1. Policy Tailwinds Strengthen as Standards System Advances
The China Steel Structure Association (CSSA) recently released group standards for Short-Stroke High-Frequency DTH Hammers and Pneumatic DTH Impactors, driving the industry toward high-precision, intelligent manufacturing. These policies and standards provide a clear roadmap for steel structure enterprises to participate in "Two New and One Heavy" projects (new infrastructure, new urbanization, and major engineering).
In Sichuan, the 1.71-billion-yuan steel structure intelligent manufacturing base invested by Shudao Group achieves 72% automation in production, with diaphragm welding robots operating twice as fast as manual labor, reducing H-beam production labor by 75% and achieving a near-100% product qualification rate. The Guangzhou Airport T3 Terminal project uses BIM technology for millimeter-level steel grid assembly, combined with 3D scanning and intelligent welding, cutting construction time by 20% and carbon emissions by 15%.
Lion Ocean Bridge: The world’s tallest double-deck suspension bridge completed the erection of its first 1,200-ton steel crossbeam, adopting an innovative "bearing plate + prestressed steel 束" (prestressed steel strand) connection technology capable of withstanding over 200,000 tons of pressure.
Guangzhou-Zhanjiang High-Speed Railway Zhanjiang North Station: A 4,770-ton steel grid was lifted 30 meters in one piece, using GPS positioning and drone scheduling for "threading the needle in mid-air" precision installation.
Shenzhen Longhua Zhangkengjing Affordable Housing: 6,028 precast concrete modules were capped in three months, cutting construction time by 50% and reducing construction waste by 75%.
4. Challenges and Solutions: Cost, Talent, and Industrial Chain Coordination
Cost Pressures: Steel structure housing costs 10%-15% more than traditional buildings, but full-life-cycle costs are 20% lower. Daye City reduced prefabricated rural housing costs from RMB 1,800/m² to 1,600/m² through government subsidies and industrial chain investment, exploring revenue from photovoltaic grid integration.
Talent Gap: Shortages of smart construction technicians hinder growth. CSSA plans to train 100,000 workers by 2025, focusing on robotic welding and BIM engineering.
Industrial Chain Synergy: Mismatches between steel specifications and design needs persist. ARCH DESIGN (Zhongheng Design) collaborated with steel mills to develop optimization software, reducing steel usage by 25% in high-seismic pilot projects and promoting hot-rolled steel adoption.
