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All Journal REKA RACANA Widyariset Widyariset Jurnal Jalan Jembatan
Setyo Hardono
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Aerospace Engineering Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Immunology & microbiology Industrial & Manufacturing Engineering Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Neuroscience Physics

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Uji getar pada jembatan tol layang dengan beban lalu lintas aktual Setyo Hardono
Jurnal Jalan-Jembatan Vol 21 No 4 (2004)
Publisher : Direktorat Bina Teknik Jalan dan Jembatan

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Abstract

Tujuan utama penelitian ini adalah untuk mengukur getaran aktual dari suatu jembatan layang tol akibat beban eksitasi getaran dari lalu lintas aktual. Penglibt•an getaran dilakukan pada kondisi dimana tidak memungk-inkan untuk dilakukan penyetopan lain lintas. Posisi alat pendeteksi getaran (accelerometer) diletakkan pada bagian yang dipredeksi bergetar secara dominan. Pada pier head, akselerorneter ditempatkan pada ujung kantilever untuk merekam getaran arah vertical dan dipasang ditengah bentang untuk gelagar. Getaran yang terjadi direkam secara real time dan simultan. Data tersebut kemudian diolah untuk memperoleh, intensitas getar, frekuensi getar yang tereksitasi dan mode shape. Contoh hasil pengukuran getaran dan evaluasinya disajikan dalam tulisan ini. Hasil penelitian menunjukkan bahwa metoda yang dipakal dalam pengujian ini dapat digunakan untuk mengukur getaran jembatan layang tol dengan balk meskipun tanpa dilakukan penyetopan lain lintas.
KINERJA DINAMIK JEMBATAN RANGKA BAJA YANG MENERAPKAN LEAD RUBBER BEARING (LRB) N. Retno Setiati; Joko Purnomo; Setyo Hardono
Jurnal Jalan-Jembatan Vol 39 No 1 (2022)
Publisher : Direktorat Bina Teknik Jalan dan Jembatan

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The application of LRB technology on bridges in Indonesia is not as popular as in developed countries, even though Indonesia is one of the countries with the highest frequency of earthquake occurrences. LRB technology is more popular in its application to building structures. However, LRB technology has been widely applied to road and bridge infrastructure, especially on toll roads. Even Indonesia has been able to produce LRB with better quality and quantity compared to other countries. This study aims to determine the performance improvement of bridges using LRB in accommodating earthquake forces. This study examines the results of bridge monitoring by replacing the placement system in the form of bearing pads with LRB. Installation of LRB is carried out on a steel frame bridge with a length of 65 meters. This load test is carried out with 4 (four) methods of loading a 6 (six)-wheel truck load. Installation of 4 accelerometer sensors (two vertical bridge directions and two bridge transverse directions) installed in the middle of the span. In addition to the installation of the accelerometer, LVDT was installed in the longitudinal direction of the bridge. Based on the results of the analysis, it is found that the natural frequency value of the upper structure the bridge does not change (that is, 4.64 Hz). There was an increase in the performance of the bridge bearing system, especially the damping time from 7.36 seconds to 4.01 seconds with the same magnitude value. Keywords: steel truss bridge, LRB, cencor, frequency, damping.
Co-Authors Bernardinus Herbudiman Euneke Widyaningsih, Euneke Gatot Sukmara Joko Purnomo Lanneke Tristanto Lanneke Tristanto N. Retno Setiati Nazib Faizal Rulli Ranastra Irawan Rully Ranastra Widi Nugraha