Comparison of the Advantages of Steel Structures and Concrete Structures

As a widely accepted consensus, compared with the currently prevalent use of concrete, steel structures offer several advantages: first, they enable dry‑construction methods, conserving water, occupying less site space, and generating reduced noise and dust; second, their lighter self‑weight requires less earthwork for foundations, thereby minimizing damage to this precious resource; third, they significantly cut down on the use of concrete and masonry materials, reducing quarrying and stone extraction around urban areas and thus supporting environmental protection; fourth, at the end of their service life, steel structures produce far less solid waste upon dismantling, and scrap steel commands a high recycling value. From today’s perspective, steel‑frame construction is among the least environmentally impactful structural systems, and it has been extensively adopted in the West, earning it the designation of “green building.”

To promote the development of steel structures, China has formulated a series of technical standards, along with supporting policies and organizational frameworks.

1. In 1996, the Ministry of Construction formulated the “Building Technology Policy for 1996–2010,” which called for the development of anti-corrosion technologies for steel structures, as well as waterproofing and fire‑proofing coating technologies, in order to meet the growing demands of steel used in construction.

2. In October 1998, the Ministry of Construction issued the “Notice on Promoting and Applying Ten New Technologies in the Construction Industry,” which designated steel structure technology as the eighth of the ten technologies to be promoted. The main contents included: high-rise steel structure technology, spatial steel structure technology, steel–concrete composite structure technology, high-strength bolted and welded connection technologies, and protective measures for steel structures.

3. In May 1999, the Technical Coordination Group for Construction Steel under the Ministry of Construction and the State Bureau of Metallurgical Industry was established, followed by the successive formation of two expert groups on “Reinforced Concrete” and “Steel Structures.”

4. In May 2000, the Ministry of Construction and the Steel Coordination Group of the State Bureau of Metallurgical Industry convened a national symposium on the development of steel structural technology in Beijing. The two agencies established a National Steel Structure Expert Group, which deliberated on the “15th Five-Year Plan” for the national steel structure industry, the 2010 Development Outline, and the engineering technical policies for steel structures in construction. The experts proposed classifying steel structures in building applications into five major categories: high-rise heavy-duty steel structures, large-span spatial steel structures, light‑weight steel structures, steel–concrete composite structures, and residential steel structures, with residential steel structures designated as the primary focus of development during the “15th Five-Year Plan” period.

5. Document No. 131 (2001) issued by the Ministry of Construction promulgated the national industry standard for high-frequency welded thin-walled H‑shaped steel used in structural applications. This measure will further facilitate the wider adoption and application of domestically produced high-frequency welded H‑shaped steel.

Under the guidance of these policies, steel‑structure construction in China has experienced rapid development.

Since the 1980s, more than 40 high-rise steel‑structured buildings have been completed or are under construction in mainland China, with a total floor area of approximately 3.2 million square meters, a steel consumption of about 300,000 tons, and a total investment of roughly RMB 60 billion. A construction boom has emerged in cities such as Beijing, Shanghai, Shenzhen, Dalian, and Tianjin. In particular, the Lujiazui Financial District in Pudong, Shanghai, now boasts 12 high-rise steel‑structured buildings—both completed and under construction. The completed Shanghai Jin Mao Tower (88 stories, 420.5 meters tall) and the Global Financial Center, currently under construction, have propelled China’s high‑rise architecture into the global forefront. Correspondingly, substantial progress has been made in scientific research, structural design, and related construction technologies for high‑rise steel structures. A large number of metal‑structure fabrication facilities within the construction, shipbuilding, metallurgical, power, and railway sectors, along with mechanized construction firms based in Shanghai, Beijing, and the China State Construction Engineering Corporation, have all attained advanced standards in steel‑structure fabrication and installation.

In recent years, space structures—represented by space trusses and space shells—have continued to expand rapidly. These systems are characterized by efficient load distribution, high stiffness, light weight, uniform member types, and ease of fabrication and installation, making them well suited to meet the demands of large spans, lofty interiors, and diverse architectural forms. They are employed not only in ordinary civil buildings but also in industrial plants, hangars, airport terminals, sports venues, exhibition centers, and more. For example, the Tianjin Seamless Steel Pipe Plant, the Capital Airport Maintenance Hangar, and the Tianjin Gymnasium all feature spans of 70 to 80 meters, while the Shanghai Gymnasium likewise boasts comparable dimensions. At the Yangzhou Second Power Plant, several dry‑welding sheds incorporate space trusses or shells with spans exceeding 100 meters. Meanwhile, the Yuxi Tobacco Factory in Yunnan has constructed a contiguous space‑frame facility spanning 120,000 square meters. Space grid structures also lend themselves readily to expressive formal variations; examples include the butterfly‑shaped space shell of the Yichun Stadium, the shell‑like space shell of the Weihai Gymnasium, and the multi‑story, multi‑span space truss supporting the Hainan Giant Buddha. It can be said that space trusses and space shells remain the dominant form in China’s contemporary spatial‑structure construction. A growing number of airport terminals, convention and exhibition centers, and sports facilities are now adopting short‑length tubular members and circular steel tubes to fabricate space trusses, arches, and cable‑stayed grid structures. In addition, wave‑shaped roofs have begun to attract considerable attention.

Warehouses, sports venues, exhibition halls, prefabricated buildings, multi‑story extensions, and various trading markets for building materials and furniture, among others. As overseas housing‑factory manufacturers have flocked to China, market competition has grown increasingly fierce. In tandem with light‑steel structures, insulation and thermal‑break materials, fire‑retardant and anti‑corrosion coatings, skylight components, doors and windows, and connecting hardware have also advanced rapidly; product quality continues to improve, and the range of products and specifications now largely meets the needs of light‑steel construction.

Due to their light weight, excellent seismic performance, and high degree of industrialization, steel structures are an environmentally friendly and green building material, making them well suited for widespread use in residential construction. Residential steel structures, which can significantly boost the national economy, help rapidly advance the industrialization of housing and promote technological innovation in construction‑grade steel as well as structural adjustments within the industry. Beginning in the 1980s, China initiated the introduction of foreign‑developed light‑steel residential systems for research and development. More recently, the Science and Technology Department of the Ministry of Construction and the Housing Industrialization Promotion Center have coordinated relevant institutions to vigorously advance research and development in residential steel structures, carrying out design studies and pilot projects in Beijing, Tianjin, Shanghai, Laiwu in Shandong, Changsha in Hunan, and other locations.

China’s steel‑structure market boasts tremendous growth potential, aligning with national policies on environmental protection and sustainable land use. With the country ranking first worldwide in total steel production, it has established a solid material foundation for the vigorous development of steel structures. The gap that still exists compared with advanced Western nations will spur us to catch up swiftly; the widespread adoption of steel structures is poised to spark a wave of innovations in design and construction. We are confident that the extensive use of steel structures in Olympic venues and major infrastructure projects will rapidly catalyze the development of steel‑frame housing across China.