Time-Varying Mechanical Analysis of Long-Span Spatial Steel Structures Integral Lifting in Construction Basing Building Information Model
Round 1
Reviewer 1 Report
In this paper, the authors propose a time-varying mechanical analysis of the synchronous and asynchronous integral lifting and a single and interlaced point’s asynchronous integral lifting analysis method of a long-span spatial steel structure. The effectiveness of the proposed methodology is demonstrated by simulating the synchronous and asynchronous integral lifting of the maintenance hangar roof of Chengdu Tianfu International Airport.
The theories in the paper included time-varying mechanical and displacement difference control theory. However, there are insufficient details about these in the paper. It is suggested that the authors make more clarifications on their distinct contributions in the manuscript, from both the theory and application aspects.
1. Sections 2.2: it is stated that “Kij is the constraint force generated at the additional constraint i under the action of node displacement Δj.” Kij should not be the force. Please check this.
2. Sections 3: there are too much content on the preparation for Lifting, which can be concise.
3. Sections 3 and 4: in the simulation of the maintenance hangar roof of Chengdu Tianfu International Airport, it should be compared with traditional methods to illustrate the advantages.
4. Sections 3 and 4: there should be more examples to illustrate how this method is modeled and applied.
5. Figure 13: two figures can provide a clearer explanation.
6. The article should include some mathematical deductions and formula explanations
Some editing of English language is required.
Author Response
Thanks for your helpful and constructive comments. We have made revisions following closely the comments. The quality of the manuscript has been improved. We have revised the manuscript and conducted a comprehensive review of the article. The point-to-point responses to the comments have been given in the attachment. If you have any questions, please contact us without any hesitation.
Please see the attachment.
Author Response File: 
Author Response.pdf
Reviewer 2 Report
Dear
This research is suitable for publication in its current state. The results can be replicated without any technical problems. Innovation is identified and that is very important.
Kind Regards
Author Response
Thank you very much for carefully reviewing our paper and recognizing it. We truly appreciate the time and effort you spent reviewing my paper and the valuable insights you have provided. If there is anything else I can do to improve the paper or if you have any further comments or suggestions, please do not hesitate to let me know. Look forward to hearing from you.
Reviewer 3 Report
1. Statement error, the 'assembled tire frame' in section 3.2 should be changed to 'assembled frame' in order to correspond to Figure 2.
2. “The mesh is 155MPa (less than 345MPa) "in the text below Figure 8. What standard is 345MPa based on?
3. The H in 'H is the height of the top of the row frame column' is not reflected in Figure 1.
4. Figure 12 Title expression error.
Minor editing of English language is required.
Author Response
We truly appreciate the time and effort you spent reviewing my paper and the valuable insights you have provided. Please refer to the attachment for our modifications and responses. We have polished the whole manuscript.
If there is anything else I can do to improve the paper or if you have any further comments or suggestions, please do not hesitate to let me know. Look forward to hearing from you.
Author Response File: Author Response.pdf
Round 2
Reviewer 1 Report
The paper is recommended to be accepted.
Only minor editing of English language is required.
