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Autor(en) Titel Zeitschrift Ausgabe Seite Rubrik
Tandler, Jens Experimentelle und numerische Untersuchungen an Hochleistungsverbindungen mit Zahnleisten Stahlbau 1/2016 76 Dissertationen

Kurzfassung

Keine Kurzfassung verfügbar.

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Aktuell: Stahlbau 1/2016 Stahlbau 1/2016 77-79 Aktuell

Kurzfassung

Nominierungen zum Brückenbaupreis 2016
Testturm für Aufzüge

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Termine: Stahlbau 1/2016 Stahlbau 1/2016 80 Termine

Kurzfassung

Keine Kurzfassung verfügbar.

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Content: Steel Construction 1/2016 Steel Construction 1/2016 Content

Kurzfassung

Keine Kurzfassung verfügbar.

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Annual table of contents 2015 Steel Construction 1/2016 Annual table of contents

Kurzfassung

Keine Kurzfassung verfügbar.

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Braun, Matthias; da Costa, Job Duarte; Obiala, Renata; Odenbreit, Christoph Design of single-span beams for SLS and ULS using semi-continuous beam-to-column joints - Part 1: Beams with constant bending stiffness and joints according to EN 1993-1-8 Steel Construction 1/2016 1-15 Article

Kurzfassung

This article explains a method for determining how semi-continuous joints influence the deflection, natural frequency and bending moment distribution of single-span beams with constant inertia under uniformly distributed load. The method is adequate for simple hand calculations, allowing the structural engineer to assess potential savings already in the pre-design phase. Further, the economical potential of semi-continuous joints according to EN 1993-1-8 [1] is demonstrated by an application example.

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European design standards widespread in the building sector Steel Construction 1/2016 15 News

Kurzfassung

Keine Kurzfassung verfügbar.

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Voth, Andrew P.; Packer, Jeffrey A. Circular hollow through plate connections Steel Construction 1/2016 16-23 Articles

Kurzfassung

This article reviews prior research on connections between through-plates and circular hollow sections (CHS) and presents a finite element (FE) study validated against laboratory experiments. The FE analysis indicates that, for a given geometric configuration, the behaviour of through-plate-to-CHS connections closely matches the sum of branch-plate-to-CHS connection behaviour in plate tension and compression. A connection design strength, which is shown to be valid for a wide range of connection geometries and which is the sum of existing design recommendations for branch plate-to-CHS connections loaded in axial tension and compression, is hence proposed for through-plate-to-CHS T-connections. This therefore enables maximum advantage to be taken of the capacity of this type of “reinforced” tubular connection.

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Unterweger, Harald; Taras, Andreas; Feher, Zoltan Lateral-torsional buckling behaviour of I-section beam-columns with one-sided rotation and warping restraint Steel Construction 1/2016 24-32 Articles

Kurzfassung

In many practical applications, columns are often fixed to a practically rigid concrete structure at the column base. This additional restraint should increase the real load-carrying capacity if the section is susceptible to lateral-torsional buckling. However, this effect is rarely taken into account in design, as most current design rules do not provide sufficient guidance on how to account for this additional rigidity, and so the column base fixity is often ignored. The background to the verification formulae for lateral-torsional buckling (LTB) of I-section beam-columns in Eurocode EN 1993-1-1 consists of comprehensive parametric numerical studies for members with “end fork” conditions only, i.e. for members with free rotational and warping deformations at both ends. However, these specific boundary conditions are not clearly mentioned in the code.
In the study presented in this paper, a comprehensive series of numerical FEM analyses for the realistic lateral-torsional buckling behaviour of beam-columns with one-sided rotation and warping restraints was carried out and compared with the results based on the LTB resistance of the Eurocode, calculated with increased idealized buckling loads (Ncr, Mcr) that account for the end restraints. The most important results of this study are presented in this paper and the ultimate capacity is compared for two different beam-column design methods in Eurocode 3: the interaction concept (EN 1993-1-1, 6.3.3) and the general method (EN 1993-1-1, 6.3.4).
In addition, a simplified formula is given for the additional bi-moment at the end restraint, which is to be used for designing the welded joint. Finally, an improved LTB design curve (buckling reduction factor &khgr;LT) is presented, developed at the authors' institution, which may be used for the cases studied.

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Zió?ko, Jerzy; Mikulski, Tomasz; Supernak, Ewa Deformations of the steel shell of a vertical cylindrical tank caused by underpressure Steel Construction 1/2016 33-36 Articles

Kurzfassung

Underpressure in a tank with a fixed roof may arise in the final stage of its construction as well as during its usage. After completing the construction, when the tank is empty and all manholes and valves, through which air could get into the tank, are tightly closed, underpressure may arise in the case of a sudden change in the weather (air pressure and temperature), which is particularly dangerous in spring or summer. When the tank is in use, underpressure may arise if breather valves are obstructed, e.g. covered by snow during pumping out a product stored in the tank. Underpressure may cause extensive deformations of the shell or the roof of the tank. However, the shell undergoes deformation more frequently, since the roof has a stiff supporting structure.
This article presents stages of deformations of the tank shell and their development from the occurrence of the first deformation to either removal of the causes of underpressure or cracking of the steel shell and thus automatic equalization of pressure inside the tank with atmospheric pressure.

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Gorenc, Barbara; Beg ?, Darko Curtain wall façade system under lateral actions with regard to limit states Steel Construction 1/2016 37-45 Articles

Kurzfassung

During high wind or earthquake action, high-rise multi-storey buildings respond with relatively large storey drifts. The building envelope, in this case a curtain wall, exposed to this in-plane shear resists the action with its drift capacity. This paper describes tests on two different configurations of a newly developed unitized curtain wall, “Qbiss Air” (QAir), using three different cyclic protocols. The protocols were derived on the basis of the serviceability limit state for regions with moderate to high wind and seismicity. The details and configuration influence the response of the system significantly, so the design of the structure can provide accurate information for the design of such systems.

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Pirmoz, Akbar; Ahadi, Parviz; Farajkhah, Vahid Finite element analysis of extended stiffened end plate link-to-column connections Steel Construction 1/2016 46-57 Articles

Kurzfassung

The applicability of extended stiffened end plate (ESEP) connections used as link-to-column connections in eccentrically braced frames (EBFs) with long (flexural yielding) links is examined in this paper. A finite element method (FEM) is used for this purpose, based on a validated parametric FE benchmark. Analysing the numerical model of an ESEP connection designed to the recent seismic design rules for special moment frames reveals that the link-to-column connections of EBFs sustain more severe conditions than the moment connections of moment-resisting systems. The design approach implemented is examined and the results are discussed. The results demonstrate that ESEP connections can be used as a successful alternative for the link-to-column connections of EBFs and the system with this type of connection can achieve the required rotations for long or flexural links.

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Machelski, Czes?aw; Toczkiewicz, Robert Effects of connection flexibility in bridge girders under moving loads Steel Construction 1/2016 58-66 Articles

Kurzfassung

This paper looks at the problem of connection flexibility in steel-concrete bridge girders under moving loads. The static action of the load changing location on the structure is considered. An analytical model of the girder is used assuming strain discontinuity at the steel-concrete interface as a result of beam-plate partial interaction. The effects of a flexible connection are characterized by the proposed index defined on the basis of the internal forces in the girder. This index can be calculated during loading tests on the basis of the neutral axis position at the section of the girder considered. Numerical analyses show that values of the index characterizing beam-plate interaction depend on the position of the load on the structure and the function describing connection stiffness.

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Keil, Andreas; Plieninger, Sven; Linden, Sebastian; Sander, Christiane Simple Bridges Steel Construction 1/2016 67-73 Report

Kurzfassung

Many famous footbridges show have a spectacular, eye-catching design or functionality. They feature extravagant structures, large spans or outstanding locations and they are globally published and widely discussed amongst professionals and laymen.
However, there are smaller and simpler bridges, whose good and appropriate design, structural behaviour and sustainability can only be seen at the second look. While not having showy features they are beautiful, reasonable, efficient, sometimes trendsetting but always interesting enough to justify careful attention.
This paper presents five bridges - designed by schlaich bergermann partner, completed within the past few years - that are characterized especially by their apparent simplicity: a simple beam bridge in Backnang, three arch bridges in Dortmund, a prestressed concrete beam bridge in Hamburg, a two-span stress ribbon bridge in Schwäbisch Gmünd and a fixed-end beam bridge in Esslingen.

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ECCS news: Steel Construction 1/2016 Steel Construction 1/2016 74-77 ECCS news

Kurzfassung

Keine Kurzfassung verfügbar.

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Announcements: Steel Construction 1/2016 Steel Construction 1/2016 77 Announcements

Kurzfassung

Keine Kurzfassung verfügbar.

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Floating wind farms near Norway, Portugal and Japan Steel Construction 1/2016 78 News

Kurzfassung

Keine Kurzfassung verfügbar.

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Inhalt: UnternehmerBrief Bauwirtschaft 1/2016 UnternehmerBrief Bauwirtschaft 1/2016 Inhalt

Kurzfassung

Keine Kurzfassung verfügbar.

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Jahresinhaltsverzeichnis des 38. Jahrgangs 2015 UnternehmerBrief Bauwirtschaft 1/2016 Jahresinhaltsverzeichnis

Kurzfassung

Keine Kurzfassung verfügbar.

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Ernst & Sohn (Hrsg.) Gesamtausgabe UBB 1/2016 UnternehmerBrief Bauwirtschaft 1/2016 1-24 Gesamtausgabe

Kurzfassung

Komplette Monatsausgabe

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Schalk, Günther Wenn der Bürger entscheidet... UnternehmerBrief Bauwirtschaft 1/2016 1 Editorials

Kurzfassung

Keine Kurzfassung verfügbar.

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Kurz informiert: UnternehmerBrief Bauwirtschaft 12/2016 UnternehmerBrief Bauwirtschaft 1/2016 2 Kurz informiert

Kurzfassung

Der alljährliche Blick in die Kristallkugel
Projekt Zununftssicherung

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Leupertz, Stefan Streitbeilegung in Bausachen ohne Hilfe des Gerichts UnternehmerBrief Bauwirtschaft 1/2016 3-7 Berichte

Kurzfassung

Bauprozesse sind zeitaufwändig und schwerfällig.Weil sie zudem in aller Regel erst beginnen, wenn die Baumaßnahme abgeschlossen ist, liegen zwischen der Entstehung eines bauvertraglichen Streits und seiner gerichtlichen Bescheidung oft Jahre, bei größeren Prozessen über mehrere Instanzen nichtselten sogar eine Dekade und mehr. Solche Verfahren binden in erheblichem Umfang Zeit und - bei gewerblich tätigen Parteien - Personal; die dadurch bedingten Transaktionskosten sind enorm und rasch höher als der Ertrag aus einem (regelmäßig nur teilweise) erfolgreich geführten Bauprozess.

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Bundesverkehrsminister Dobrindt hält Festrede bei der BVMB UnternehmerBrief Bauwirtschaft 1/2016 8 Berichte

Kurzfassung

Bald ist es wieder soweit: Der traditionelle Tag der mittelständischen Bauwirtschaft inklusive Neujahrsempfang der Bundesvereinigung Mittelständischer Bauunternehmen e.V. (BVMB) findet in diesem Jahr am 15. Februar 2016 - wie seit Jahrzehnten üblich - in Bonn statt. Hier treffen sich alljährlich die “Macher und Entscheider” aus dem Bau-Mittelstand zum Erfahrungsaustausch mit Politik, Verwaltung und Auftraggeberseite aus ganz Deutschland. Bundesverkehrsminister Alexander Dobrindt hat bereits seine Teilnahme zugesagt und wird die Festrede halten.

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Wie sieht "barrierefrei" aus? UnternehmerBrief Bauwirtschaft 1/2016 8 Berichte

Kurzfassung

Wie sieht eine Stadt-, Quartiers- und Verkehrsentwicklung unter Berücksichtigung barrierefreier Aspekte aus? Dieser Frage gingen Experten bei einem “Zukunftsforum” im hessischen Friedberg nach. Die Anforderungen an einen barrierefreien Alltag mit planerischen und baulichen Konzepten zur Standort- und Raumplanung sind hoch und stellen die Beteiligten vor große Herausforderungen.

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