The operational decision-making software for the development of re-engineering and its application to the capital construction project can be integrated into the information system for managing the corresponding activity, the use of which requires internal corporate regulation.
Re-engineering of a capital construction project is a change in the qualitative and quantitative characteristics of a building, construction at the operational stages in the form of reconstruction, technical re-equipment, repurposing and renovation, as well as the integration of all or part of these forms. Taking this into consideration, it can be asserted that re-engineering of the capital construction object is considered as one of the elements of urban development.
The cost justification for investments indicates that the construction cost indices should provide a reflection of the existing situation in the economy, and locally in the fields of the construction industry, logistics, technological support, construction contracts.
A conclusion was made as a result of a technical and economic comparison of the heatinsulating materials for walls in low-rise construction (solid brick, breeze block and clay block) that, despite its high cost, clay blocks is the most eff ective material for building walls of a residential building. The choice in favour of this material helps to reduce heating costs during the entire life of the building, which in its turn leads to energy saving.
The principles of creating composite cement binders based on non-utilizable bottom ash mixtures are given. The analysis of the chemical composition of samples of bottom ash mixtures has been carried out. Studies have been carried out to determine the basic physical and mechanical properties of binders. Various methods of introducing bottom ash mixture into a binder are considered and its impact on the basic properties of a composite binder is studied.
A brief description of the nuances of the installation and design of the underfloor heating system is given, recommendations for the installation of a «warm floor» are given.
Polystyrene foam is a heat-insulating polymer material, which is very popular in construction of low budget and low-rise buildings (country houses, garden houses, pavilions, accommodation units, etc.). But the disadvantage of polystyrene foam is its high fire hazard. Previous studies have shown that polystyrene foam is a highly flammable and combustible building material. Therefore, the development of fire-retardant coatings that reduce the combustibility of polystyrene foam, preserve its heat-insulating properties and do not significantly increase the cost of the material, remains an urgent problem. The method of deposition of fire retardant coatings on the surface, which is the cheapest and most affordable, is considered as one of the ways to reduce combustibility. The study investigates non-flammable fire retardant coatings for polystyrene foam. The most effective fire retardants were selected as a result of the experiments.
The article defines the intermodal transport hub and station, presents a hierarchy of these objects in city-planning, analyses the multimodal transport system of the Baku’s metropolitan area and its core, considers the inclusion of infrastructure of alternative mobility means in the existing structure of intermodal nodes and stations of the Baku’s metropolitan area, presents a set of measures for implementing the concept of the development of multimodal transport infrastructure in the metropolitan area of Azerbaijan Republic.
An effective solution to the problem of fixing the retaining wall of the underground three-level parking by an additional device in the upper part of the injection (drilled) anchor piles is proposed. The analysis of the results of static tests for injection anchor piles with the construction of graphs related to the dependence of pile settlement on load is presented. Calculations were performed to determine the main parameters of anchor piles according to the results of numerical simulation: length, pitch and bearing capacity. It is acceptable to use the Plaxis 2D software package for numerical simulation of the joint eff ect from the retaining wall and injection anchor piles. The results of the analytical solutions presented in the article make it possible to determine the displacement of the injection anchor pile from the current pulling load in comparison with the control field static tests in clay soil with an accuracy of 22%.
