Application of new constructive solutions of high buildings’ zero cycle during building in difficult engineering and geological conditions

Recently, there has been a significant reduction in the number of favorable areas for construction of buildings and structures, which leads to the need to build various facilities in special conditions, so in areas with difficult engineering-geological and mining-geological conditions of construction, which are deteriorating due to natural and man-made factors. It is necessary to assess the possibility of deformation of structures located on foundations with possible uneven deformation in the practice of design and operation. Only with reliable and accurate determination of the stress-strain state of foundation structures and soil mass the service life of buildings and structures can be predicted. Calculations performed with the help of PLAXIS and LIRA programs allowed to analyze the stress-strain state of the soil mass and the stability of the foundations with the same soil base (layer thickness and physical and mechanical properties), loads and boundary conditions: Option I – ordinary solid monolithic reinforced concrete foundation slab; Option II – proposed a solid monolithic reinforced concrete slab with a system of cross beams of different stiffness (patent № 13794). The validity of the theoretical forecast of the behavior of the foundation structure, which interacts with the unevenly deformed base, can not be obtained on the basis of the regulatory framework. The possibility of using a foundation with a system of cross beams of different stiffness in order to increase the reliable operation of high-rise buildings was experimentally and theoretically proved.

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