The cost of producing one cubic meter of concrete structure, depending on the structure's shape, type, and complexity, can be variously high. The cost of concrete, reinforcement, formwork, and labor ratio varies. But unlike the cost of concrete and reinforcement, which tend to be similar in the terms of the conditions of a particular construction project, the cost of formwork and work with it are different for different contractors. It often depends on the appropriateness of the formwork system used, the optimal placement of the formwork sets, the minimization of downtime, and the efficiency of the carpenters' work. Formwork modeling in the construction preparation phase intervenes in this planning area, where construction sources are defined and quantified, and the time course of their deployment is determined. The current paper deals with optimizing formwork selection and deployment in concrete structure execution. Even if several requirements must be considered when selecting and modeling the formwork (e.g., construction time, quality of concrete structure, etc.), an effort to minimize the cost of formwork, and thus construction cost, plays the most significant role. A dynamic model for effective and optimal planning of formwork in construction projects, including formwork cost analysis, is presented in the paper. The included case study demonstrated the planning of the formwork through a software application developed based on the computational algorithm of the dynamic model presented. A case study is presented in the article as a research method. An office building with five above-ground floors and one underground floor was chosen for the case study. To solve the case study, the formwork for horizontal structures (i.e., beams and slabs) is considered. The goal of the case study is to identify research questions and apply time and cost optimization to a selected specific building.

This article describes Mixed Reality and its differences from Virtual and Augmented Reality. The article also deals with the concrete use of Mixed Reality in the construction industry, which is checking the conformity of the real building and the designed model. As part of the article, this method of use was actually used on the construction site. The work describes the procedure for using Mixed Reality to check the match between the real building and the model. Obstacles and problem areas that were discovered during use and will be subject to further research are also described in the article.

LIFELONG LEARNING AT THE FACULTY OF CIVIL ENGINEERING OF THE TECHNICAL UNIVERSITY IN KOŠICE (SLOVAKIA) UNDER LOCKDOWN

R. Baskova , Y. Nechyporchuk, E. Panulinova , J. ČabalaTechnical University of Kosice, Faculty of Civil Engineering (SLOVAKIA)

Appears in: EDULEARN22 Proceedings Publication year: 2022Pages: 3097-3100ISBN: 978-84-09-42484-9ISSN: 2340-1117doi: 10.21125/edulearn.2022.0771Conference name: 14th International Conference on Education and New Learning TechnologiesDates: 4-6 July, 2022Location: Palma, Spain

1 Technical University of Košice, Faculty of Civil Engineering (SLOVAKIA)2 Technical University of Košice (SLOVAKIA)

1 Technical University of Košice (SLOVAKIA)2 Technical University of Košice, Faculty of Civil Engineering (SLOVAKIA)

Spatial imagination is an important part of a person's ability in everyday life. It is also part of human intelligence and therefore part of various intelligence tests. Spatial imagination is, of course, essential for technical students. Without the ability to ‘see’ students would not be successful either in study or in practice. This ability is possible to improve through training. Geometry, which is a discipline dealing with relationships in space, has a unique opportunity. Geometry is an integral part of mathematics. This opportunity is available during education in primary and secondary schools. Thus, a Maths teacher has a unique opportunity to increase these pupils’ competencies already during primary and secondary school. There are seven universities in Slovakia, which prepare future mathematics teachers. Each of them offers a college degree in this field (of course in combination with another subject). However, the study varies from school to school in the subjects that are part of it. The aim of this paper is to analyse the representation of structural geometry (by the term structural geometry we mean the part of geometry for which it is necessary to grab a ruler and a compass) in the preparation of future mathematics teachers at Slovak universities. It is also interesting to compare the representation of structural geometry in the subject of mathematics at different primary and secondary schools.

P. Mésároš, K. Krajníková, J. Smetanková, J. ČabalaTechnical University of Kosice, Faculty of Civil Engineering (SLOVAKIA)

Z. Struková, A. Tažiková, J. ČabalaTechnical University of Košice, Faculty of Civil Engineering (SLOVAKIA)

In today's world, where contact teaching is not safe or not allowed at all, education is moved to online space. Teachers need to adapt to new educational opportunities. It is still important to attract the attention of students, to be able to explain the curriculum in understandable, engaging and interesting way. It is necessary to look at the current situation as a challenge and make the most of it. In this way, a real educator can show their art and abilities. Classical teaching used so far has long been considered obsolete, but this discipline is still important for the development of spatial imagination and the ability to ‘see’ for students of technical fields. However, the step from classical teaching to modern interactive geometry is challenging for the teacher. The current situation has forced teachers to make changes. In this paper, we discuss teaching methods in an undergraduate level course of Descriptive Geometry at a technical university during forced online education. The computer-aided construction of geometric shapes brings new possibilities that were not available in the classical construction with a pencil on paper or chalk on a blackboard. It is a long known saying, one look is worth a thousand words. If we allow students to engage in geometry, change the assignment and follow the results, we will achieve a deeper understanding of spatial relationships. Interactive geometry is therefore one of the possible ways to continue the education of geometry.

Progressive technologies and practices are shifting the possibilities of building design and improving work efficiency. Constantly changing site conditions require different procedures and designs that take into account these changing conditions, whether it is a design solution, a change in environmental conditions, or just sustainability factors. Adaptive building design offers opportunities to cope with changing factors to achieve the ähighest possible level of building quality. This case study deals with the topic of adaptive formwork design for building renovation, taking into account sustainability. The aim of the article is an investigation and demonstration of the building information modeling (BIM) environment used for the adaptive design of formwork elements for the building renovation in the context of sustainability. The object of the case study is a building in the center of Kosice, Slovakia. The BIM environment allows prompt and correct adaptation of the formwork design to changing lighting conditions, ventilation, heating and temperature during the design of the building.

J. Čabala, Z. Struková, A. TažikováTechnical University of Košice, Faculty of Civil Engineering (SLOVAKIA)

A. Tažiková, Z. Struková, J. ČabalaTechnical University of Košice, Faculty of Civil Engineering (SLOVAKIA)

J. Čabala, Z. Struková, R. Bašková, A. TažikováTechnical University of Košice, Faculty of Civil Engineering (SLOVAKIA)

Z. Struková, A. Tažiková, R. Bašková, J. ČabalaTechnical University of Košice, Faculty of Civil Engineering (SLOVAKIA)

R. Bašková, Z. Struková, A. Tažiková, J. ČabalaTechnical University of Košice, Faculty of Civil Engineering (SLOVAKIA)

Digitization in construction has become increasingly important in recent years. Digital technologies are a way to facilitate some activities and thus save time and money on construction projects. Creating an information model of an existing building can be relatively time-consuming. The 3D scanner allows you to perform personal tasks with time savings, which is very important when managing construction projects. Digital technologies are also an effective tool for these activities. This research discusses the issue of 3D scanning of a historical building for real state surveying purposes. In this case study, the subject of the study was the chapel of St. Rosalie in Košice. The aim of the research was to describe the course of digitization in the building in question, i.e. the creation of an information model of the building. At the same time point out the possibilities and limitations of a 3D scanner on this specific construction.

R. Bašková, Z. Struková, J. Čabala, A. TažikováTechnical University of Košice, Faculty of Civil Engineering (SLOVAKIA)