ANALISA PERBANDINGAN STRUKTUR BAJA 3 LANTAI MENGGUNAKAN SYSTEM CBF DAN EBF  DENGAN METODE PUSH OVER ANALYSIS

Indonesia merupakan termasuk negara yang berada di ring of fire dan di beberapa batas lempeng tektonik, sehingga tingkat risiko terjadinya gempa bumi sangatlah tinggi.Analisa struktur yang digunakan yaitu perbandingan sistem concentrically braced frames (CBF) dan eccentrically braced frames (EBF) berdasarkan pada peraturan struktur tahan gempa. Hasil analisis menunjukkan Daktilitas struktur dengan sistem CBF lebih kecil daripada sistem EBF. Struktur dengan sistem CBF lebih kaku dan kokoh dibandingkan dengan sistem EBF. Daktilitas yang bagus adalah yang bernilai lebih dari 1, sehingga struktur tidak mudah runtuh. Pada kondisi linier, sistem CBF memiliki perilaku atau kinerja yang lebih baik ditunjukkan dengan penggunaan material, displacement maksimum dan drift ratio yang lebih kecil. Pada kondisi nonlinier, sistem ini (EBF) memiliki perilaku maupun kinerja yang lebih baik terbukti dengan penyerapan energi dan daktilitas yang lebih baik.

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Steel structures damage from the Christchurch earthquake series of 2010 and 2011

Bulletin of the New Zealand Society for Earthquake Engineering ◽

10.5459/bnzsee.44.4.297-318 ◽

2011 ◽

Vol 44 (4) ◽

pp. 297-318 ◽

Cited By ~ 34

Author(s):

Charles Clifton ◽

Michel Bruneau ◽

Greg MacRae ◽

Roberto Leon ◽

Alistair Fussell

Keyword(s):

Steel Structures ◽

Braced Frames ◽

Concentrically Braced Frames ◽

Eccentrically Braced Frames ◽

Satisfactory Performance ◽

Concentrically Braced ◽

Earthquake Series ◽

Moment Resisting ◽

Industrial Storage ◽

Storage Racks

This paper presents preliminary field observations on the performance of selected steel structures in Christchurch during the earthquake series of 2010 to 2011. This comprises 6 damaging earthquakes, on 4 September and 26 December 2010, February 22, June 6 and two on June 13, 2011. Most notable of these was the 4 September event, at Ms7.1 and MM7 (MM as observed in the Christchurch CBD) and most intense was the 22 February event at Ms6.3 and MM9-10 within the CBD. Focus is on performance of concentrically braced frames, eccentrically braced frames, moment resisting frames and industrial storage racks. With a few notable exceptions, steel structures performed well during this earthquake series, to the extent that inelastic deformations were less than what would have been expected given the severity of the recorded strong motions. Some hypotheses are formulated to explain this satisfactory performance.

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Preliminary report on steel building damage from the Darfield earthquake of September 4, 2010

Bulletin of the New Zealand Society for Earthquake Engineering ◽

10.5459/bnzsee.43.4.351-359 ◽

2010 ◽

Vol 43 (4) ◽

pp. 351-359 ◽

Cited By ~ 7

Author(s):

Michel Bruneau ◽

Myrto Anagnostopoulou ◽

Greg MacRae ◽

Charles Clifton ◽

Alistair Fussell

Keyword(s):

Preliminary Report ◽

Steel Structures ◽

Building Damage ◽

Braced Frames ◽

Concentrically Braced Frames ◽

Seismic Demands ◽

Eccentrically Braced Frames ◽

Concentrically Braced ◽

Steel Building ◽

Steel Tanks

This paper presents preliminary findings based on the performance of various steel structures during the Darfield earthquake of September 4, 2010, including concentrically braced frames, eccentrically braced frames, steel tanks, and steel houses. With a few exceptions, steel structures performed well during this earthquake, but much of this is attributed to the fact that seismic demands from the Darfield earthquake were generally lower than considered in their design.

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