scholarly journals Improved finite beam element method for analyzing the flexural natural vibration of thin-walled box girders

2017 ◽  
Vol 9 (8) ◽  
pp. 168781401772629 ◽  
Author(s):  
Lizhong Jiang ◽  
Zhipeng Lai ◽  
Wangbao Zhou
Keyword(s):  
Natural Vibration ◽  
Beam Element ◽  
Box Girders ◽  
Thin Walled ◽  
Element Method

scholarly journals Improved Finite Beam Element Method to Analyze the Natural Vibration of Steel-Concrete Composite Truss Beam

2017 ◽  
Vol 2017 ◽  
pp. 1-12 ◽  
Author(s):  
Zhipeng Lai ◽  
Lizhong Jiang ◽  
Wangbao Zhou ◽  
Xilin Chai
Keyword(s):  
Shear Deformation ◽  
Vibration Frequency ◽  
Natural Vibration ◽  
Mass Matrix ◽  
Beam Element ◽  
High Order ◽  
Continuous Treatment ◽  
Natural Vibration Frequency ◽  
Interface Slip ◽  
Element Method

Based on Hamilton’s principle, this study has developed a continuous treatment for the steel-concrete composite truss beam (SCCTB). It has also deduced the SCCTB element stiffness matrix and mass matrix, which include the effects of interface slip, shear deformation, moment of inertia, and many other influencing factors. A finite beam element method (FBEM) program for SCCTB’s natural vibration frequency has been developed and used to calculate the natural vibration frequencies of several SCCTBs with different spans and different degrees of shear connections. The FBEM’s calculation results of several SCCTBs agree well with the results obtained from ANSYS. Based on the results of this study, the following conclusions can be drawn. For the SCCTB with high-order natural vibration frequency and with short span, the effect of the shear deformation is greater. Hence, the effect of the shear deformation on the SCCTB’s high-order natural vibration frequency cannot be ignored. On the other hand, the effect of the interface slip on the SCCTB’s high-order natural vibration frequency is insignificant. However, the effect of the interface slip on the SCCTB’s low-order natural vibration frequency cannot be ignored.

Beam finite element for thin-walled box girders considering shear lag and shear deformation effects

2021 ◽  
Vol 233 ◽  
pp. 111867
Author(s):  
Xiayuan Li ◽  
Shui Wan ◽  
Yuanhai Zhang ◽  
Maoding Zhou ◽  
Yilung Mo
Keyword(s):  
Finite Element ◽  
Shear Deformation ◽  
Shear Lag ◽  
Box Girders ◽  
Thin Walled
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