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All Journal Jurnal Rekayasa Jurnal Rekayasa Sipil dan Desain Prosiding Seminar Nasional Hasil Penelitian Sains, Teknik dan Aplikasi Industri Fakultas Teknik Universitas Lampung
Surya Sebayang
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Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Other

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CORRELATION BETWEEN RICE HUSK ASH AS SUBSTITUTION MATERIALS THE AMOUNT OF CEMENT AND PROPERTIES OF HIGH STRENGTH FLOWING CONCRETE Surya Sebayang
Rekayasa : Jurnal Ilmiah Fakultas Teknik Universitas Lampung Vol 15, No 1 (2011): Edisi April Tahun 2011
Publisher : UNIVERSITAS LAMPUNG

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Flowing concrete flow under it own weight and maintain homogeneity while filling and passing around congested reinforcement. Flowing concrete is used to reduce or eliminate the need for vibration to reduce construction cost and reducing construction time. High strength flowing concrete in this research used rice husk ash as substitution material the amount of cement. The properties investigated are workability, concrete setting time, and compression strength.Proportion of material for concrete determined according to ACI 211-4R-1993 and combine with Hashimoto method. The substitution of rice husk ash to the concrete are 0 %, 3%, 6%, 9%, 12% and 15% of the cement content. The test result indicated that effect of rice husk ash in fresh concrete was increased the workability of the concrete. Addition of rice husk ash was made fresh concrete enough cohesiveness without causing segregation. Addition of rice husk ash was increased the initial and final setting time. The cylinder compression strength of rice husk ash flowing concrete at 7day and 14 days was lower than compression strength of flowing concrete without rice husk ash at the same days. The optimum strength of rice husk ash flowing concrete was 44,44 MPa at 56 days age in 12 % presence of rice husk ash.
design and analysis of cable stayed bridge with 800 m span Mohammad Salman Manan; Bayzoni Bayzoni; Surya Sebayang
Jurnal Rekayasa Sipil dan Desain Vol 6, No 4 (2018): Edisi Desember 2018
Publisher : Jurnal Rekayasa Sipil dan Desain

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Bridges are constructions that connect people and land transportation that is blocked by obstacles. One of which is the type of cable stayed bridge.. This bridge structure consists of a combination of various structural components such as pylon, cable and deck. The deck is hung with a prestressed cable that is anchored to the pole. Gravitational and lateral forces acting on the bridge deck will be transferred to the ground via cables and pylon. The cable will receive tensile force and the pylon accepts the compressive force. This bridge planned 800 m long, 14 m wide traffic, 1.5 m sidewalk width, elongated girder type is tub girder, 300 mm plate thickness, cable arrangement is 2 fields and fan, and the cable used is VSL 7-wire strand. Girder quality of 290 MPa, concrete quality of 35 MPa, and welding quality of 490 MPa. Bridge model calculations are supported by SAP 2000 and Microsoft Excel programs. From the calculation results obtained the reinforcement design for the sidewalk using the main reinforcement D16-150 mm and reinforcement for D13-200 mm, reinforcement for vehicle floors both in the field and pedestal with the main reinforcement D22-100 mm and reinforcement for D16-100 mm. The dimensions of the girder used were flanges of 1 m x 0.05 m, web 1.3 m x 0.01 m and lower fluxes 4.2 m x 0.04 m. To get a more stable structure design, 3-dimensional analysis is needed. Keywords: Cable Stayed Bridge, Tub Girder, Girder
Pengaruh Abu Terbang Sebagai Bahan Pengganti Semen Pada Bata Beton Beragregat Bottom Ash Robby Chandra Hasyim; Surya Sebayang; Andi Kusnadi
Jurnal Rekayasa Sipil dan Desain Vol 5, No 4 (2017): Edisi Desember 2017
Publisher : Jurnal Rekayasa Sipil dan Desain

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Setiap tahunnya pertambahan penduduk di Indonesia semakin meningkat.  Hal ini berbanding lurus dengan meningkatnya kebutuhan akan pemukiman. Untuk mengatasi masalah tersebut dapat memanfaatkan bahan-bahan alternative sebagai bahan ikat dan material pengganti. Salah satu bahan alternatif yang mudah ditemukan di Indonesia adalah limbah batu bara yaitu abu terbang (fly ash) dan abu dasar (bottom ash). Selain dapat mengurangi pencemaran lingkungan karena termasuk limbah b3, limbah ini juga memiliki sifat pozzolan atau sifat mengikat seperti semen. Sehingga sangat efektif untuk digunakan dari berbagai segi. Penelitian yang dapat dilakukan dalam pemanfaatan limbah ini salah satunya dengan pembuatan bata beton berlubang dengan fly ash sebagai bahan pengganti sebagian semen dan bottom ash sebagai bahan pengganti sebagian pasir.Dari hasil penelitian didapat nilai kuat tekan paling tinggi adalah bata beton dengan komposisi fly ash sebesar 20% dari berat semen dengan nilai kuat tekan 33,3 kg/cm2 pada umur 28 hari dan 41,34 kg/cm2 pada umur 56 hari. Untuk nilai serapan air semua variasi fly ash masuk dalam klasifikasi mutu I (≤ 25%) dengan nilai serapan air optimum pada variasi fly ash 40% dengan nilai sebesar 11,3% pada umur 28 hari dan 9,65% pada umur 56 hari.Kata Kunci : Bata Beton, Fly Ash, Bottom Ash..
Analisis Struktur Gedung POP Hotel Terhadap Beban Gempa Dengan Metode Pushover Analysis Zainal Arifin; Suyadi Suyadi; Surya Sebayang
Jurnal Rekayasa Sipil dan Desain Vol 3, No 3 (2015): Edisi September 2015
Publisher : Jurnal Rekayasa Sipil dan Desain

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In a fact, the development of Indonesian building codes demand higher design earthquake load.This condition generates the need for retrofitting in existing building that was design with olderbuilding codes, in purpose to acquire the safe building performance. The significant load increaseshown in the latest building code (SNI 1726-2012) gives the urgency to perform seismic riskasessment and retrofit design for this building.Seismic risk of the building is determined from the performance level through static non-linearanalysis (pushover) based on the design earthquake of the new code (SNI 1726-2012). This resultmeans that the damage control performance level, unless retrofitting is performed on each of thedeficient element.Keywords : SNI 1726-2012, pushover, damage control, load of earthquake.
Evaluasi Perencanaan Jembatan Beton Bertulang Balok T dengan Variasi Mutu Antara K-200 – K-300 Devie Arisandy Sumantri; Bayzoni Bayzoni; Surya Sebayang
Jurnal Rekayasa Sipil dan Desain Vol 5, No 1 (2017): Edisi Maret 2017
Publisher : Jurnal Rekayasa Sipil dan Desain

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Design of reinforced concrete T beams bridge with variation concrete strength is conducted to determine design of a bridge which can be built in remote area with a minimum concrete quality but still in accordance with the applicable safety standards. The bridge has a span of 15 m, a width of traffic lanes 2 x 5.5 m with variations concrete strength of K-200, K-225, K-250, K-275 and K-300. The calculations that have been done show that in cross section 2-2 , cross section 3-3 and cross section 4-4, the lower concrete strength will obtains more flexural girder reinforcement needs. However at cross section 1-1 the amount of reinforcement on every concrete strength has the same amount of reinforcement because the reinforcement ratio is the ratio of minimum reinforcement. Shear reinforcement of girder using the same diameter will produce the reinforcement needs with larger spacing while concrete strength increased. Maximum girder deflection that occurs will be smaller if the concrete strength increases. However, if the amount of reinforcement in the quality of K-200 more larger then the value deflection will be smaller compared with the quality of K-300. The lower quality of flexural strength concrete slab with the D16 will get smaller reinforcement spacing.Key word : bridge, T beams, quality variation, Upper structure
Pengaruh Resin Epoksi Terhadap Mortar Polimer Ditinjau dari Kuat Tekan, Kuat Tarik Belah, Daya Serap Air dan Scanning Electron Microscope Joksan Arif; Hasti Riakara Husni; Surya Sebayang
Jurnal Rekayasa Sipil dan Desain Vol 3, No 3 (2015): Edisi September 2015
Publisher : Jurnal Rekayasa Sipil dan Desain

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Polymer mortar is a material formed through the process of building a composite concrete andbuilding polymers. Polymer mortar development efforts have been conducted in developedcountries. Until now the development of polymer mortar is still underway to reduce the use of thesemen, in order to anticipate the global warming. One of them is by using a polymer adhesivecement replacement material so produced a powerful mortal in a shorter time.On research was created mortal polymers without cement, fine aggregate and epoxy resin as thebinder of concrete. The composition of the raw materials of polymer mortar made with acomparison between aggregate and epoxy resins, with her blend of 20%, 25% .30%, 35%, 40% (%of the total weight of the aggregate). Mortar has been mold then dried in an oven at a temperatureof 600 C for 24 hours. Parameters measured include: water absorption, compressian strength,tensile strength, and microstructure analysis using a Scanning Electron Microscope (SEM). Theobservations suggest that the optimum condition of polymer mortar obtained on composition: 65%of the aggregate (aggregate) and 35% epoxy resin (% of weight of fine aggregate). In this state ofpolymer mortar characteristics obtained as follows: water absorption = 3,57%, compressianstrength = 6.80 MPa, and tensile strength = 1.75 Mpa. The microstructure of the polymer concreteanalyzed using SEM. Result showed that pore size distribution was uneven, and wisps of epoxyresin ≤ 30 μm.Keywords: compressian strength, tensile strength, water absorption, Scanning ElectronMicroscopy (SEM), polymer mortal.
Techincal Planning Of Strategical Bridge in Way Umpu Way Kanan Regency I Gede Putu Indra Aditya; I Wayan Diana; Surya Sebayang
Jurnal Rekayasa Sipil dan Desain Vol 8, No 2 (2020): Edisi Juni 2020
Publisher : Jurnal Rekayasa Sipil dan Desain

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The Way Umpu Bridge is located in Blambangan Umpu District, Way Kanan Regency which ispart of the Trans-Central Sumatra road section. In the structural elements of the bridge damageoccurs in the structural elements on the bridge so that it can endanger road and bridge users.Therefore effective and efficient planning is needed for the design of the new bridge.Standards used as a reference in planning the Way Umpu Bridge are SNI 1725-2016, RSNI T-02-2005 and PUPR PERMEN NUMBER 28 / PRT / M / 2016. By using supporting software for thecalculation and design of AutoCAD 2017, Microsoft Excel 2013, Google Earth Pro and SAP 2000V 14.The results of this plan are (1) effective type of bridge top structure is a class A bridge framestructure with a span length of 60 m, (2) the type of effective lower structure used is a supportedT-type support and the foundation of the pre-cast concrete piles ( rotating) pile), and (3) totalconstruction costs provided by labor costs, supply of materials and equipment, heavy equipmentoperating and rental costs and taxes of Rp 16,644,725,377.
Pengaruh Serat Baja Terhadap Kuat Tarik Lentur Balok Beton yang Disambung Tri Ratna Utami; Vera Agustriana Noorhidana; Surya Sebayang; Masdar Helmi
Jurnal Rekayasa Sipil dan Desain Vol 10, No 2 (2022): Edisi Juni 2022
Publisher : Jurnal Rekayasa Sipil dan Desain

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The casting of concrete at different times often occurs, this is due to insufficient casting time, expansion or connection of structural components, strengthening of structures with additional dimensions, and so on. Thus there will be the addition of a new layer of concrete (overlay). This study is to determine the flexural tensile strength of concrete beams for joining old concrete and new concrete with the addition of steel fiber volume fractions of 0%, 1%, 1.5%, and 2% in the substrate layers overlay and also the compressive strength of the concrete in each layer. The samples in this study were beams (15 x 15 x 60 cm) with a thickness of 7.5 cm for substrate and overlay for flexural tensile strength testing and cylinders (15 cm in diameter and 30 cm in height) for compressive strength testing. From the results of the study, it was found that the flexural tensile strength of the beam with the addition of steel fibers in the substrate layer was higher than the addition of steel fibers in the overlay layer. The addition of steel fibers in the substrate and overlay layers makes the beam more ductile. The maximum flexural tensile strength of the beam with the addition of steel fibers in the substrate layer occurs at  volume fraction 1.5%, has an increase of 114.03% from the joint beam without steel fibers while the addition of steel fibers in the overlay layer occurs at volume fraction 2%, has an increase of 8.66% of the joint beams without steel fibers.
Pengaruh Penggunaan Fly Ash Sebgai Bahan Pengganti Sejumlah Semen dan Bahan Tambahan Terhadap Kuat Tekan pada Self Compacting Concrete (SCC) Corry Jayaputri Sahast; Vera Agustriana Noorhidana; Laksmi Irianti; Surya Sebayang
Jurnal Rekayasa Sipil dan Desain Vol 10, No 2 (2022): Edisi Juni 2022
Publisher : Jurnal Rekayasa Sipil dan Desain

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Self Compacting Concrete (SCC) is an innovation of concrete which has an ability to flow on its own to fill the empty voids between reinforcement and formwork without support of compaction equipment to obtain its optimum compaction. In this research, concrete cylinder with dimension of 15 cm for diameter and 30 cm for height were used as a specimen and mixed with fly ash type C as cement partial substitute material and additional substance by variation of 0%, 3%, 6%, 9%, and 12% with water cement ratio of 0.41. Slump flow test was perform to identify concrete flowability and workability followed by concrete compression test to identify compressive strength which was conducted at the age of 35 days and 56 days. Due to the fact that percentage variation of fly ash increment, the value of slump flow test was experiencing degradation whereas the compressive strength was increased. Nonetheless, the optimum fly ash application appeared when fly ash was applied as a cement partial substitute at variation of 3%, which provide concrete compressive strength in the amount of 35.98 MPa (35 days) and 33.68 MPa (56 days), and the value of concrete density were 2313.21 kg/m3 and 2279.66 kg/m3 , where the standard of slump flow test and T50 values had accomplished.
Pengaruh Beban Gempa pada Gedung Rawat Inap Non Bedah RSUD Dr. H. Abdul Moeloek Berdinding Geser Tidak Simetris dengan Menggunakan Metode Statik Ekuivalen Siti Zalfa Mardhatillah; Mohd Isneini; Surya Sebayang; Chatarina Niken DWSBU
Jurnal Rekayasa Sipil dan Desain Vol 10, No 1 (2022): Edisi Maret 2022
Publisher : Jurnal Rekayasa Sipil dan Desain

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Pengaruh beban gempa dengan dinding geser tidak simetris dipelajari untuk mengetahui kekuatan struktur gedung tersebut terhadap gaya gempa. Penelitian mengambil kasus Gedung rawat inap non bedah RSUD Abdul Moeloek Bandar Lampung 4 lantai dengan meninjau peningkatan momen dan geser dengan mempertimbangkan dimensi dan tulangan pada pelat, kolom dan balok. Gedung memakai dinding geser pada salah satu ujung pada lantai 1 dan 2. Perhitungan beban gempa menggunakan metode statik ekuivalen dan data diolah dengan metode outlying. Momen dan geser pada kondisi tanpa gempa dan dengan gempa dibandingkan. Penelitian ini dibandingkan dengan hasil penelitian (Prayuda et al., 2020)⁠ yang meneliti pengaruh gempa pada Gedung 12 lantai dengan dinding geser terletak di tengah bangunan dan terpasang dari lantai 1 s.d 12. Hasil penelitian ini adalah momen kolom mengalami kenaikan 222.5%, gaya geser 242.25% saat menahan gempa. Peningkatan momen dan geser berturut-turut 5 kali dan 3 kali lebih besar daripada penelitian (Prayuda et al., 2020)⁠. Kenaikan momen dan geser kolom di dekat ram berturut-turut mencapai 1153% dan 780%. Simpangan antar lantai arah x di bawah simpangan izin kecuali kolom 5’ yaitu kolom pada bangunan tambahan; sedangkan simpangan arah y untuk lantai 2, 3, 5 dan 5’ yaitu lantai yang tidak memiliki dinding geser melebihi simpangan izin. Simpangan yang sangat besar terjadi pada bangunan tambahan baik arah x maupun y. Perubahan simpangan yang besar antar lantai, dapat menyebabkan lantai tersebut terpotong bila terjadi gempa besar. Perubahan gaya geser menyebabkan balok dan kolom yang semula aman menjadi tidak aman, sehingga perlu dilakukan penambahan dimensi atau penggunaan perkuatan struktur.
Co-Authors Andi Kusnadi Bayzoni Bayzoni Chatarina Niken DWSBU Corry Jayaputri Sahast Devie Arisandy Sumantri Hasti Riakara Husni I Gede Putu Indra Aditya I Wayan Diana Joksan Arif Laksmi Irianti Laksmi Iriyanti Masdar Helmi Mohammad Salman Manan Mohd Isneini Nur Mila Putri Ofik T.P. Robby Chandra Hasyim Siti Zalfa Mardhatillah Suyadi Suyadi Tri Ratna Utami vera A.N. Vera Agustriana Noorhidana Yoleta T.P. Zainal Arifin