STRESS-DEFORMED STATE CYLINDRICAL SHELL
Abstract
The paper contains the results of experimental and theoretical research of the stress-strain state of reinforced concrete roof structure which has complex internal and external geometries. By the complex external geometry refers the spherical surface of the shell shape and by complex internal - that it contains voids filled with insulation material. The paper assessed the technological aspects of the production of monolithic reinforced concrete structures specified form, fabricated by method of wet shotcrete. In turn, built finite element model of the structure allows analyzing the impact of qualitative and quantitative attributes describing the load applied to the surface of the shell to the nature of its deformation. Experimental verification of the theoretical data was obtained in the laboratory. Investigated shell model with plan dimensions was 2.2 x 2.2 meters. The loading was carried out by hydrostatic method (by the device over the surface of the shell a special "honeycomb" pool with filled water). Designed for the experimental measurement system has allowed building the package surface shell deformation under various schemes of loading. These findings determine more correct display of load considered shell by snow load.Key words: stress-strain state, cylindrical shell, the system "Monofant".
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