We are familiar with steel structure. Now many buildings are in use, and with the improvement of living standard and the rapid development of construction industry, the demand and requirements for products are increasing. Therefore, in order to ensure that the products have better bearing capacity and ductility, we will choose to design the joints of the products when they are in use, of course not The operation and function of the same node are different. In order to better choose the appropriate node mode during construction, let's learn about the types of product nodes.
1. Rigid joints. Rigid joint is to ensure that the angle between the beam and the column is not deformed or slightly deformed in the process of building stress. In order to ensure the maximum performance of the structure, it is necessary to ensure that the angle between the node and the beam column structure of the structure does not change as much as possible under the force, so that the structure of the building will remain stable. The connection strength of the rigid joint is larger than the yield strength of the connected member, so it is very important to control the stability and strength of the connection. After all the rigid nodes are completed, the node function of the structure can play an effective role.
2. Hinge joint. Generally, the hinge joint is not used in the connection of steel structure, but in the fixation of beam, column body and column base. When the hinged connection is used to connect the beam and the column, it only has the shear force in the vertical direction, and the structure will not produce the bending moment, while the hinged connection structure can realize the free rotation. The construction operation of hinge joint is simple and practical. It can be used to fix the end of the structure to enhance its stability, strengthen the bearing capacity of the end and ensure the safety of the building.
3. Semi rigid joint of steel structure. Semi-rigid joint is a kind of joint between rigid joint and hinged joint. It has a certain moment bearing capacity and can shape the shape of the structure. In addition, semi-rigid structure can also increase the seismic capacity and bending capacity of the building, which is a connection between rigid and flexible. This kind of joint has strong bending capacity and can protect the bearing capacity of the structure. However, it is difficult to construct. The structure elasticity caused by improper construction and design will affect the stability and safety of the structure, so it is not widely used.
In a word, the joint types of steel structure are the above three, and it is not difficult to see that each type has its own advantages. Of course, when designing the joint, we should adopt different connection methods according to different structures and different connection points, but no matter which way we choose, we should follow the correct operation steps in order to play a better role The role of nodes.