Maintenance of steel structure engineering

The viewing, protection and maintenance of steel structure engineering has a relationship with its lifespan. Chengdu steel structure manufacturers remind that what cannot be ignored is the inspection and protection of the joint. With the development and evolution of technology, the connection method used in the recent new project is bolt joint. Its operation method is simpler, more convenient, and less labor-intensive than the rivet connection operation method, and it is more convenient to protect and replace together. At present, except for some special occasions, rivet joints have a tendency to be replaced by high-strength bolts. Therefore, it is necessary for us to understand and learn the viewing and protection of these two connection methods.

The inspection of steel structure engineering in bolts is generally carried out by visual inspection, hand hammer knocking, wrench test wrench and other methods. First check whether the bolt is loose and whether the bolt shank is cracked. Regarding bolts receiving dynamic loads, the nuts should be removed periodically and carefully checked for fine cracks in the bolt shank with a magnifying glass.

For cracked or cracked bolts, the cause of the damage should be ascertained, recorded in detail and replaced in time. About loose nuts tighten in time. If the tightening is high strength, use a dynamoscope wrench to tighten the bolt to the specified torque.

Regarding the view of rivets, you can use one hand close to the nail head, and the

other hand hammer from the side of the nail head to knock, if you feel that the nail head is beating, it means that the rivet is loose and needs to be replaced; Rivets with rotten heads, missing edges or cracks also need to be replaced. High-strength bolts can be directly selected instead, and it must be ensured that the bearing capacity of the steel structure project will not be affected after replacement.

Inspectors should have certain practical experience and a high sense of responsibility. Regarding important parts, multiple people should be re-examined to avoid major omissions. Due to the unique advantages of steel structure engineering such as simple manufacturing, short construction period, fire and earthquake resistance, it has been more and more favored, from warehouses, workshops to civil residences, many local areas can see its figure. Today, let's take a look at several key points and difficulties that should be paid attention to in the construction process.

Quality control of embedded bolts, first understand the

drawings when constructing embedded bolts, understand the planning purpose, and manufacture device templates. Ensure that the embedded bolts are not displaced by civil pouring concrete construction. The spacing and bump between the control bolts can be controlled within the agreed error range; Protect the bolt buckle from damage during concrete pouring. After the completion of the civil works, the elevation and axis of the anchor bolts are reviewed with theodolite and level, and recorded and handed over to the next process for inspection.

Component manufacturing quality control, in the steel structure manufacturing process,

should be according to the manufacturing process, grasp the key processes for quality control, such as the processing of key parts, the process of primary components, the selection of processing equipment, etc.

Welding project quality control, steel structure engineering before welding, the welding rod certificate to be checked, according to the requirements of use, together welder must hold the certificate to work.