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Vienna, Austria

Mahr T.,Waagner Biro Stahlbau AG | Fink J.,Vienna University of Technology
Large Structures and Infrastructures for Environmentally Constrained and Urbanised Areas

In this paper, a simplified method to calculate the dynamic response of railway bridges under train service is introduced. Response spectrum analysis, which has proved itself in structural dynamics, is adopted for the given problem. If essential parameters like the natural frequency, the mass, the span width and the damping of a bridge are known, the maximum response quantities can be looked up in a diagram. The preparation of the response spectra diagrams is computationally intensive but they provide an easy and quick way to get accurate results. This method is exemplified for single span bridges and the load models defined in Eurocode. However, it is possible to expand the theory on more complex bridge systems and other load models without difficulty. With the aid of this method, the maximum dynamic response of a bridge under moving loads can be calculated in an efficient and convenient way without lacking the accuracy required by the current design-codes. Source

For the past century, architects have been using cylinders, cones, rotational and ruled surfaces for their designs. Meanwhile computers and corresponding software are necessary for throughout the architectural design and planning of the construction industry. Whether it is the draft of drawings or the design of new complex building shapes, working with digital content has become the standard for the industry. There is a continuous tendency to give up linear forms with easily manageable numbers of the same elements. Free-form structures originated by the creativity of architects beginning in the last decade of the previous millennium have developed to symbols of elegance, grace, progress, and innovation. The construction of arbitrarily shaped building envelopes necessitates the computerized design and calculation of large numbers of unique elements. This iconic or landmark architecture is commonly used to emphasize the brands of enterprises. To transfer the architectural concept into built reality, an intense collaboration of geometrical and structural engineers combined with production and material management experience is necessary to standardize complexity and hence increase the feasibility of the design. © Ernst & Sohn Verlag für Architektur und technische Wissenschaften GmbH & Co. KG, Berlin. Source

Weimann G.,Waagner Biro Stahlbau AG | Henriksen T.,Waagner Biro Stahlbau AG | Keri S.,Waagner Biro Stahlbau AG

The Glazed Link Building forms a link between the Manchester Town Hall and the neighbouring Central Library. The architectural office is Ian Simpson Associates. The Glazed Link rises approx. 7,9 m and measures approx. 10,6 m × 20,5 m. The roof is made of welded stainless steel and features a mirror polished soffit built in a highly curved cloud shape. It is supported by a circumferential glass wall which consists of 26 laminated glass elements (13 single curved, 13 flat). Absolute precision in engineering, manufacturing and installation are the guarantor for the realisation of this novel and spectacular glass sculpture. © 2015 Ernst & Sohn GmbH & Co. KG. Source

The new terminal building was opened at the Baku airport (Azerbaijan) for flight operations. Developed in collaboration with an international team of planners project shows the challenges that need to be tackled when building in the region. The present article presents the development process for the geometry and the structural concept, with special emphasis on the severity of the seismic load and its consequences on the design of the tolerance concept for the building envelope. Furthermore, a presentation is made of the particularities of the complex fabrication and installation processes that made the realization of such a challenging geometry out of a steel-glass structure possible. © Ernst & Sohn Verlag für Architektur und technische Wissenschaften GmbH & Co. KG, Berlin · Stahlbau. Source

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