Prohlížení Acta Polytechnica CTU Proceedings. 2022 ( vol. 32-39) dle názvu
Zobrazují se záznamy 213-232 z 290
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Quantifying the impact of external and internal factors and their interactions on thermal load behaviour of a building
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)For the energy-efficient design of district heating networks, knowledge about the neighborhood heat load behavior, through heating load profiles in high temporal and spatial resolution, is crucial. Due to the high effort ... -
Quantifying uncertainties in the sustainability evaluation of concrete materials considering regional characteristics in Japan
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)In the evaluation of concrete sustainability, what constitutes "sustainable" to one region may vary from another. This often leads to methodological forms of uncertainties that makes the evaluation process more complex. ... -
Quantitative analysis of the strength generating C-S-H-phase in concrete by IR-spectroscopy
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)The C-S-H-phase is the most important strength generating phase in concrete and other cementitious materials. The analysis of C-S-H is therefore an important instrument of innovations in the field of concrete and its ... -
Railway reinforced concrete infrastructure life management and sustainability index
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Infrastructure healthy enhancement for saving resources in operation procedures is one of the most important objectives for owners on their decision support system based on cost management. In this manner, finding the ... -
Railway track deflection analysis by using evolutionary algorithms
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)In contrast to numerical methods, analytical modelling of the railway track is one of the less time-consuming and computationally demanding methods which, in combination with the computing power commonly available today, ... -
Rational and sustainable procedure in the design of bridges using pre-stressed concrete beams a theoretical practical method
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Currently there is not a direct procedure for the design of this bridge system, the procedure is still based on trial and error, there are no studies that give us both the optimum number of beams and other characteristics ... -
RC deck - stiffened arch existing bridges: simulated design and structural analysis
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)The 20th century is known as the age that gave birth to the largest reinforced concrete structures. Many applications of this new material were realized at that time, both from a theoretical and practical point of view. ... -
Reactor criticals and spent fuel systems similarities
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Many conservative assumptions for subcriticality assessment calculations have to be made in current calculations of spent fuel storage systems. This is due to a fact that there is no available database of benchmarks ... -
Reduction of dissolved oxygen in minimizing corrosion
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Concrete structures are susceptible to corrosion especially when exposed to marine environment. In order to minimize the corrosion in reinforced concrete, reduction of dissolved Oxygen (DO) in mixing water is recommended. ... -
Reintegration of Karachi port through sustainable adaptive reuse of abandoned and underused industrial buildings
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)The economic capital and one of Pakistan’s most important cities gain popularity due to the reputable Karachi port. Karachi was referred to as Korokala and Debal in ancient times; a city conquered by famous conquerors, ... -
Reliability approaches affecting sustainability of existing steel structures
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Steel structures are second most numerous in the stock of existing buildings. In contrast to dominating concrete buildings, they are typically lightweight and are more sensitive to alterations in use or loads. While the ... -
Reliability of a structure stricken by a tornado
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)A tornado may become a very dangerous climatic action for any structure, depending on the tornado intensity and extent of the structure. The origin of a tornado, its range and further activity appear to be unpredictable ... -
Reliability of existing reinforced concrete slabs exposed to punching shear
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Selected standardised models for the verification of punching shear in reinforced concrete structures are applied for the probabilistic assessment of their reliability level. It appears that the models given in EN 1992-1-1 ... -
REMEDIATION OF A RAILWAY EMBANKMENT USING GEOCELLS AND DEEP SOIL MIXING - A NUMERICAL ANALYSIS
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Progressive settlement of the embankment under the railway track near Žďár nad Sázavou, the Czech Republic, has been observed for many years. Immediate improvement was needed to secure the safety of the traffic and to ... -
Rescue of a stone bridge with respect to current condition and standards
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)A three span stone masonry bridge dating back to the middle of the 19th century, still in the roadway network, is assessed to prevent its demolition. Its industrial heritage value and ecological concerns were the principal ... -
Research focused on low carbonation of concrete under old cement-based render
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)In-situ research and laboratory study of the concrete of old bridges shows that despite the low strength classes of concrete and the long time of exposure to CO2, it is possible to moderate the depth of their carbonation. ... -
Research, protection, and possibilities of re-use of post-war industrial heritage in the Czech Republic
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Buildings of an industrial nature dated from the 1950s through '80s are often quite interesting from the standpoint of typology, architecture and technology, and correspond to the development of technological industrial ... -
Review and analysis of existing methods to assess the Indoor Environmental Quality (IEQ) for office buildings
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Population in developed countries spend most of their time indoors, whether in their homes, workplaces, stores or leisure areas. Due to the COVID-19 pandemic, this situation worsened and now, more than ever, the importance ... -
Review of sunlight exposure of buildings in Central Europe climatic conditions
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)The sunlight exposure represents one of key parameters of indoor climate comfort. The evaluation of sunlight access into buildings is based on a methodology of European standard EN 17037. The methodology is focused on ... -
Risk based maintenance for Swiss railway bridges: concept, implementation and first experiences
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)The Swiss Federal Railway (SBB) has an inventory of approx. 6,000 bridges. So far, condition classes of the individual bridges have been used for maintenance management. To improve the efficiency of the maintenance management, ...