Nowadays, the application of cable tray has brought great help to our life. The cable bridge is attached to the building which can be supported and fixed on the basis of its own structural characteristics. Because of its good anti-aging, heat preservation, heat insulation, corrosion resistance and good lighting, it has been favored by the masses. It can also effectively solve the problem of insufficient indoor lighting. , energy saving and consumption reduction, environmental protection and other characteristics, but sometimes cable tray will also have some problems, such as deformation, so how can we solve the deformation of cable bridge in Jinan? Let's have a look
1. Prestress method:
A set of tensioning device is installed under the main beam to arch the main beam through the tension of the tie bar. In this way, the lower cover plate of the main beam produces compressive stress, and the upper cover plate produces tensile stress, which is contrary to the stress generated by external load, offsetting part of the working stress, thus improving the stress state of the main beam. Therefore, the prestressed method has the purpose of strengthening the main beam and correcting the deflection. The method is simple and easy to control. Its disadvantage is that it has limitations and it is difficult to correct complex bridge deformation.
2. Flame correction method:
Flame correction method is to heat some parts of the bridge. The heated part will expand, but restricted by the adjacent unheated parts, it can not expand freely, so the heated part will be compressed. As it cools, it shrinks again. In the cooling process, the surrounding metal is pulled close to each other, resulting in contraction force, which is equivalent to the eccentric moment acting on the neutral layer of the main beam, so that the main beam can be restored to the upper arch and the structural deformation can be corrected. The flame correction method is flexible and can correct various complex deformation of bridge structure.
The above is Jinan cable bridge deformation after the two solutions, one is the prestressed method, the other is the flame correction method, these two methods have their own advantages, but also each has its own shortcomings, correction or need to choose according to their own situation. The above content is introduced, follow-up need cable tray friends, can understand our website product information, what need, welcome to contact us at any time.