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The article presents the suggestions for the functional zoning of the architectural improvement of the territories of churches, dividing into two main zones: public and service, which, in turn, are proposed to be divided into more compact subzones. A specific set of elements of architectural improvement is also proposed to fill the functional zones and subzones. The specifics of the organization of...
One way of improving the production process for asphalt concrete pavements is their modification with plasticizers or additives. The current tendency, when searching for innovative methods to increase the quality of manufactured asphalt concrete mixtures, is their modification with rubber dust, which is on e way of improving the hardness characteristics of asphalt concrete pavements while, at the...
Scientific and technical progress (STP) in construction leads to changes in engineering, technology, organization of construction, forms and methods of management of construction production. The role of scientific and technological progress is to find production reserves to reduce the time, labor intensity, cost of construction and improve quality by creating new and improving existing construction...
The problem of analysing complex steel structures in relation to analytical and numerical tests of a single structure element has been presented. The aim was t o demonstrate the compliance of the chosen methods for determining the strength parameters of a cantilever beam and to select the best cross-section for the optimization of the structure. The beam deflection and the value of the maximum reduced...
In the structure of insulating glass units (IGUs) there are gas-filled gaps. Therefore, changes in atmospheric pressure and temperature, as well as the action of wind, result in a load on the component glass panes. However, the deflection of the panes connected with climatic loads results in an interaction of the gas closed in the gaps, which partially reduces climatic influences. The aim of this...
The shaping of structural elements of flexible discs formed from synthetic diamond powders on synthetic binders is one of the current problems facing researchers when creating new, highly effective machining tools for the processing of mineral materials. Over many years, natural stone and particularly hard types of rock have been used for and still remain a noble, durable and highly appreciated building...
The paper presents an evaluation of joints resulting from adhesively bonded aluminum sheets. The aim of the study was to assess the possibility of applying this type of connection for the construction of composite beams. The results of experimental tests on the shear test of joints are presented. Four types of connectors were the subjects of the research. The joints of the same geometry were made...
The aim of the work is to find the relationship between the effective lengths of fillet welds determined by the directional method and the simplified method in a tee joint loaded in any way. This causes a complex state of stresses in the weld. The work shows for which load s it is important to use particular calculation methods in order to obtain a more economical solution. Thanks to this and careful...
The provision of a microclimate for poultry houses with the help of radiant heating systems has become widespread. Infrared heating systems, unlike other systems for providing the microclimate of poultry houses, provide local heating. When placed correctly, infrared heaters heat only the area where the poultry is located. When using infrared heaters, it is possible to achieve the necessary conditions...
This article is a systematic review of the literature on the energy efficiency and energy efficient construction of roofs. This paper considers seven types of roof, including insulated, double-skin, cool roofs, green roofs, roofs with photovoltaic panels, biosolar roof and roof ponds. The review covers the main characteristics of each roof, the reduction of heat flux and the appropriate climate for...
In this study, the non-preloaded bolted connection of a roof girder, commonly used in steel halls with a frame system, was analyzed. Two options were considered: a connection before reinforcement and one reinforced by adding a new row of bolts. For both of the analyzed variants, analytical calculations were performed based on the component method and numerical calculations using the Finite Element...
This article describes, based on the failure of a public utility building structure, the issues related to the destructive impact of vibrations on the ground in connection with the load-bearing structure of the facility. An external source of wave propagation was identified, located in the immediate vicinity of the analyzed building. Additionally, errors in the interpretation of the behavior of the...
The methods of designing tall buildings are based mainly on the analysis of the influence of aerodynamic effects on the work of cross-sections of individual reinforced concrete elements: columns, slabs and beams. On the example of a building on a rectangular plan with dimensions of 36 × 60 meters and a height of 400 meters, a detailed analysis of the operation of selected reinforced concrete columns...
Continuous urbanisation processes draw attention to the formal and functional solutions of urban spaces. They are a response to contemporary social and economic requirements. This paper presents examples of the evaluation of urban spaces. The activities concerning the context of the place are based on referring to the existing surroundings, its past and present, and are part of contemporary trends...
The article discusses the causes of defects in concrete floors in multi-storey car parks. The most common damage to concrete floors, affecting the serviceability and durability of objects, is presented. Guidelines were formulated for designers and floor contractors to ensure the durability of concrete floor surfaces in underground garages as well as in open and closed multi-storey car parks. The article...
The article presents a solution for a new type of concrete wall block, which transfers loads from the entire building and additionally dampens vibrations from the external medium directly inside the block. The shape of the new type of concrete block was described, as well as the method of its execution and basic application. An important element was the development of the location of the through holes...
Four sets of alkali-activated aluminosilicate composites based on ceramic precursors were studied in terms of their characterization by mechanical fracture and microstructural parameters. Composites made with brick dust as a precursor and with alkaline activator variants of differing silicate modulus (Ms = 0.8, 1.0, 1.2, 1.4 and 1.6) were investigated. The filler used with first two sets of composites...
In designing building structures, the most important stage is the selection of appropriate construction solutions, depending on the architectural design, purpose of the facility and the conditions in which the designed facility will be located. When choosing the type of materials from which single-family houses are erected, traditional solutions, such as concrete and brick building elements, are most...
Performing a numerical analysis in the nonlinear range requires entering appropriate input data for the material. For this purpose, the actual stress-strain characteristic is used for the finite element calculation. In order to establish the actual stress-strain curve, a simple tensile test of a steel specimen was performed. The stress-strain curve obtained from the numerical analysis was compared...
The manuscript compares the thermal efficiency of solar collectors with various types of the active surface. The research was carried out on a specially constructed measuring stand that maintains repeatable and constant conditions for measuring collectors’ thermal parameters. The research results show that a collector's active surface roughening allows for about 12% increase in its thermal efficiency,...
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