title: ÐÐ»Ð¸ÑÐ½Ð¸Ðµ ÑÐµÐ¾Ð»Ð¾Ð³Ð¸ÑÐµÑÐºÐ¸Ñ ÑÐ²Ð¾Ð¹ÑÑÐ² Ð²ÑÑÐ¾ÐºÐ¾Ð¿ÑÐ¾ÑÐ½ÑÑ Ð±ÐµÑÐ¾Ð½Ð¾Ð² Ð½Ð° Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð½Ð¾-Ð´ÐµÑÐ¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð½Ð¾Ðµ ÑÐ¾ÑÑÐ¾ÑÐ½Ð¸Ðµ Ð½ÐµÑÑÑÐ¸Ñ ÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¸Ð¹ Ð²ÑÑÐ¾ÑÐ½ÑÑ Ð·Ð´Ð°Ð½Ð¸Ð¹
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: The influence of the rheological properties of high-strength concrete on the stress-strain state of the load-bearing structures of high-rise buildings
Creators: name: ÐÐ°Ð²Ð»ÑÑÐºÐ¸Ð½, ÐÐ°ÐºÑÐ¸Ð¼
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2021
Subjects: ÐÐµÑÐ¾Ð½
Ð¡ÑÑÐ¾Ð¸ÑÐµÐ»ÑÑÑÐ²Ð¾
ÑÐ¿ÑÑÐ³Ð¸Ðµ Ð´ÐµÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¸
Ð¿Ð»Ð°ÑÑÐ¸ÑÐµÑÐºÐ¸Ðµ Ð´ÐµÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¸
Ð¿Ð¾Ð»Ð·ÑÑÐµÑÑÑ
Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð½Ð¾-Ð´ÐµÑÐ¾ÑÐ¼Ð¸ÑÐ¾Ð²Ð°Ð½Ð½Ð¾Ðµ ÑÐ¾ÑÑÐ¾ÑÐ½Ð¸Ðµ
elastic deformations
plastic deformations
creep
stress-strain state

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description: The work is devoted to the study of the rheological properties of high-strength concrete and their influence on the stress-strain state of the load-bearing structures of high-rise buildings. The purpose of the thesis is to assess the influence of the rheological properties of high-strength concrete on the stress-strain state of load-bearing structures of high-rise buildings using the Lira-CAD software package. The research set the following goals: 1. Modeling a three-dimensional model of a high-rise building (height more than 100 meters), taking into account the actual work of materials in structures in the limiting state by means of the Lira-CAD software package. 2. Calculation of the model of a high-rise building using the laws of nonlinear deformation of concrete. 3. Analysis of the stress-strain state of the bearing columns of a building using the laws of nonlinear deformation of concrete. 4. Calculation of elements of a multi-storey building using nonlinear spatial bar finite elements with the specification of the parameters of plasticity and creep of concrete. 5. Assessment of the influence of the rheological properties of high-strength concrete on the stress-strain state of high-rise building structures. A computational model of a high-rise building was carried out in the Lira-SAPR software package, and an analysis of the stress-strain state of structures was carried out using various diagrams of concrete deformation. The rheological properties of concrete (creep) were simulated and the influence of the loading time and the moment of application of the load on the change in the stress-strain state of supporting structures was analyzed. As a result of the work, it was shown that taking into account the rheological properties of concrete when calculating structures can lead to other calculation results, namely, the parameters of the stress-strain state of structures, which can be critical when erecting high-rise structures.