What are the requirements for the materials of warehouse steel structure?

1. What are the requirements for the materials of warehouse steel structure?

2. How to connect warehouse steel structure?

3. How to check the deformation of warehouse steel structure?

What are the requirements for the materials of warehouse steel structure?

Warehouse steel structure in the process of use will be affected by various forms of action, such as load, foundation uneven settlement, and temperature. The requirements of steel should have good mechanical properties and processing properties to ensure the safety and reliability of the warehouse steel structure.

The strength index of warehouse steel structure consists of elastic limit, yield limit and tensile limit. The design is based on the yield strength of steel. High yield strength can reduce the dead weight of the warehouse steel structure, saving steel and reducing the cost. Tensile strength is the maximum stress that steel can withstand before failure.

The plasticity of warehouse steel structure generally means that after the stress exceeds the yield point, it has significant plastic deformation without fracture. Elongation and area reduction are the main indexes to measure the plastic deformation capacity of steel.

Cold bending property of warehouse steel structure is to measure the resistance of steel to crack when plastic deformation is produced during bending at room temperature.

The impact toughness of warehouse steel structure refers to the ability of absorbing mechanical kinetic energy in the fracture process under the action of impact load.

The welding performance of warehouse steel structure refers to the welding joint with good performance under the fixed welding process conditions. The welding performance can be divided into two kinds: welding performance in the welding process or in use.

There are many factors affecting the durability of warehouse steel structure, including the corrosion resistance, the high temperature and long-term load.

How to connect warehouse steel structure?

There are three connection methods of warehouse steel structure, namely, weld connection, bolt connection and rivet connection.

Weld connection is to locally melt the welding rod and weldment through the heat generated by the arc, and condense into weld after cooling.

Bolt connection is to connect the connectors into a whole through bolts. Bolt connection is divided into ordinary bolt connection and high-strength bolt connection. The construction process is simple and easy to install. It is especially suitable for installation and connection on the construction site and easy to disassemble. It is suitable for structures that need to be installed and disassembled and temporary connections.

Rivet connection refers to that a rivet with a semicircular prefabricated nail head at one end is quickly inserted into the nail hole of the connector after burning the nail rod red, and then the other end is also riveted into a nail head with a rivet gun to make the connection secure.

How to check the deformation of warehouse steel structure?

Check the beams and trusses of warehouse steel structure. When the deflection of the lower chord of the truss is too large, the truss plane is distorted, the roof is locally uneven, the indoor ceiling, painting and other decoration are cracked, it can be considered that the beams and trusses are abnormally deformed. Thin iron wires are required to be tightened at both ends of the numerical support or at both ends of the truss chord.

The deformation of warehouse steel structure columns can be checked by wire hammer and theodolite. The deformation data shall be measured respectively in two vertical directions to determine the inclination or deflection degree of the column body.

For small plate members such as connecting plate and web, the straight edge approach method can be used for comparative measurement.

For the deformation inspection of slender bars dominated by bending deformation, thin iron wires can be used to tension at two selected points of the bars to measure the deformation data.

Qingdao Xinguangzheng Steel Structure Co., Ltd can help you solve the problems to have a better performance in your projects. Our warehouse steel structures have been exported to more than 130 countries and regions around the world. We are glad to hear from you!