Prohlížení Acta Polytechnica CTU Proceedings. 2022 ( vol. 32-39) dle názvu
Zobrazují se záznamy 190-209 z 290
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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 ... -
Probabilistic models for resistance variables in fib Model Code 2020 for design and assessment
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)The fib Model Code offers pre-normative guidance based on the synthesis of international research, industry and engineering expertise. Its new edition (draft MC 2020) will bring together coherent knowledge and experience ... -
Probabilistic safety assessment of Koeberg spent fuel pool
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)The effective management of spent fuel pool (SFP) safety has been raised as one of the emerging issues to further enhance nuclear installation safety after the Fukushima accident on March 11, 2011. SFP safety-related issues ... -
Proof of concept - using prospective hybrid MFA-LCA to evaluate the environmental implications of Circular Economy using a case study of wood
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Consistent evaluations of impacts induced by implementation of Circular Economy (CE) design processes and solutions within the built environment, necessitates decision-support tool development/advancement, as CE does not ... -
Properties of concrete using crushed stone powder with various specific surface areas
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Many countries use crushed stone and crushed sand as the aggregate for concrete. However, a large amount of crushed stone powder is produced as by-products in the manufacturing process. Unless effective utilization of ...