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Messages - Jiajun

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1
Damage & Loss (PELICUN) / Re: Generation of Simulated Demands
« on: May 06, 2022, 04:29:02 AM »
Hi Adam,

I have used Google Colab before, you can share the notebook with me through this colab account:"jiajundu99@gmail.com“ or share a link with me here.

As for the environmental impact, I would really like to have this feature as soon as possible, so I would appreciate if any help you can give me.

Jiajun

2
Damage & Loss (PELICUN) / Re: Generation of Simulated Demands
« on: May 05, 2022, 04:12:06 PM »
Hello Adam,

As you said, I want to reproduce the method from Appendix G in pelicun, but I don't know how to do it. It would be useful for me if pelicun can handle the raw demand as the method from Appendix G directly. This shows how powerful and flexible the pelicun is. So can you tell me how to do this or give me some guidance？

1.Thank you so much for your detailed and patient response about this question, they solved my doubts.

2.Although I am not familiar with the development work you mentioned, I am very interested in it. My only regret is that I am currently a new PhD student and have limited time and energy. But I will continue to learn about it and try to do this work in my free time. If I make any progress, I would be happy to share my results with you.

Finally, thank you for your patience and professional response！

Jiajun

3
Damage & Loss (PELICUN) / Re: Generation of Simulated Demands
« on: May 04, 2022, 03:59:01 PM »
Hello Adam,

Thank you for your detailed response for my questions.

In fact, what I want to do is to generate samples by the method mentioned in Appendix G of the FEMA P58 Vol1, and then use these samples to perform the damage and loss analysis. You can refer to the attachment for the exact process. This matlab code is provided by FEMA P58 in Appendix G. For this procedure, I just need to input the EDPs，βm，βgm.

Other than that, I have two questions:
1. I notice that the input of the raw demand in the example file seems to  be much different from the background document of FEMAp58, especially the log_std (I compared the input demand data with the data provided in the "Table 1-37 Demand Vectors, Intensity 3, Conditioned on No Collapse" in the BD document). I wonder about the reason for this difference.
2.This question is not related to this topic. It represents a personal expectation of mine. The environmental impact is a major update to the FEMA 2nd documentation, and the corresponding database is provided. After reading some current literature, I found that this is also a concern for many researchers. I wonder if pelicun is considering adding this feature as well. I checked the source code, it doesn't seem to be available for pelicun now. Or if I want to use pelicun to calculate the loss of carbon/energy caused by the earthquake, do you have any good suggestions?

Jiajun

4
Damage & Loss (PELICUN) / Re: Generation of Simulated Demands
« on: May 02, 2022, 01:08:07 PM »
Hello Pooya,

Thanks for your suggestion which is very practical, and I will take it.

Best wishes,
Jiajun

5
Damage & Loss (PELICUN) / Generation of Simulated Demands
« on: May 01, 2022, 09:30:15 AM »
Hello Adam,

Thanks a lot for the updated version 3.1.b4 of Pelicun. After watching the video about your introduction to pelicun on youtube, I started to learn pelicun 3.0. I'm sure that pelicun will be of great help to my research work.

I have a few questions, and I would appreciate it if you could help me.

1.Generation of Simulated Demands: In FEMA P58, if we want to address the effects of modeling uncertainty and ground motion uncertainty on demand distribution, we use two factors βm and βgm(FEMA P58 vol 1 Appendix G). So can we consider the uncertainty of modeling and ground motion to do the generation of simulated demands in pelicun?

2.I learned Pelicun3.0 by the example you provided on the website of DesignSafe(PRJ-3411 | NHERI SimCenter - Pelicun Examples). The example was helpful for my initial understanding of pelicun 3.0, but clearly not enough for further study. Is it possible to get more examples or API references about pelicun3.0 (even if it is a beta version)? Pelicun is an outstanding module. And I can't wait to get good at using it.

Finally, happy Labor Day to you !

Thank you so much,
Jiajun
My email:jiajundu99@gmail.com
My edu email:jiajundu@tongji.edu.cn

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