Közúti hidász almanach 2005 (Lánchíd füzetek 2., 2006)
Anno 2005 - Szakirodalmi bibliográfia
HIDÁSZ ALMANACH 2005 Válogatott szakirodalmi bibliográfia now allow steels to be produced according to the desired mechanical and chemical properties. This new generation of steels offer higher performance not only in terms of strength but also toughness, weldability, cold formability and corrosion resistance, compared to the traditionally used mild steel grades. Information is given on the production process, the chemical and mechanical properties, the relevant design and fabrication standards and on recent research results. The document is an assembly of contributions from different countries, providing a state-of-the-art report on HPS. ( www.iabse.org 135. old.) Editor: Hans-Peter Günther, Germany, 152 pages, in English, 70 CHF. Acceptance of stay cable systems using prestressing -fib bulletin 30 A Nemzetközi betonszövetség (fib) 1999-ben tematikus szakmai közlöny sorozatot indított. Az alábbiakban megadjuk a kötet tömörítvény ét. This fib Recommendation gives technical guidelines regarding design, testing, acceptance, installation, qualification, inspection and maintenance of stay cable systems using prestressing steels (strands, wires or bars) as tensile elements, which can be applied internationally. This Recommendation is applicable for cable-stayed bridges and other suspended structures such as roofs. It may also be used for hangers in arch structures and as suspension cables, as appropriate. This Recommendations has been formulated by an international working group comprising more than 20 experts from administrative authorities, universities, laboratories, owners, structural designers, suppliers of prestressing steels and stay cable suppliers. The text has been written to cover best construction practices around the world, and to provide material specifications that are considered to be the most advanced available at the time of preparing this text. For ease of use (for client, designer and cable supplier), the complex content has been arranged thematically according to the system components into chapters focusing on performance characteristics, requirements and acceptance criteria. Requirements and comments have been specified for all parties involved in design and construction in order to aim for a uniform and high quality and durability. The interfaces to the structural designer are highlighted. The essential subjects are: Design and detailing of stay cables including saddles and damping devices; Durability requirements and corrosion protection systems; Requirements for the materials; Testing requirements for the stay cables; Installation, tolerances, qualification of companies and personnel; Inspection, maintenance and repair. This Recommendation does not cover the technology of stay cables whose tensile elements are ropes, locked-coil cables, etc. or which consist of composite materials. Nevertheless, in many cases the specified performance criteria may also be applicable to these systems, although numerical values given for the acceptance criteria may need to be adjusted. For these systems it has been difficult to provide multiple protective layers similar to those specified for stay cables made from prestressing steel and therefore, the quality of corrosion protection may not be equivalent. 38
