1. steel structure industry overview

Steel structure refers to the form of building structure with steel as the main bearing material, which has the advantages of light weight, strong shock resistance, short construction period, recyclable and so on. Steel structures are widely used in industrial plants, public buildings, bridge engineering, rail transit and other fields. According to different uses and forms, steel structures can be divided into heavy steel structures, light steel structures and fabricated steel structures.

In recent years, under the general policy of "double carbon", "emission reduction" and "sustainable development" have become the core of domestic industrial development, and the structural reform of the construction industry has become the general trend. Compared with traditional concrete buildings, steel structure buildings have obvious advantages in energy saving and emission reduction. According to data from the Shangpu Consulting Group, compared with concrete buildings, steel buildings can save energy during the life cycle.30%-50%Reduce CO2 emissions40%-60%Reduction of solid waste70%-80%. Therefore, national policies and market demand have given great attention and support to steel structure buildings.

2.2022Review of steel structure industry development in

2022 is the first year to fully implement the spirit of the 20th National Congress of the Communist Party of China. Driven by the policy of stabilizing growth, China's economy has maintained strong resilience and potential. Under the influence of multiple factors at home and abroad, the volatility of the steel market has narrowed, the average price has moved down, the profits of the steel industry have shrunk significantly, and the development of steel companies is facing unprecedented difficulties. In this context, the steel structure industry performance is more prosperous, mainly for the following reasons:

（1) Policy support.2022The state introduced a series of policies and measures to support the development of the steel structure industry. For example, the Guidance on Accelerating the Development of Prefabricated Buildings proposes2025In the year, the proportion of prefabricated buildings to new buildings reached30%, of which the proportion of steel structure buildings is not less10%The Guiding Opinions on Promoting the Development of Steel Structure Buildings are proposed2025In the year, steel structure buildings accounted for the proportion of new construction area.15%, of which the proportion of fabricated steel structure buildings is not less.5%The Guiding Opinions on Accelerating the Development of a Green and Low-Carbon Cycle are proposed2030In the whole society, energy consumption and carbon dioxide emissions per unit of GDP were higher2020Annual decline13.5%and18%, the ratio of energy consumption and carbon dioxide emissions per unit value added of the construction industry, respectively.2020Annual decline30%and35%. These policies provide a strong institutional guarantee and market space for the steel structure industry.

（2) market demand.2022Domestic infrastructure investment grew at a rate9.4%The supporting role of infrastructure projects for steel structures is more obvious. Especially in rail transit, bridge engineering, airport facilities and other fields, the demand for steel structure is large. According to data from the Champ Consulting Group,2022National rail transit investment reached1.1Trillion yuan, year-on-year growth12.2%; National new bridge project investment reached1.3Trillion yuan, year-on-year growth15.6%; investment in airport facilities nationwide reached0.8Trillion yuan, year-on-year growth18.3%. In addition, with the improvement of people's quality of life, public buildings, commercial buildings, stadiums and other fields also have a greater demand for steel structures.

（3) technological innovation.2022The steel structure industry has achieved a series of results in technological innovation. For example, China's first super high-rise steel structure building——Shanghai Tower officially completed and put into use; China's first sea-crossing bridge——The Hong Kong-Zhuhai-Macao Bridge has successfully completed the entire line; China's first independent design, independent construction, and independent operation of the polar scientific research station——Kunlun Station officially opened; China's first world's largest single airport terminal——Beijing Daxing International Airport was officially put into operation. These projects fully demonstrate the technical level and innovation ability of China's steel structure industry in design, manufacturing and construction.

To sum up,2022The steel structure industry is developing well in the year, with production reaching10430Ten thousand tons, year-on-year growth9.5%. The largest amount of plate, reaching the total output60%Left and right.2022The steel structure industry's demand for sheet products exceeds6300Ten thousand tons, become the sunrise industry to drive the demand for plate products.

3.2023Development Trend Forecast of Steel Structure Industry in

Outlook2023In 2010, the steel structure industry will continue to maintain a high growth rate, mainly for the following reasons:

（1) policy continues.2023The year is the first year to fully implement the spirit of the 20th National Congress of the Communist Party of China. Global economic growth is facing slowing pressure. China's economy will gradually return to the normal growth track in the steady growth policy of expanding domestic demand. The steel industry will continue to adhere to green and low-carbon development,“Capacity reduction replacement”、“Ultra-low emission retrofit”、“Extreme Energy Efficiency Engineering”Advance will still restrict the release of steel production, steel demand decline has a certain easing, steel exports fell slightly; raw material prices further downward on the market support continues to weaken. In this context, steel structure building as an energy-saving emission reduction, efficient and environmentally friendly building form, will continue to be supported by national policies and market demand.

（2) market expansion.2023The growth rate of domestic infrastructure investment is expected to be6%，形成更多实物工作量，拉动钢结构需求增加。尤其是轨道交通、桥梁工程、机场设施等领域，对钢结构的需求量较大。据尚普咨询集团数据显示，2023年全国轨道交通投资预计达到1.2Trillion yuan, year-on-year growth9.1%；全国新增桥梁工程投资预计达到1.4Trillion yuan, year-on-year growth7.7%；全国机场设施投资预计达到0.9Trillion yuan, year-on-year growth12.5%. In addition, with the improvement of people's quality of life, public buildings, commercial buildings, stadiums and other fields also have a greater demand for steel structures.

（3）技术进步。2023年，钢结构行业在技术进步方面将取得更多突破。例如，中国第一座超高层装配式钢结构建筑——上海金茂大厦将正式竣工并投入使用；中国第一座跨海隧道——渤海湾隧道将成功实现全线贯通；中国第一座自主设计、自主施工、自主运营的极地科考站——昆仑站将正式启用；中国第一座全球最大规模的单体机场航站楼——北京大兴国际机场将正式投入运营。这些项目充分展示了我国钢结构行业在设计、制造、施工等方面的技术水平和创新能力。

综上所述，预计2023年钢结构行业将继续保持较高增长速度，产量将达到11580Ten thousand tons, year-on-year growth11%. The largest amount of plate, reaching the total output60%左右，由此可以估计，2023The steel structure industry's demand for sheet products exceeds6900Ten thousand tons, become the sunrise industry to drive the demand for plate products.

四、钢结构行业面临的挑战和建议

尽管钢结构行业发展前景广阔，但也面临着一些挑战和问题，需要引起重视和解决。主要有以下几个方面：

（1）钢结构标准体系不完善。目前，我国钢结构行业的标准体系还不够完善，缺乏一些关键的技术规范和质量标准，导致钢结构设计、制造、施工、检测等环节存在一定的随意性和不规范性，影响了钢结构建筑的质量和安全。建议加快制定和完善钢结构行业的标准体系，提高钢结构建筑的技术水平和质量水平。

（2）钢结构人才缺乏。目前，我国钢结构行业的人才队伍还不够强大，缺乏一些高层次的专业人才和技术人才，导致钢结构行业的创新能力和竞争力不足，难以适应市场需求的变化和发展。建议加强钢结构行业的人才培养和引进，提高钢结构行业的人才水平和创新能力。

（3）钢结构市场竞争激烈。目前，我国钢结构行业的市场竞争非常激烈，存在一些恶性竞争和低价竞争的现象，导致钢结构企业的利润空间被压缩，影响了钢结构行业的健康发展。建议加强钢结构行业的监管和规范，打击违法违规行为，维护钢结构市场的公平秩序。

（4）钢结构推广应用不够广泛。目前，我国钢结构建筑在一些领域还没有得到充分的推广和应用，存在一些认识误区和使用障碍，导致钢结构建筑的市场潜力没有得到充分释放。建议加强钢结构建筑的宣传和推广，提高社会各界对钢结构建筑的认知度和接受度。

总之，2023年钢结构行业将继续保持较高增长速度，对板材、型材等钢材产品需求将增加。但同时也要注意解决钢结构行业面临的一些挑战和问题，促进钢结构行业的健康发展。