Syomchina M. Features of the stress-strain state of brick five storeyed dwellings building at a reconstruction in the conditions of landslip soils

Subject of inquiry is tensely-deformed state (TDS) of five storeyed brick dwellings building at their reconstruction in the conditions of uneven deformations of landslip soils of founding. Thesis objective is new decision of scientific problem of complex account of parameters in the calculation models of co-operation of building with the ground for the quantitative estimation of their influence on TDS and estimations of backlogs of bearing strength of constructions of brick building at a reconstruction, and also development of methodology of the specified calculation and prognostication of work of brick building that is exploited in the conditions of landslip soils with the use of method of eventual elements (MEE). Research methods: theoretical and experimental methods of structural mechanics, theory of calculation of building constructions; analytical - for checking calculations and testing of calculation models; numeral - МEE for a calculation and testing of models. Theoretical and practical results: the adequate design of co-operation of brick building is provided with the ground landslip grounds at their reconstruction with the purpose of further reliable and accident-free exploitation; complex methodology of determination of changes TDS of brick building is worked out at their reconstruction taking into account prestrains, place of location and phasicness of soakage, and also recommendation on drafting of calculation charts of building at a reconstruction in the conditions of landslip soils; experience of exploitation is generalized and data are systematized about the technical state of brick five storeyed dwellings building Zaporizhzhya, classification is conducted on the types of deformations and reasons of their display. Novelty of the research: conformities to law of influence of place of location of source and phasicness of soakage of landslip soils of founding at determination of TDS of building are educed; the measure of influence of prestrains of building is certain from the uneven sinking of founding at determination of TDS of brick building; worked out to recommendation on drafting of adequate calculation models of co-operation of building with the ground grounds in the conditions of landslip soils at a reconstruction taking into account prestrains; the complex method of account of influencing parameters is first worked out at determination of TDS of the brick building erected in the conditions of landslip soils at the estimation of their technical state or at their reconstruction. Implementation extent: the results of researches drawn on private enterprise "KROZIS" at implementation of static calculations of the system "building-founding" for the ground of project decisions on the reconstruction of objects in Zaporizhzhya; the results of researches are inculcated in the educational process of the Zaporizhzhya state engineering academy. Range of application: projects on the reconstruction of brick building.