Structural calculation approaches to the astimation of the technical state of constructions of monolithic buildings
Journal Title: Вісник Одеської державної академії будівництва та архітектури - Year 2017, Vol 1, Issue 69
Abstract
The traditionally carried out evaluation of the technical state of monolithic reinforced concrete constructions can be qualitatively complemented by the use of the offered structural calculation approach. The essence of such approach is the analysis of damage which characterizes the active elements of a structure of the construction – technological cracks and internal surfaces of section, related to their internal and external safety. The objects of analysis are vertically formed elements of framed and monolithic (columns, diaphragms, elevator shafts) and monolithic (internal and external walls, partitions) residential buildings, according to the results of the research of which the active elements (TC, ISS) were fixed and damage coefficients within the fixed area on the levels of structural inhomogeneity «solution part - coarse aggregates» and «product» were calculated. In addition, in the course of work the actual problem of analysis of the influence of reinforcement on the formation of integral damage of the examined reinforced concrete constructions was solved. It is shown that tensile stresses from reinforcement, which modulus of elasticity is sequence higher than that of concrete impose on internal strain of the hardening concrete, acting both horizontally and vertically. The additional calculations of deformations, which are carried out on the basis of phenomenological approach, allow to quantitatively estimate possibility of appearance of «visible» cracks and the influence of reinforcement on forming a structure of the construction.
Authors and Affiliations
V. G. , Sukhanov, V. N. , Vyrovoy, Y. V. , Lysenko
Mechanism of strengthening of embankments on weak bases
The geocell construction provides stability of a high embankment on a weak ground. When erecting a high embankment on weak soils, the geocell mattress is an effective alternative to the pile foundation or the replacement...
Decorative concrete with hybrid glass fibre: design and first results of the experiment
The first results of experiment in the study aimed at getting high performance decorative concrete are presented. Varied in the experiment were the content of zeolite as active mineral additive, ratio of fine to coarse s...
Determination of the lattice optimal geometric shape in the combined arch system for circular plan buildings
The methodology of determining the optimal geometric shape of the lattice in the combined arch system was developed under conditions of tensile capacity of all elements of the flexible lattice and the minimum material co...
Retrospective analysis of building codes requirements for frame buildings earthquake engineering
The paper discusses the main features of building codes on the construction and maintenance of buildings in seismic areas. Main attention is paid to changes in building codes requirements for frame buildings, as well as...
Coverings for ensuring the movement of individual environmental transport
This article analyzes the state and development of bicycle lanes infrastructure in European countries. Comparative data on the load of bicycle transport in some countries of the world are given in the work (number of bic...