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Gatot Yulianto
Departemen Fisika, Fakultas Sains Dan Matematika, Universitas Diponegoro
Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Transportation Other

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Journal : INDONESIAN JOURNAL OF APPLIED PHYSICS

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Vibration Vulnerability Identification in Kota Lama Semarang using Microtremor Method Dwi Purwantoro Sasongko; Gatot Yuliyanto; Zaenal Arifin
INDONESIAN JOURNAL OF APPLIED PHYSICS Vol 9, No 02 (2019): October
Publisher : Department of Physics, Sebelas Maret University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1191.536 KB) | DOI: 10.13057/ijap.v9i02.34592

Abstract

Kota Lama is one of the landmarks in Semarang Central Java that is located on young alluvial sediment. This area is prone to vibrations stemming from tectonic activities around Semarang. Therefore, measurements were carried out to identify this vibration vulnerability using the microtremor method. These were aimed at obtaining a spatial distribution of vibration vulnerability. There were 29 measurement points each separated by a sampling interval of 50 ms and a duration of 10 minutes.  Ground vibration amplification in this area was found to range from 0.74 to 4.9 with the highest being on the outskirts of Kota Lama. The predominant frequency was found to range from 0.02 to 1.1 Hz. These patterns of high predominant frequency and ground vibration amplification suggest that the central area of Kota Lama needs more attention. High ground shear strain that ranges from 0.02 to 0.86 means that possible event to occur in Kota Lama include landslide, soil compaction, and liquefaction, as is also evident with existing dynamic properties of repeated collapse effect and loading speed effect. Meanwhile, structure of vibration amplification against predominant frequency underneath Kota Lama revealed lateral subsurface discontinuity on its southwest side. It was also found that the contour of ground vibration amplification resembles the shape of Vifjhoek fort.
Co-Authors . Sahid . Zairion Abdur Rosyid Achmad Fahrudin Achmad Syaifuddin Zuhri Achmad Widodo Agung Cahyono Agung, Gede Panji Akhmad Fauzi Akrima Amalia Ario Damar Arshad, Mazlan Asronj Bakkit Simanjuntak Aswin Baskoro Rochaddi Booth, Hollie Bryan Brama Ramadhana Budi Setiadi Cahyo Priyo Sembodo Charles Parningotan Haratua Simanjuntak Dwi Purwantoro Sasongko Easteria, Grace Fauzan, Fatih Ahmad Fenti Listiyani Fery Kurniawan Firda, Hasdinar Fredinan Yulianda Gatot Yulianto Hades Mandela, Hades Hartono, Daniel HERMAWAN Hotlan Simbolon Husein, Muhammad Saddam Indah, Mega Natasha Irham Nurwidyanto Irma Akhrianti Johan Maulana Hadi Kurniawati, Dwi Shinta Luky Adrianto M. Nurdin W. P. Majariana Krisanti Mardyani, Yeyen Maria Wahyuni Mars Widodo Masud, Rizka Maulidiyah Mazlan, Mazlan Mennofatria Boer Mohammad Mukhlis Kamal Muhammad Yusuf Muhammad Zainuri Muslim, Yus Sudarsono Naufalzuhdi, Achyar Nindita Eka Setyahandani, Nindita Eka purnama, Fajar adi Putra, Aditya Handoyo R. Sapto Hendri Boedi Soesatyo Rachmawani, Dori Rahmat Kurnia Rakhmat Syaefullah Riza Eka Prabowo Rizal Fahmi Rohmah, Lailia Nur Rr. Tony Yulianto Sadelie, Agus Sahid Sahid Saiful Nurul Hudha sapanli, kastana Setyawati, Novitria Sidhi Saputra Siti Khasanah Siti Zulaikhah Sri Wahyuningrum Stefanie Virlanta Putri Stelina Candita Gunawan Sin Sin Tan Sugeng Santoso Sugeng Widada Sugeng Widada Suparyana, Suparyana Suryono Suryono Taufiq Yuana Teguh Suroso Tridoyo Kusumastanto Udi Harmoko Udi Harmoko Vithya Arintalofa Wafi, Hanif Yohanes Yuli Mulyanto Yonvitner - Yudha, Firsta Kusuma Yusuf D. H. Yusuf D.H Yusuf Dewantoro Herlambang Zaenal Arifin Zulhamsyah Imran