KRITERIA PENILAIAN MODEL AERODINAMIK JEMBATAN KABEL DALAM PENGUJIAN TEROWONGAN ANGIN (RATING CRITERIA OF AERODYNAMIC MODEL OF CABLE BRIDGES IN THE WIND TUNNEL TEST)

Main Authors: Tristanto, Lanneke, Hardono, Setyo, Sukmara, Gatot
Format: Article info application/pdf Journal
Bahasa: ind
Terbitan: Pusat Penelitian dan Pengembangan Jalan dan Jembatan , 2018
Online Access: http://jurnal.pusjatan.pu.go.id/index.php/jurnaljalanjembatan/article/view/55
http://jurnal.pusjatan.pu.go.id/index.php/jurnaljalanjembatan/article/view/55/7
ctrlnum article-55
fullrecord <?xml version="1.0"?> <dc schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd"><title lang="en-US">KRITERIA PENILAIAN MODEL AERODINAMIK JEMBATAN KABEL DALAM PENGUJIAN TEROWONGAN ANGIN (RATING CRITERIA OF AERODYNAMIC MODEL OF CABLE BRIDGES IN THE WIND TUNNEL TEST)</title><creator>Tristanto, Lanneke</creator><creator>Hardono, Setyo</creator><creator>Sukmara, Gatot</creator><description lang="en-US">ABSTRAKGaya angin pada lantai jembatan kabel gantung dan beruji dipengaruhi oleh kecepatan dan sudut serang angin, perbandingan dimensi, bentuk dan ukuran penampang melintang serta gerakan lantai. Pengaruh tersebut direproduksi dalam terowongan angin dengan membuat model lantai jembatan. Model untuk pengujian aerodinamik jembatan kabel dipersiapkan dengan penskalaan prototipe jembatan aktual. Kesesuaian aerodinamik antara model dan prototipe jembatan kabel harus dirancang agar model mewakili karakteristik struktural prototipe. Pengujian terowongan angin menghasilkan beberapa informasi penting seperti kecepatan dan sudut serang angin kritis yang merupakan batas keamanan untuk stabilitas aerodinamik prototipe, pengurangan atau peningkatan osilasi dan perkiraaan amplitude maksimum. Makalah ini membahas perancangan model secara teoritis-eksperimental dalam menetapkan persyaratan penskalaan model, dan kriteria penilaian obyektif untuk evaluasi hasil pengujian terowongan angin dengan solusi praktis aplikatif. Jembatan beruji kabel Palibaja Sukabumi yang fleksibel dalam arah lateral dengan nilai perbandingan bentang lebar sebesar 54 ternyata tahan terhadap angin flutter berdasarkan rasio frekuensi torsi/lentur sebesar dua berdasarkan hasil uji getaran.&#xA0; Hasil uji aerodinamik model lantai jembatan Palibaja mengungkap kemungkinan terjadinya gaya angkat dalam arah gaya berat jembatan, dengan solusi perforasi lantai. Kata kunci: model aerodinamik, penskalaan model, pengujian terowongan angin, kecepatan dan sudut serang angin, stabilitas aerodinamik, uji getaran jembatan, kriteria penilaian. &#xA0;ABSTRACT The wind forces on the deck of suspended and stayed cable bridges are influenced by the critical wind velocity and attack angle, ratio of dimensions, shape and size of the cross section, and deck motion. These effects are reproduced in a wind tunnel, by constructing a deck model. The model for aerodynamic testing of cable bridgesis prepared by scaling of the actual bridge prototype. Aerodynamic similarity between model and prototype of a cable bridge has to be designed, thus the model represents the structural characteristics of the prototype. The wind tunnel test reveals some important information such asthe critical wind speed and attack angle as safety limit for aerodynamic stability of the prototype, decrement or increment of oscilation and the estimated maximum amplitude. This paper discusses theoretical experimental design methods in establishing model scaling requirements and anobyective rating criteria for evaluating wind tunnel test results with practical applicative solutions. The cable stayed bridge Palibaja Sukabumi which is flexible in lateral direction due to span width ratio of 54, is verified flutter resistant by the torsional flexural frequency ratio of two based on bridge vibration test results. The Palibaja aerodynamic deck model test reveals a possible uplift in bridge gravity direction, with deck perforation solution. Keywords: aerodynamic model, model scaling, wind tunnel test, wind velocity and attack angle, aerodynamic stability, bridge vibration test, rating criteria</description><publisher lang="id-ID">Pusat Penelitian dan Pengembangan Jalan dan Jembatan</publisher><contributor lang="en-US"/><date>2018-03-02</date><type>Journal:Article</type><type>Other:info:eu-repo/semantics/publishedVersion</type><type>Other:</type><type>File:application/pdf</type><identifier>http://jurnal.pusjatan.pu.go.id/index.php/jurnaljalanjembatan/article/view/55</identifier><source lang="en-US">Jurnal Jalan Jembatan; Vol 33, No 2 (2016); 65-79</source><source lang="id-ID">Jurnal Jalan-Jembatan; Vol 33, No 2 (2016); 65-79</source><source>2527 - 8681</source><source>1907 - 0284</source><language>ind</language><relation>http://jurnal.pusjatan.pu.go.id/index.php/jurnaljalanjembatan/article/view/55/7</relation><rights lang="id-ID">##submission.copyrightStatement##</rights><recordID>article-55</recordID></dc>
language ind
format Journal:Article
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Other:info:eu-repo/semantics/publishedVersion
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Other:
File:application/pdf
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author Tristanto, Lanneke
Hardono, Setyo
Sukmara, Gatot
title KRITERIA PENILAIAN MODEL AERODINAMIK JEMBATAN KABEL DALAM PENGUJIAN TEROWONGAN ANGIN (RATING CRITERIA OF AERODYNAMIC MODEL OF CABLE BRIDGES IN THE WIND TUNNEL TEST)
publisher Pusat Penelitian dan Pengembangan Jalan dan Jembatan
publishDate 2018
url http://jurnal.pusjatan.pu.go.id/index.php/jurnaljalanjembatan/article/view/55
http://jurnal.pusjatan.pu.go.id/index.php/jurnaljalanjembatan/article/view/55/7
contents ABSTRAKGaya angin pada lantai jembatan kabel gantung dan beruji dipengaruhi oleh kecepatan dan sudut serang angin, perbandingan dimensi, bentuk dan ukuran penampang melintang serta gerakan lantai. Pengaruh tersebut direproduksi dalam terowongan angin dengan membuat model lantai jembatan. Model untuk pengujian aerodinamik jembatan kabel dipersiapkan dengan penskalaan prototipe jembatan aktual. Kesesuaian aerodinamik antara model dan prototipe jembatan kabel harus dirancang agar model mewakili karakteristik struktural prototipe. Pengujian terowongan angin menghasilkan beberapa informasi penting seperti kecepatan dan sudut serang angin kritis yang merupakan batas keamanan untuk stabilitas aerodinamik prototipe, pengurangan atau peningkatan osilasi dan perkiraaan amplitude maksimum. Makalah ini membahas perancangan model secara teoritis-eksperimental dalam menetapkan persyaratan penskalaan model, dan kriteria penilaian obyektif untuk evaluasi hasil pengujian terowongan angin dengan solusi praktis aplikatif. Jembatan beruji kabel Palibaja Sukabumi yang fleksibel dalam arah lateral dengan nilai perbandingan bentang lebar sebesar 54 ternyata tahan terhadap angin flutter berdasarkan rasio frekuensi torsi/lentur sebesar dua berdasarkan hasil uji getaran. Hasil uji aerodinamik model lantai jembatan Palibaja mengungkap kemungkinan terjadinya gaya angkat dalam arah gaya berat jembatan, dengan solusi perforasi lantai. Kata kunci: model aerodinamik, penskalaan model, pengujian terowongan angin, kecepatan dan sudut serang angin, stabilitas aerodinamik, uji getaran jembatan, kriteria penilaian. ABSTRACT The wind forces on the deck of suspended and stayed cable bridges are influenced by the critical wind velocity and attack angle, ratio of dimensions, shape and size of the cross section, and deck motion. These effects are reproduced in a wind tunnel, by constructing a deck model. The model for aerodynamic testing of cable bridgesis prepared by scaling of the actual bridge prototype. Aerodynamic similarity between model and prototype of a cable bridge has to be designed, thus the model represents the structural characteristics of the prototype. The wind tunnel test reveals some important information such asthe critical wind speed and attack angle as safety limit for aerodynamic stability of the prototype, decrement or increment of oscilation and the estimated maximum amplitude. This paper discusses theoretical experimental design methods in establishing model scaling requirements and anobyective rating criteria for evaluating wind tunnel test results with practical applicative solutions. The cable stayed bridge Palibaja Sukabumi which is flexible in lateral direction due to span width ratio of 54, is verified flutter resistant by the torsional flexural frequency ratio of two based on bridge vibration test results. The Palibaja aerodynamic deck model test reveals a possible uplift in bridge gravity direction, with deck perforation solution. Keywords: aerodynamic model, model scaling, wind tunnel test, wind velocity and attack angle, aerodynamic stability, bridge vibration test, rating criteria
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institution Kementerian Pekerjaan Umum dan Perumahan Rakyat
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library Perpustakaan Puslitbang Jalan dan Jembatan
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subject_area Civil Engineering/Teknik Sipil
Road Engineering/Teknik Jalan Raya
Bridges Engineering/Teknik Jembatan
city BANDUNG
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