American standard steel structure and Chinese standard steel structure are two different standard systems. They have different applications and requirements in the design and construction of steel structures.
American standard steel structures usually use ASTM standards, which mainly refer to American steel structure design and construction standards. They are formulated and published by the American Institute of Steel Construction (AISC), including requirements for steel structure design, construction, quality control, etc. American Standard focuses on innovation and flexibility in design, and encourages the use of new materials, new technologies and new processes to achieve more economical, efficient and sustainable steel structure buildings. American standard H-shaped steel has three main quality grades: A36, A572, A992, etc.
Many countries in the world adopt American standards, such as the United States, Canada, some countries in the Americas (Bahamas, Guyana, Jamaica, Trinidad and Tobago, Puerto Rico, Belize, etc.) and some Spanish-speaking countries (Argentina, Bolivia, Chile, Colombia, Costa Rica, Dominican Republic, Ecuador, El Salvador, etc.).
Chinese standards refer to Chinese steel structure design and construction standards. Chinese steel structure national standards are mainly formulated and issued by the China Architecture Design & Reasearch Group, including regulations on steel structure design, construction, acceptance and other aspects. The national standard for steel structures focuses on safety and reliability, emphasizing the earthquake resistance, wind resistance and other capabilities of the structure to ensure the safety of steel structure buildings under the action of natural disasters and other external forces. The national standard profiles mainly include Q235, Q345, Q355, etc.
Due to the rapid development of Chinese steel structure, it has formed its own national standard system and construction standards, and has been exported to most countries in the world, and many countries can accept Chinese national standards.
The differences between American standards and Chinese national standards for steel structures are mainly reflected in the following aspects:
Design requirements: The American standard for steel structures pays more attention to innovation and flexibility, and encourages the use of new materials, new technologies and new processes, while the Chinese national standard pays more attention to safety and reliability, emphasizing the earthquake resistance, wind resistance and other capabilities of the structure. Therefore, in actual applications, the usage and application fields of American standards and Chinese national standards will have different preferences and needs.
Construction requirements: The American standards for steel structures have detailed requirements for the construction process and quality control, including requirements for welding, bolting, painting, etc., while the national standards have relatively simplified requirements for the construction process and quality control.
Material composition: Due to differences in production processes and raw material supply in different countries, there will be certain differences in the composition of profiles between American standards and Chinese national standards. Of course, the strength levels and size standards are also completely different, and the units used are also different. American standards generally use imperial units of length: feet and inches. The national standard uses international units of length: millimeters, centimeters and meters.
Price: American standard steel is usually more expensive than Chinese national standard steel.
American standard and Chinese national standard steel structures each have their own advantages, mainly depending on which standard is used and accepted by the country. We can provide integrated design, processing and export of Chinese national standard steel structures, and can also process and export American standard steel structures according to the requirements of customers from various countries. You can consult if necessary.
