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DGGT-Mitteilungen: geotechnik 4/2016geotechnik4/2016285-290DGGT-Mitteilungen

Kurzfassung

Keine Kurzfassung verfügbar.

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Persönliches: geotechnik 4/2016geotechnik4/2016290-292Persönliches

Kurzfassung

• Nachruf Dr.-Ing. Uwe Lehmann
• Prof. Dr.-Ing. Walter Lächler verstorben
• Verleihung der Beuth-Denkmünze an Prof. Dr.-Ing. E. h. Manfred Nußbaumer M.Sc.

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Tagungsberichte: geotechnik 4/2016geotechnik4/2016292-293Tagungsberichte

Kurzfassung

Keine Kurzfassung verfügbar.

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CBTR-Nachrichten: geotechnik 4/2016geotechnik4/2016293-296CBTR-Nachrichten

Kurzfassung

Keine Kurzfassung verfügbar.

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aktuell: geotechnik 4/2016geotechnik4/2016296-297geotechnik aktuell

Kurzfassung

Keine Kurzfassung verfügbar.

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Zuschrift zum Beitrag "Verbesserung der Nutzerfreundlichkeit des Euro-codes 7, Geotechnische Bemessung. Stand der Bearbeitung durch die Initiative PraxisRegelnBau e.V. (PRB)" von Bernd Schuppener et al. (geotechnik 4/2014)geotechnik4/2016297Zuschriften

Kurzfassung

Keine Kurzfassung verfügbar.

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Termine: geotechnik 4/2016geotechnik4/2016297-298Termine

Kurzfassung

Keine Kurzfassung verfügbar.

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Inhalt: Mauerwerk 4/2016Mauerwerk4/2016Inhalt

Kurzfassung

Keine Kurzfassung verfügbar.

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Graubner, Carl-AlexanderReinforced Masonry - why not in Germany too? / Bewehrtes Mauerwerk - Warum nicht auch in Deutschland?Mauerwerk4/2016257-258Editorials

Kurzfassung

Keine Kurzfassung verfügbar.

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Kranzler, ThomasShear tests on external clay unit masonry walls / Monolithische Ziegelaußenwände unter SchubbeanspruchungMauerwerk4/2016259-270Fachthemen

Kurzfassung

Monolithic external walls are commonly made of thermally insulated clay blocks that do not require any additional external thermal insulation such as an external thermally insulated composite system (ETICS). To reduce thermal bridge losses, the support length (a) of the slab on the wall is shorter than the wall thickness (t): a < t. The influence on the shear capacity of the respective masonry walls has not yet been tested and analysed. The paper presents the results of shear tests on monolithic external walls with a reduced support length under static-cyclic and pseudo-dynamic loading. The test results will be compared with the shear resistance calculated according to DIN EN 1996 with consideration of the German National Annex and the results according to the relevant Technical Approval.

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Bulletin "Render on clay masonry" / Merkblatt "Putz auf Ziegelmauerwerk"Mauerwerk4/2016270Firmen und Verbände

Kurzfassung

Keine Kurzfassung verfügbar.

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Asenov, Milos; Mojsilovic, Nebojsa; Micic, TatjanaReliability of masonry walls subjected to in-plane loading: A slip failure along head joints / Zuverlässigkeit von Mauerwerkswänden bei Belastung in der Ebene: Versagen entlang der StoßfugenfluchtMauerwerk4/2016271-283Fachthemen

Kurzfassung

Masonry structures are a sustainable, economical and traditionally widely used type of construction. However, current masonry design codes are rather conservative, so there is a growing need for revision i.e. calibration of safety factors to improve the allocation of material resources. In this paper, we investigate the probability of occurrence of slip failure along head joints (perpends) in masonry subjected to in-plane loading. An appropriate limit state function is established and the masonry material properties and loads are defined as random variables in order to simulate likelihood of occurrence of a slip failure regime along the head joints. Furthermore, an example of masonry wall with probabilistic analysis outcomes using Monte Carlo simulation is presented and recommendations for further work are provided.

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Martens, Dirk R.W.New approach for spacing of movement joints in reinforced and unreinforced masonry veneer walls. Part 1: Unreinforced masonry / Neue Bemessungsmethode für die Abstände von Dehnungsfugen in bewehrten und unbewehrten Verblendmauerwerksschalen. Teil 1: Unbewehrtes MauerwerkMauerwerk4/2016284-294Fachthemen

Kurzfassung

The spacing of movement joints has been subject of many discussions. The current methods for the determination of the spacing of movement joints are based on local traditions and bad experience with cracked veneer walls. This has resulted in various design rules throughout Europe with very stringent limits for spacing of movement joints. According to EC6, one of the solutions for increasing the spacing of movement joints is to introduce bed joint reinforcement, although unfortunately no specific design rules are given. Until now, most scientific research has been focused on numerical simulations without taking time-dependent effects into account, which is a conservative approach. In this paper, a new approach is described. It is based on Peter Schubert's model and on practical experience with masonry buildings.

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Saenger, Dorothea; Brameshuber, WolfgangBond behaviour between textile reinforcement and mortar under tensile loading / Verbundverhalten zwischen textiler Bewehrung und Mörtel unter ZugbeanspruchungMauerwerk4/2016295-304Fachthemen

Kurzfassung

Extensive experimental investigations are currently being carried out on various selected materials covering a wide range of properties to achieve a deeper knowledge about the bond performance of textile reinforced mortar (TRM) for masonry strengthening. The objective of the tests includes investigations of the bonding behaviour between alkali-resistant glass textile reinforcement and mortar under tensile loading to determine the required anchorage and overlapping lengths of the reinforcement in the mortar-based material. This article describes the test methods used as well as the results obtained so far. This research will also examine debonding of the mortar-based reinforcement system and the masonry surface under shear load. The definition of these bond parameters is necessary for the design of textile-reinforced masonry components, which will be developed in the near future. The research is also intended to contribute to the finding or even designing of matching alkali-resistant glass textiles specifically for use in masonry.

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Butenweg, Christoph; Marinkovi , Marko; Kubalski, Thomas; Klinkel, SvenMasonry infilled reinforced concrete frames under horizontal loading / Stahlbetonrahmen mit Ausfachungen aus Mauerwerk unter horizontalen BelastungenMauerwerk4/2016305-312Fachthemen

Kurzfassung

The behaviour of infilled reinforced concrete frames under horizontal load has been widely investigated, both experimentally and numerically. Since experimental tests represent large investments, numerical simulations offer an efficient approach for a more comprehensive analysis. When RC frames with masonry infill walls are subjected to horizontal loading, their behaviour is highly non-linear after a certain limit, which makes their analysis quite difficult. The non-linear behaviour results from the complex inelastic material properties of the concrete, infill wall and conditions at the wall-frame interface. In order to investigate this non-linear behaviour in detail, a finite element model using a micro modelling approach is developed, which is able to predict the complex non-linear behaviour resulting from the different materials and their interaction. Concrete and bricks are represented by a non-linear material model, while each reinforcement bar is represented as an individual part installed in the concrete part and behaving elasto-plastically. Each brick is modelled individually and connected taking into account the non-linearity of a brick mortar interface. The same approach is followed using two finite element software packages and the results are compared with the experimental results. The numerical models show a good agreement with the experiments in predicting the overall behaviour, but also very good matching for strength capacity and drift. The results emphasize the quality and the valuable contribution of the numerical models for use in parametric studies, which are needed for the derivation of design recommendations for infilled frame structures.

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eco-INSTITUT cooperation partner to the IBU / eco-INSTITUT Kooperationspartner des IBUMauerwerk4/2016312Firmen und Verbände

Kurzfassung

Keine Kurzfassung verfügbar.

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Sommerlade, Kai; Seim, WernerBracing systems in masonry buildings. Part 1: Simple application of FE programs / Aussteifungssysteme im Mauerwerksbau. Teil 1: Einfache Anwendung von FE-ProgrammenMauerwerk4/2016313-320Fachthemen

Kurzfassung

Due to the low tensile strength of masonry perpendicular to the bed joint, masonry wall panels have non-linear material properties. Assuming simple elastic constitutive laws, this article presents two modelling variants, which consider the lack of tensile strength in a simple manner. Both variants are investigated for their advantages and disadvantages. In a second part of the article, the application of the methods will be illustrated through the example of a four-storey building.

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Efficiency House Plus Burghausen - Monitoring conclusion / Effizienzhaus Plus Burghausen - Abschluss des MonitoringsMauerwerk4/2016321-326Berichte

Kurzfassung

Keine Kurzfassung verfügbar.

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Graubner, Carl-AlexanderProf. Wolfgang Brameshuber - 60th birthday / Wolfgang Brameshuber - 60 JahreMauerwerk4/2016327-328Persönliches

Kurzfassung

Keine Kurzfassung verfügbar.

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16th International Brick and Block Masonry Conference IBMAC in Padua / 16. Internationale Mauerwerkskonferenz IBMAC in PaduaMauerwerk4/2016328Veranstaltungen

Kurzfassung

Keine Kurzfassung verfügbar.

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Clinker bricks as a temporary energy source / Klinker als temporäre EnergiequelleMauerwerk4/2016329-330Aktuell

Kurzfassung

Keine Kurzfassung verfügbar.

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Wienerberger Brick Award 2016: Impressive brick architecture all over the world / Wienerberger Brick Award 2016: Beeindruckende Ziegelarchitektur weltweitMauerwerk4/2016330-334Wettbewerbe

Kurzfassung

Keine Kurzfassung verfügbar.

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Deutscher Ziegelpreis 2017 - Call for Entries / Auslobung Deutscher Ziegelpreis 2017Mauerwerk4/2016334-335Wettbewerbe

Kurzfassung

Keine Kurzfassung verfügbar.

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38th Darmstadt Massive Building Seminar "Practical Regulations in Building" / 38. Darmstädter Massivbauseminar "Praxisgerechte Regelwerke im Bauwesen"Mauerwerk4/2016335Termine

Kurzfassung

Keine Kurzfassung verfügbar.

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Ulrich Finsterwalder IngenieurbaupreisMauerwerk4/2016336Wettbewerbe

Kurzfassung

Keine Kurzfassung verfügbar.

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