EXPERIMENTAL AND THEORETICAL STUDIES OF THE STRESS-STRAIN STATE OF WOOD-CONCRETE AND WOOD-GYPSUM MASONRY
Pages 61 - 65
Results of the theoretical analysis of experimental diagrams of deformations of columns made of wood sawdust and concrete mixtures and of wood sawdust and gypsum mixtures exposed to uniaxial compression are provided in the paper.
The findings of the prototype testing include identification of the two areas of deformations: areas of elastic deformations and areas of intensive development of deformations. The first area of partial elastic deformations is characterized by the linear stress function, while the second area demonstrates that this relationship is nonlinear. Permanent deformations appear as of the startup of the loading process and disproportionate stress is demonstrated throughout the deformation process. However, in the first area (partial elastic deformations) residual deformations are so small that this area is considered as the area of "the area of incomplete elasticity".
DOI: 10.22227/1997-0935.2012.12.61 - 65
- Tsepaev V.A., Lebedev M.A., Likhacheva S.Yu. Polzuchest’ kladki iz opilkobetona [Creep of the Wood Concrete Masonry Work]. Zhilishchnoe stroitel’stvo [Residential Housing Construction]. 2010, no. 3, pp. 25—27.
- Tsepaev V.A., Likhacheva S.Yu., Kondrashkin O.B. Dlitel’naya prochnost’ kladki iz gipso-opilochnykh kamney [Durability of Wood-gypsum Concrete Block Work]. Privolzhskiy nauchnyy zhurnal [Volga Region Scientific Journal]. 2009, no. 3, pp. 39—42.
- Tsepaev V.A., Likhacheva S.Yu., Shuryshev I.N. Kratkovremennaya prochnost’ kladki iz opilkobetonnykh kamney pri odnoosnom szhatii [ Short-term Strength of Sawdust Concrete Block Work Exposed to Uniaxial Compression]. Privolzhskiy nauchnyy zhurnal [Volga Region Scientific Journal]. 2009, no. 4, pp. 13—18.
- Tsepaev V.A. Dlitel’naya prochnost’ i deformativnost’ konstruktsionnykh drevesno–tsementnykh materialov i nesushchikh elementov na ikh osnove [Long-term Strength and Deformability of Structural Wood-concrete Materials and Bearing Elements Made on Their Basis]. Nizhniy Novgorod, NNGASU Publ., 2001, 480 p.
- Likhacheva S.Yu., Kondrashkin O.B. Issledovaniya protsessov deformirovaniya kladok na drevesnykh zapolnitelyakh pri odnoosnom kratkovremennom szhatii [Studies of Processes of Deformation of Masonry Work That Incorporate Wood Fillers If Exposed to Short-term Uniaxial Compression]. Privolzhskiy nauchnyy zhurnal [Volga Region Scientific Journal]. 2011, no. 1, pp. 21—25.
- Berg O.Ya. Nekotorye voprosy teorii deformatsiy i prochnosti betona [Some Issues of the Theory of Deformation and Strength of Concrete]. Izv. vuzov. Str-vo i arkhitektura [News of Institutions of Higher Education. Construction and Architecture]. 1967, no. 10, pp. 41—55.
- Mel’nichenko O.V. Eksperimental’noe issledovanie dlitel’noy prochnosti betonov vysokikh marok [Experimental Study of Long-term Strength of High-grade Concretes]. Izv. vuzov. Str-vo i arkhitektura [News of Institutions of Higher Education. Construction and Architecture]. 1976, no. 5, pp. 85—88.