The use of the system “Engineering nonlinearity 2” PK LIRA-CAD for calculation of panel buildings along with structures of the frame of ground non-residential floors

To obtain flexible planning solutions for the ground floors of large-panel buildings for the purpose of placing public spaces, a combined structural scheme of the building is used – a monolithic frame of the ground non-residential floors and a wall system for the upper residential floors. From the point of view of the calculation of this type of buildings, a number of questions arise. One of the main issues is the issue of modeling the joint work of the prefabricated wall panel and monolithic structures of the frame of the lower floors. The article deals with the problem of interaction between prefabricated and monolithic structures with the use of a finite element of the horizontal joint and the system «Engineering Nonlinearity 2» PC LIRA-CAD. It is shown that the use of special finite elements of the joint makes it possible to correctly simulate the joint of prefabricated elements with each other, as well as with monolithic structures of non-residential floors and the foundation of the building (having its flexibility depending on the design solutions). It is established that the application of the system «Engineering Nonlinearity 2» makes it possible to take into account the nonlinear behavior of reinforced concrete elements and their joints when calculating the determining combination of loads with due regard for the stages of construction. Linearization of the model makes it possible to calculate time loads and impacts, including dynamic ones.

R.Yu. VODOPIANOV, Engineer (This email address is being protected from spambots. You need JavaScript enabled to view it.)
V.E. GUBCHENKO, Engineer (This email address is being protected from spambots. You need JavaScript enabled to view it.)

OOO “Lira service” (4a, Off. 5, Plekhanova Street, 111123, Moscow, Russian Federation)

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