Bridge construction process plastic bellows role of corrugated plastic pipe in bridge construction which plays an important role, if there is a use of substandard construction workers or factory bellows, that this bridge is likely to become known as tofu slag project, there will be a lot of people living in danger. So how in bridge construction in Tianjin proper use corrugated plastic pipe, let's look at some people do not come into contact with the bridge construction may be hard to understand why such a simple bridge material will cause so much harm, briefly describe is this: if the prestressed bellows have quality problems, might not close in filling them, simply saying that the construction would lead to instability. Because there are characteristics of the bellows geometry, primarily bellows under axial force, lateral force, affecting moment allows a relatively large deformation. Compared with the formation of the light pipe, in addition to more than hardness, and has a strong flexibility and having a very high resistance to fatigue under cyclic stress. Bellows used in the field of engineering technology, mainly the following two points: first, as the elastic components, which for a variety of measurement, regulation and control instruments sensitive components, elements and sealing elements connections. Such bellows are usually small in size, good linearity, high precision, most take electrodeposition process get. Second, as a metal hose, which mainly consists of bellows, nets and joints of three parts.