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All Journal Jurnal Teknik Sipil Jurnal Rekayasa Jurnal Rekayasa Sipil dan Desain
Surya Sebayang
Universitas Lampung
Civil Engineering, Building, Construction & Architecture Engineering Transportation Other

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Pengaruh Abu Terbang Terhadap Sifat-Sifat Mekanik Beton Alir Ringan Alwa Surya Sebayang; Ratna Widyawati; Muhammad Habibie B.
Jurnal Teknik Sipil Vol 3, No 1 (2012): April
Publisher : Universitas Bandar Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (466.595 KB) | DOI: 10.36448/jts.v3i1.274

Abstract

Flowing concrete flow under it own weight and maintain homogeneity while filling and passing around congested reinforcement. Lightweight flowing concrete is used to reduce or eliminate the requirement vibration to reduce construction cost, reducing construction time, and and minimize the dead load of the weight of its own. The purpose of this study is to determine and compare the effect of adding the percentage of fly ash in lightweight flowing concrete mixture of the mechanical properties by analyzing workability, bulk density, compressive strength, modulus of elasticity of concrete and setting time. Mix design using the ACI method combined with the method of Hashimoto. The substitution of fly ash to the concrete are 0%, 3%, 6%, 9%, 12%, and 15% of the cement content. Treatment of samples was done by soaking and aerated for 7 days. Compressive strength testing performed on specimens aged 7 days, 28 days and 56 days. From the test results obtained : (1) Effect of fly ash in fresh concrete was increased the workability of the concrete, (2) Additionn of fly ash was increased the initial and final setting time, (3) by using natural sand materials from Tanjung Bintang produce concrete with a weight (mass) concrete slightly exceeded the limit of weight requirements of lightweight concrete (1850 kg/m3), (4) The optimum strength of fly ash lightweight flowing concrete was 22,98 MPa at 56 days age in 6% percentage of fly ash.
PENGARUH KADAR ABU TERBANG SEBAGAI PENGGANTI SEJUMLAH SEMEN PADA BETON ALIR MUTU TINGGI Surya Sebayang
Rekayasa : Jurnal Ilmiah Fakultas Teknik Universitas Lampung Vol 14, No 1 (2010): Edisi April Tahun 2010
Publisher : UNIVERSITAS LAMPUNG

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Abstract

Flowing concrete flow under it own weight and maintain homogeneity while filling and passingaround congested reinforcement. Flowing concrete is used to reduce or eliminate the need forvibration to reduce construction cost and reducing construction time. High strength flowingconcrete in this research used fly ash obtained from PLTU Suralaya Banten as substitutionmaterial the amount of cement. The properties investigated are workability, concrete setting time,unit weight, and compression strength. Proportion of material for concrete determined accordingto ACI 211-4R-1993 and combine with Hashimoto method. The substitution of fly ash to theconcrete are 0 %, 3%, 6%, 9%, 12% and 15% of the cement content. The test result indicated thateffect of fly ash in fresh concrete was increased the workability of the concrete. Addition of fly ashwas made fresh concrete enough cohesiveness without causing segregation. Addition of fly ashwas increased the initial and final setting time. The cylinder compression strength of fly ashflowing concrete at 7days, 14 days and 28 days was lower than compression strength of flowingconcrete without fly as at the same days. The optimum strength of fly ash flowing concrete was48,607 MPa at 56 days age in 9 % presence of fly ash.
STUDI DALAM PENYUSUNAN RANCANGAN PERDA BARU TENTANG PAJAK “ATAS PENGUSAHAAN SARANG BURUNG WALET” KABUPATEN TULANG BAWANG Surya Sebayang
Rekayasa : Jurnal Ilmiah Fakultas Teknik Universitas Lampung Vol 13, No 2 (2009): Edisi Agustus Tahun 2009
Publisher : UNIVERSITAS LAMPUNG

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Abstract

Pelaksanaan UU No.22 Tahun 1999 yang diubah menjadi UU No 32 Tahun 2004 tentangPemerintahan daerah dan UU No.25 Tahun 1999 yang diubah menjadi UU No 33 tahun 2004tentang perimbangan Keuangan Antara Pusat dan Daerah telah menyebabkan perubahan yangmendasar mengenai pengaturan hubungan Pusat dan Daerah, khususnya dalam bidang administrasipemerintahan maupun dalam hubungan keuangan antara Pemerintah Pusat dan Daerah, yangdikenal sebagai era otonomi daerah yang sedang bergulir saat ini. Otonomi daerah tersebutmemberikan kewenangan serta keleluasaan kepada Pemerintah Daerah Tulang Bawang dalammengembangkan potensi ekonomi dan sumber-sumber keuangan daerah yang dimilikinya. Haltersebut perlu dilakukan karena kemampuan Pendapatan Asli Daerah (PAD) masih sangat kecil (sekitar 10 %) dari anggaran rutin tahun ini (APBD). Keadaan demikian itulah yang mendorongpemerintah daerah otonom berupaya menggali potensi perekonomian untuk meningkatkankemampuan keuangan daerah sendiri. Yang diantaranya adalah dengan rencanamengoptimalkan PAD melalui potensi berkembangnya pengusahaan sarang burung walet,dengan jalan dibuatkannya perda tentang pajak atas pengusahaan sarang burung walet dikabupaten Tulang Bawang.
Modifikasi Struktur Rumah Sakit Umum Hermina Lampung dengan Metode Sistem Rangka Bresing Eksentris (SRBE) untuk Bangunan Tahan Gempa Lukman Sarifuddin; Mohd Isneini; Surya Sebayang
Jurnal Rekayasa Sipil dan Desain Vol 9, No 2 (2021): Edisi Juni 2021
Publisher : Jurnal Rekayasa Sipil dan Desain

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Abstract

Eccentrically Braced Frame System (EBFs) is a diagonal brace system which at least one end of each supporting element supports the beam at a certain distance from the location of the beam-column joint, or from another diagonal end by a distance called a link or eccentricity. . This study aims to determine how to plan a steel structure building using the Eccentrically Braced Frame System (EBFs) method and to find out how the joint planning method for the steel structure.Hermina Lampung General Hospital is a building consisting of eight floors built using reinforced concrete construction which will be re-planned using the Eccentrically Braced Frame System (EBFs). The standard provisions in the calculations used in this study refer to SNI 1729 (2020) about cerning the Procedure for Planning Building Steel Structures.Based on the results of the research that has been done, it can be concluded that in calculating the steel frame structure using Eccentrically Braced Frame System (EBFs) can be planned based on SNI 1729 (2020) or AISC 360 (2016), but to calculate the link and brace components refer to SNI 7860 (2020) or AISC 341 (2016). Meanwhile, connection planning can be carried out based on SNI 1729 (2020) and SNI 7860 (2020) by using two methods, namely load and resistance factor design (LRFD) and allowable strength design (ASD).
Co-Authors Lukman Sarifuddin Mohd Isneini Muhammad Habibie B. Ratna Widyawati