Abstract
In this research, we study the use of fiber-reinforced concrete, including steel fiber-reinforced concrete in the construction of outrigger floors of a high-rise building. The definition and classification of fiber-reinforced concrete as a construction material, the methodology for calculating high-rise buildings using fiber-reinforced concrete, the advantages and disadvantages of this composite material, and the specifics of its use are formulated. The domestic and foreign experience in use of fiber-reinforced concrete is analyzed. The rationale for its use on the experience of construction of residential building in seismically active regions is given. A comparative analysis of concrete and fiber concrete use in the outrigger floors’ construction is carried out.
Highlights
Every year the level of construction complexity inevitably grows
The demand for unique buildings is formed by huge corporations and highly developed countries, where the priority is the functionality of the premises and the possibility of placing multidirectional organizations in the same building
Due to the fact that the prevailing load for high-rise buildings is wind, the main indicators of the building's operability and efficiency are horizontal movements and fluctuation pulsations. To compensate for these impacts and reduce the risks of building instability, it is reasonable to decide on using fiber concrete in the construction of an outrigger floor [4]
Summary
Every year the level of construction complexity inevitably grows. Most of the total number of modern constructions is made up of technically complex, unique objects with an increased degree of responsibility - high-rise and long-span buildings, buried structures, which creates new tasks due to ensuring the safety and reliability of buildings and structures under construction, reducing the negative impact on urban infrastructure within the zone influence.Partly, the demand for unique buildings is formed by huge corporations and highly developed countries, where the priority is the functionality of the premises and the possibility of placing multidirectional organizations in the same building.Unique buildings and constructions have always been proof of the engineering achievements, individual specialists could think over the construction of such objects, but this gave rise to problems such as irrational consumption of materials, small spans, and the huge sizes of structural elements [1,2,3].The urgency of the problem is to ensure the strength and stability of the unique building structure with a height of more than 100 meters through the use of modern new material - fiber-reinforced concrete in the construction of outrigger floors [9].The object of the study is the characteristics and behavior of fiber-reinforced concrete in the supporting structures of the outrigger floor of a unique building. Most of the total number of modern constructions is made up of technically complex, unique objects with an increased degree of responsibility - high-rise and long-span buildings, buried structures, which creates new tasks due to ensuring the safety and reliability of buildings and structures under construction, reducing the negative impact on urban infrastructure within the zone influence. Unique buildings and constructions have always been proof of the engineering achievements, individual specialists could think over the construction of such objects, but this gave rise to problems such as irrational consumption of materials, small spans, and the huge sizes of structural elements [1,2,3]. The urgency of the problem is to ensure the strength and stability of the unique building structure with a height of more than 100 meters through the use of modern new material - fiber-reinforced concrete in the construction of outrigger floors [9].
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