Nejnavštěvovanější odborný web
pro stavebnictví a technická zařízení budov
estav.tvnový videoportál
Stavba
Archiv článků od 14.8.2017 do 20.11.2017

Archiv recenzovaných článků

zpět na aktuální články

Aktuální evropské trendy v oblasti požárně bezpečnostních zařízení
20.11.2017
plk. Ing. Zdeněk Hošek, Ph.D., Ministerstvo vnitra - generální ředitelství Hasičského záchranného sboru ČR

The paper focuses on current European trends in the application of some new and innovative types of fire safety devices, preventing the initiation of fire or explosion and detection systems. The article also deals with the issue of placing these construction products on the market.

Analýza trvanlivosti preimyselných komínov © Imperium Obrazu - Fotolia.com
13.11.2017
prof. Ing. Juraj Bilčík, PhD., Ing. Ivan Hollý, PhD., Ing. Natália Gažovičová

Industrial chimneys are civil engineering works, which in addition to static and dynamic effects, direct and indirect loads, are also exposed to significant non-stationary environmental loads. Analysis of their durability focuses on the evaluation of vertical cracks, corrosion of concrete and reinforcement, which have a decisive influence on the resistance of the chimney's shaft with regard to the ultimate and serviceability limit states, as well as their durability.

13.11.2017
Ing. Dagmar Kopačková, Ph.D., redakce

Open-space they do not work, and they will be replaced by coffee shops in the future, says British Telecommunications futurist Nicole Millard quoted by The Daily Telegraph.

6.11.2017
Ing. Ján Ježko, PhD., Katedra geodézie, Stavebná fakulta, STU v Bratislave

The article describes the methods of the surveying data and documentation production. The documentation is used for the process of planning, realisation and reconstruction of transport, energetic, industrial, ecologic and public objects. The documentation is also used in the remediation process and the protection of the buildings and historical objects. In these processes, it is necessary to know the spatial dimension – location data, the location of these objects on the Earth's surface and shape and dimensions of these objects. The activities that lead to the realisation, reconstruction and remediation of building objects require a quality maps, photogrammetric images and geodetic models (3D models), which are mostly realised in a suitable interactive graphic PC system in 3D digital form.

Opravy historických objektů z pozice statiky a z hlediska památkové péče
30.10.2017
doc. ing. Ladislav Klusáček, CSc., doc. ing. Zdeněk Bažant, CSc.

Heritage care specialists in the repair and reconstruction of historical buildings prefer using of previous working methods and especially materials, sometimes too strongly. It is not always easy to satisfy their requirements, with regard to the problematic of static object state. It is necessary to find suitable compromises.

23.10.2017
doc. Ing. Jiří Zach, Ph.D., Ing. Bc. Jitka Hroudová, Ph.D.

The paper deals with the development of vacuum insulations from their beginning to the present and their application in the industrial sectors and civil engineering. Development and study of the behavior of environmentally fiendly core insulations for application to vacuum insulation panels is going nowdays at Brno University of Technology, Faculty of Civil Engineering. These are mainly organic materials based on natural or waste polymer fibers. This article describes the first results of the research activities on this issue where test samples of flax fiber insulation were tested, as well as cotton and polyester fibers samples obtained from waste fabrics.

Stavebně-technický průzkum brněnského kina Scala
16.10.2017
doc. Ing. Pavel Schmid, Ph.D., Ing. Iva Rozsypalová, Ing. Ondřej Karel, Ing. Petr Daněk, Ph.D., Ing. Petr Žítt

The paper deals with structural-technical survey of Scala cinema in Brno. It is a historic building completed in 1928. The main purpose of the diagnostic survey was passportisation of structure´s defects, determine the quality of concrete and reinforcement, assessment of defects and failures causes, evaluate the condition of the ceiling structure in relation to the considered reconstruction above cinema.

Šetrné diagnostické metody pro hodnocení bezpečnosti dřevěných konstrukcí
16.10.2017
Ing. Michal Kloiber, prof. Ing. Miloš Drdácký, DrSc., dr. h.

The paper discusses approaches to safety assessment of historic timber structures using testing of very small specimens extracted from a historic structure or by direct in-situ testing. The presented methods must to take into account conditions given by the EN 16085. They further consider environmental influences and correlations of characteristics achieved by various SDTs.

Rekonstrukce dřevěných trámových stropů
9.10.2017
Ing. Zdeněk Vejpustek, Ph.D., doc. Ing. Bohumil Straka, CSc.

The paper shows reasons for carrying out restoration of historic wooden ceiling using “dry method” – interaction between historic wooden beams and wood-based panels. This article summarizes the process of reconstruction of historic wooden ceilings, describes the problems to be addressed and it summarizes experience with completed ceilings in Brno,Czech Republic.

Luka Living
9.10.2017
Ing. Michal Čejka, PORSENNA o.p.s.

The article deals with the process of energy optimization of a unique rental housing complex to a high energy standard. It analyzes the identified problems of the initial energy baseline of the building, which should be declared to meet the requirements for a high energy standard. It analyzes and substantiates each step of the process from an energy specialist‘s and an investor’s point of view.

Nanomateriály a vybrané oblasti ich využitia
2.10.2017
doc. Ing. Ivan Kubovský, PhD., Ing. Miroslav Gašparík, PhD., prof. RNDr. František Kačík, PhD.

The possibilities of using nanomaterials are quite broad – from increasing the hydrophobicity and photostability of surfaces, through improving the mechanical properties of traditional materials, aiding in the diagnosis and therapy of certain diseases, repairing damaged parts of the tissue, and solving problems in decontamination of the environment. Intensive research also takes place in their applications to increase the resistance of wood to wood-boring fungi and wood-destroying insects. Nanomaterials, including nanocellulose, are perspective in the field of wood fire protection, which may be important in the evolving trend of wood building construction.

Kompozitní výztuž do betonu
18.9.2017
Ing. Miroslav Procházka, Technický a zkušební ústav stavební Praha, s.p.

The composite materials for strengthening/reinforcement a concrete has become the new construction product set up for compulsory verification pursuant to Act No. 22/1997 Coll. (č. 22/1997 Sb.) as amended by Government Ordinance No. 163/2002 Coll. (č. 163/2002 Sb.) as amended by Government Decree No. 312/2005 Coll. and No. 215/2016 Coll (č. 312/2005 Sb. a č. 215/2016 Sb.) This reinforcement exists in several different types, and accordingly, it also has significantly different properties which must be strictly respected in its use.

Průkazné stanovení vyztužení železobetonové konstrukce a vhodné NDT metody
11.9.2017
Ing. Ondřej Anton, Ph.D., Ing. Věra Heřmánková, Ph.D.

Despite efforts to maintain quality during the construction of reinforced concrete structures, it is relatively common for improper reinforcement to be used contradicting the project, which can lead to serious structural defects. It is then up to non-destructive testing methods to prove these defects. The key is to choose the appropriate method and device for the task.

11.9.2017
doc. Ing. Vladimír Zmrhal, Ph.D., ČVUT v Praze, Fakulta strojní, Ústav techniky prostředí

At the beginning of the new school year, we would like to draw attention to the book Ventilation Schools in Contexts. All parents want their children to be successful at school. It also depends on class ventilation. We bring a selection from the chapters of the new publication.

Patologie fóliových hydroizolačních materiálů
11.9.2017
Ing. Marek Novotný, Ph.D.,, Mgr. Petr Rudolf

The article discusses the defects and failures of synthetic foil waterproofing, which show manufacturing defects, which then lead mainly to shorten the lifetime of waterproofing system, but also their own waterproofing due mainly manufacturing, but structural faults. The article gives examples of analytical, non-destructive methods that can be documented defects in material and demonstrate. At the end of the article is included as a legal commentary on the defects and malfunctions and legal information about how to resolve this issue in terms of the legal system.

4.9.2017
Ing. Magdaléna Kociánová, Ing. Vít Černý , Ph.D., prof. ing. Rostislav Drochytka, CSc., MBA

The paper describes the technology of liquefaction and stabilization of soils that are created in the excavation works of engineering networks. Liquefied grout could be used to fill even the less accessible spaces of utility networks. For the re-use of the excavated soil in a liquefied form, is necessary its pre-treatment, which consists in stabilizing by the suitable stabilizing additive. The mixture is furthermore required the liquefaction by using a suitable liquefying additives. Suitable for stabilization and soil liquefaction it seems the use of fly ash, as is mentioned below in the paper.

28.8.2017
Ing. Jan Vinař, MURUS, monumenta renovamus, s.r.o.

The paper deals with the principles of structure, function, use, disfunction and repairs of frame houses (part 1 to 4).

21.8.2017
Ing. Jan Vinař, MURUS, monumenta renovamus, s.r.o.

The paper deals with the principles of structure, function, use, disfunction and repairs of framework (part 1. to 4.)

Hamr na Jezeře - Konstrukční principy hrázděných staveb
14.8.2017
Ing. Jan Vinař, MURUS, monumenta renovamus, s.r.o.

The paper deals with the principles of structure, function, use, disfunction and repairs of framework (part 1 to 4).


zpět na aktuální články
 
 
Reklama