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Advanced Problems in Bridge Construction - download pdf or read online

By G. Creazza, M. Mele

ISBN-10: 3211823182

ISBN-13: 9783211823187

ISBN-10: 3709126142

ISBN-13: 9783709126141

This quantity bargains with the main glossy and topical difficulties of bridge layout. the themes provided enable to take on either theoretical-analytical in addition to technical-constructive points of the layout challenge, mentioning how in relation to bridges, in particular for lengthy span bridges, the 2 elements are totally inseparable. In sleek bridges, purposes of technical and financial feasibility oblige an severe parceling of the development method, with the ensuing have to revise, with appreciate to the previous, either layout thoughts in addition to the theoretical gear of research that governs it. All this may sincerely be derived from examining the current quantity, within which the several contributions rigidity theoretical and technical questions of specific curiosity and topicality, with no claiming to method them systematically, yet delivering transparent procedural principles and development symptoms. just about the theoretical procedure, a few of specific significance are reviewed, similar to the potential of utilizing restrict research, the simplification of the layout strategy for bridges, toughness, and desktop aided layout. For what matters the bridge typologies and the corresponding positive difficulties, the emphasis is generally at the ones nonetheless in an evolutionary part, that's lengthy span suspended/stayed bridges and cantilever outfitted bridges with prefabricated segments.

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Extra resources for Advanced Problems in Bridge Construction

Example text

IHE DESIGN PRil'CIPlE RR PREFAPRICATED SEJJ1ENIS Prestressing is An excellent llB'lllS of assenbly, thanks to the canpression exerted on the faces in contact with the prefabricated pieces ; but to achieve this tightening without any problans, the nutual contact must be perfect. · The solution to dris problan was thought up in the late fifties by Campenon-Bemard, for the construction of the Oloisy-le-Roi Bridge on the Seine River tnear Paris). 29 Cantilever built bridges This solution consh;ts of casting the nth seerent with its cootact face with (n-1) segm:mt cast directly m contact with the latter·, A perfect similarity of the cootiguous faces is therefore achieved!

EliTERNAL p~:m:; As explained above, the layout of prestressing tendons and anchorages damnds IIBil}! special precautions. -e:I. For all of these reasons, and tmder the leadership of French engineers, a real "external prestressing school" has been developed, with the construction of IIBily long span bridges. thoot any risk of cracks in the concrete behind the anchor plates. mte limit state, due to the tendon not being bonded to the concrete (for a detailed study of the rrechanical properties of girders fitted with external tendons, the reader can refer to the IIBilY articles pertaining to this subject).

2. 'IHE DESIGN PRil'CIPlE RR PREFAPRICATED SEJJ1ENIS Prestressing is An excellent llB'lllS of assenbly, thanks to the canpression exerted on the faces in contact with the prefabricated pieces ; but to achieve this tightening without any problans, the nutual contact must be perfect. · The solution to dris problan was thought up in the late fifties by Campenon-Bemard, for the construction of the Oloisy-le-Roi Bridge on the Seine River tnear Paris). 29 Cantilever built bridges This solution consh;ts of casting the nth seerent with its cootact face with (n-1) segm:mt cast directly m contact with the latter·, A perfect similarity of the cootiguous faces is therefore achieved!

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Advanced Problems in Bridge Construction by G. Creazza, M. Mele


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