Buy article PDF
The purchased file will be sent to you
via email after the payment is completed.
US$ 35
|
Steel and Composite Structures Volume 36, Number 5, September10 2020 , pages 553-568 DOI: https://doi.org/10.12989/scs.2020.36.5.553 |
|
|
 open accessShear stiffness of headed studs on structural behaviors of steel-concrete composite girders |
||
Jun He, Zhaofei Lin, Yuqing Liu, Xiaoqing Xu, Haohui Xin and Sihao Wang
|
||
| Abstract | ||
| Steel-concrete composite structures have been extensively used in building, bridges, and other civil engineering infrastructure. Shear stud connectors between steel and concrete are essential in composite members to guarantee the effectiveness of their behavior in terms of strength and deformability. This study focuses on investigating the shear stiffness of headed studs embedded in several types of concrete with wide range of compressive strength, and their effects on the elastic behavior of steel-concrete composite girders were evaluated. Firstly, totally 206 monotonic push-out tests from the literature were reviewed to investigate the shear stiffness of headed studs embedded in various types of concrete (NC, HPC, UHPC etc.). Shear stiffness of studs is defined as the secant stiffness of the load-slip curve at 0.5Vu, and a formulation for predicting defined shear stiffness in elastic state was proposed, indicating that the stud diameter and the elastic modulus of steel and concrete are the main factors. And the shear stiffness predicted by the new formula agree well with test results for studs with a diameter ranging from 10 to 30 mm in the concrete with compressive strength ranging from 22.0 to 200.0MPa. Then, the effects of shear stiffness on the elastic behaviors of composite girders with different sizes and under different loading conditions were analyzed, the equations for calculating the stress and deformation of simply supported composite girders considering the influence of connection | ||
| Key Words | ||
| composite girder; headed studs; shear stiffness; elastic behaviors; push-out test | ||
| Address | ||
| Jun He: School of Civil Engineering, Changsha University of Science and Technology, Hunan, China; Institute for Infrastructure and Environment, Heriot-Watt University, Edinburgh, UK Zhaofei Lin: Country Garden, Guangdong, China Yuqing Liu:Department of Bridge Engineering, Tongji University, Shanghai, China Xiaoqing Xu: School of Civil Engineering, Chongqing University, Chongqing, China Haohui Xin: School of Human Settlements and Civil Engineering, Xi\'an Jiaotong University, Xi\'an, China Faculty of Geoscience and Engineering, Delft University of Technology, The Netherlands Sihao Wang: Department of Bridge Engineering, Tongji University, Shanghai, China | ||