2. Veranstaltung der Fachsektionstage Geotechnik, 29. bis 30. Oktober 2019 in Würzburg
Vom Sprung ins Ungewisse ... 3. Workshop der Jungen Geotechniker am 28. März 2019 in Köln-Deutz
36. Baugrundtagung 2020 in Wiesbaden - “70 Jahre DGGT”
Compliance-Leitlinien der DGGT
Arbeitskreise aufgelöst
Fachsektion Umweltgeotechnik
ISSMGE International Society for Soil Mechanics and Geotechnical Engineering
ISRM International Society for Rock Mechanics and Rock Engineering
IAEG International Association for Engineering Geology and the Environment

Aus der DGGT-Nachwuchsförderung:
Rückblick auf den 13. IAEG Kongress in San Francisco
3. Workshop der Jungen Geotechniker

Prof. Dr.-Ing. Georg Heerten 70 Jahre
Zum 70. Geburtstag von Prof. Dr.-Ing. Thomas Richter
Hauke Zachert lehrt am Institut für Geotechnik und leitet den Bereich Offshore-Windenergie bei Arcadis

Nachruf: Abschied von der “guten Seele” der CBTR-Tagungen, Sybille Englert
Verabschiedung von Prof. Dr. jur. Klaus Dieter Kapellmann
Ehemalige BGH-Richter rücken Baugrund- und Tiefbaurecht in den Focus
Zusammenarbeit mit dem Internetportal www.baurechtsuche.de ausgeweitet
CBTR-Tagung in Regensburg am 27./28. Juni 2019 als Höhepunkt des Jahres
Der besondere Praxishinweis

Als Baufirma Leistung verweigern? Vorsicht!
Schaden auf der Baustelle - wann haftet die Baufirma?
Wer ist für die Verkehrssicherung verantwortlich?
Kündigung (1): Wann darf außerordentlich gekündigt werden?
Kündigung (2): Fristablauf - was nun?

Stiffness and strength of Dubai sedimentary rock
Zeitvariantes Materialverhalten von granularem Steinsalz und Simulation in numerischen Modellen
Numerical modelling of dynamic cone penetration into martian subsurface
Influences of water level changes on the behaviour of a slow moving landslide - in-situ-measurements, model tests and numerical analyses
Die Variabilität des Hohlraumverhältnisses von Sand und seine Auswirkung auf die Siedlung und die unendliche Hangstabilität
Praktische Anwendung injizierter Isolierkörper als Erschütterungsreduktionsmaßnahme
Laborversuche zur hydraulischen Risserzeugung in dreiaxial belasteten Granitquadern - Versuchsentwicklung, -durchführung und Analyse
A contribution to modeling of mechanized tunnel excavation
Kluft-Injektionen mit hohen Dichtheitsanforderungen
Baggergut im Deichbau - Ein Beitrag zur geotechnischen Charakterisierung und Erosionsbeschreibung feinkörniger, organischer Sedimente aus dem Ostseeraum zur Einschätzung der Anwendbarkeit
Zur Ursache von Schlosssprengungen und zu einbringbedingten Lageabweichungen von Spundwänden
Untersuchungen zum Einfluss der Spannungsgeometrie auf das Verformungs- und Schädigungsverhalten von Steinsalz
Böden mit hohem organischen Anteil
Numerical based identification of the pile-soil interaction in terms of the axial pile bearing capacity
Prüfverfahren zur Abschätzung der Langzeitbeständigkeit von Kunststoffdichtungsbahnen aus PVC-P für den Einsatz in Dichtungssystemen von Straßentunneln
On slope stabilization by piles
Applications and developments of Barodesy
Netzfreie Simulationen von Problemen in der Bodenmechanik
Entwicklung eines neuen analytischen Verfahrens zur Berechnung des Grundbruchwiderstands von unbewehrten und bewehrten Gründungspolstern
Analyse des Tragverhaltens von offenen Stahlrohrrammpfählen in nichtbindigen Böden unter statischer und zyklischer Axialbelastung
Rütteldruckverdichtung - Dynamische Verdichtungskontrolle auf Basis der Rüttlerbewegung
Geophysical and engineering geological karst reconnaissance on the Swabian Alb high plain, new line Wendlingen-Ulm, southwestern Germany

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10. RuhrGeo Tag 2019
13th Australia New Zealand Conference on Geomechanics 2019
18. Geotechnik-Tag 2019
34. Christian Veder Kolloquium
World Tunnel Congress 2019 - Tunnel and Underground Cities: Engineering and Innovation meet Archeology, Architecture and Art
5. Felsmechanik- und Tunnelbautag
12. Freiberger Geotechnik Kolloquium - 70. BHT 2019
7th International Symposium on Deformation Characteristics of Geomaterials
11. CBTR - Centrum für Deutsches und Internationales Baugrund- und Tiefbaurecht e.V. - Tagung
ISRM Congress 2019
Geotechnik-Kolloquium 2019 / Colloquium on Geotechnical Engineerging 2019
Fachsektionstage Geotechnik
68. Geomechanik Kolloquium
STUVA-Tagung 2019
Austrian Tunnel Competence Center

Fjordenhus (Fjord House), Vejle, Denmark, commissioned by KIRK KAPITAL, is the first building designed by Olafur Eliasson and Sebastian Behmann with Studio Olafur Eliasson. Rising out of the water, Fjordenhus forges a striking new connection between Vejle Fjord and the city centre of Vejle. Accessible by footbridge, the twenty-eight-metre-high building is formed by four intersecting cylinders with brick facades from which ellipsoidal negative spaces were removed to create complex curved forms and arched windows. The double-height ground floor, which is open to the public, is permeated by the fjord and contains two aqueous zones with site-specific artworks by Olafur Eliasson. (see p. 50 ff.) (Photo: Anders Sune Berg, 2018)

Greenhouse gas burdens and heat storage effects over the lifecycle of buildings / CO2-Tonnagen und Wärmespeichereffekte über den Lebenszyklus von Gebäuden
Matthias Günther: Economic significance of masonry construction / Die volkswirtschaftliche Bedeutung der Mauerwerksbauweise
Ronald Rast: Current development of building activity in residential construction / Aktuelle Entwicklung der Baukonjunktur im Wohnungsbau
Dietmar Walberg: Comparative consideration of standardised and serial residential building / Vergleichende Betrachtungen zum typisierten und seriellen Bauen im Wohnungsbau
Andreas Holm: New study on embodied energy in residential buildings to the zero-energy standard / Neue Studie zur grauen Energie von Wohngebäuden im Niedrigstenergiestandard
Erik Brehm: International overview of robotics in masonry building / Internationaler Überblick über den Stand der Robotertechnik im Mauerwerksbau

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The semi-probabilistic safety concept of divided safety factors for action and resistance of DIN EN 1990 [1] in combination with the structural design codes DIN EN 1996-1-1 [2] and DIN EN 1996-1-1/NA [3] include the requirement that acting normal forces NEd may not exceed the normal force resistances NRd for the structural design of masonry under bending compression. According to [3], fully plastic material behaviour can be assumed and the stress block used as the material law for masonry.
Building on this, design aids and their theoretical basis were presented in Part 1 of this scientific paper [4], which are comparable with the &ohgr; tables (called the &phgr; table here) and the general design diagram for massive construction.
The application of the design aids is described in this second part of this scientific paper through calculation examples and the connection with the calculation approaches of [3] is made clear.
The relation to the reduction factor &phgr;m, which covers effects of 2nd order theory, is also obtained. With known values of the load eccentricities according to 1st and 2nd order theory, the design task becomes the analysis of the loadbearing capacity of the masonry section at half wall height. Knowing &phgr;m, the load eccentricity e2 and the additional moment according to 2nd order theory can subsequently be determined, which does not ensue from the calculation equations of [3].
With the general design diagram, the values of compression zone height and the assumed load eccentricities of the acting normal forces, which result from the reset rule for masonry sections with high load eccentricities, can be directly read off, greatly improving the clarity of this procedure.

The successful structural verification of basement walls under earth pressure loading with light vertical loading is often difficult. This situation is often encountered for external basement walls under terrace doors, stairs, masonry light wells, etc., where the vertical loading that is theoretically necessary is absent. This makes it impossible to resist the acting flexural forces from earth using a vertical arch model alone. In such cases the basement wall must also resist the earth pressure in a horizontal direction. However, due to the fact the bending moment capacity of unreinforced masonry parallel to the bed joint is low you have the option here of using a textile-reinforced bed joint with longitudinal fibres of alkali-resistant glass or carbon fibre. With an appropriately adapted textile reinforcement in the bed joints, the masonry can fulfil the requirements for load-bearing capacity against earth pressure with a horizontal load transfer, even under a small vertical load. The same applies to infill walls subjected to high wind loads the bending moment capacities of which are also slightly parallel to and vertically to the bed joint and cannot be provably demonstrated on large infill surfaces and strong wind loads. The load-bearing can also be increased by improving the flexural strength parallel to the bed joint. The Chair of Structural Design in the Faculty of Architecture of the Technical University (TU) Dresden was carrying out extensive numerical and experimental studies for this purpose. In the journal Mauerwerk 01/2018 [1] first findings from small trial series have already been presented. In the meantime, a series of large-scale tests have additionally been performed to check the promising results of the small-scale tests with respect to their real applicability. This report should provide a combined insight into the work of the concluded research project.

The design/verification method in the Eurocodes is based on the partial safety concept. Eurocode 6 suggests a constant partial safety factor for the material &ggr;M for all design/verification problems, without consideration of model uncertainty in the design/verification formula. In the following, a model partial safety factor is determined for the problem of unreinforced masonry walls mainly subjected to vertical loading. For that purpose, the newly proposed formula for EC 6, annex G will be considered [1-3]. In order to cover all aspects in tests and to use the results for design purposes, several methods have been included in EN 1990 Annex D for design based on test data. In this study, the recommended methods in Annex D of EN 1990 for resistance of the material are used to extract the partial safety factors. A database including more than 119 experimental tests on unreinforced masonry shear walls is used to compare the model prediction and the test results and to determine the model partial safety factor.

The masonry and wall building for the reconstruction of the historic facades for the rebuilding of the Berlin Palace as the Humboldt Forum represent a unique challenge for the art of masonry, structural design and detailed design. In front of the modern reinforced concrete structure of the new palace building, the massive solid brick masonry wall, separated from it by mineral insulation, leads to an overall thickness for the historically reconstructed external wall that comes near to the average thickness of the baroque palace walls. The exceptional thickness of the brick wall serves as a substrate for the facade decoration elements of sandstone and together with the internal insulation, enables the requirements of the energy-saving regulations (EnEV) to be clearly exceeded.

Brick masonry is not only a question of building physics, building construction and durability, i.e. sustainability, but has much to do with aesthetics and making sense, which may have been forgotten in modern architecture with its absolute lack of décor. Masonry as an art form has been scarce since the era of brick expressionism. Recently, there have been some exceptions - and thoroughly welcome. The “Fjordenhus” in Vejle, Denmark, is an astonishing example.

The construction variant “cavity wall” is a considerable trend in new building projects and has shown growth rates of more than 8 % in newbuild projects in the last two years. Energy-saving building in combination with a great variety of design possibilities through various formats and colours in the selection of the facing bricks make this construction extremely popular, not only with architects, but also with building owners. Another important argument is based on the sustainability of this construction method and the materials used. This article is concerned with an innovation for the joint mortar in facing brick facades. The quick-mix S-FM mortar with its innovative and patented SECON binder technology combines both: ecology and a high degree of safety against leaching and efflorescence.

BAU 2019: “Design principles for modern building with unfired clay” - BAU 2019: “Entwurfsgrundsätze für den modernen Lehmbau”
16th winter seminar of Schwenk Putztechnik - 16. Winterseminar der Schwenk Putztechnik

VDI and buildingSMART certify basic BIM courses - VDI und buildingSMART zertifizieren BIM-Basiskurse
New Brochure “Safe earthquake-resistant building with lightweight concrete” - Neue Broschüre “Erdbebensicheres Bauen mit Leichtbeton”
Brochure about building waterproofing - Broschüre zum Thema Bauwerksabdichtungen
Initiative for recycling in building: Building industry continues success story - Initiative Kreislaufwirtschaft Bau: Bauwirtschaft schreibt Erfolgsgeschichte fort

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Zum Titelbild Ankunftshalle Bahnhof St. Gallen (CH) -
Der Bahnhof St. Gallen ist mit 80000 Bahnreisenden pro Tag der meist frequentierte Bahnhof der Ostschweiz. Im Rahmen der Umgestaltung des Bahnhofplatzes wird der Form der neuen Ankunftshalle besondere Beachtung geschenkt. Der markant platzierte Glaskörper stellt die Verbindung zwischen der Stadt und dem Bahnhof dar und ist nur auf vier Stahlstützen abgestellt. Das neue Wahrzeichen aus Stahl und Glas besticht durch seine Abmessungen von 26 m Länge, 22,5 m Breite und einer Höhe von 14 m. (Foto: Tuchschmid AG) Bericht siehe S. 45

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