Browsing Acta Polytechnica CTU Proceedings. 2022 ( vol. 32-39) by Title
Now showing items 186-205 of 290
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Natural fiber-reinforced light-weight cement blocks prepared from waste for sustainable development
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Low density of the light-weight cement blocks offers an advantage in terms of dead load reduction, which is advantageous in structural design-reduction of size and numbers of load-carrying structural components is possible. ... -
Natural materials in building construction - annual evaluation
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)The construction industry's focus on a low-carbon economy will result in the need for a deeper examination of natural-based building materials. From an environmental point of view, the benefits of these materials are ... -
New or existing, does it matter?
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Both when designing new and when evaluating existing structures, methods of analysis must be based on established engineering theory and practice. Also, the general principles of structural reliability regarding the treatment ... -
New possibilities for recycling of mineral wool separated from thermal insulation waste
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)It has become increasingly clear, that the recent consumption of mineral resources is unsustainable. The Czech Republic produces more than 217,000 tones of mineral wool annually, while its recycling stays unacceptably ... -
Oldest concrete vaulted and arch bridges in the Czech Republic – evaluation and preservation of their historical value
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)The paper is related to a research project focused on tools for an evaluation and preservation of the historical value and function of arch and vaulted road bridges. It deals with the beginning of use of concrete vaulted ... -
On applications of brain-computer interface
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Brain-computer interface (BCI) applications implement a direct communication path between the brain and the computer. This paper deals with the fundamentals of BCI systems and the experience of the neuroinformatics team ... -
On the effects of modified lane configuration due to construction works on bridge loading
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Construction works are frequently recurring events within highway networks, temporarily altering the characteristics of the traffic flow and hence of the bridge loading process. Consequently, highway bridge superstructures ... -
On the ongoing computation of the LVR-15 reactor fuel burnup
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Isotopic composition of the LVR-15 reactor fuel changes significantly during the operation time. In order to enable Monte Carlo calculations of the LVR-15 core throughout any reasonable time period, the isotopic compositions ... -
On the treatment of measurement uncertainty in stochastic modeling of basic variables
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)The acquisition and appropriate processing of relevant information about the considered system remains a major challenge in assessment of existing structures. Both the values and the validity of computed results such as ... -
Operational energy and embodied impacts of retrofitting the window frames of mixed-mode office buildings
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Design decisions normally consider the building's operational phase as the main criterion to reduce energy expenses in a building. In less efficient buildings, reducing the operational energy becomes the most important ... -
Optimization model of solar cooling system with latent heat storage
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Today, the fastest growing end-use in the buildings sector is cooling demand, notes the International Energy Agency (IEA). In the last few years, the interest in solar cooling systems has been growing globally. Solar cooling ... -
Optimizing the acid resistance of concrete with granulated blast-furnace slag
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Concrete structures exposed to high levels of chemical attacks are assigned to exposure class XA3, which recommends separate concrete protection or a special expert solution to ensure durability. Due to the partial ... -
Options of modelling refurbishment in LCA: continuous improvement strategy and next life cycle approach
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Compared to other goods, buildings have a long lifespan. It is therefore the norm and not the exception that adaptation will be needed at some point in their life cycle to changing environmental conditions, technical ... -
Parapet structure from special shaped TRC blocks
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)The paper describes innovative parapet solution based on special shaped blocks made form textile-reinforced concrete - TRC. The blocks are designed for a placement at the parapet of building with a flat roof. The solution ... -
Phase-field damage of laminated glass in explicit dynamics
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Laminated glass is aesthetic but also functional modern material, which has spread from the automotive industry to the civil engineering in the form of design as well as structural elements. Proper design of this material ... -
Physical properties of portland cement based concrete exposed at a depth of 3520 m in the Nankai Trough
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Concrete is widely used in large-scale construction of submarine infrastructure because of its high strength, durability, and ease of handling. However, knowledge of its durability in deep seawater is lacking. In the deep ... -
Practical concepts for the use of probabilistic methods in the structural analysis and reassessment of existing bridges - presentation of latest research and implementation
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)In structural engineering and bridge construction, probabilistic calculations are only performed in a few exceptional cases. The ability to directly use information from the existing structure is an important advantage of ... -
Predicting leakage of the VERCORS mock-up and concrete containment buildings - a digital twin approach
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)EDF operates a nuclear power generation fleet made up of 56 reactors. This fleet contains 24 reactors designed as double-walled concrete containment building. The inner concrete containment vessel has no metallic liner and ... -
Prestressed ultra-high performance concrete (UHPC) beams for reusable structural systems: design and testing
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)With the aim to reduce the environmental footprint of buildings, this paper presents an original structural system concept for two-way slabs in residential and office buildings. The proposed system extends the best practice ... -
Probabilistic assessment and sensitivity analysis of existing concrete bridge via surrogate modeling
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)The paper is focused on probabilistic assessment and sensitivity analysis of existing prestressed concrete bridge using surrogate model in form of Polynomial Chaos Expansion (PCE). The bridge was selected in the framework ...