Evaluasi Kondisi Jembatan Kuranji dengan Metode Horizontal To Vertical Spectral Ratio dan Pergerakan Partikel
DOI:
https://doi.org/10.25077/jfu.12.3.380-386.2023Keywords:
frekuensi, , HVSR, jembatan kuranji, pergerakan partikelAbstract
Evaluasi kondisi jembatan diperlukan untuk melihat keadaan jembatan sebagai tindakan pencegahan terjadi kerusakan yang lebih besar pada struktur jembatan. Jembatan Kuranji terbagi menjadi 2 bagian yaitu jembatan lama yang berusia 30 tahun dan jembatan baru yang berusia 9 tahun. Evaluasi dilakukan dengan menggunakan pengukuran mikrotremor. Pengukuran dilakukan di 12 titik dengan durasi perekaman 90 menit. Hasil pengukuran mikrotremor diolah menggunakan metode Horizontal to Vertical Spectral Ratio (HVSR) dan pergerakan partikel (particle motion) menggunakan Software Geopsy. Pada analisis kurva HVSR dihasilkan nilai frekuensi alamiah. Untuk menentukan kondisi jembatan ditentukan nilai rasio frekuensi alamiah yang didapatkan dari pengolahan nilai frekuensi alamiah. Nilai frekuensi alamiah jembatan lama didapatkan sebesar 3,420 Hz dan 2,031 Hz untuk jembatan baru. Nilai rasio frekuensi alamiah jembatan baru sebesar 1,144% dan jembatan lama sebesar 2,611% dan dinyatakan jembatan baru berada dalam keadaan baik secara struktur dan jembatan lama berada dalam keadaan karatan (cacat kecil) yang memerlukan perawatan secara rutin. Pada metode pergerakan partikel didapatkan ketidakselarasan pergerakan struktur atas dan bawah jembatan lama yang dikhawatirkan dapat menyebabkan kerusakan pada struktur jembatan.References
Bilson Darko, A., Molnar, S. and Sadrekarimi, A. (2020) ‘Blind comparison of non-invasive shear wave velocity profiling with invasive methods at bridge sites in Windsor, Ontario’, Soil Dynamics and Earthquake Engineering, 129(February 2019), p. 105906.
Citak, S.O., Ohori, M. and Nakamura, T. (2012) ‘Microtremor Measurements And Earthquake Response Analysis On Urado Bridge , Kochi , JAPAN’, 15 Wcee [Preprint].
Dal Moro, G., Weber, T.M. and Keller, L. (2018) ‘Gaussian-filtered Horizontal Motion (GHM) plots of non-synchronous ambient microtremors for the identification of flexural and torsional modes of a building’, Soil Dynamics and Earthquake Engineering, 112(March), pp. 243–255.
Fat-Helbary, R.E.S., El-Faragawy, K.O. and Hamed, A. (2019) ‘Application of HVSR technique in the site effects estimation at the south of Marsa Alam city, Egypt’, Journal of African Earth Sciences, 154(February), pp. 89–100.
Herak, M. (2008) ‘ModelHVSR-A Matlab® tool to model horizontal-to-vertical spectral ratio of ambient noise’, Computers and Geosciences, 34(11), pp. 1514–1526.
Lestari, S. (2018) Particle Motion Analysis Data Mikrotremor Untuk Menentukan Potensi Longsor ( Studi Kasus : Jalan Raya Trenggalek-Ponogoro Km 23 ). Insitut Teknologi Sepuluh November.
Maulidiya, S. and Rusli, R. (2017) ‘Penentuan Frekuensi Natural Dan Arah Pergerakan Gelombang (Studi Kasus: Jembatan Soekarno Hatta Kota Malang)’, Jurnal MIPA, 6(1), p. 1.
Pratama, A.W. (2016) ‘Analisis Respons Struktur Atas Jembatan Prestressed Kuranji Akibat Gempa Horizontal’, PCI Journal [Preprint].
Sitorus, N., Purwanto, S. and Utama, W. (2017) ‘Analisis Nilai Frekuensi Natural dan Amplifikasi Desa Olak Alen Blitar Menggunakan Metode Mikrotremor HVSR’, Jurnal Geosaintek, 3(2), p. 89.
Syaputra, O.D. et al. (2019) ‘Identifikasi Kelayakan Jembatan Batanghari Ii Kota Jambi Menggunakan Mikrotremor Dengan Metode Horizontal To Vertical Spectral Ratio (Hvsr)’, Komunikasi Fisika Indonesia, 16(1), p. 59.
Vaza, H., Irwan, R. R., Sukmara, G. dan Riza, A. C., 2017, Penentuan Nilai Kondisi & Tingkat Kenyamanan Jembatan Korelasi Terhadap Degradasi Frekuensi Alami, Pusat Litbag Jalan dan Jembatan, Jakarta.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2023 Jurnal Fisika Unand
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Please find the rights and licenses in JFU (Jurnal Fisika Unand).
1. License
The non-commercial use of the article will be governed by the Creative Commons Attribution license as currently displayed on Creative Commons Attribution-NonCommercial 4.0 International License.
2. Authors Warranties
The author warrants that the article is original, written by stated author(s), has not been published before, contains no unlawful statements, does not infringe the rights of others, is subject to copyright that is vested exclusively in the author and free of any third party rights, and that any necessary written permissions to quote from other sources have been obtained by the author(s).
3. User Rights
JFU's spirit is to disseminate articles published are as free as possible. Under the Creative Commons license, JFU permits users to copy, distribute, display, and perform the work for non-commercial purposes only. Users will also need to attribute authors and JFU on distributing works in the journal.
4. Rights of Authors
Authors retain the following rights:
- Copyright, and other proprietary rights relating to the article, such as patent rights,
- The right to use the substance of the article in future own works, including lectures and books,
- The right to reproduce the article for own purposes, provided the copies are not offered for sale,
- The right to self-archive the article.
5. Co-Authorship
If the article was jointly prepared by other authors, the signatory of this form warrants that he/she has been authorized by all co-authors to sign this agreement on their behalf, and agrees to inform his/her co-authors of the terms of this agreement.
6. Termination
This agreement can be terminated by the author or JFU upon two months notice where the other party has materially breached this agreement and failed to remedy such breach within a month of being given the terminating partys notice requesting such breach to be remedied. No breach or violation of this agreement will cause this agreement or any license granted in it to terminate automatically or affect the definition of JFU.
7. Royalties
This agreement entitles the author to no royalties or other fees. To such extent as legally permissible, the author waives his or her right to collect royalties relative to the article in respect of any use of the article by JFU or its sublicensee.
8. Miscellaneous
JFU will publish the article (or have it published) in the journal if the articles editorial process is successfully completed and JFU or its sublicensee has become obligated to have the article published. JFU may conform the article to a style of punctuation, spelling, capitalization, referencing and usage that it deems appropriate. The author acknowledges that the article may be published so that it will be publicly accessible and such access will be free of charge for the readers.
