THE WORK RESEARCH OF THE THIN-WALLED SHELL "HYPERBOLIC PARABOLOID" MADE OF SFRC UNDER THE ACTION OF SINGLE LOADS USING THE LIRA-SAPR SOFTWARE

Abstract

In the article presented the design of experimental research and calculation of thin shell named “Hyperbolic Paraboloid” under the action of single loads using the LIRA-SAPR software.

Presented the feasibility of application of LIRA-SAPR software that allows to calculate and investigate the overall stability of structure models, test the strength of the elements on the various theories of destruction. The basis of calculations using the computer simulation design of steel fiber concrete thin shell based on finite element method.

During the research in modeling using LIRA-SAPR software is described in detail the process of triangulation of the thin shell construction named “Hyperbolic Paraboloid” into finite elements, on the basis of the necessary conditions. In the simulation of material design applied finite element №234, that takes into account the physical nonlinearity of the material. The nonlinear deformation law was chosen as: "Law No. 14 – piecewise-linear law of deformation". Numerical values for the state diagram "Deformation-Tension" (s-e) was made on the basis of the results obtained during experimental research designs.

In accordance with the purpose of this research was conducted the modeling of the application of an external equable distributed load over the entire surface of the thin shell as analogous to the snow load. Obtained theoretical and experimental results for testing thin shell named “Hyperbolic Paraboloid” for loading capacity.