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Important Trends in the International Steel Structure Industry from January to February 2023

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2023-04-06 18:32

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In order to promote international cooperation and exchanges and strengthen the understanding of foreign steel structures and related industries, the association will report on the main international industry trends in January and February.


1. U.S. Department of Commerce steel import monitoring and data analysis, in December 2022, the total number of U.S. steel import license applications was 12.218 million tons, up 2.11% from 214.1 million tons in November. Import permits for finished steel were 1.9 million mt in December, up 12.185% from 11.175 million mt in November. For the whole year of 8, the total amount of steel imports was 5.2 million tons, down 2022% year-on-year. The total import volume of finished steel was 3082.2 million tons, up 2.2524% year-on-year.

In December 2022, countries applying for US steel import licenses included Canada (12,49 mt, down 4% m/m), Mexico (6,41 mt, up 7% m/m), South Korea (66,20 mt, up 3% m/m), Japan (46,13 mt, up 9% m/m) and Germany (34,7 mt, down 2% m/m). For the full year 39, the largest steel supplier in the United States was Canada (2022.683 million tons, down 2% year-on-year), followed by Mexico (530.4 million tons, up 11% year-on-year) and South Korea (278.6 million tons, up 1% year-on-year).

2. U.S. Department of Commerce steel import monitoring and data analysis, in January 2023, the total number of U.S. steel import license applications was 1.248 million tons, up 3.12% from 226.2 million tons in December last year. Import permits for finished steel were 9.8 million mt in January, up 1.195% from 2.12 million mt in December last year.

In January 2023, countries applying for U.S. steel import licenses included Canada (1,59 mt, up 1% m/m), Mexico (13,45 mt, up 8% m/m), Brazil (10,30 mt, up 9% m/m), Japan (535,10 mt, down 8% m/m), and South Korea (9,10 mt, down 4% m/m).

3. The draft of the new American Institute of Steel Construction Certification Standard (AISC 207) is now available. The new version of the standard (AISC 207) is expected to be published in early 2024 and will replace the old American Institute of Steel Construction certification standard (AISC 207-20).

4. On January 2023, 1, the American Steel Construction Association held a seminar on "Verification of Computer Analysis Results". Understanding how to use structural engineering analysis and design software is a must-have skill for all engineers. This webinar introduces simple ways to validate computer-generated analysis and design, including limitations of computer analysis and examples of common problems associated with such analysis. The instructor is Clifford Schwinger, a graduate of Lehigh University in 19 and has more than 1976 years of experience in building structure design on the American Steel Construction Association's Standards Committee.

5. Recently, the National Bridge Alliance issued the Reference Guide for Uncoated Weathering Steels. Uncoated weathering steel has anti-corrosion function and does not require any coating, so the installation speed is fast, which shortens the construction schedule. Uncoated weathering steels are environmentally friendly by reducing the release of organic compounds into the atmosphere. With the application of uncoated weathering steel in bridges, its good properties have been continuously verified in many studies. The Reference Guide for Uncoated Weathering Steels contains design recommendations, structural design, maintenance and other valuable references.

6. Recently, the American Steel Construction Association and the National Steel and Bridge Alliance expressed support and approval for the Biden administration's new policy that all building materials used in federal government projects are made in the United States. There are nearly 1000,600 steel structure manufacturers in the United States, and the national steel structure output exceeds <> million tons. The American Steel Construction Association said that U.S. building materials have the ability to provide security for U.S. steel bridges, buildings and steel-intensive critical infrastructure projects.

7. Recently, the American Iron and Steel Institute Standards Committee formed a new group to develop energy standards for the building envelope. The group is responsible for the ongoing development of AISI S250, the North American standard for heat transfer for cold-formed steel frame building envelopes. The new Energy Standards Committee is administratively overseen by the Standards Committee of the American Iron and Steel Institute. The first meeting of the Committee will be held on March 2023, 3.

8. Registration for the 2023 North American Steel Structure Conference (NASCC), scheduled to take place in Charlotte, North Carolina, USA, April 4-12, 14 is now open. The conference is the annual meeting of the steel structure industry in North America, involving the latest steel structure design concepts, construction technology and cutting-edge scientific research results. In addition, exhibitions will be held simultaneously during the conference to provide a platform for participants to communicate and exchange.

9. At present, the American Steel Construction Association is selecting the fifth annual "Forge" Award entries. Established in 2018 by the American Society of Steel Construction, the award recognizes emerging architects who are engaged in innovative applications of steel structures and increase the speed of project construction. The winner will receive $1,4 and will present its winning project at the North American Steel Structure Conference in April.

10. Recently, the American Steel Construction Association announced the 2023 "Steel Structure Engineering and Architecture Innovation Design Award" (IDEAS²) winning projects. The award recognizes projects that apply steel structures in innovative ways. Winners will be invited to attend the North American Steel Structure Conference in Charlotte, North Carolina, April 4-12.

11. Recently, the American Steel Construction Association issued a new version of the Steel Building Code (ANSI/AISC 360-22). The first edition of the code was published in 1923, and a century later, upgraded versions of the code continue to provide designers, manufacturers, and builders with safe, efficient, durable, and economical standards for steel construction. The new standard combines the latest collaboration between the American Steel Construction Association's Code Committee and the Standards Implementation Code Committee.

12. On January 2023, 1, the British Stainless Steel Association held the "Stainless Steel Beginner's Guide" online training course, with a total of 19 hours. The main contents include: stainless steel types and grades, stainless steel production, mechanical properties, corrosion properties, sustainability. The participants gained a comprehensive understanding of the production, use and performance of stainless steel.

13. On January 2023, 1, the British Stainless Steel Association held a webinar on "Exploring Automation Opportunities in the Stainless Steel Industry". An in-depth look at the key challenges facing the stainless steel industry, namely how to improve product quality and further increase productivity with the help of robotics and automation. The course brings together automation experience from a wide range of companies, from SMEs to Fortune 31 companies. This webinar is designed to help stainless steel manufacturers understand the latest advances in robotics and automation and how to apply them for the best return on investment.

14. Registration is now open for the 2023th European Steel Construction Congress (Eurosteel2023). The 9th European Steel Construction Congress will be held in Amsterdam, the Netherlands, from September 12 to 14, 30. The conference was jointly organized by the University of Delft and ETH Zurich. In the past <> years, the European Steel Structure Conference has become an important forum for exchanges and discussions in Europe around a series of topics such as steel structure research, design and construction. The <>th European Steel Construction Congress aims to showcase the research results of academia and practitioners in steel structures and composite structures.

15. From January to February 2023, the European Steel Construction Association held 1 webinars on the theme of "Cold-formed Steel Structure Design", each meeting lasting 2 minutes. The seminar was taught by European authors on Eurocode 8 Steel Design Part 90-3.

16. From January 2023 to February 1, 9, the Singapore Steel Construction Association held the Steel Structure Engineer Certification Training, aiming to enhance the professional level of engineers and technicians. The course is tailored for steel fabrication enterprises and building construction technicians, focusing on the practicality and safety of steel structure buildings. The course mainly includes basic steel structure design, steel structure bolts, welded joints, composite material design, etc.

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2023 Market Development Environment of Steel Structure Industry: Prospects and Trend Prediction of Steel Structure Industry

NEWS

Structure of buildings

2023-05-10

（1） Fundamentals The foundation is a component of a building, which is a load-bearing component below the ground level. It supports all the loads of the upper building and transmits these loads and the self weight of the foundation to the foundation below. The foundation must be sturdy, stable, and reliable. [1] （2） Foundation The foundation is not a component of a building, but a soil or rock mass that bears the load transmitted from the foundation. The building must be built on a solid and reliable foundation. To ensure the firmness and stability of the foundation and prevent accelerated or uneven settlement, the foundation should meet the following requirements: having sufficient bearing capacity and uniform compression to ensure uniform settlement; Has the ability to prevent landslides and inclinations. [1] （3） Wall Walls and columns are vertical load-bearing components that support roofs, floors, and transmit these loads and self weight to the foundation. The functions of walls include load-bearing, maintenance, separation, and decoration. The requirements for walls are: sufficient strength and stability; Meet the performance of thermal engineering (insulation, insulation, and prevention of condensation water); Having certain sound insulation performance; It has certain fire resistance performance. Walls have different names according to different classifications, mainly including the following categories. 1. It is divided into exterior walls and interior walls according to its location in the building. External wall: The external wall is located around the building and serves as a maintenance component, serving as a wind, rain, thermal insulation, sound insulation, and other functions. Internal wall: The internal wall is located inside the building and mainly serves to separate the internal space, as well as to provide sound insulation, fire prevention, and other functions. 2. Divided into longitudinal walls and transverse walls according to their orientation in the building. Vertical wall: refers to a wall arranged along the long axis of a building. Horizontal wall: refers to a wall arranged along the short axis of a building, with the outer horizontal wall commonly referred to as a gable. 3. Divided into load-bearing walls and non load-bearing walls according to their stress conditions. Load bearing wall: refers to a wall that directly bears the load transmitted from beams, floors, roofs, etc. Non load-bearing wall: refers to a wall that does not withstand external loads. In non load-bearing walls, walls that only bear their own weight and transmit it to the foundation are called load-bearing walls; A wall that only serves as a partition space and its own weight is borne by the floor slab or beam is called a partition wall; In frame structures, walls do not bear external loads, and the walls between filled columns are called filled walls; A wall composed of lightweight wall panels suspended outside a building for decorative purposes is called a curtain wall. 4. According to the materials used, it is divided into brick walls, stone walls, small block walls, and reinforced concrete walls. 5. Divided into solid walls, hollow walls, and composite walls according to their structure. Solid wall: A wall built with clay bricks and other solid blocks. Hollow wall: A wall with cavities inside it, which can be formed by building blocks or by combining materials with holes, such as hollow blocks. Composite wall: refers to a wall composed of two or more materials, such as an aerated concrete composite panel wall.

Brick and wood structure building

2023-05-10

1. Brick and wood structure building: The main load-bearing components of this type of building are made of brick and wood. The walls and columns of the vertical load-bearing components are made of brick, while the floors and roof trusses of the horizontal load-bearing components are made of wood. The number of floors in this type of building is generally low, usually below 3 floors. Ancient architecture and buildings from the 1950s and 1960s often have this type of structure. 2. Brick concrete structure building: The vertical load-bearing components of this type of building use brick walls or brick columns, and the horizontal load-bearing components use reinforced concrete floors and roof slabs, including a small number of roofs using wooden frames. The number of floors of this type of building is generally below 6, with low cost and poor seismic resistance. The width, depth, and floor height are all limited. 3. Reinforced concrete structure building: The load-bearing components of this type of building, such as beams, slabs, columns, walls, roof trusses, etc., are composed of two major materials: steel bars and concrete. Its enclosure components such as walls and partitions are made of lightweight bricks or other masonry. The characteristics are strong structural adaptability, good seismic resistance, and durability. The types of reinforced concrete structure houses include frame structure, frame shear wall structure, shear wall structure, simplified structure, frame tube structure, and tube in tube structure. 4. Steel structure building: The main load-bearing components of this type of building are all made of steel, which has high construction costs and is often used in multi-story public buildings or buildings with large spans. [1] （4） The classification of construction methods by building construction method refers to the methods used in building construction. Cast-in-place masonry building: The main load-bearing components of this type of building are all cast and built at the construction site. Prefabricated and prefabricated building: the main load-bearing components of such buildings are prefabricated components made in the processing plant and assembled at the construction site. Partial cast-in-place and cast-in-place masonry, partial prefabricated building: some components (such as walls) of such buildings are poured or built on the construction site, and some components (such as floors and stairs) are prefabricated components made in the processing plant. [1] （5） Classification by building durability years Classification Table by Building Durability Years: Durability Year Level/Durability Year/Scope of Application Level 1/Over 100 Years/Important Buildings and Tall Buildings Level 2/50-100 Years/General Buildings Level 3/25-50 Years/Minor Buildings Level 4/Below 15 Years/Temporary Buildings

Classification by nature of use

2023-05-10

Residential buildings: refer to buildings designed for families or individuals to reside for a long period of time, and can be divided into residential and collective dormitories (residential buildings are divided into ordinary residential, high-end apartments, and villas; collective dormitories are divided into single employee dormitories and student dormitories). Public buildings refer to non productive buildings used by people for shopping, office, learning, medical treatment, travel, sports, etc., such as office buildings, shops, hotels, cinemas, gyms, exhibition halls, hospitals, etc. Industrial buildings: refer to buildings used for industrial production or directly serving industrial production, such as factories, warehouses, etc. Agricultural buildings: refer to buildings used for agricultural production or directly serving agricultural production, such as silos, breeding farms, etc. [1] （2） The number of floors of a house classified by floor number or total height refers to the natural number of floors of the house, generally calculated based on an indoor floor level of ± 0 or above; For a semi basement with daylight windows above the outdoor floor level, if the indoor floor height is above 2.20m (excluding 2.20m), the natural number of floors shall be calculated. False floors, attached floors (mezzanine), insertions, attics, decorative towers, as well as stairwells and water tank rooms protruding from the roof, do not count the number of floors. The total number of floors in a house is the sum of the number of floors above ground and underground. Residential buildings are divided into low-rise residential buildings (1-3 floors), multi-story residential buildings (4-6 floors), medium to high-rise residential buildings (7-9 floors), and high-rise residential buildings (10 floors and above) based on the number of floors. Public buildings and comprehensive buildings with a total height exceeding 24m are high-rise buildings, but do not include single story buildings with a total height exceeding 24m. A building with a total height exceeding OOm, whether it is a residential or public building, or a comprehensive building, is called a super high-rise building [1] （3） According to the classification of building structure, building structure refers to the system composed of load-bearing components (foundations, walls, columns, beams, floors, roof trusses, etc.) in a building.