Light Rail Transit Authority(LRTA)

I am Alyannah Terite, a 5th BS Civil Engineering student at the University of the Philippines Diliman. I am currently conducting a thesis undergraduate study on the Analysis of Soil-Structure Interaction: Dynamic Response of LRT-1 Foundation due to Earthquake Loading. The general objective of the study is to analyze the effects of soil-structure interaction (SSI) due to earthquake loading and its application on the dynamic response of LRT-1 foundation. 

The documents that I need are of the bridge span between Bambang and Tayuman.

Supposedly, my study is focused on the LRT-2 foundations since the bridge span between Santolan and Katipunan lies on a soft soil and directly above the West Valley fault. However, my request for the documents was declined because of the state of renovation of the rectifier substations. Hence, I decided to change the scope of my analysis to LRT-1.

The specific objectives are:
1.	To utilize RS3 for the modeling and simulation of the behavior of LRT-1 foundation during an expected strong ground motion
2.	To develop a methodology for incorporating soil-structure interaction in the foundation structural analysis.
3.	To provide key parameter inputs for a possible structural retrofit of LRT-1 foundation members due to the effects of soil-structure interaction for expected strong ground motion

The study will be focused on the analysis of the seismic vulnerability of the bridge span between Tayuman and Bambang stations. My focus is on structures on soft soils since SSI is detrimental on these structures because it further aggravates the seismic response of the structure.

The study will be beneficial to the current design specifications since the incorporation of the soil-structure interaction in the design procedure will result in a realistic estimate of the dynamic response of the structure. It will also provide a modern computational framework for specific foundation structural analysis. Lastly, the  possible damage  or collapse of LRT-1 when subjected to strong ground motion will be avoided due to the structural retrofitting of the necessary members.

Rest assured that all these documents will remain confidential and will only be used for this research study. I hope that I’ll be able to receive these documents by the second week of February so I can already start the modelling and simulation since I have to finish the whole research study by May of the same year. Should you have any questions or updates, you may contact me at 0997 609 5272 or email me at [email protected].

I look forward to hearing from you and I thank you in advance for your time.

Jan 21, 2020

Dear Alyannah Terite,

Thank you for your request dated Jan 20, 2020 05:10:02 PM under Executive Order No. 2 (s. 2016) on Freedom of Information in the Executive Branch, for Geotechnical Investigation Report, Boring Data, Foundation Plan, Structural and Architectural Plan.

We received your request on Jan 20, 2020 05:10:02 PM and will respond on or before Feb 10, 2020 05:10:02 PM, in accordance with the Executive Order's implementing rules and regulations.

Should you have any questions regarding your request, kindly contact me using the reply function on the eFOI portal at http://www.foi.gov.ph/requests/aglzfmVmb2ktcGhyHgsSB0NvbnRlbnQiEUxSVEEtOTQ5NzU1OTg3NjkxDA, for request with ticket number #LRTA-949755987691.

Thank you.

Respectfully,

Faye Ganancial
FOI Officer

{0}

Dear {1},

Greetings!

Thank you for your request dated {2} under Executive Order No. 2 (s. 2016) on Freedom of Information in the Executive Branch.

Your request

You asked for {3}.

Response to your request

While our aim is to provide information whenever possible, in this instance this Office does not have the information you have requested. However, you may wish to contact Light Rail Manila Corporation at Pasay City or resubmit your request addressed to the correct agency on the eFOI portal.

For further assistance you may review the FAQ section of the eFOI site: {4}.

Your right to request a review

If you are unhappy with this response to your FOI request, you may ask us to carry out an internal review of the response by writing to Zhenele Faye Ganancial/[email protected]. Your review request should explain why you are dissatisfied with this response, and should be made within 15 calendar days from the date when you received this letter. We will complete the review and tell you the result within 30 calendar days from the date when we receive your review request.

If you are not satisfied with the result of the review, you then have the right to appeal to the Office of the President under Administrative Order No. 22 (s. 2011).

Thank you.

Respectfully,
{5}
FOI Officer