Cable Supported Bridges: Concept and Design (3rd Edition) by Niels J. Gimsing, Christos T. Georgakis

By Niels J. Gimsing, Christos T. Georgakis

Fourteen years on from its final variation, Cable Supported Bridges: notion and layout, 3rd version, has been considerably up-to-date with new fabric and fresh imagery all through. because the visual appeal of the second one variation, the focal point at the dynamic reaction of cable supported bridges has elevated, and this improvement is recognized with new chapters, masking bridge aerodynamics and different dynamic subject matters comparable to pedestrian-induced vibrations and bridge monitoring.

This ebook concentrates at the synthesis of cable supported bridges, suspension in addition to cable stayed, protecting either layout and development facets. The emphasis is at the conceptual layout part the place the most positive aspects of the bridge can be made up our minds. in response to comparative analyses with fairly easy mathematical expressions, the several structural kinds are quantified and initial optimization proven. this offers a primary estimate on dimensions of the most load wearing components to offer in an preliminary enter for mathematical laptop versions utilized in the particular layout phase.

Key features:

Describes evolution and traits in the layout and development of cable supported bridges
Describes the reaction of buildings to dynamic activities that experience attracted becoming cognizance in fresh years
Highlights positive factors of the several structural elements and their interplay within the whole structural system
Presents basic mathematical expressions to offer a primary estimate on dimensions of the weight wearing parts for use in an preliminary desktop input
This entire insurance of the layout and development of cable supported bridges presents a useful, attempted and confirmed source for teachers and engineers.

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Additional info for Cable Supported Bridges: Concept and Design (3rd Edition)

Sample text

In several of its design features this bridge resembled the Leverkusen Bridge and other German bridges with a central cable plane and a deep, but relatively narrow, box girder under the wide orthotropic bridge floor. The cable system was of the fan type with only two sets of stays radiating from each pylon top. 45 Knie Bridge across the Rhine at D€ usseldorf (Germany) was composed of several helical bridge strands of galvanized wires. As a novelty each strand was covered with a hot extruded polyethylene coating with a minimum cover of 5 mm.

This temporary system was made as a cable stayed system very similar to the one adopted in the Str€ omsund Bridge. And so the Duisburg–Ruhrort Bridge was born with a pure cable stayed system, but this was subsequently replaced by the rein chord system after completion of the deck erection. Afterwards, it seemed obviously irrational first to build a bridge with a completely sensible cable stayed system and then replace it by a less efficient and more complicated cable system such as the rein chord system.

For this reason the structural system of the cable stayed portion was regarded as a plane system, was statically indeterminate to the ninth degree and, as the system was completely asymmetrical, the advantages of splitting into symmetrical and antisymmetrical loading could not be utilized. The task of analyzing the bridge in the final stage, as well as during erection, was therefore of considerable magnitude at the time it had to be performed. Although it was one of the very first cable stayed bridges, the Severins Bridge still stands as a most successful bridge of this type.

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