Model Test and Mechanical Behavior Analysis of Steel-concrete Joint of Hybrid Girder
Jiang Xianglin, Liu Yuqing and Sun Xuan
DOI:10.11835/j.issn.1674-4764.2014.06.008
Received May 25, 2014,Revised , Accepted , Available online July 01, 2015
Volume ,2014,Pages 48-53
- Abstract
To study the bearing behavior, failure mode and mechanical behavior of different structural forms of steel-concrete joint of hybrid girder, based on the hybrid girder of Jiujiang Yangtze River Highway Bridge with 818-metre main 8pan, select a pressure-resistant shear-transferred steel-concrete joint, redesign a shear-transferred only joint for contrast, carry out two scale 1:2 model specimens bearing behavior experiment, measure the strain and relative slip of steel and concrete. The results show that:the bearing capacity of the pressure-resistant shear-transferred specimen is twice than the other；the bearing plate carries about 62.5% of the axial load, the force transmission of the bearing plate reduces the steel stress、steel-concrete relative slip and the force transmission ratio of connectors, makes the load transferred more effectively.