Experimental tests of bonded steel-OSB composite beam
Anna Derlatka, Piotr Lacki, Wojciech Więckowski, Przemysław Kasza, Marta Pomada
Abstract:
Rapidly rising metal prices force scientists to develop innovative materials. Therefore, composite structures, including sandwich structures, are gaining more and more popularity. The paper presents an assessment of a composite beam which is an alternative to a steel beam. The aim of the work was to determine the bending resistance of the steel-OSB composite beam. The subject of the three-point bending tests was a sandwich beam made of three 25 mm thick oriented strand boards and two 2 mm thick steel sheets. The components of the beam were joined with a polymer glue. The beam had a rectangular section 80 mm wide and 50 mm high. Its length was 800 mm. The tested bending capacity of the beam was 1 kNm. The work also included tests of the mechanical properties of the steel sheets used for the construction of the beam. As a result, the weight and consumption of steel in the steel-OSB composite beam and the analytically designed steel beam were compared.
Keywords:
composite beam; steel; oriented strand boards; adhesively bonded joints
The theme of ruins in contemporary art
Tatiana Goranskaya, Nina Kazhar
Abstract:
The article analyzes various interpretations of the concept of “ruin” in the history of culture. It is shown that the ruin, as a “symbolic form”, on the one hand, is a link connecting fragments of various historical eras and cultural pictures of the world with each other, and on the other hand, it embodies the virtual reality of being, a possible global culture and/or catastrophe. The authors singled out such artistic interpretations of the ruins in contemporary fine arts as: a historical ruin; the ruin of the present and/or the “lost future”; semantic construction; object (architectural fragment) as a sign of place and time.
Keywords:
ruin; space-time; architectural heritage; visual arts; virtual reality
Damian Jończyk, Yaroslav Blikharskyy
Abstract:
Glued laminated timber is now often used in construction. Most often, glued laminated timber is used to make load-bearing beams, in which there is often a need for architectural reasons to make openings for various types of installations. These openings weaken the stiffness. An increasingly common solution is to reinforce wooden beams with longitudinal composite elements. The paper presents numerical calculations analyzing the influence of longitudinal composite reinforcement in the form of BFRP bars on the deflection of glued laminated timber beams with openings.
Keywords:
timber; glued laminated timber; FRP; reinforcement; holes
Legal aspects of building a house up to 70 m2 without permission. Is it worth it?
Katarzyna Kaim, Robert Kruzel
Abstract:
The article presents the current legal situation concerning the construction of a house of up to 70 m2 without a permit. The issue of the profitability of this activity is discussed. An analysis was made of the provisions resulting from the modification of individual provisions Act of the July 7th 1994 – Building Law. The benefits resulting from the introduction of amendments to the said Act have been identified. The defi-ciencies related to the construction of a house of up to 70 m2 without a permit were identified, comparing the legal aspects resulting from the construction of a detached house and a recreational house of the same size without a permit. A cost-comparative analysis has been carried out.
Keywords:
building law; lack of permission; cost-effectiveness
The architectural image of the Church of St. Charles Borromeo in Pinsk
Nastassja Kalasoŭskaja, Nina Kazhar
Abstract:
The architecture of buildings in the Baroque style is considered in the context of European socio-cultural ties, artistic and aesthetic views of the 17th-18th centuries. Issues of volumetric-spatial composition and artistic directions of stylistics of cult objects are considered, the issues of peculiarities of the organization of the plan, form-formation and structure of cult buildings are touched upon. The aim of the study was to systematize and generalize historical information about the Church of St. Charles Borromeo in Pinsk, identify special compositional techniques and interpretations of the Baroque style, establish artistic and aesthetic relationships with style objects in the context of a single polycultural space of the period under consideration. A stylistic relationship has been established between the architectural image of the Karl Boromeo church, erected in Pinsk in 1770-1782, with the architecture of the European Baroque. The side pavilions of Karlskir-che in Vienna were the prototype of the Bartholomite temple in Pinsk, which was erected later and much more modest in scale and set of compositional elements. During the Baroque period, various religious build-ings were erected, the architectural appearance of which was formed in the course of rethinking by regional architects of already existing significant European objects. The architectural composition of the buildings of the Catholic Church depended on the founding priests, who sought to conform to progressive ideas and uniformity within religious societies.
Keywords:
baroque architecture; hall church; architectural composition
Investigation of advanced self-healing concrete applications in construction
Kasim Korkmaz, Adam Bogedain, Luay F. Al-Durzi
Abstract:
Preventing cracks in concrete is a critical issue in the construction industry. The self-healing concrete phenomenon can be a good solution for mitigating cracks in concrete without any direct intervention. Construction industry researchers are developing many different self-healing concrete materials using a variety of sub-materials and techniques. This research project investigates self-healing concrete applica-tions that use various cementitious materials, such as fly ash, slag, and polymeric materials, which can easily be applied in the construction industry. To present this application, experimental tests on different concrete mixes have been conducted using Ultrasonic Pulse Velocity and compression tests. For this experimental study, samples were placed under various environmental conditions, such as water-saturation and frozen temperatures. The results of the investigation are detailed and discussed in the study. The graphs illustrate behavioral differences between fly ash, slag, and polymeric materials. Based on the experimental results, healing capacity existed in all mixture types in the saturated and frozen environments. In the results, samples were characterized by good mechanical properties represented by damage resistance, aggregate/mortar adhesion, and compressive strength.
Keywords:
construction industry; concrete; surface cracks; polymers
Mariusz Kosiń, Inga Iremashvili
Abstract:
In Poland, the construction of single-family houses based on brick technology is dominant. The investor, faced with the choice between traditional and frame technology, should carry out, inter alia, an analysis of the needs, the expected way of using the building and meeting the requirements regarding the physics of the building. The paper compares the thermal and humidity parameters of the thermal bridge of the wall corner made in both technologies. Computer simulations based on the finite element method were used to perform the calculations.
Keywords:
wooden skeleton; brick technology; FEM; thermal and humidity
Automation and robotization in civil engineering
Izabela Major, Givi Gavardashvili
Abstract:
The construction industry plays a vital and significant role in national and global economies. Its development is closely related to automation and robotization processes, which are still much less developed in the con struction industry than in other industries, such as the manufacturing sector. This contributes to both the low productivity of the construction industry itself and the risky working conditions. Due to the rapid develop-ment of computer hardware and software over the last few decades, significant progress can be observed in the development of work related to robot control modules as well as work related to design, mapping and planning. This article concerns the current and increasingly important issues related to the need to increase the pace of construction investments as well as the issue of the use of technology in the process of automation and robotics in civil engineering. The authors of the article showed how both of these processes contribute to the development of the construction sector. This paper presents the advantages of the intro-duction of BIM technology and shows how great a role this technology can play in the automation and robotization of construction processes. As an excellent example of robotization of construction processes, constantly developing 3D printing technology is presented in the article.
Keywords:
automation; robotization; 3D printing; civil engineering
Facility management using the Building Information Modeling (BIM) – review of solutions
Jacek Nawrot
Abstract:
This paper deals with the issue of building management options based on the BIM model. The benefits of using BIM for Facility Management (FM) technology were discussed. The barriers encountered when trying to use this technology during the Operations & Maintenance (O&M) phase were also presented. Potential situations that a facility manager may encounter when trying to implement BIM to FM were analyzed (no BIM model, incomplete BIM model, properly functioning BIM model with FM function). Each of these cases was discussed in detail, illustrated with examples, and the procedure for each of them was proposed. It has been shown that in each of the analyzed situations it is possible to use the BIM for FM model. The most effective solution for the facility manager is to include the FM function in the BIM model at the stage of its creation (design phase) and its updating during construction (construction phase).
Keywords:
Building Information Modeling (BIM); Facility Mamagement (FM); Operations & Maintenance (O&M)
The future of the economy lies in nuclear energy, electric propulsion and hydrogen energy sources
Marlena Rajczyk
Abstract:
The article is devoted to the prospect of obtaining electricity from nuclear energy technology obtained in fast neutron reactors cooled with liquid lead. The paper presents an analysis of the methods of accumulating electricity in battery systems through the development of innovative technologies, as well as technical and material solutions for prospective batteries. It also identifies alternative methods of mass storage of efficient hydrogen energy sources.
Keywords:
technologies and sources of electricity; technical solutions for generating and supplying electricity
Site-won asphalt in the light of the applicable law
Katarzyna Regulska
Abstract:
The article covers the issue of changing the provision in the Regulation of the Minister of Climate and Environment on the criteria for the loss of waste status for site-won asphalt. The necessity was indicated to recycle complete road construction rubble material in order to achieve a closed cycle economy, the aim of which is to minimize waste generation and increase its reclamation and reuse.
Keywords:
site-won asphalt; asphalt granulated product; recycling; bituminous mixtures
Nina Sołkiewicz-Kos
Abstract:
In this article the authors present current issues related to shaping public spaces within the academic campus of the Czestochowa University of Technology. The development of public zones has a direct impact on the architectural and urban structure of both the students' facilities and the space between them. This space is equivalent to cubature objects. It not only complements and enriches the surroundings of the building, but also provides a platform for stimulating change processes in line with the needs of the academic community. The article describes activities related to the functional and spatial solutions of open areas of the Czestochowa University of Technology. Attention has been paid to the development of the entrance zones of the main university buildings.
Keywords:
urban planning; architecture; public space
The concept of developing green areas as an example of creating a social and recreational space
Nina Sołkiewicz-Kos, Malwina Tubielewicz-Michalczuk
Abstract:
The article presents the tendencies consisting in planning an integrated space between the building and the existing surroundings. The coherence of these activities increases the value of built-up spaces, gives meaning to open areas and affects the quality of the human environment. The spatial composition, being constantly perceived by people, influences their psyche, shapes sensitivity, tastes and aesthetic feelings, and through everyday reception it evokes higher-order sensations in the subconscious, from identification with the place of residence to the sense of identity with it. In everyday life, the correct spatial composition can be a factor that gives a person relaxation and rest. It happens when the composition of the surrounding interiors is adjusted to the user's scale, allowing him to perceive the surrounding space primarily from the ground level. In this article, the authors present current issues regarding the shaping of the spaces integrated between the facility and the existing surroundings within the academic campus of Czestochowa University of Technology.
Keywords:
urban planning; architecture; public space
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