Main Article Content
Abstract
he research was motivated by the desire to obtain inexpensive (optimum) and adequate capacity of structure. This study aims to determine the variation of ? value and fc' on a single reinforcement concrete beams that can produce the most optimum and economical construction. This study used optimization process that requires repetitive calculations, hence the research was categorized as applied research. This cost analysis of a single reinforced concrete beam
consisted of 200 samples for each concrete compressive strength (fc') of 25-35 MPa with an increment of 2.5 MPa. The results of sample analysis produce ? interactions graphs and charts interaction between cost and fc’. In addition, the cost calculations were made assuming the cost without using formwork and using formwork of once until three time usage. This research produced graphic to observe the most optimal and economic reinforcement ratio. Based on the variation of nominal moment, the values of ? was needed for without formwork cost calculation at range of between 0.56-0.66 (times ? needed max ), and the values of ? was needed for the cost calculation by once until three times formwork assumtion at range of beetwen 0.92-1 (times ?max), 0.75-1 (times ?max), and 0.69-1 (times ?max needed) respectively.
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References
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References
Ardiansyah, R., 2010. Analisis Tulangan Optimum untuk Mendapatkan
Efisiensi Biaya Maksimum terhadap Pekerjaaan Balok Lantai (Floor Beam) Gedung Struktur Beton Bertulang, Jurnal Teknik SipilUniversitas Islam Riau.
Dipohusodo, I., 1999. Struktur Beton Bertulang, PT. Gramedia Pustaka
Utama, Jakarta.
DPU, 2011. Daftar Harga Upah, Bahan dan Peralatan, Dinas Pekerjaan Umum Propinsi Bengkulu, Bengkulu.
DPU, 2008. SNI 7394-2008: Tata Cara Perhitungan Harga Satuan Pekerjaan Beton untuk Konstruksi Bangunan Gedung dan Perumahan, Panitia Teknik Standarisasi Bidang Konstruksi dan Bangunan, Bandung.
DPU, 2002. SK-SNI 03-2847-2002 : Tata Cara Perencanaan Struktur Beton untuk Bangunan Gedung, Panitia Teknik Standarisasi Bidang
Konstruksi dan Bangunan, Bandung.
DPU, 1991. SNI T-15-1991-03: Tata Cara Perhitungan Struktur Beton untuk Bangunan Gedung, Yayasan LPMB, Bandung.
Firmansyah, 2007. http://eprints.undip.ac.id/34288/6/1793_chapter_II.pdf, Tanggal 28 Juli 2012, 09.15 WIB.
Gurki, J. T. S., 2007. Beton Bertulang (Edisi Revisi), Rekayasa Sains, Bandung.
LTS, 2012. Data Mix Design Untuk PT. KSS, Laboratorium Konstruksi dan
Teknologi Beton Jurusan Teknik Sipil Fakultas Teknik Universitas Bengkulu, Bengkulu.
Naftali, Y., 1999.Perancangan Struktur dengan Optimasi. http://www.yohanli.com/perancanganstruktur-dengan-optimasi.html, Tanggal 12 Agustus 2012, 10.35 WIB.
Nawy, E. G., dkk., 2010. Beton Bertulang Sebuah Pendekatan Mendasar, ITS Press, Surabaya.
Nur, Oscar Fithrah, 2009. Kajian Eksperimental Prilaku Balok Beton
Tulangan Tunggal Berdasarkan Tipe Keruntuhan Balok, Jurnal Rekayasa
Sipil Volume 5 No. 02.