What Is The Difference Between Container And Prefab?

In the wave of modern industrial development, containers and prefabricated parts, as representative industrial products, play a key role in their respective fields. Containers have become an important carrier of global trade and transportation with their standardized and modular design; prefabricated parts, with their efficient and convenient construction advantages, promote the transformation of the construction industry towards industrialization and greening.

 

Definition and basic concepts

Definition of container

A container is a large cargo container with certain strength, rigidity and specifications for turnover. The International Organization for Standardization (ISO) has made clear provisions for the definition of containers, requiring that containers should have sufficient strength and can be used repeatedly for a long time; suitable for transportation by multiple modes of transportation without unloading goods on the way; equipped with facilities for rapid loading and unloading to facilitate transfer from one mode of transportation to another; convenient for filling and unloading of goods; and a volume of not less than 1 cubic meter. Common types of containers include dry cargo containers, refrigerated containers, open top containers, tank containers, etc. to meet the transportation needs of different goods.

 

Definition of prefabricated parts

Prefabricated parts, also known as prefabricated components, are building components or parts prefabricated in factories or construction sites. It covers multiple categories in construction projects, such as prefabricated beams, prefabricated columns, prefabricated wall panels, prefabricated floor slabs, etc. Prefabricated parts are a new type of sustainable construction production method that realizes energy conservation, environmental protection, and maximizes the value of the entire life cycle of building products through standardized design, factory production, and assembly construction. It is an important part of building industrialization.

 

Structural and design features
Structural features of containers
Containers usually adopt steel structures, mainly composed of frames, side walls, end walls, tops, bottoms and other parts. Its frame structure is strong and can withstand large loads and pressures to ensure the safety of goods during transportation. The size of containers strictly follows international standards. Common standard container sizes are 20 feet, 40 feet, 45 feet, etc. This standardized design enables containers to be seamlessly connected worldwide, facilitating transshipment and loading and unloading between different means of transportation. In addition, containers are also equipped with accessories such as door locks and corner fittings, which further enhance their sealing and connection stability.

Structural features of prefabricated parts
The structural design of prefabricated parts depends on their use in construction, and there are many types and forms. Generally speaking, when designing prefabricated parts, it is necessary to consider the connection method with other components to ensure that they can be firmly combined during the construction assembly process. For example, prefabricated wall panels may be connected to other walls or beams and columns by bolts, grouting sleeves, etc.; prefabricated floor slabs may be fixed to steel beams or walls by embedded parts. At the same time, prefabricated parts will also take into account the building's mechanical properties, thermal insulation, waterproofing and moisture-proofing and other functional requirements during the design stage, and meet the overall performance requirements of the building by optimizing the structure and material selection.

 

Application fields​
Application of containers​
Containers are mainly used in the field of logistics and transportation, and are the main means of cargo transportation in international trade. In sea transportation, container ships carry most of the world's cargo transportation volume. Through the standardized transportation of containers, the efficiency of cargo loading and unloading and transportation safety have been greatly improved. In addition to sea transportation, containers are also widely used in road transportation, rail transportation and multimodal transportation, realizing door-to-door transportation of goods from the place of shipment to the destination. In addition, in recent years, containers have also been expanded and applied in other fields, such as container houses, container shops, container homestays, etc., using their movable and transformable characteristics to create a variety of space utilization forms. ​

Application of prefabricated parts​
Prefabricated parts are mainly used in the construction industry. From residential buildings to commercial buildings, public buildings, etc., prefabricated parts can be seen. In residential construction, prefabricated parts can be used to build walls, floor slabs, stairs and other components, effectively shortening the construction period and reducing the impact of on-site construction on the environment. In bridge construction, prefabricated parts such as prefabricated beams and prefabricated bridge piers are also widely used, which can improve the construction quality and construction efficiency of bridges. In addition, prefabricated parts also play an important role in some large-scale infrastructure construction projects, such as subways and tunnels.

 

Manufacturing method​
Manufacturing of containers​
The manufacturing of containers is usually carried out in professional factories, using assembly line operations. The production process includes steel processing, welding, painting, assembly and other links. First, the steel is cut into the required shape and size, and then the various components are assembled into the container frame and box structure through welding. After welding, the surface is painted to improve the corrosion resistance and appearance quality of the container. Finally, door locks, corner pieces and other accessories are installed to complete the overall assembly of the container. Due to the high degree of standardization of container production, factories can achieve large-scale batch production, improve production efficiency and reduce production costs. ​

Manufacturing of prefabricated parts​
The manufacturing of prefabricated parts is also mostly completed in factories, but due to the wide variety and specifications of prefabricated parts, its production method is relatively more flexible. The production of prefabricated parts first requires mold making according to the design drawings. The accuracy of the mold directly affects the size and appearance quality of the prefabricated parts. Then, the raw materials such as concrete and steel bars are mixed and poured according to the designed mix ratio. During the pouring process, the vibration process needs to be controlled to ensure the density of the prefabricated parts. After pouring, the prefabricated parts are cured. Common curing methods include natural curing and steam curing to improve the strength and performance of the prefabricated parts. Finally, the quality of the cured prefabricated parts is inspected, and if qualified, they can be transported to the construction site for installation.

 

Market Development and Trends

Container Market

With the growth of global trade, the demand for container market continues to remain stable. Especially during the epidemic, the global supply chain has further increased its dependence on containers, and the importance of container transportation has become increasingly prominent. In the future, the container market will develop in the direction of intelligence and greening. Intelligent containers will be equipped with sensors, Internet of Things devices, etc. to achieve real-time monitoring and management of cargo status and location; green containers will use environmentally friendly materials and processes to reduce carbon emissions during production and use. ​

 

Prefabricated parts market
In recent years, with the advancement of building industrialization, the prefabricated parts market has ushered in a period of rapid development. Governments of various countries have introduced policies to support the development of building industrialization and promote the application of prefabricated parts in the construction field. In the future, the scale of the prefabricated parts market will continue to expand, and technological innovation will become the key driving force for the development of the industry. The research and development of new prefabricated materials, the optimization of prefabricated parts production processes, and the improvement of assembly technology will further improve the performance and quality of prefabricated parts, reduce production costs, and promote the construction industry to a higher level of industrialization.