Prohlížení Acta Polytechnica CTU Proceedings. 2022, vol. 33 dle názvu
Zobrazují se záznamy 1-20 z 98
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3d finite element simulation of reinforced concrete column strengthened by partially confined carbon fibre reinforced polymer under concentric loading
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)In this paper, numerical simulation initiated to investigate the mechanical response of reinforced concrete (RC) column strengthened by partially confined carbon fiber reinforced polymer (CFRP). An experimental investigation ... -
A new performance test to evaluate the sulfate resistance of concrete by tensile strength measurements
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Concrete structures without sufficient durability can be damaged by sulfates in groundwater and from surrounding rock layers. To evaluate the performance of a concrete mixture, precise and performance-oriented test methods ... -
A revival in façades: Textile reinforced concrete panels are light, safe and aesthetically pleasing
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Textile reinforced concrete was developed in recent years into a construction technique that has its benefits and advantages in applications where conventional types of reinforcement have their limits. The current, minimum ... -
A study on properties of concrete with dry fly ash and fly ash slurry stored with stirring
(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. ... -
Advanced hybrid nonmetallic composite reinforcement for concrete structures
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)During the last decades, fiber reinforced polymer (FRP) reinforcing bars for concrete structure has been extensively investigated and a number of FRP bars became commercially available. However, major shortcomings of the ... -
An experimental study of reinforced concrete beamcolumn joint with partially high strengthened longitudinal bar
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)It is necessary to generate the yield position away from the column face to minimize damage to the beam-column joint during a large earthquake in a reinforced concrete building. The same efficacy can be realized using ... -
Analytical simulation on experimental seismic response of headed anchors embedded in reinforced concrete
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)This paper deal with a series of dynamic response analyses, carried out to give numerical correlation of hysteretic behavior of cast-in-place anchorages obtained by the static loading and shake table tests. Specimens for ... -
Analyzing the impact of the aspect ratio of a building on concrete use in its structure
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Buildings consume over half of annual energy supply as embodied and operating energy in their construction and operation releasing harmful emissions to the atmosphere. Over 90 % of the embodied energy is attributed to ... -
Application of high performance concrete for reconstruction
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)One of the sustainability aspects of the construction is a sufficient durability. In objectively justified cases, the durability is enhanced by reconstruction. To ensure economic design of the reconstruction, non-liner ... -
Axial behaviour of strengthened circular hollow reinforced concrete column with CFRP partial confinement
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Circular hollow reinforced concrete column will experience deterioration due to many causes such as natural disaster, corrosion, low quality and others. Therefore, structural strengthening is required since replacing the ... -
Bending behavior of adhesively-bonded engineered wood-concrete composite decks
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Four-point bending tests were conducted on five medium-sized (i.e., 2300 mm in length and 215 mm in width) engineered timber (laminated veneer lumber (LVL) and cross-laminated timber (CLT)) - concrete (wood chip concrete ... -
Benefits of pervious concrete for urbanized habitats
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Pervious (draining) concrete is a new generation concrete which, for its structure, allows rainwater to enter the subsoil and at the same time is determining the final surface without the need for any additional layer. ... -
Breakthrough of the resemblances and correspondences between resilience and sustainability in civil infrastructures
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Sustainable construction has become a growing trend among researchers and stakeholders. Simultaneously, resilience and risk assessments for civil Infrastructures have flourished in terms of importance among researchers, ... -
Chloride ion penetration behaviour in concrete containing an expansive additive and a calcium-aluminate-based additive
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)The effect of the material characteristics on the infiltration behaviour of chloride ions in concrete containing a combination of an expansive additive and a calcium-aluminate-based additive has been investigated. The same ... -
Circular concrete: validating new technologies in the lab and on-site
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)The growing importance of a circular economy also holds possibilities for concrete. Some of the principles of circularity, like the re-use of "waste" as secondary raw material and the optimisation of the design with regards ... -
Comparative flexural performance of steel fibre reinforced self-compacting concrete (SCFRC) ribbed slab with different fibre provision area
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)The flexural performance of three SCFRC ribbed slabs with different fibre provision area were investigated in this paper; in both ribs and flange (SFWS), ribs only with additional welded mesh in flange (SFT) and in ribs ... -
Comparing the environmental performances of new and renovated school buildings
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Evaluating which is the best choice between renovating an existing construction or building a new structure in countries like Italy, where a huge post-war un-listed building heritage does not satisfy the current standards ... -
Comparison between concrete stress diagrams according to the Brazilian standard ABNT NBR 6118: 2014
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)This study aims to compare methods for the determination of concrete properties by means of the stress diagrams present in the Brazilian standard ABNT NBR 6118: 2014. The area under the stress diagram, the internal reactions, ... -
Concrete admixtures - sustainable concrete
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)Durability of concrete, an important part of the sustainability theme, was, is, and will be one of the main topics for large infrastructure projects like the Gotthard base tunnel. For such important structures a service ... -
Conformity assessment model for mechanical coupling devices and anchors for reinforcing steel for use in concrete structure
(České vysoké učení technické v PrazeCzech Technical University in Prague, 2022)The use of mechanical coupling devices and anchors for reinforcing steel for use in concrete structures can simplify the design and construction of reinforced concrete and reduce the amount of reinforcement required. ...