled within the allowable error range; at the same time, the bolt threads are protected from damage during concrete pouring. After the civil works are completed, use theodolite and level to review the elevation and axis of the anchor bolts, and make records. And submit the next process for acceptance.


3. Quality control of steel structure production

　　The construction of steel structure projects usually goes through two stages of factory production and on-site installation. Most work of steel structure productions are carried out in the factory workshop. Due to the quality of steel structure components processed and manufactured in the factory, it is very important for the on-site installation of steel structure and the safety and stability of the overall structure. Therefore, steel structure manufacturers must have the corresponding enterprise qualifications, production scale, technical capabilities, mechanical equipment and advanced technology.

Fourth, steel component installation quality control

　　 After the completion of the project, the steel structure will be installed on site. Before the steel structure is installed, the quality of the components should be inspected. When the permanent deformation and defects of the components exceed the allowable value, they should be dealt with. For steel column installation, check whether the shim under the column bottom plate is firm and leveled to prevent the anchor bolts under the column bottom plate from losing stability; whether the column is vertical and whether there is displacement. During the installation project, before the structure has not formed a stable system, it should be adopted temporary support measures. When the steel structure is installed to form a space fixed unit, and after the acceptance is passed, the construction unit is required to timely compact the space between the column bottom plate and the top surface of the foundation with expanded concrete.

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