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Vibration Analysis of Steel-Concrete Composite Box Beams considering Shear Lag and Slip
Joint Authors
Wangbao, Zhou
Lizhong, Jiang
Qin, Shiqiang
Shu-jin, Li
Source
Mathematical Problems in Engineering
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-03-25
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
In order to investigate dynamic characteristics of steel-concrete composite box beams, a longitudinal warping function of beam section considering self-balancing of axial forces is established.
On the basis of Hamilton principle, governing differential equations of vibration and displacement boundary conditions are deduced by taking into account coupled influencing of shear lag, interface slip, and shear deformation.
The proposed method shows an improvement over previous calculations.
The central difference method is applied to solve the differential equations to obtain dynamic responses of composite beams subjected to arbitrarily distributed loads.
The results from the proposed method are found to be in good agreement with those from ANSYS through numerical studies.
Its validity is thus verified and meaningful conclusions for engineering design can be drawn as follows.
There are obvious shear lag effects in the top concrete slab and bottom plate of steel beams under dynamic excitation.
This shear lag increases with the increasing degree of shear connections.
However, it has little impact on the period and deflection amplitude of vibration of composite box beams.
The amplitude of deflection and strains in concrete slab reduce as the degree of shear connections increases.
Nevertheless, the influence of shear connections on the period of vibration is not distinct.
American Psychological Association (APA)
Wangbao, Zhou& Shu-jin, Li& Lizhong, Jiang& Qin, Shiqiang. 2015. Vibration Analysis of Steel-Concrete Composite Box Beams considering Shear Lag and Slip. Mathematical Problems in Engineering،Vol. 2015, no. 2015, pp.1-8.
https://search.emarefa.net/detail/BIM-1074245
Modern Language Association (MLA)
Wangbao, Zhou…[et al.]. Vibration Analysis of Steel-Concrete Composite Box Beams considering Shear Lag and Slip. Mathematical Problems in Engineering No. 2015 (2015), pp.1-8.
https://search.emarefa.net/detail/BIM-1074245
American Medical Association (AMA)
Wangbao, Zhou& Shu-jin, Li& Lizhong, Jiang& Qin, Shiqiang. Vibration Analysis of Steel-Concrete Composite Box Beams considering Shear Lag and Slip. Mathematical Problems in Engineering. 2015. Vol. 2015, no. 2015, pp.1-8.
https://search.emarefa.net/detail/BIM-1074245
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1074245