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All Journal JTT (Jurnal Teknologi Terpadu)
Achmad, S.T., M.T, Karmila
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Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Materials Science & Nanotechnology Mechanical Engineering

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Analisa Kekuatan Profil Hexagonal Castellated dengan Variasi Sudut Bukaan Achmad, S.T., M.T, Karmila; Anggraini, Elok Delima; Wijadmoko, Wijadmoko; Huda, Masrul
Jurnal Teknologi Terpadu Vol 12, No 2 (2024): JTT (Jurnal Teknologi Terpadu)
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32487/jtt.v12i2.2213

Abstract

Profil Hexagonal Castellated adalah struktur dengan elemen berbentuk hexagonal yang saling terhubung untuk membentuk rangkaian yang optimal dan tepat. Dalam penelitian ini dilakukan analisa kekuatan pada profil WF yang dimodifikasi menjadi profil Hexagonal Castellated dengan variasi sudut bukaan yaitu 30°,45° dan 60°. Analisa dilakukan dengan metode LRFD dengan menggabungkan faktor beban dan faktor ketahanan untuk menentukan kekuatan struktur dengan lebih akurat. Faktor beban mencakup beban mati,beban hidup dan beban angina, sedangkan faktor ketahanan mencakup faktor keamanan terhadap kegagalan profil dan material. Kekuatan profil hexagonal castellated ditinjau dari kekuatan geser dan kekuatan lenturnya.Hasil dari analisa variasi sudut bukaan 30°,45° dan 60° didapatkan nilai teganagan geser terbesar pada sudut bukaan 30° yaitu 156,81 MPa  dan nilai tegangan lentur terbesar pada sudut bukaan 45° yaitu 102,21 MPa
Pemanfaatan Pasir Lokal Kecamatan Palaran Kota Samarinda Kalimantan Timur sebagai Material Pembuatan Beton Normal Achmad, S.T., M.T, Karmila
Jurnal Teknologi Terpadu Vol 13, No 2 (2025): JTT (Jurnal Terpadu Terpadu)
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32487/jtt.v13i2.2471

Abstract

The local sand utilization is expected as an alternative to achieve more efficient construction cost. The availability of adequate local sand in Samarinda is located in Palaran sub-district. Palaran sub-district is the third largest sub-district of 10 sub-districts in Samarinda. Geographically, the sub-district has 5 villages with a land area of 156.29 km2. Besides Palu sand, the local community generally uses two local sand types for construction, mountain sand in Bantuas village and river sand in Handil Bakti village. This study aims to obtain an alternative local sand material for forming concrete having good concrete compressive strength. For this reason, some sand material tests will be carried out: gradation tests, specific gravity and absorption, water content, mud content and unit weight. For the gravel test, the sand test is added with an abrasion test. The concrete compressive strength test result showed local sand from the mountain sand of Bantuas village has a higher compressive strength compared to other variations, concrete using Palu sand and concrete using Handil Bakti Village River sand. The results of the 14-day compression test obtained the concrete strength using mountain sand from Bantuas Village of K-304.60, river sand from Handil Bakti Village of K-240.27, and Palu sand of K-248.27. While,the 28-day compression test result obtained the concrete strength using mountain sand from Bantuas Village of K-337.68, river sand from Handil Bakti Village of K-247.06, and Palu sand of K-274.40.
Co-Authors Anggraini, Elok Delima Huda, Masrul Wijadmoko, Wijadmoko