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Structural bearings and expansion joints for bridges

 Structural bearings and expansion joints for bridges
Author(s):
International Association for Bridge and Structural Engineering (IABSE), Zurich, Switzerland, 2002, pp. 89, (No. 6)
ISBN-13: 978-385748-105-5 ISBN-10: 3-85748-105-6 DOI: 10.2749/sed006
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Bridge superstructures have to be designed to permit thermal and live load strains to occur without unintended restraints. Bridge bearings have to transfer forces from the superstructure to the sub...
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Bibliographic Details

Author(s):
Medium: book
Language(s): English
ISBN-10: 3-85748-105-6
ISBN-13: 978-385748-105-5
Publisher: International Association for Bridge and Structural Engineering (IABSE)
Published in: Zurich, Switzerland
Page(s): 89 Total no. of pages: 96
Page(s): 89
Total no. of pages: 96
Year: 2002
DOI: 10.2749/sed006
Series: (No. 6)
Cover: soft-cover (paper binding)
Notes:

Bridge superstructures have to be designed to permit thermal and live load strains to occur without unintended restraints. Bridge bearings have to transfer forces from the superstructure to the substructure, allowing all movements in directions defined by the designer. The two functions -transfer the loads and allow movements only in the required directions for a long service time with little maintenance - are not so easy to fulfil. Differ­ent bearings for different purposes and requirements have been developed so, that the bridge designer can choose the most suitable bearing.

By the movement of a bridge, gaps are necessary between superstructure and substructure. Expansion joints fill the gaps, allowing traffic loads tobe carried and allowing all expected displacements with low resistance. Ex­pansion joints should provide a smooth transition, avoid noise emission as far as possible and withstand all mechanical actions and chemical attacks (de-icing) for a long time. A simple exchange of all wearing parts and of the entire expansion joint should be possible.

The present volume provides a comprehensive survey of arrangement, construction and installation of bearings and expansion joints for bridges including calculation of bearing reactions and movements, analysis and design, inspection and maintenance. A long list of references deals with the subjects but also with aspects in the vicinity of bearings and expansion joints.

This book is aimed at both students and practising engineers, working in the field of bridge design, construction, analysis, inspection, maintenance and repair.

Keywords:
structural bearings bridge bearing expansion joints
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