Bearings are used in the construction of bridges, for the distribution of loads between different elements and for compensating stresses. This volume describes their construction, function, calculation and applications, and is supplemented by normative regulations and research results. The book takes account of EN 1337 standards, which are binding on a European level. It also takes into account the latest experiences gained in practice as well as on the basis of recent tests, and includes examples for the correct placing of bearings and dampers.
Table of Contents
Preface. Preliminary Remarks. INTRODUCTION. History. Terms and descriptions. Basic guidelines for selecting the support system. Bearing motion. Bearing symbols. Rotational resistance. STRUCTURE AND BEARING SYSTEM. Introduction. Bridges. STRUCTURE AND BEARING LOADS. From a hinge to a bearing. Bridge analysis. Influence of bearings on the stability of constructions. Bearings with high vertical flexibility. BEARING TYPES. Basic remarks. General design and dimensioning rules. Fixed bearings. Sliding bearings. Deformation bearings. STANDARDS. Preliminary remarks. Imprint from EN 1337 1: General design rules. Remarks on EN 1337 2: Sliding elements. Remarks on the draft of EN 1337 3: Elastomeric bearings. Remarks on the draft of EN 1337 5: Pot bearings. Remarks on EN 1337 7: Spherical and cylindrical PTFE bearings. Remarks on the draft of EN 1337 8: Guide bearings and restraint bearings. Remarks on the draft of EN 1337 10: Inspection and maintenance. Imprint of EN 1337 11: Transport, storage and installation. APPROVALS. German Approval of sliding bearings (example). German Approval of spherical bearings (two examples). Pot bearing: special conditions (in part) and appendices German Approval of a bearing for vibration control. SCIENCE AND RESEARCH. General. Research reports. Approval tests. GLOSSARY. LITERATURE. Literature, with brief comments. Cited literature. SUBJECT INDEX.
Helmut Eggert studied structural engineering in, gaining his doctorate under Professor Kloppel. Following several years working in different construction companies he joined the Institut fur Bautechnik in 1969. He was the department head responsible for metal engineering and bearings until he left the institute in July 2000.