History of CFT steel sections
Concrete-filled steel sections, abbreviated CFT, are a group of mixed sections that use the common function of steel in the environment and concrete in the central part for freight.
The main idea of the origin of these sections is the combination of concrete and steel, the use of these benefits is the advantages of each of these materials. This combination leads to the creation of a structure with superior features compared to conventional concrete and steel structures.
Application of steel sections filled with concrete
The scope of application of concrete-filled steel sections includes short-term to high-level structures. In high-rise, ultra-long-range structures, the bending frame with CFT columns usually combines with another side load system such as reinforced concrete shear core, steel shear wall, or concrete.
Some CFT-level executive projects include:
Taipei Tower 101
Plaza Building
World Trade Building
Canton Tower Structure
Zhang Hua Jialing Bridge
Advantages of filled sections with concrete
The main economic advantage of these sections is the reduction of the amount of steel consumed and the result of the cost of the project and at the same time improving the quality and performance of the structure. The use of CFT sections can improve the set of behavioral characteristics of the structure, including the optimal use of steel and concrete resistance, the adjustment of the local buckling of the column steel section, the increase in useful life and resistance. Other benefits of CFT sections include:
- Weight loss of steel used in the column
- Reduce the cost and time of construction and installation of structures using HSS sections
- Eliminate or reduce the cost of protecting columns against fire
- Increase useful space
- Improving the quality of construction
- Ability to use column sections with the same dimensions in height
Advantages of concrete-loaded steel sections (CFT)
Weight loss of steel used in the column
Reduce the cost and time of construction and installation of structures using H.S.S sections
Eliminate or reduce the cost of protecting columns against fire
Increase useful space
Improving the quality of construction
Ability to use column sections with the same dimensions in height
Bending, axial and shear strength
Improving concrete performance
High energy depreciation and capacity
Increased lateral stiffness of the compression member
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انتشارات: سیمای دانش
مولف: دکتر اباذر اصغری، دکتر علیرضا رضوی
تعداد صفحات: ۳۲۱ صفحه
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