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The generalized slenderness-based resistance method for the design of SHS and RHSStahlbau2/2020163Empfehlungen der Redaktion

Kurzfassung

Keine Kurzfassung verfügbar.

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The generalized slenderness-based resistance method for the design of SHS and RHSStahlbau12/20191159Empfehlungen der Redaktion

Kurzfassung

Keine Kurzfassung verfügbar.

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Toffolon, Andrea; Meng, Xin; Taras, Andreas; Gardner, LeroyThe generalized slenderness-based resistance method for the design of SHS and RHSSteel Construction4/2019327-341Articles

Kurzfassung

Selected, extended paper from the SDSS 2019 special session ECCS/TC8 - Structural Stability
The cross-sectional strength of square (SHS) and rectangular (RHS) hollow sections loaded in compression and various degrees of uniaxial or biaxial bending are governed by local instabilities in the elastic or plastic range. Common design checks for cross-sectional strength, e.g. those found in the Eurocodes, regularly penalize these sections through a conservative omission of various mechanical effects and a categorization of cross-sections into distinct classes with corresponding, markedly different, design rules. This leads to discontinuities and inaccuracies in the strength representation. Such conservatism is particularly detrimental to the introduction of high-strength steel hollow sections, which often fall into the semi-compact and slender cross-section classes for which local buckling is more relevant. This paper discusses the results of extensive research work carried out during the RFCS research project HOLLOSSTAB. In this project, new design rules were developed for the cross-sectional and member design checks of hollow sections with various shapes and slenderness ratios, termed the “Generalized Slenderness-based Resistance Method - GSRM”. This paper summarizes the experimental and numerical campaign carried out within HOLLOSSTAB and describes the new GSRM design rules and their background for the case of the cross-sectional strength of SHS and RHS.

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Bauer, Johann; Kohlböck, Bernhard; Moritz, Bernd; Zwittnig, GeraldThe Granitztal Tunnel Chain - State of works on the second longest tunnel system on the Koralmbahn / Tunnelkette Granitztal - Stand der Arbeiten für das zweitlängste Tunnelsystem an der KoralmbahnGeomechanics and Tunnelling5/2016416-427Topics

Kurzfassung

The Granitztal Tunnel Chain is not only the second longest tunnel system on the Koralmbahn line but also an essential part of the future new railway line between Graz and Klagenfurt (New South Range Line). At the time of reporting, more than two-thirds of the tunnel excavation works on the Graniztal contract are completed. After a detailed description of the project with four simultaneously advancing TBM drive and the extensive concreting ad earthworks in the Granitztal, the geological and geotechnical conditions and the experience gained until now are described. Particular attention is paid to the challenging geotechnical conditions in the Langer Berg section and the overground section in the Granitztal. The intensive design work to optimise future maintenance work is also described.
Mit der Tunnelkette Granitztal entsteht derzeit nicht nur das zweitlängste Tunnelsystem an der Koralmbahn, sondern ein wesentlicher Mosaikstein für die künftige Hochleistungsstrecke zwischen Graz und Klagenfurt. Zum Berichtszeitpunkt wird mehr als zwei Drittel der Vortriebsarbeiten für dieses Baulos abgeschlossen sein. Nach einer detaillierten Beschreibung des Projekts mit seinen vier gleichzeitig laufenden Vortrieben und den umfangreichen Beton- und Erdarbeiten im Granitztal wird über die geologischen und geotechnischen Verhältnisse und die bis dato gewonnenen Erkenntnisse berichtet. Besonderes Augenmerk wird auf die anspruchsvollen geotechnischen Verhältnisse im Abschnitt Langer Berg sowie im Übertage-Abschnitt Granitztal gelegt. Weiters wird über die intensiven Planungsaktivitäten zum Zwecke der Instandhaltungsoptimierung berichtet.

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Gschwandtner, Gunter G.; Höhndorf, Markus; Übleis, MartinThe Granitztal tunnel chain / Tunnelkette GranitztalGeomechanics and Tunnelling6/2015527-534Topics

Kurzfassung

The Granitztal tunnel chain, located after the Koralm Tunnel in a southward direction and adjoining the new IC station in the Lavanttal, essentially consists of the Deutsch Grutschen and Langer Berg Tunnels, which are being excavated cyclically, and the Granitztal gallery in cut-and-cover. The article offers a general overview of the project, described the geological and geotechnical conditions and compares the experience gained in the current early construction phase with the underlying conditions for design and tendering.
Die Tunnelkette Granitztal in südlicher Richtung gesehen nach dem Koralmtunnel sowie anknüpfend an den neu zu errichtenden IC Bahnhof im Lavanttal umfasst im Wesentlichen die Tunnel Deutsch Grutschen und Langer Berg, die im zyklischen Vortrieb aufgefahren werden, sowie geographisch dazwischenliegend die Einhausung Granitztal, die in offener Bauweise erstellt wird. Der Beitrag gibt eine allgemeine Projektübersicht, beschreibt die geologischen und geotechnischen Verhältnisse und betrachtet die in der aktuellen frühen Bauphase gewonnenen Erkenntnisse mit den der Planung und Ausschreibung zugrunde liegenden Gegebenheiten.

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Klais, Frank; Wolf, Petra; Lienhart, WernerThe Grautschenhof contract - Construction of an intermediate access under complex local conditions / Das Baulos Grautschenhof - Errichtung eines Zwischenangriffs unter komplexen RandbedingungenGeomechanics and Tunnelling6/2017686-693Topics

Kurzfassung

With the start of construction on the third tunnelling contract, work has now started on all sections of the Semmering Base Tunnel. The Tunnel Grautschenhof contract is a challenging construction project with numerous unusual problems. Complex ground conditions make extensive grouting necessary. Numerous constraints above-ground, like high-pressure gas pipelines require monitoring and protection measures. Since the start in May 2016, two shafts, the first of three caverns and the first metres of the running tunnels have already been driven. In parallel to this, the works above ground to create two site facilities areas are now largely complete.
Mit dem dritten in Bau gegangenen Tunnelbaulos haben die Arbeiten in allen Abschnitten des Semmering-Basistunnels begonnen. Der Tunnel Grautschenhof ist ein herausforderndes Bauprojekt mit einer Vielzahl nicht alltäglicher Problemstellungen. Komplexe Baugrundverhältnisse machen umfangreiche Injektionsmaßnahmen erforderlich. Zahlreiche übertägige Zwangspunkte wie Hochdruckgasleitungen erfordern Monitoring- und Schutzmaßnahmen. Seit Baubeginn im Mai 2016 wurden zwei Schächte, die erste von drei Kavernen sowie bereits die ersten Vortriebsmeter der Streckenröhren aufgefahren. Parallel dazu konnten die übertägigen Arbeiten auf zwei Baustelleneinrichtungsflächen weitgehend fertiggestellt werden.

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Zenz, Gerald; Obernhuber, Pius; Czerny, HelmutThe great significance of dam safety in Austria / Der hohe Stellenwert der Talsperrensicherheit in ÖsterreichGeomechanics and Tunnelling5/2012631-637Topics

Kurzfassung

Each dam and each reservoir is an individual facility, since their foundation conditions are rarely similar. Due to their location, their height and their storage capacity, dams and reservoirs can hold a considerable hazard potential, which is why they are designed conservatively; projects are examined meticulously (e.g. by the Austrian Commission on Dams) and monitored comprehensively during the construction phase and during operation. To guarantee their continuous safety, dams and reservoirs are monitored with great care by the operating company with the help of trained staff and the latest measuring equipment. The most important measurement data are acquired continuously so as to gain an up-to-date impression of the load-bearing behaviour of the dam and its foundation and to be able to react swiftly and efficiently should any changes occur.
On an international level, the state of the technology concerning dam safety is updated in the bulletins published by ICOLD. Austria takes part in the work of the various committees and has built up a renowned high standing worldwide for guaranteeing dam safety. In training courses and seminars for junior engineers, it is mainly the basics of dam monitoring and safety checks that are imparted, later reinforced by practical work. This approach should also keep the facilities safe in the future.
Talsperren und Speicher sind vor allem aufgrund der jeweiligen Untergrundverhältnisse - jedes Bauwerk hat einen anderen, nur selten ähnlichen Untergrund - individuelle Anlagen. Sie können aufgrund ihrer Lage, ihrer Bauwerkshöhe bzw. ihres Staurauminhalts ein erhebliches Gefährdungspotenzial aufweisen. Sie werden daher konservativ geplant, die Projekte sorgfältig geprüft (u. a. Staubeckenkommission des Bundes) und im Zuge der Bauausführung sowie des späteren Betriebs umfassend kontrolliert. Um die Sicherheit fortlaufend zu gewährleisten, werden diese Bauwerke seitens der Betreiber durch geschultes Personal und modernste Messausstattung sorgfältig überwacht. Die wesentlichsten Messwerte werden permanent erfasst, um so ständig ein aktuelles Bild über das Tragwerksverhalten von Sperre und Untergrund verfügbar zu haben und bei Veränderungen rasch und effizient reagieren zu können.
International wird auf dem Gebiet der Talsperrensicherheit der Stand der Technik mit den Bulletins der ICOLD fortgeschrieben. Österreich arbeitet in den Gremien mit und hat einen weltweit anerkannt hohen Stand für die Gewährleistung der Talsperrensicherheit aufgebaut. In Kursen und Seminaren für die Ausbildung junger Ingenieurinnen und Ingenieure werden insbesondere die Grundalgen für die Talsperrenüberwachung und Sicherheitsüberprüfung vermittelt und in praktischen Übungen vertieft, um so auch in Zukunft Anlagen sicher zu betreiben.

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Plieninger, Sven; Gebreiter, Daniel; Mühlberger, Jörg; Justiz, StefanThe grid-shell of Jinji Lake Mall - Rise like a PhoenixSteel Construction4/2014258-261Reports

Kurzfassung

Jinji Lake Mall, a 290,000 m² shopping and entertainment centre, will be centrepiece to a development of several super-high-rise buildings by the waterfront of Jinji Lake in Suzhou, China. Visible from the surrounding skyscrapers, the appearance of the “fifth façade” became of paramount importance. In response, the architectural design foresaw a continuous, 35,000 m² free-form glass roof to cover the four individual buildings of the mall ensemble.
schlaich bergermann and partner consulting engineers were tasked with the structural design of the roof whose shape was inspired by the wings of a phoenix. To alleviate excessive in-plane stresses in the roof, a rigid triangulated grid was discarded in favour of a more elastic quadrangular frame system, requiring the generation of a quad-dominant topology on the free-form surface. The complex interplay between base buildings and roof structure required that all analysis be done on a combined model including roof, tree columns and sub-structure.
Multi-resolution mesh modelling stood at the core of a generative work-flow which mathematically optimized for geometric and structural criteria in the same process. Furthermore, geometrically similar facets were grouped and subsequently assigned the same panel, reducing the unique panel count.

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Zenz, GeraldThe headrace - main artery of hydropower stations / Der Triebwasserweg - Hauptschlagader der SpeicherkraftwerkeGeomechanics and Tunnelling2/201178Editorial

Kurzfassung

Keine Kurzfassung verfügbar.

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The History of the Theory of StructuresUnternehmerBrief Bauwirtschaft12/201820Buchtipps

Kurzfassung

Keine Kurzfassung verfügbar.

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Strauss, A.The History of the Theory of Structures (Kurrer, K.-E.)Beton- und Stahlbetonbau1/200974Bücher

Kurzfassung

Keine Kurzfassung verfügbar.

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Krätzig, W. B.The History of the Theory of Structures, from Arch Analysis to Computational Mechanics (Kurrer, K.-E.)Bautechnik9/2008656-657Bücher

Kurzfassung

Keine Kurzfassung verfügbar.

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The History of the Theory of Structures. From Arch Analysis to Computational Mechanics (Kurrer, K.-E.)Mauerwerk3/2009163-164Fachliteratur

Kurzfassung

Keine Kurzfassung verfügbar.

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Kurrer, Karl-EugenThe History of Theoretical, Material and Computational Mechanics - Mathematics meets Mechanics and Engineering. From E. Stein (ed.)Steel Construction2/2014132Book review

Kurzfassung

Keine Kurzfassung verfügbar.

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Sobek, W.; Trumpf, H.; Stork, L.; Weidler, N.The Hollaenderbruecke - Economic and architecturally sophisticated design employing steel and GFRPSteel Construction - Design and Research1/200834-41Articles

Kurzfassung

Keine Kurzfassung verfügbar.

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Roberts, J.The impact of the code for sustainable homes on masonry house construction in EnglandMauerwerk4/2010232-238Berichte

Kurzfassung

In England masonry remains the predominant form of house construction and accounts for over 80 % of all new dwellings. The rate of replacement of the housing stock in the UK remains low and each dwelling is required to have a viable working life in excess of 100 years. This requires forms of construction that are durable, with low maintenance costs and that are sufficiently flexible to cope with extension, alteration and changes in performance requirements.
The Code for Sustainable Homes takes a more holistic approach to the design requirements for dwellings than the Building Regulations and the Code Levels with which house builders are required to comply will be increased over a comparatively short period of time. This paper examines the Code requirements and indicates how the manufacturer and designer can provide masonry constructions that address the various code levels.

Auswirkungen der Norm für nachhaltigen Wohnungsbau auf den Mauerwerksbau in England.
In England bleibt Mauerwerk die vorherrschende Bauweise beim Hausbau und macht über 80 % aller neuen Wohnungen aus. Der Anteil des Bestandsersatzes im Wohnungsbau im Vereinigten Königreich ist niedrig. Somit ergibt sich ein Bedarf an nachhaltig flexibler Gestaltung des Wohnraums mit einer Lebensdauer von mehr als 100 Jahren. Dies erfordert Konstruktionsformen, die dauerhaft sind, mit geringen Unterhaltskosten auskommen und die flexibel genug sind, um Erweiterungen, Umbauten und Veränderungen im Anforderungsspektrum zu ermöglichen.
Die Norm für nachhaltigen Wohnungsbau folgt einem ganzheitlicheren Ansatz für die konstruktiven Anforderungen an Wohngebäude als die bestehenden Baunormen. Die normativen Anforderungen, welche das bauende Gewerbe zu erfüllen hat, werden sich in einem vergleichsweise kurzen Zeitraum erhöhen. Dieser Aufsatz untersucht die Anforderungen der Norm und zeigt, wie die Hersteller und Konstrukteure Mauerwerksbauten gestalten können, so dass diese den verschiedenen Normkategorien genügen.

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Weidner, Stefanie; Kelleter, Christian; Haase, Walter; Sternberg, Paula; Geiger, Florian; Bischoff, Manfred; Burghardt, Timon; Honold, Clemens; Binz, Hansgeorg; Wagner, Julia; Böhm, Michael; Sawodny, OliverThe implementation of adaptive elements into an experimental high-rise buildingSteel Construction2/2018109-117Articles

Kurzfassung

Dedicated to our speaker, Prof. Werner Sobek, in honour of his 65th birthday
In 2017, the University of Stuttgart started a Collaborative Research Centre with the title Adaptive Skins and Structures for the Built Environment of Tomorrow. The goal of this research project is to find an answer to today's most urgent social and ecological questions as the global population continuously increases and the available resources remain limited. As the central approach to the solution of this problem, adaptive elements will be included in the structure, the interior and the façade of an experimental 37 m tall building. This paper introduces the topic of adaptivity in building structures and provides an overview of the research topics applied in this globally unique adaptive high-rise building. Due to the complexity of research topics of this Collaborative Research Centre, this paper only covers the research concerning the experimental high-rise building.

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The IMS Student Project Awards 2015 / Awards der IMS für Studienprojekte 2015Mauerwerk3/2015242Wettbewerbe

Kurzfassung

Keine Kurzfassung verfügbar.

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Sagaseta, JuanThe influence of aggregate fracture on the shear strength of reinforced concrete beams: an experimental and analytical research projectStructural Concrete4/2013401-414Technical Papers

Kurzfassung

High-performance concretes such as high-strength concrete (HSC) or lightweight aggregate concrete (LWAC) are generally used to reduce member sizes and self-weight, and to optimize the construction of reinforced concrete structures. The bond between the aggregate particles and the cement paste can be strong enough in HSC and LWAC to cause the aggregate to fracture at cracks, which in turn reduces the shear stress that can be transferred across cracks by means of aggregate interlock. Relatively smooth cracks can also develop in self-compacting concrete due to the low coarse aggregate content. The contribution of aggregate interlock to the shear strength of RC beams is uncertain and depends on parameters such as the amount of shear reinforcement or the contribution of arching action for loads applied close to the support. Existing tests on slender RC beams without shear reinforcement have shown that shear strength is reduced by aggregate fracture. However, there is a lack of similar test data for members with stirrups and for members with varying shear span/effective depth ratios. This paper reviews the findings and contributions in this area from the experimental and analytical research of the author's PhD thesis, which was awarded the fib Achievement Award for Young Engineers in 2011.

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Walton, Gabriel; Diederichs, Mark; Punkkinen, AllanThe influence of constitutive model selection on predicted stresses and yield in deep mine pillars - A case study at the Creighton mine, Sudbury, CanadaGeomechanics and Tunnelling5/2015441-449Topics

Kurzfassung

Based on recent advances in modelling the post-yield behaviour of brittle rock, the authors have developed a calibrated inelastic model of the 7,910 level (2.4 km depth) at the Creighton Mine in Sudbury, Ontario, Canada using data collected from the monitoring of pillar dilatancy. While this calibrated model represents a state-of-the-art continuum approach for capturing the progressive development of yield and stresses in mine pillars, alternative state-of-practice approaches (elastic and perfectly plastic material models, for example) represent potentially acceptable options for practical application.
The purpose of this study is to examine the influence of constitutive model choice on stress paths throughout the pillar system at the mining level of interest. The strengths and limitations of various material models are compared and contrasted. Elastic models are shown to adequately represent the larger scale pillar system behaviour from a stress transfer perspective, whereas the state-of-art brittle modelling approach is shown to be ideal for understanding specific pillar-scale stresses and yield.

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Bezuijen, A.The influence of grout and bentonite slurry on the process of TBM tunnelling / Der Einfluss von Ringspaltmörtel und Bentonitsuspension auf den TBM-VortriebGeomechanics and Tunnelling3/2009294-303Topics

Kurzfassung

The bentonite and grout flow around a TBM is elaborated, as well as grout flow along the lining. The calculated grout flow along the lining is compared with the results of measurements. Measurement data for the flow around the TBM are not available. Both the bentonite and the grout are modelled as a Bingham liquid and it will be shown that, due to the relatively low flow velocities, the yield stress is the governing parameter. The results of the calculations show that both the flow around the TBM and the flow around the lining may significantly influence loading on the TBM, the soil, and the lining. The bentonite and grout flow around the TBM may result in a lower volume loss than calculated when assuming that the soil follows the tapered TBM. The grout flow and especially grout consolidation lead to lower pressures around the lining if the tunnel is constructed in sandy soil.

Der Bentonit- und Mörtelfluss um eine TBM und der Mörtelfluss entlang der Auskleidung werden diskutiert. Der berechnete Mörtelfluss entlang der Auskleidung wird mit Messdaten verglichen. Für die Strömungen um eine TBM existieren keine Messdaten. Sowohl der Bentonit als auch der Mörtel werden als Bingham Flüssigkeit modelliert, und es wird gezeigt, dass wegen der relativ niedrigen Strömungsgeschwindigkeiten die Fließspannung der bestimmende Parameter ist. Die Ergebnisse der Berechnungen zeigen, dass sowohl die Strömung um die TBM als auch entlang der Auskleidung einen bedeutenden Einfluss auf die Belastung der TBM, des Bodens und der Auskleidung haben. Der Bentonit- und Mörtelfluss um die TBM kann einen niedrigeren Volumenverlust zur Folge haben als berechnet, wenn man annimmt, dass der Boden der konisch zulaufenden TBM folgt. Der Mörtelfluss und besonders die Mörtelverfestigung führen zu einem niedrigeren Druck auf die Auskleidung wenn der Tunnel in sandigem Boden errichtet wird.

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Heinemeyer, Christoph; Feldmann, MarkusThe influence of rivet corrosion on the durability of riveted connectionsSteel Construction3/2011188-192Articles

Kurzfassung

From the beginning of structural steel construction until the 1950s, steel bridges were riveted structures. Rivets have not only been used for joining members as bolts are today used for but also for forming cross sections by joining the section elements e.g. web and flanges.
From this kind of bridges thousands - among many famous bridges - still fulfil the function that they have been erected for.
Rivets are often particular locations of accelerated corrosion in riveted bridges. In particular the heads of the rivets are subject of rust and corrosion. Therefore the question is whether and how much the pre-stressing effect of the rivet will be affected by the material degradation of the rivet’s head, such that the load deformation and the fatigue behaviour will be reduced. The pre-stress of a rivet reduces the stress-peak that is caused by the hole in the connection and is thus of big importance for the fatigue resistance.
The following paper presents latest investigations on the effect of rivet head corrosion on the pre-stressing of the rivet by means of milling the rivet’s head and numerical simulations. Fatigue tests are presented that give first results for the assessment of the residual lifetime of riveted connection with reduced rivet stress.
The paper also shows how the results of the investigations have been considered in an existing riveted bridge from 1920 of 2,3 km length.

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Gehring, K.The influence of TBM design and machine features on performance and tool wear in rock / Der Einfluss von TBM-Konstruktion und Maschineneigenschaften auf Leistung und Werkzeugverbrauch in GesteinGeomechanics and Tunnelling2/2009140-155Topics

Kurzfassung

Performance and tool consumption are decisive factors in the economical application of TBMs. Therefore the most accurate possible prediction of penetration and cutter life, the commonly used measures, is of great importance. The potential accuracy is certainly restricted by the boundary conditions of application underground in rock. Apart from the characteristics of the prevailing rock, prediction models must also take into account parameters representing the design and layout of the TBM used (for example, parameters referring to dimensions and installed forces).It is the aim of this paper to provide a survey not only of all those features and parameters of TBMs, whose influence on penetration and cutter life has been already recognized and investigated, but also of those whose evaluation is still pending (e.g. the stiffness of the cutter head). Only those parameters are addressed which are assumed to be influential.
The evaluated correlations are predominantly presented in tendency diagrams. This enables the interaction of more parameters to be displayed better. Furthermore an extrapolation of such diagrams is easier, allowing their application in prediction models and also coping with future technical developments in TBM technology.

Leistung und Werkzeugverschleiß sind entscheidende Parameter für den wirtschaftlichen Einsatz von TBM. Daher ist eine äußerst genaue Prognose der Penetration und der Meißellebensdauer ? die im Allgemeinen verwendeten Maße ? von großer Bedeutung. Die machbare Genauigkeit ist durch Randbedingungen ? untertägiger Einsatz im Fels ? eingeschränkt. Neben den Eigenschaften des anstehenden Gebirges müssen die Vorhersagemodelle auch die durch Konstruktion und Ausführung der verwendeten TBM vorgegebenen Parameter berücksichtigt werden, z. B. Maße und Kräfte.
Ziel dieses Beitrags ist, eine Übersicht aller Merkmale und Parameter einer TBM zu geben, nicht nur die, deren Einfluss auf Penetration und Meißellebensdauer bereits erkannt worden ist, sondern auch solche, deren Bewertung noch aussteht (z. B. die Steifigkeit des Bohrkopfs). Dabei werden nur die Parameter behandelt, die als einflussreich angenommen werden.
Die untersuchten Zusammenhänge werden vorzugsweise in Tendenzdiagrammen dargestellt. Dies ermöglicht eine bessere Darstellung der Wechselwirkung mehrerer Parameter. Weiterhin ist die Extrapolation solcher Diagramme einfacher, wodurch ihre Anwendung in Prognosemodellen ermöglicht wird und sie auch zukünftigen Entwicklungen in der TBM-Technik gewachsen sind.

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Eberl, S.; Restner, U.; Galler, R.; Mali, H.The Influence of the Parameter "Temperature" on the Abrasiveness of RockGeomechanik und Tunnelbau1/200877-83Fachthemen

Kurzfassung

The article deals with the influence of temperature produced in the cutting process on rock abrasiveness and tool wear. Basically it was to clarify which effects take place when quartz or rock with significant quartz content is heated up to a certain temperature. Does the quartz jump from low into high quartz happening at 573 °C cause an increase in abrasiveness of mineral and rock or not? To find out, a certain number of Cerchar abrasiveness index tests were done for a detailed investigation of this topic. Additionally, to get a better understanding what really happens inside rock structure additionally other rock parameters like unconfined compressive strength, Brazilian tensile strength, ultrasonic wave velocity and density were determined on untreated and heated and subsequently cooled down rock samples. The final output of the research work showed that rocks show a very specific and significant reaction to thermal stresses induced into their structure resulting in a different behaviour regarding abrasiveness and fracturing.

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Moga, I.; Moga, L.The Influence of the thermal insultion of the window frameworks on the energetic performance of the windowBauphysik6/2008420-425Fachthemen

Kurzfassung

The paper presents the energetic performances of a window in diverse constructive realization solutions and the thermal protection of its frame. The study made has at its basis the numeric analysis of the temperature field upon the effect made by the joining of the thermal insulation from the walls on the embrasures of the window hole. The heat transfer through the window- wall- insulation ensemble was determined with the help of the "WINDOW- WALL" calculus program derived from the calculus program CIMPSPAT, made by the authors in the variant 2008 (first variant in 1980) written in the programming language Delphi under Windows environment. The analysis of the interior microclimate conditions existing in the dwelling houses from our country, leads to the necessity of a better knowing of the heat transfer phenomena closer to the real phenomenon that takes place in the case of the windows placed in different situations of exploitation. The practical finding of different behavior of windows, the condense phenomenon met on the interior surface of the window framework and the contour in which the window is placed, calls for the necessity of the calculus presented in the paper.

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