Analytical Method of the Shear Lag Effect in Thin-Walled Box Girders Based on the Shear Flow Distribution Law
Round 1
Reviewer 1 Report
Comments and Suggestions for AuthorsThe theoretical part shoul be condensed and improved.
Is there any comaprison with experiments.
Limiting cases needs to be studied.
Figures are in not good shape.
Author Response
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Author Response File: 
Author Response.pdf
Reviewer 2 Report
Comments and Suggestions for AuthorsThe paper presents an analytical method to investigate the shear lag effect of thin-walled single- and double-cell box girders. The paper is interesting but some issues should be addressed:
- State of the art should be improved, considering that few information is reported about the behaviour of thin walled box girder and the effects about this kind of girder (e.g., torsion)
- Figures are of bad quality. Please improve them
- The discussion in Section 2 seems to be not fully generalizable. I suggest to refine the description, to improve generalization
- Eq 16 makes sense if all displacements are available. The question is: are there some hypotheses to reduce available degree of freedom, i.e., displacements?
- Fig 12 and 13 are not visible, as the analogous for the other case study
- Among case studies I would like to see also a fixed beam as can occurs in some bridges where robustness is required
- Altough the advantage of a closed form solution is evident, could this approach replace the FEM solution or not? Some comments should be added to improve the merit of the work.
Author Response
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Author Response File: Author Response.pdf
Reviewer 3 Report
Comments and Suggestions for Authors
1. This paper introduces an analytical method for calculating the shear lag effect in thin-walled box girders based on the shear flow distribution law. The paper provides useful information and the results are satisfactory.
2. The paper is generally written well. Some improvements, though, are needed to meet the publication stardard, as mentioned below.
3. The quality of all the figures is very poor. It is recommended to redraw all the figures.
4. The expression of Tables 1 and 2 is not clear; the magnitude is q or q*Q/I? The values in the table is S or q or q*Q/I?
5. Fig. 6, the title does not match the figure content.
6. Mark the dimensions in Fig. 11. What's the mesh size?
7. Line 520, what is "This method" referred to?
Comments on the Quality of English LanguageMinor improvements are needed.
Author Response
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Author Response File: Author Response.pdf
Reviewer 4 Report
Comments and Suggestions for AuthorsThe authors propose an analytical method based on the shear flow distribution law to study the shear lag effect of thin-walled single- and double-cell box girders.The reliability of the method is estimated by comparing the results obtained employing the proposed method with numerical results supplied by ANSYS software. The paper is of average originality since the authors use a series of novel improved longitudinal displacement functions mathematically expressed as cubic parabolas.
The few references are appropriate. Figs.12-23 are of poor quality and need to be improved.
In my opinion,the author should update the references to give an explanation of what their study findings reveal that'is unique or different from the recent analytical ones in literature.
Comments on the Quality of English LanguageThe language needs minor improvement.
Author Response
Please see the attachment.
Author Response File: Author Response.pdf
Round 2
Reviewer 4 Report
Comments and Suggestions for AuthorsThe paper has been sufficiently revised.
Comments on the Quality of English LanguageGood English
