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All Journal Jurnal Mahasiswa Jurusan Teknik Sipil Rekayasa Sipil
Hendro Suseno
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Civil Engineering, Building, Construction & Architecture

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Journal : Rekayasa Sipil

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Analisis Getaran pada Plat Komposit Berlapis dengan Higher Order Shear Deformation Theory Arifi, Eva; Suseno, Hendro; Argo, Dwi
Rekayasa Sipil Vol 4, No 3 (2010)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

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Abstract

The application of laminated composite plate as a structural plate element has been increasingly fast because of their high strength and stiffness properties, light weight, and low unit cost. The application of laminated composite plate needs high accuracy and efficiency in vibration analysis of such structure. A dynamic response to time depended loads can caused damage of the structure.There are three theories of plate have been developed. The first is Classical Plate Theory (CPT) which has a weakness by neglected transverse shear deformation effect. The second is First Order Shear Deformation Theory (FOSDT). This theory accounts for transverse shear deformation, but still need a shear correction factor. In order to overcome this problems, a higher order shear deformation theory was developed. This teory accounts for the transverse shear deformation with a parabolic variation of transverse shear strains throughout the thickness, and the zero transverse shear stress on the surfaces of the plates. There is no need to use shear corrrection factor. HOSDT models gives high accuracy for thin and thick plate, anisotropic and isotropic materials. The purpose of this research is to find the natural frequencies of laminated composite plate for varying thickness, fiber angle, lamina thickness, the number of lamination, and support conditions.Analysis result shows that for lamination composite plate, the natural frequencies depend on length to thickness ratio (a/h) of the plate, fiber angle, lamina thickness, the number of lamination, and support conditions. The decrease of the natural frequencies compares to the increase of the length to thickness ratio (a/h). It is influenced the stiffness of the properties. The affect of support condition shows for hinged condition gives bigger natural frequency compares to simply supported laminated composite plate for the same angle fiber. 
Studi Perencanaan Bentuk Bendungan Beton Sederhana yang Paling Efisien Prastumi, Prastumi; Suseno, Hendro; Pratama, Fabriyanti Yudha
Rekayasa Sipil Vol 5, No 3 (2011)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

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Abstract

Bendungan beton adalah suatu bendungan yang dibuat dengan cara memasang tulangan lalu ditambahcampuran semen, pasir, kerikil sampai berbentuk struktur yang padat. Tujuan dari studi perencanaan iniadalah untuk mengetahui desain kemiringan lereng bendungan beton yang paling efisien. Selain harus stabilterhadap guling dan geser, bendungan haruslah bernilai ekonomis. Kemiringan lereng yang sesuai sangatlahdibutuhkan agar bendungan memiliki kestabilan yang cukup dan bernilai ekonomis. Pada studi perencanaanini dilakukan perhitungan dengan menggunakan profil bendungan beton sederhana yang berbeda. Tahappertama, digunakan profil bendungan beton sederhana dengan bentuk dasar berupa segitiga. Profil inidigunakan untuk mengetahui batas minimal kemiringan lereng bendungan yang bisa digunakan sebagaiacuan untuk perhitungan selanjutnya. Pada tahap kedua, digunakan profil bendungan beton denganmenambah tinggi jagaan. Penambahan ini akan menambah berat sendiri bangunan yang pada akhirnyamenambah volume beton yang dibutuhkan. Pada tahap ketiga, digunakan profil bendungan denganpenambahan jalan inspeksi dan pondasi. Tahap awal perhitungan bendungan didapatkan faktor kemiringanlereng antara 0,612 – 0,73. Range faktor kemiringan lereng tersebut digunakan untuk mendesain lebar dasarbendungan. Sedangkan untuk tahap perhitungan selanjutnya didapatkan grafik hubungan tinggi bendungan,faktor kemiringan lereng dan kedalaman pondasi yang bisa digunakan untuk mencari nilai kemiringan lerengbendungan yang bernilai ekonomis dengan mengutamakan kestabilan bendungan terhadap gaya guling dangeser.Kata kunci: bendungan beton, efisien, kemiringan lereng.
Co-Authors Alhadad, Muhammad Ari Wibowo Dwi Argo Eva Arifi Fabriyanti Yudha Pratama Fadla, Hafizh Ginardi, Ireneus Petrico Indradi Wijatmiko Prastumi Prastumi Retno Anggraini Sri Murni Dewi Wulandari, Fahima