21... · 4.6.2 tinggi gelagar jembatan ... keseimbangan gaya dalam poligon segitiga. ... kabel...

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LAMPIRANSURAT EDARAN MENTERI PEKERJAANUMUM DAN PERUMAHAN RAKYATNOMOR : 08/SE/M/2015TENTANGPEDOMAN PERENCANAAN TEKNISJEMBATAN BERUJI KABEL

PEDOMANBahan Konstruksi Bangunan dan Rekayasa Sipil

Perencanaan teknis jembatan beruji kabel

KEMENTERIAN PEKERJAAN UMUMDAN PERUMAHAN RAKYAT

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Daftar isi

Daftar isi ................................................................................................................................. iPrakata ................................................................................................................................. ivPendahuluan ......................................................................................................................... v1 Ruang lingkup .................................................................................................................. 12 Istilah dan definisi ............................................................................................................. 13 Jembatan beruji kabel ...................................................................................................... 43.1 Pendahuluan................................................................................................................. 43.2 Keadaan batas jembatan beruji kabel ........................................................................... 44 Persyaratan umum perencanaan...................................................................................... 64.1 Lokasi jembatan............................................................................................................ 64.2 Elevasi dan ruang bebas............................................................................................... 74.3 Konfigurasi bentangan jembatan................................................................................... 74.4 Konfigurasi ruji kabel..................................................................................................... 74.4.1 Konfigurasi ruji kabel arah melintang......................................................................... 74.4.2 Konfigurasi ruji kabel arah memanjang...................................................................... 84.4.3 Jarak ruji kabel dalam arah memanjang .................................................................... 94.5 Pengangkuran pada menara dan dek jembatan............................................................ 94.6 Sistem lantai (bridge deck).......................................................................................... 124.6.1 Bentuk ..................................................................................................................... 124.6.2 Tinggi gelagar jembatan .......................................................................................... 154.6.3 Berat dek jembatan ................................................................................................. 164.6.4 Bentuk dek jembatan dan stabilitas aerodinamik ..................................................... 164.7 Menara ....................................................................................................................... 174.7.1 Bentuk menara ........................................................................................................ 174.8 Ruji kabel .................................................................................................................... 184.8.1 Jenis ruji kabel......................................................................................................... 184.8.2 Angkur kabel ........................................................................................................... 194.8.3 Proteksi kabel.......................................................................................................... 214.9 Fondasi jembatan ....................................................................................................... 214.10 Tipe hubungan jembatan beruji kabel ......................................................................... 214.11 Elemen pelengkap jembatan beruji kabel.................................................................... 225 Persyaratan khusus jembatan beruji kabel ..................................................................... 245.1 Persyaratan kekakuan ................................................................................................ 245.2 Persyaratan penarikan kabel....................................................................................... 24

5.3 Tekuk/Buckling pada menara dan P- Effect ............................................................. 255.4 Metode pelaksanaan dan beban pelaksanaan ............................................................ 255.5 Durabilitas struktur ...................................................................................................... 255.6 Kelelahan bahan ......................................................................................................... 255.7 Persyaratan pemeriksaan minimum............................................................................ 25

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6 Survei dan investigasi..................................................................................................... 267 Aksi atau pembebanan................................................................................................... 267.1 Gaya putus/rupture statis pada ruji kabel .................................................................... 277.2 Pemeliharaan kondisi ruji kabel................................................................................... 277.3 Gaya putus/rupture dinamik ruji kabel ......................................................................... 27

7.4 Kombinasi pembebanan ............................................................................................. 287.4.1 Kombinasi pada keadaan batas daya layan (KBL) .................................................. 287.4.2 Kombinasi pada keadaan batas daya ultimit............................................................ 30Kombinasi beban ultimit yang umum digunakan adalah sebagaimana disajikan padaTabel 7berikut: 308 Ketahanan terhadap gempa ........................................................................................... 309 Kestabilan terhadap beban angin dinamik ...................................................................... 319.1 Fenomena aerodinamik .............................................................................................. 319.2 Persyaratan perencanaan kestabilan terhadap angin dinamik .................................... 329.3 Kecepatan angin dasar, kecepatan angin rencana, dan kecepatan angin pemeriksaan

329.4 Pendekatan stabilitas aerodinamik.............................................................................. 339.5 Pengujian di terowongan angin ................................................................................... 339.6 Redaman struktur (logaritmic decreament) ................................................................. 349.7 Stabilitas ruji kabel ...................................................................................................... 3410 Urutan perencanaan....................................................................................................... 3610.1 Permodelan dan tahapan analisis ............................................................................... 3610.2 Analisis 2-D................................................................................................................. 3710.3 Analisis 3-D................................................................................................................. 3810.4 Analisis tahapan pelaksanaan..................................................................................... 3811 Pra rencana jembatan beruji kabel ................................................................................. 3911.1 Pra dimensi kabel ....................................................................................................... 3911.1.1 Tipe kipas................................................................................................................ 3911.1.2 Tipe harpa ............................................................................................................... 4111.2 Pra rencana dimensi menara ...................................................................................... 4211.2.1 Tipe kipas/fan .......................................................................................................... 4211.2.2 Tipe harpa ............................................................................................................... 4312 Pendekatan desain dinamis............................................................................................ 4412.1 Metode pendekatan untuk menghitung frekuensi alamiah........................................... 4412.2 Rumus eksperimental frekuensi alamiah struktur berdasarkan nilai lendutan statikakibat berat sendiri .............................................................................................................. 4612.3 Rumus eksperimental frekuensi alamiah struktur jembatan beruji kabel...................... 47Lampiran A(informatif).......................................................................................................................... 48A.1. Contoh kasus: Pra dimensi ruji kabel............................................................................ 48A.2. Contoh kasus: Gaya aktual awal dan gaya akhir pada jembatan beruji kabel .............. 49

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A.3. Contoh kasus : Frekuensi alamiah dasar jembatan beruji kabel ................................... 50A.4. Contoh kasus : Kerentanan jembatan terhadap angin dinamik ..................................... 51Bibliografi....................................