It is known that a heavy rain will drain the water, and the drainage will be used to corrugated pipes, such pipes are divided into metal bellows and double-wall bellows, etc., of which the metal bellows are wound with steel tape, crimped and pressed in the winding process, its versatility, interchangeability is very good, but also easy to use. So, how much does the metal bellows weigh? How to detect prestressed metal bellows? Let’s follow Xiaobian to have a look!
How much is the weight of the metal bellows
1, in fact, different metal bellows specifications, different inner diameter sizes, different metal bellows wall thickness, their quality is not the same. For example, a metal bellows with a wall thickness of 0.25 mm and an inner diameter of 50 mm weigh about 0.45 kg per meter, while a metal bellows with an inner diameter of 60 mm weighs 0.55 kg per meter. The weight of the metal bellows with an inner diameter of 50 mm is about 0.5 kg per meter, so the weight of different planning models is also different.
2, the weight of 0.45 kg, 0.55 kg and 0.5 kg of metal bellows are usually used on the site, and these three kinds of metal bellows are also our common weight.
Second, how to detect prestressed metal bellows
1, the detection of metal bellows is mainly to look at its appearance quality, pipe diameter and radial stiffness, as well as impermeability and bending resistance. For the inspection of prestressed metal bellows, there are national standards, and the standard is JG 225-2007 the use of metal bellows in prestressed concrete. This standard also specifies the classification and marking of metal bellows used in prestressed concrete, strict requirements, test methods, inspection rules, packaging and signification, and transportation. It is strictly required to use metal pipes made of galvanized or ungalvanized low carbon steel with spiral folded bite holes for use in post-prestressed concrete structures.
2, the appearance of the metal bellows must be kept clean, and the internal and external surfaces can be filled with oil, rust without holes, etc., so that the metal bellows can achieve standardization, and there will be no quality problems during future construction and use. Therefore, the metal bellows must be strictly checked before they can be sold when they leave the factory.
Article summary: Well, today Xiaobian has shared with you how much metal bellows weight and how to detect prestressed metal bellows relevant knowledge is introduced here, there are friends who need to know more information, please continue to pay attention to Qijia network, we will have more wonderful content for you.
