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ITS » Master Theses » Teknik Struktur S2
Posted by aguss at 10/01/2007 16:08:23  •  17319 Views


KEANDALAN SISTEM STRUKTUR FRAME BETON BERTULANG 2 DIMENSI DENGAN TEORI PROBABILITAS

RELIABILITY SISTEM STRUCTURE of FRAME REINFORCED CONCRETE 2 DIMENSION WITH THEORY PROBABILITY

Author :
Nur Ahmad Husin 




ABSTRAK

Keandalan struktur merupakan tinjauan kemungkinan bertahannya suatu struktur terhadap beban-beban yang bekerja Keandalan menjadi sangat penting dikarenakan beban maupun tahanan struktur diliputi ketidakpastian. Adapun model tinjauan dalam tesis ini adalah frame beton bertulang dengan fimgsi gedung perkantoran 4 lantai dengan tinggi total 17 m dan terdiri dari 2 bentang dengan panjang 1 bentang 7 m. Model ini dibebani beban mati hidup dan gempa yang mana gempa yang dipakai adalah gempa Jakarta. Pada kesempatan ini penulis ingin mempelajari keandalan sistem struktur dengan memperhatikan mekanisme keruntuhan sistem yang diakibatkan beban mati hidup dan gempa. Untuk tujuan tersebut mekanisme keruntuhan model sistem struktur diuji dengan menggunakan Non linier pushover analisis dan selanjutnya dengan hasil pengujian tersebut mekanisme keruntuhan model dijadikan model sistem struktur yang ditandai dengan berkembangnya jumlah sendi plastis yang terbentuk. Setelah mekanisme keruntuhan model diperoleh dibuatlah perumusan Fungsi Kinerja elemen struktur baik terhadap momen dan geser untuk elemen balok maupun interaksi aksial momen dan geser untuk elemen kolom yang mencakup kondisi elemen tersebut Perhitungan indeks keandalan P dilakukan dengan metode advanced dengan proses iterasi. Hasil dari indeks keandalan elemen selanjunya diolah dalam perumusan sistera dengan batasan-batasan tertentu. Dari analisis system diperoleh kondisi awal Pf mendekati nol Pada saat Immediate Occupancy IO Pf sebesar 1811 x l0 -9 selanjutnya pada saat kondisi Life Safety LS Pf sistem diperoleh sebesar l2957x 10 -4 dan pada saat kondisi diambang keruntuhan CP Pf sistem sebesar 41979381x10 -4. Hasil ini merupakan langkah awat untuk mempelajari keandalan system fiame beton bertulang. Tujuan akhir dari studi ini nantinya untuk mengetahui besarnya asuransi untuk bangunan fiame beton bertulang yang mana perhitungan keandalannya seharusnya melibatkan bangunan atas dan bangunan bawah.


ABSTRACT

Structure reliability is possibility evaluation hold out a structure about laboring burdens. Reliability become of vital importance because of burden and also structure prisoner in a condition of uncertainty. As for model evaluate in this thesis is reinforced concrete frame with office fimction 4 floor highly total 17 m and consist of 2 unfolding with length 1 unfolding 7 m. This model encumbered by dead burden earthguake and life of is which earfhquake of Jakarta. At this opportunity writer wish to study structure system reliability by paying attention resulted by failure system mechanism is result dead burden earthquake and life. For the purpose failure mechanism model structure system tested by using Non linear pushover analyse and furthermore with result of examination model failure mechamsm made as structure system model marked by expanding is amount of hinge the formed. After model failure mechanism obtained to be made formulation of structure Performance Function element by momen and shear for the beam element and interaction aksial moment and shear for column element including the condition of element. Calculation of reliability index P with method of advanced with process of iterasi. Result frorn its element reliability index processed in formulation of system with certain boundaries. From system analysis obtained Pf the condition of early Pf come near zero on the condition of Immediate Occupancy I0 obtained Pf equal to 1811 x l0-9 the condition of Life Safety LS Pf system obtained equal to l2957x 10-4 and at the condition of at the float of failure CP Pf system equal to 41979381 x 10 -4. This result represent step early to study reliability of system reinforced concrete frame. Final purpose of this study later to know the level of insurance for the building of reinforced concrete frame of is which calculation of its reliability include top and down building.



Keywordsfailure mechanism
 
Subject:  Beton bertulang
Contributor
  1. Prof. Ir. Priyo Suprobo, MS, PhD
    Ir. Iman Wimbadi, MS
    Ir. Ibnu Pudji Rahardjo, MS
Date Create: 10/01/2007
Type: Text
Format: pdf, 106 pages
Language: Indonesian
Identifier: ITS-Master-31000005022700
Collection ID: 31000005022700
Call Number: 625.004 52 Hus


Source
Theses Civil Engineering, RTS 625.004 52 Hus k

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