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Structural Monitoring and Maintenance
  Volume 5, Number 1, March 2018, pages 39-50
DOI: http://dx.doi.org/10.12989/smm.2018.5.1.039
 


The compression-shear properties of small-size seismic isolation rubber bearings for bridges
Yi-feng Wu, Hao Wang, Ben Sha, Rui-jun Zhang and Ai-qun Li

 
Abstract
    Taking three types of bridge bearings with diameter being 100 mm as examples, the theoretical analysis, the experimental research as well as the numerical simulation of these bearings is conducted. Since the normal compression and shear machines cannot be applied to the small-size bearings, an improved equipment to test the properties of these bearings is proposed and fabricated. Besides, the simulation of the bearings is conducted based on the explicit finite element software ANSYS/LS-DYNA, and some parameters of the bearings are modified in the finite element model to reduce the computation cost effectively. Results show that all the research methods are capable of revealing the fundamental properties of the small-size bearings, and a combined use of these methods can better catch both the integral properties and the inner detailed mechanical behaviors of the bearings.
 
Key Words
    small-size; compression-shear; ANSYS/LS-DYNA; explicit algorithm; contact analysis
 
Address
Yi-feng Wu: School of Civil and Transportation Engineering, Beijing University of Civil Engineering and Architecture,
Beijing, 100044, China;
School of Civil Engineering, Southeast University, Nanjing, 210096, China
Hao Wang, Ben Sha and Rui-jun Zhang: School of Civil Engineering, Southeast University, Nanjing, 210096, China
Ai-qun Li: Beijing Advanced Innovation Center for Future Urban Design, Beijing University of Civil Engineering and Architecture, Beijing, 100044, China
 

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