Just around the corner, the future steel structure prefabricated houses will usher in rapid development

A few days ago, the Construction Market Supervision Department of the Ministry of Housing and Urban-Rural Development, in order to do a good job in the promotion and application of steel structure buildings, promote the transformation and upgrading of the construction industry, and achieve high-quality development, to Guangdong, Zhejiang, Jiangxi, Shandong, Henan, Hunan, Hainan , the Housing and Urban-Rural Development Departments of Sichuan and Hai Province, relevant industry associations, and relevant enterprises have launched the 'Opinions on Vigorously Develop Steel Structure Buildings (Draft for Comment)' for comments.

The release of the policy news that the Ministry of Housing and Urban-Rural Development has solicited opinions has been interpreted by the industry as a favorable policy for the industry. Is the future of steel structure buildings really bright? Today, let's take a look at the data and analysis of the industry to see what the future trend of prefabricated steel structure buildings will be.

First of all, the classification of prefabricated buildings can be divided into three categories: prefabricated concrete structures, steel structures (PS) and wood structures according to the structural system. At present, the mainstream structure is still dominated by PC.

As a rising prefabricated building, the difference between steel structure and prefabricated concrete structure is that its main load-bearing components are all made of steel, composed of galvanized steel and EPS insulation materials, and the parts are on site. Connect with bolts or rivets. At present, more than 80% of the components of steel structure buildings can be processed in factories, and at the same time, they are easy to dismantle, and some products and materials can be recycled.

Superior performance of steel structure buildings

It is a substitute for traditional concrete building structures

Compared with traditional concrete structure buildings, steel structure buildings have 'high, Large and light' three characteristics, easy to achieve design standardization, component production industrialization, construction mechanization and assembly.

In addition, the steel structure has the following performance characteristics:

1. Light weight and high strength;

2. Small footprint, high space utilization, and Compared with traditional reinforced concrete houses, the housing rate is increased by 5%~8%;

3. Good ductility and superior seismic performance;

4. High construction efficiency and short construction period;

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5. Energy saving and environmental protection.

Non-residential steel structure buildings

It is still expected to achieve a growth rate not lower than GDP in the future

According to the different steel structure projects of a certain scale in my country in 2018 According to the analysis of the proportion of building types, in the downstream demand of steel structure, commercial real estate accounts for 35%, venues account for 26%, and workshops account for 20%, while residential buildings account for only about 4% of the entire steel structure project, schools and hospitals, etc. Only 1% of the field, schools, hospitals and residential fields accounted for still low.

According to estimates, the penetration rate of steel structures in commercial real estate and venues is close to 60%, that of factory buildings is close to 40%, and the penetration rate of steel structures in schools, hospitals and residential areas is still very high. Low.

At present, the public's acceptance of steel structures is low, so the penetration rate of steel structure houses is only about 1%. The main reasons are concentrated in two aspects:

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1. The public does not know enough about the performance advantages of the steel structure housing.

2. The public does not know enough about the comprehensive benefits of the steel structure housing.

Under the background of improving the assembly rate , the advantages of steel structure are expected to gradually appear in the future, and there is more room for improvement in the penetration rate of the residential sector. According to the calculations of industry professionals, the increase in the consumption of residential steel structures in 2025 compared with 2019 is expected to reach 17.8 million tons.

Entering 2020, policies related to steel structure housing will be strengthened, and policy inclination is a major change at the industry level. Another change is that the cost disadvantage of steel structures relative to concrete structures has been significantly narrowed under the condition that concrete prices and labor costs continue to rise.

Under the condition that labor costs are on the upward channel and the recruitment difficulty is increasing, the cost advantage of prefabricated steel structures will gradually emerge, and the cost gap between concrete structures and steel structures is expected to gradually narrow.

Since 2017, the price of concrete has risen rapidly with the prices of cement and sand and gravel. The concrete market is currently in short supply due to the shortage of sand and gravel aggregates. The cost advantage of steel structures has gradually narrowed, and the price disadvantage is expected to improve significantly.

Steel structure prefabricated buildings have the advantages of superior seismic performance, flexible layout, light weight and high strength, green environmental protection, and convenient construction. Under the superposition of multiple favorable policies, prefabricated steel structure buildings will usher in a golden opportunity period for development.

Building Materials Technology Co., Ltd. is a one-stop service enterprise for the design, production, installation and maintenance of prefabricated houses. It has exported to 40 countries and regions on 6 continents around the world. , light steel villas, container houses, prefab houses and other full range of products, consultation hotline: ,.

Lida Group's products, whether interim or permanent, comply fully with all appropriate producing regulations.

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