What is Bellows Culvert? What are the key points of steel bellows culvert design?

Metal corrugated culvert, also known as corrugated culvert, refers to the threaded corrugated pipe used in the culvert buried under the highway and railway, which is made of corrugated steel plate coil or assembled with corrugated steel sheet group of circular steel structure pipe. Hengshui Qijia engineering materials have the best production of metal bellows, using hydraulic one-time forming technology, accurate size, clean and non-invasive surface, so than other methods of forming products set long service life, compact structure, safe and reliable, good interchangeability, no leakage, corrosion resistance, easy installation and other advantages in one is widely used in highways, railways, bridges, passages, retaining walls and a variety of mine roadway retaining wall support and other engineering culverts (pipes).

Hebei Weiye corrugated pipe manufacturing **** is located in Botou Industrial Development Zone, Hebei Province, established in 1990, the existing staff of 360 people, is the early engaged in large-scale bellows compensator steel corrugated pipe culvert and highway, culvert, bridge metal corrugated culvert professional manufacturing enterprises. The company took the lead in passing the ISO9001 international quality system certification, and Baishun brand compensator series products won the "well-known brand in the Chinese market".

Steel corrugated culvert, also known as corrugated culvert, refers to the threaded corrugated pipe used in the culvert buried under the highway and railway, which is made of corrugated steel coil or assembled with corrugated steel sheet group of circular steel structure pipe. It is widely used in culverts (pipes) in highways, railways, small bridges, passages, retaining walls and various mine roadway retaining wall supports. The culvert metal corrugated culvert pipe has:

The connection method is simple, which can shorten the construction period; Lighter, convenient transportation, plus a small amount of foundation construction, drainage pipeline engineering cost is relatively low and other advantages, such as the construction cost of 600mm diameter corrugated pipe and the construction cost of cement pipe, the construction cost of corrugated pipe only needs about 90% of the construction cost of cement pipe, when the construction is inconvenient for traffic, manual work can be used, saving the cost of mechanical equipment such as forklifts, cranes, etc.

Summary. Dear, I am glad to answer for you: Round pipe culvert and corrugated pipe culvert are not the same thing Answer: Round pipe culvert and corrugated pipe culvert are not the same thing, the definition is different:

The steel corrugated pipe culvert is a flexible structure made of corrugated steel plate through special processing, and the reinforced concrete round pipe culvert is a rigid structure. Steel corrugated pipe culvert and reinforced concrete round pipe culvert load action, thank you for your patience. If you are satisfied with my service, please give a thumbs up, and once again wish you all the best!

Peace and joy! Round pipe refers to steel with two ends open and hollow concentric cross-section, and its length is larger than the periphery. It can be used in pipelines, thermal equipment, mechanical engineering, petroleum geological drilling, vessels, chemical industry and special purposes.

What is the difference between a round pipe culvert and a corrugated pipe culvert.

Dear, I am very happy to answer for you: the round pipe culvert and the corrugated pipe culvert are not the same thingAnswer: the round pipe culvert and the corrugated pipe culvert are not the same thing, the definition is different: the steel corrugated pipe culvert is a flexible structure made of corrugated steel plate through special processing, and the reinforced concrete round pipe culvert is a rigid structure.

Round pipe refers to steel with two ends open and hollow concentric cross-section, and its length is larger than the periphery. It can be used for pipe Liangtangdao, thermal equipment, machinery industry, petroleum geological drilling, containers, chemical industry and special purposes.

What is the specific content of the key points of steel bellows culvert design, the following Zhongda Consulting will answer for you.

1. Structural Analysis:

1) This diagram assumes that both the bellows and the soil are elastomers.

2) Regardless of the friction between the soil column at the top of the culvert and the surrounding fill, the angle distribution method is used to calculate, and the semi-infinite elastomer theory is calculated.

3) Soil weight: According to the theory of soil column weight, the internal friction angle = 30°, and the soil capacity is 18kn m.

Second, the structure of the treatment:

1) The corrugated is a circular integral pipe, which is assembled by the whole pipe section and connected by flange bolts.

2) After the steel corrugated plate culvert pipe is processed, it must be treated with hot-dip galvanizing and other anti-corrosion treatments. If it is processed with galvanized steel sheet, it must be processed for a second time after processing.

3) The integral pipe connection flange is made of angle steel and steel plate, and the corrugated plate welding is made of butt welding joint. The fasteners adopt the standard fasteners in the national standard, and their strength and specifications should meet the mechanical requirements, and not lower than the pipe strength requirements. The gasket is matched with the fastener.

The bolts and nuts are hot-dip galvanized.

4) The pipe wall and supporting accessories are hot-dip galvanized, and the average thickness of the galvanized layer is more than 84um. After the culvert is transported to the construction site, the construction site is painted with asphalt on both sides.

5) The sealing material is a rubber sealing ring with good durability or a square asbestos packing sealing strip.

The steel corrugated culvert pipe and the steel belt corrugated pipe are not where @ mourning poet Yu Guangzhong: "There is a tributary of the Yellow River in my bloodline.

1. High strength, due to its unique corrugated structure, it is more than 15 times larger than the compressive strength of cement pipes of the same caliber.

Second, the steel corrugated culvert pipe is connected by sleeve or flange, and the length can be customized according to the need, even if it is not a skilled worker can also operate, the construction is operated by a small amount of manual operation, can be completed in a short time, both fast and convenient.

3. The steel corrugated culvert is made of hot-dip galvanized steel pipe, so the service life is long, the life is 80-100 years, and when used in a particularly corrosive environment, the steel corrugated culvert pipe with bitumen attached layer on the inner and outer surface is used, which can be increased by about 20 years on the basis of the original service life.

Fourth, excellent economy: the connection mode is simple, which can shorten the construction period.

The surface of the steel belt bellows is specially pretreated to enhance the anti-corrosion ability of the steel and the adhesion between the steel and the plastic, and the overall structure of the pipe is firm and reliable in the state of full melting of the plastic raw materials. Due to the use of special materials and processes, it not only solves the problem of anti-corrosion of steel plates, but also solves the adhesion between steel plates and PE materials, so that the service life of the pipeline is the same as that of pure plastic pipes. It can be used for electric hot melt connection, heat shrinkable belt connection, hail balance internal and external extrusion welding or a combination of various connections, and the connection is firm.

The following are the properties of steel belt bellows:

First, it is easy to transport, convenient for construction, it is 1 8 of the weight of the cement pipe, and the buried pipe only needs an excavator, and the matching does not need large-scale equipment;

2. It will not be corroded by pollution, waste water and chemicals, and will not be corroded by decaying substances in the soil;

3. The pipe can be connected outside the ditch and pushed into the ditch with an excavator to reduce the project time and cost;

Fourth, the pipe wall is adopted"u"The zigzag structure is impact-resistant, pressure-resistant, and does not break when the foundation sinks, and has strong resilience after deformation, and has good adaptability to the foundation;

5. Because the elastic modulus ratio of the two materials is greater than 200 and the weight ratio is greater than that, compared with pure plastic pipes, steel belt reinforcement is easy to make pipes (especially large-diameter pipes) have sufficient safe and reliable ring stiffness and relatively high stiffness-to-weight ratio.

Due to the different characteristics of the products, we can purchase according to the on-site conditions and design drawings when purchasing, so as to avoid buying the wrong one and causing unnecessary trouble.

Advantages of Textured Pipe Culvert:

1) The corrugated pipe culvert has a strong ability to adapt to the deformation of the foundation, and the requirements for the bearing capacity and flatness of the foundation are low, and the actual cost of the project is similar or lower than that of the bridge and culvert of the same span.

2) The short construction period is the most obvious advantage, and the civil engineering and pipe section installation can be implemented separately.

3) Carry out centralized production in the factory, and the production is not affected by the environment, which is conducive to reducing costs and controlling quality.

4) The corrugated pipe culvert is easy to install on site, and no large equipment is required.

5) Solve the problem of damage to bridges and pipe culvert concrete structures in cold areas (frost) in the north.

6) Reduce or completely abandon the use of conventional building materials, such as cement, yellow sand, gravel, and wood, which is of far-reaching environmental significance.

7) The force of the corrugated pipe culvert structure is reasonable, the load distribution is uniform, and there is a certain anti-deformation ability.

8) The bellows culvert adopts standardized design, simple production and design, and short production cycle.

9) The corrugated pipe culvert is conducive to improving the "misalignment" phenomenon at the junction of soft soil foundation structure and embankment, improving the comfort and safety of driving, and reducing the cost of post-construction operation and maintenance.

Hengshui Qijiagong bellows **** provides.

Steel corrugated culvert, also known as corrugated culvert, refers to the metal bellows used in culverts buried under highways and railways, which is made of corrugated metal pipes or corrugated steel plates. It is widely used in highway and railway culverts, passages, bridges, tunnels, temporary sidewalks, drainage pipelines and various mine roadway retaining wall support projects. Recommended:

Hebei Weiye corrugated pipe manufacturing ****, Baishun brand steel corrugated pipe culvert, well-known brand in the Chinese market.

Steel corrugated pipe culvert refers to the threaded bellows pipe for culverts buried in highways and railways, which is made of corrugated metal sheet coils or made of semi-circular corrugated steel sheets, which is widely used in culverts (pipes) in highways, railways, bridges, passages, retaining walls and various mines, roadway retaining wall support and other projects.

Compared with reinforced concrete pipe culverts, steel corrugated pipe culverts have the advantages of thin pipe sections, light weight, easy transportation and storage, simple construction technology, fast assembly and short construction period. When building bellows, it can be assembled into any length at will according to the need, and if necessary, the pipe section can also be dismantled and moved to other places for construction, and the advantages of the bellows culvert are more significant in areas lacking sand and gravel materials or areas with low foundation bearing capacity.

Steel corrugated pipe culvert has long been widely used in foreign highways, railways and housing construction projects, some developed countries not only have factories for manufacturing corrugated pipe sections, but also some countries have issued design and construction specifications or procedures for corrugated pipe culverts. Before the liberation of China, the highway and railway departments also used bellows pipe joints imported from abroad. At present, China has a factory specializing in the production of corrugated pipe culverts, in view of the many advantages of this kind of pipe culverts, China's steel production has been in the forefront of the world, and the prospect of promoting the application of corrugated pipe culverts in China is very broad.

Hebei Weiye corrugated pipe manufacturing of the best steel bellows culvert is the use of corrugated pipe or corrugated plate through the connection, assembly of a culvert form, used to replace the round pipe culvert, cover culvert, arch culvert and small bridge of high-quality highway building materials. For highway culverts, the uneven settlement of culverts is one of the main types of failure. The steel corrugated culvert pipe has round, oval, semicircular, etc., and the inlet and outlet can also be made into an oblique mouth according to the proportion of the slope, and the diameter range of the processing corrugated pipe is 3mm 7mm, and the thickness of the pipe wall is 3mm 7mm, which can meet the needs of the thick fill.

Steel bellows culvert has the characteristics of short construction period, light weight, easy installation, good durability, low engineering cost, strong deformation resistance, and reduced maintenance cost after opening to traffic, from the analysis of the essential relationship between material and structure and function, the use of flexible, high-strength steel bellows culvert, not only has the ability to adapt to the deformation of the foundation and the foundation, can solve the culvert damage problem caused by the uneven settlement of the foundation, and the steel bellows culvert has excellent stress characteristics due to the existence of axial corrugations. The axial and radial distribution of the stress and strain caused by the load at the same time can disperse the stress concentration of the load to a greater extent and give better play to the advantages of the steel structure. Especially in the alpine permafrost, soft soil, expansive soil, collapsible loess and other areas, it has obvious economic benefits.

Baishun brand steel bellows culvert, a well-known brand in the Chinese market. Welcome to Hebei Weiye bellows manufacturing ****.

Metal bellows is a kind of regular wavy pipe, commonly used metal bellows are carbon steel, stainless steel, steel, plastic, aluminum and so on. It is mainly used for the connection between pipes and pipelines, or the connection between pipes and equipment, when it is not convenient to use fixed elbows for non-concentric axial transmission, or irregular turning, telescopic and contraction, or to absorb the thermal deformation of pipelines, or when it is not convenient to install with fixed elbows.

The metal bellows pipe blank is made of thin-walled stainless steel strip welded pipe by corrugated processing, which is flexible and has good temperature and pressure resistance. It is suitable for the transportation of air, steam, various industrial gases, water, oil, drugs and other fluid media, and plays an important role in the reciprocating movement of the pipe system, the absorption of the thermal expansion system, the vibration absorption, and the center adjustment of the piping.

Metal bellows pipe blank is the best supporting products for metal hoses, bellows, bellows compensators, bellows blanks, automobile exhaust pipes, high-pressure hoses, cable threading pipes and other pipe bodies. The product is corrosion-resistant, clean and beautiful in appearance, which can improve the pressure-bearing and high and low temperature resistance of the finished hose, prolong the service life of the pipe body, reduce costs, and is widely used in machinery, chemical industry, metallurgy, construction and other industries.

The structural type of steel bellows products is divided into complete shape and assembled type; The cross-sectional shapes are round, oval, horseshoe, arch, etc. The pipe diameter range is , and the processing thickness is , which can meet the needs of the structure with the height of the pipe top fill.

The materials required for the production of steel bellows are quite demanding. However, in general, the required material can be used as long as the following conditions are met:

1.The required material must have very good plasticity, which is conducive to the elastic properties and processing of the steel bellows, and with the subsequent processing to obtain higher elasticity and required strength.

2.The material must have tensile strength and fatigue strength, which can fully ensure the normal function of elastic function.

3.It is necessary to have strong welding ability, and also to meet the requirements required for welding.

4.Elasticity is the main reason for the material, because the steel bellows are constantly affected by the changes in time and temperature.

5.The required material must have sufficient corrosion resistance to ensure the service life and safety of the steel bellows in the project.