Prohlížení Acta Polytechnica CTU Proceedings. 2022 ( vol. 32-39) dle názvu
Zobrazují se záznamy 233-252 z 290
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Semi-probabilistic assessment of existing bridge using simplified methods for estimation of variance
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)The paper is focused on assessment of existing prestressed concrete bridge by simplified methods for estimation of coefficient of variation. The bridge was selected in the framework of the European Project INTERREG ... -
Simplified modelling of the performance of concrete tunnels during fire and post-fire damage classification
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)The performance of concrete tunnel structures during and after fire is not well understood. This is an obstacle to the adoption of risk-based approaches for fire safety design of tunnel structures. Upon the request of the ... -
Solar shelter: Exploring architectural design input for industrially-crafted shading devices
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)European Cities are strongly affected by the Urban Heat Island effect and Climate change impacts in recent and future summer periods. As such, the integration of passive cooling strategies is of increasing importance for ... -
Specifying boundary conditions for the operation of pipe heating systems with impact on the building energy balance
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Unaddressed boundary conditions in the design of heating systems affect the energy balance of buildings, especially in buildings with very low energy consumption. Buildings with very low energy consumption are very sensitive ... -
Spectrometry of neutron field based on p(20)+Be source reaction
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)The research deals with a spectrometry of neutron field based on the p(20)+Be source reaction. The p(20)+Be interaction stands for a nuclear reaction where protons accelerated to energy of 20 MeV bombard Be target. Produced ... -
Stability of concrete containing blast-furnace slag following exposure to cyclic elevated temperature
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Concrete is widely used in constructions such as industrial floors or airducts in steel- and casting industry where it is often exposed to long-term or cyclic elevated temperatures. For these applications, thermal stability ... -
Stainless steel-FRCM system for strengthening of RC beams: towards a sustainable strengthening technique
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Fabric-Reinforced Cementitious Matrix (FRCM) systems for strengthening concrete structures are an alternative to traditional techniques. The FRCM system is a composite material consisting of two or more layers of cement-based ... -
Statistical characterisation of reinforcement properties for textile-reinforced concrete: a novel approach
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)The potential of textile-reinforced concrete is broad: it can be used in new structures and in the retrofitting of existing structural components. Designing textile-reinforced concrete requires knowledge about the mechanical ... -
Steel elements with timber fire protection - experiment and numerical analysis
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Steel structural elements are sensitive to elevated temperatures, while timber elements have good thermal insulation properties. Timber material can fulfill the role of fire protection of steel members. The effect of the ... -
Strength and durability characteristics of self compacting concrete (SCC) with recycled aggregate and manufactured sand
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)The investigations on self compacting concrete (SCC) with recycled coarse aggregate and Manufactured sand (M-Sand) were performed in this current study. The SCC mixtures were produced with the recycled coarse aggregate of ... -
Structural assessment and expected utility gain
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)This paper contains an introduction, probabilistic formulation, and exemplification (1) of system state and utility actions, (2) system state and utility action value analysis and (3) a threshold formulation for a predicted ... -
Structural flexural strengthening through material bonded to the concrete substrate
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)This article proposes an alternative method for the structural design of reinforced concrete elements strengthened in bending by metallic plates or fiber-reinforced polymer (FRP) bonded to the concrete substrate. It is ... -
Structural reliability of existing rc beams strengthened with UHPFRC tensile layers
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)A methodology for reliability analysis of reinforced concrete (RC) beams strengthened with ultra high-performance fibre reinforced concrete (UHPFRC) tensile layers is presented. The proposed methodology includes stochastic ... -
Structural reliability of hollow core slabs considering compressive membrane action
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Compressive membrane action can considerably improve the load bearing capacity of concrete slabs and beams in case of excessive loaded due to an accidental event. Currently, only limited research has been focusing on ... -
Study for re-ASR behaviour of recycled concrete using ASR generated concrete and considering countermeasure technology
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)It is predicted that the concrete volume to be discarded will increase due to the renewal of the concrete structures and the increase in the returned concrete from construction site. The use of this concrete block as ... -
SUBSALS: a subchannel thermal-hydraulic code for IRT type fuel analysis
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)The LVR-15 research reactor is operated with a tube type fuel IRT-4M. Due to fuel’s unique concentric square annular shape with, coolant flow is subject to significant pressure driven crossflow. Detailed calculation of ... -
Suggestion of ultimate strength formulas of partial frame pile cap composed of exterior column, foundation beam and pile
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Currently, there is no research and few valid experiments of pile caps. And shear failure mechanism of a pile, exterior column and foundation beam and pile caps in RC structure is not resolved yet under bi-lateral loading. ... -
Sulphate corrosion of cement pastes with a high content of waste marble powder
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)The article focuses on sulphate corrosion of cement pastes with a high content of waste micronized marble powder. Micronized marble powder is used as a substitute for Portland cement CEM I 42.5R. The amount of micronized ... -
Supporting sustainable policies through an Urban Energy-Environmental Model and a Multi-Criteria Analysis: a case study in an Italian province
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Public Authorities (PAs) need to define cross-cutting strategies for urban planning including policies for sustainable and energy-efficient buildings and innovative urban solutions. The article presents a decision support ... -
Sustainability and resilience in building design: Discussion on two case studies
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Designing sustainable and, at the same moment, resilient buildings is a necessity to reach the UN Sustainable Development Goals by 2030. However, these two building design approaches - sustainability and resilience - are ...