详情

BBT F�rst�rkning av gamla samverkansbroar och f�rl�ngning av deras livsl�ngd

项目名称：	BBT F�rst�rkning av gamla samverkansbroar och f�rl�ngning av deras livsl�ngd
摘要：	Bridges are crucial for the infrastructure around the world. With thousands of old steel and composite bridges around Europe, there is need of rational methods for strengthening them. This not only to compensate for their aging, but also to allow higher loads in the future. Being able to strengthen and save older bridges also contribute to a reduced environmental impact, while traffic disruptions can be minimized through innovative strengthening techniques. The proposed project is to retrospectively create composite action between steel and concrete, by installing shear connectors from below the slab and connect the flange of a steel beams to an overlying concrete slab. The method can be used to create composite action in older bridges, or as reinforcement method where shear capacity no longer is sufficient, e.g. for higher traffic loads demands. To increase knowledge of this strengthening method an in-depth literature review will be performed, followed by tests on specimens in the lab and field measurements on an existing bridge reinforced with the studied technology. Both analytical and numerical models will be used and calibrated against the test results, to create a basis for the design recommendations. The results will spread through scientific articles, conference papers, reports, RFCS reports and through a doctoral thesis. The project is part of the European R&D project (RFCS1) ProLife (Prolonging Lifetime of Old Steel and Steel-concrete bridges). It is a collaboration between seven research partners from six different countries, and it is coordinated by Lule� University of Technology. In the projects researchers, bridge designers and material suppliers are represented. The industrial anchor creates a good basis for the project to have an impact and result in applications on bridges around Europe, and not just in Sweden. As a starting point for the project a workshop will be arranged, with European designers, researchers and infrastructure managers among the participants. Some of the participants in the workshop will be the international reference group that act as a sounding board for the research and contribute to spread knowledge both during the project and after the project finish.
资金：	0.00
资助组织：	Trafikverket, Sweden
项目负责人：	Collin, Peter
执行机构：	Lule� tekniska universitet
开始时间：	20160501
预计完成日期：	20181231
实际结束时间：	0