Jurnal Rekayasa Sipil dan Desain
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    Penerapan Building Information Modeling (BIM) Menggunakan Software Autodesk Revit 2019 pada Pekerjaan Non Struktur (Studi Kasus : Gedung B Fakultas Ekonomi dan Bisnis Universitas Lampung)

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    Indonesia's development in the construction sector is progressing very rapidly. With the increasing number of developments in Indonesia, the scale and types of work projects in the field of civil engineering are also increasingly varied. In infrastructure development there needs to be a good system and management. This good system and management can be found in the implementation of Building Information Modeling (BIM) in project implementation. BIM is a process of generating and managing building data in 3D in its project cycle where it can help human limitations in managing data and managing large resources and complex work systems so that errors can be minimized and projects can be analyzed in more depth (Succar , 2008). The purpose of this study was to conduct a study on the use of Building Information Modeling (BIM) in non-structural modeling of Building B, Faculty of Economics and Business, University of Lampung using the Autodesk Revit 2019 software. From the results of the research conducted, non-structural modeling in the form of modeling windows, walls, ceramics , doors and ceilings can be done quickly and well. Then the results of the BoQ comparison between the conventional and Revit methods show a significant difference, this is shown in the difference in brick wall work of -3.91%, the comparison of plastering and plastering work of 6.61%, the difference in the calculation of tiles and bathroom ceilings respectively respectively 3.29% and 4.69%, this is due to differences in calculating the area of brick walls using the conventional method using Revit 2019

    Karakteristik Campuran Aspal Porus Dengan Limbah Plastik Polietilena Tereftalat (PET) Sebagai Bahan Tambah Pada Aspal

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    Plastic waste, which is one of the biggest environmental pollutants, can open up opportunities to be utilized in the field of highway construction because it is easy to obtain and has a more economical price as a porous asphalt mixture. Referring to this, a research was carried out on the characteristics of a mixture of porous asphalt with polyethylene terephthalate (PET) plastic waste as an additive to asphalt. The purpose of this study was to determine the effect of the use of PET plastic waste on the characteristics of porous asphalt mixtures. The method used is a laboratory scale experimental method based on 3 types of testing, namely marshall, cantabro loss and asphalt flow down. The gradation in this study used the open graded Australian Asphalt Pavement Association (AAPA) 2004. The test results showed that the addition of PET could improve the performance of porous asphalt mixtures. Stability, density, MQ, and VFA values increase with the addition of PET content so that they can prevent fractures due to traffic loads. The decrease in the cantabro loss value makes the mixture's resistance to disintegration better. addition of PET content up to 7.5% can reduce the flow value so that the mixture has optimal flexibility. However, the recommended PET content should be below 5% because in this study the penetration and ductility values did not meet the general specifications for 2018 Highways

    Analisis Stabilitas Bangunan Pengaman Pantai (Revetment) di Pantai Muli Lampung Selatan

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    This study analyzes the revetment structure located at Muli Beach, South Lampung, through wave analysis occurring at the beach. The stability of the coastal protection structure, revetment, at Muli Beach is of utmost importance due to safety and security concerns for beach users. If the revetment is unstable, it can cause damage to the structure and potentially pose hazards to the users. The aim of this research is to assess the stability of the revetment structure against high waves occurring at the beach. The analysis method employed in this study utilizes wave forecasting with a return period of 10 years. The analysis also encompasses the examination of the components constituting the revetment structure at Muli Beach. The research findings indicate that the composition of the revetment structure is unstable against high waves. The wave forecasting analysis at Muli Beach resulted in a significant wave height, Hs = 1,02 m and a wave height at breaking point Hb = 1,82 m. Regarding the structure's components, there are several shattered stones > 2, indicating inconsistency with the existing literature. In the analysis of the revetment toe protection, a stability coefficient value of Ns^3 = 290 was obtained, which can be considered safe. Based on these analysis results, it is recommended to implement necessary measures to prevent the collapse of the revetment structure during high wave events. Keywords: revetment, waves, stability, beach

    Evaluasi Kekuatan Struktur Gedung Bertingkat Terhadap Pengaruh Beban Gempa Menggunakan Analisis Dinamik Respon Spektrum (Studi kasus: Gedung MAN Insan Cendikia, Serpong)

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    Indonesia is a region that is at risk of earthquakes. The impact of an earthquake is bad for the building structure, not only causing damage to the building, but also can cause the building to collapse. Therefore, to reduce the adverse effects obtained from earthquakes, it is necessary to design and evaluate the strength of building structures with resistance to earthquake loads. The method used in this study is dynamic response spectrum analysis to obtain the magnitude of the earthquake load. Evaluation of the strength of the building structure is carried out using structural analysis software to make it easier to do the analysis. This study aims to determine the ratio of the required strength in conditions without earthquake loads and conditions due to earthquake loads to the designed strength of the structure. Based on the results of this study, it can be concluded that the required strength obtained in conditions without an earthquake load reaches 8.33% to 90.62% of the designed strength, whereas in conditions due to strong earthquake loads the required strength obtained reaches 12.57% to 153.31% of the designed strength.Keywords: earthquakes, structural strength, dynamic analysis, response spectrum

    Analisis Kombinasi Campuran Serat Baja dan Kawat Bendrat pada Beton Konvensional

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    AbstrakBeton konvensional adalah beton dengan bahan campuran yang terdiri dari semen, air, agregat kasar, dan agregat halus. Beton konvensional memiliki kelemahan, yaitu lemah terhadap tarik dan bersifat getas. Untuk mengatasi kuat tarik yang rendah, beton konvensional dapat dicampurkan dengan serat. Pada penelitian ini, dilakukan penambahan kombinasi campuran serat baja 3D Dramix dan serat kawat bendrat. Tujuan dari penelitian ini adalah mencari perbandingan campuran serat baja 3D Dramix dan kawat bendrat yang optimal, karena dengan mengetahui perbandingan campuran yang optimal maka dapat ditemukan formulasi terbaik dari kerja beton serta dapat menekan pengeluaran untuk kebutuhan material (low effort, high impact). Penelitian ini dilakukan dengan penambahan volume fraksi 0%, 1%, dan 1,5% dari volume adukan beton. Benda uji yang digunakan berupa silinder dengan ukuran diameter 150 mm dan tinggi 300 mm untuk kuat tekan, dan balok dengan ukuran (100 x 100 x 400) mm untuk kuat tarik lentur. Dari hasil penelitian telah didapat kesimpulan : (1) Dari campuran kombinasi 3D Dramix dan kawat bendrat didapat perbandingan yang memberikan hasil paling optimum untuk menaikkan nilai kuat tekan yaitu pada kadar variasi 3D Dramix 0,5% dan kawat bendrat 0,5% di volume fraksi 1%. (2) Dari campuran kombinasi 3D Dramix dan kawat bendrat didapat perbandingan yang memberikan hasil paling optimum untuk menaikkan nilai kuat tarik lentur yaitu pada kadar variasi 3D Dramix 0,5% dan kawat bendrat 1% di volume fraksi 1,5%.  Kata kunci : Serat baja 3D Dramix, kawat bendrat, kuat tekan, kuat tarik lentur

    Pengaruh Pasir Laut Sebagai Campuran dan Air Laut Untuk Curing Terhadap Kuat Tekan Beton

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    AbstrakIndonesia merupakan negara maritim Namun dikarenakan belum meratanya akses masyarakat terhadap air bersih dan langkanya pasir yang sesuai standar, membuat banyak pembangunan yang dilakukan di pesisir pantai dilakukan dengan material yang tidak sesuai dengan standar dan mengakibatkan berubahnya kekuatan beton. Dalam penelitian ini dibahas kuat tekan beton yang menggunakan material pasir laut dan curing menggunakan air laut dimana didapatkan hasil bahwa pasir laut dan curing dengan air laut memiliki dampak negatif terhadap kuat tekan beton dibandingkan menggunakan pasir sungai dan curing dengan air tawar menggunakan sample beton kubus 15x15x15 cm sejumlah 48 sample dengan 2 variasi campuran dan 2 metode curing diuji di umur 7, 14, 28, dan 56 hari. Hasil kuat tekan beton yang menggunakan material pasir laut dan curing menggunakan air laut dimana didapat hasil BPLCT memiliki kuat tekan yang lebih rendah dibanding BNCT senilai 336,1 kg/cm2 dan BNCT senilai 355,9 kg/cm2 pada umur 28 hari dan curing dengan air laut memiliki dampak negatif terhadap kuat tekan beton dibandingkan menggunakan pasir sungai dan curing dengan air tawar dengan nilai BNCL 331,2 kg/cm2 dibanding BNCT senilai 355,9 kg/cm2 pada umur 28 hari. Dapat disimpulkan bahwa penggunaan pasir laut sebagai pencampur beton dan air laut sebagai curing beton menghasilkan pengaruh buruk terhadap kuat tekan beton.Kata kunci : pasir laut, air laut, dan kuat teka

    Simulasi Gradasi Pasir untuk Perbaikan Sifat Fisik Tanah Lempung

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    Tanah ekspansif sering menjadi masalah dalam konstruksi jalan dan bangunan. Siklus kembang susut dapat merusak perkerasan jalan dan fondasi. Di daerah Dusun 3 Umbul Lioh Desa Palembapang, Kalianda terjadi masalah ketika musim hujan tiba, yaitu tanah menjadi lunak dan daya dukungnya menurun, yang dapat menyebabkan masalah dalam pelaksanaan konstruksi. Oleh karena itu, diperlukan usaha untuk memperbaiki tanah tersebut. Perbaikan tanah yang dilakukan yaitu dengan mencampurkan pasir bergradasi baik dengan variasi persentase mulai dari 4%; 8%; 10%; 12% dan 16%. Penelitian ini penting karena menguji perbaikan tanah dengan material bergradasi untuk meningkatkan stabilitas tanah. Berdasarkan hasil uji sifat fisik, tanah diklasifikasikan dalam kategori AASHTO sebagai A-7-5, yang termasuk jenis tanah dengan kategori buruk. Sementara dalam klasifikasi USCS, tanah ini termasuk dalam kategori OH atau MH. Penambahan pasir pada tanah lempung dapat memperbaiki sifat fisik, seperti menurunnya nilai indeks plastisitas dan batas cair, sehingga dapat menurunkan potensi pengembangan. Kadar air mengalami penurunan saat terjadinya penambahan pasir. Perubahan distribusi ukuran partikel tanah dapat memengaruhi aktivitas tanah dan kembang susut saat adanya perubahan kadar air

    Evaluasi Kinerja Struktur Gedung Bertingkat dengan Metode Analisis Riwayat Waktu (Studi Kasus: Gedung 6 Rumah Sakit Pendidikan Perguruan Tinggi Negeri (RSPTN) Universitas Lampung)

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    AbstractThe vulnerability level of a building due to the earthquake force is directly proportional to the height. The design of earthquake-resistant buildings must provide life safety performance, where the structure doesn’t run into collapse prevention but run into moderate damage so that a reduction of fatalities from earthquake disasters. In this case, it is necessary to do research on the evaluation of structural performance due to the quake according to the latest codes. This research takes a case study at the Building 6th of The State University Education Hospital University of Lampung using the time history analysis method with 5 earthquake records (accelerograms) such as: Loma Prieta (1989), Landers (1992), Duzce (1999), Parkfield (2004), and L’Aquila (2009). Structure analysis is calculated using a structure analysis commercial program in a three-dimensional model to find out whether the structure still meets the safety requirements or not according to the drift value between the stories listed in the SNI 1726: 2019. The research result obtained that the value of natural fundamental period is 0,71 seconds and 1,137 seconds in X,Y direction respectively. The Y direction period value exceeds the maximum period of T=1,0571 seconds. The value of base shear already meets the requirements which time history base shear (Vt) is more than 100% of equivalent static base shear (V). The results of drift control of each story meet the requirements of drift permit story (Δa) according to SNI 1726: 2019.Key words : time history analysis, earthquake, structural performanceAbstrakTingkat kerawanan suatu bangunan dalam menahan gaya gempa berbanding lurus dengan ketinggian bangunan yang ada. Perencanaan bangunan tahan gempa harus memberikan kinerja life safety, dimana struktur tidak mengalami keruntuhan tetapi mengalami kerusakan sedang, sehingga berkurangnya korban jiwa dari bencana gempa bumi. Dalam hal ini, perlu dilakukan penelitian mengenai evaluasi kinerja struktur gedung bertingkat akibat gempa sesuai dengan peraturan terbaru. Penelitian ini mengambil studi kasus pada Gedung 6 RSPTN Universitas Lampung menggunakan metode analisis riwayat waktu dengan 5 rekaman gempa (akselerogram) antara lain: Loma Prieta (1989), Landers (1992), Duzce (1999), Parkfield (2004), dan L’Aquila (2009). Analisis struktur dihitung menggunakan program analisis struktur komersial dalam model tiga dimensi bertujuan mengetahui apakah struktur aman atau tidak sesuai batas simpang antar tingkat dalam SNI 1726:2019. Hasil dari penelitian yaitu nilai periode fundamental alami sebesar 0,71 detik dan 1,137 detik untuk arah X dan Y. Nilai periode arah Y melebihi nilai periode maksimal yaitu T=1,0571 detik. Nilai gaya geser dasar sudah memenuhi persyaratan dimana gaya dasar riwayat waktu (Vt) lebih besar 100% dari gaya dasar statik ekivalen(V). Hasil kontrol simpangan antar tingkat memenuhi syarat simpangan antar tingkat izin (Δa) sesuai dengan SNI 1726:2019.Kata kunci : riwayat waktu, gempa, kekuatan struktu

    Analisis Variasi Layout Shearwall Dengan SNI 1726-2019 Terhadap Perilaku Bangunan Bertingkat (Studi Kasus: Gedung Pelayanan Publik Satu Atap Bandar Lampung)

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    Earthquake resistant buildings are not designed only by strengthening the resistance of the structure, but are also designed to reduce earthquake forces. One of the structural reinforcement elements that can reduce earthquake forces is shearwall. The variation of shearwall layout will have a different effect on the performance level of the structure. This study aims to determine the performance level of the structure with a variety of shearwall layouts in a building structure model using the pushover analysis method. Determining the level of structural performance using pushover analysis is carried out using the help of structural analysis programs based on SNI 1726-2019, SNI 1727-2020, SNI 2847-2019 and ATC-40. From the research results it was found that the structural performance level according to ATC-40 (1996), for model 1 and model 6 were included in the damage control category, while for model 2, model 3, model 4 and model 5 were included in the immediate occupancy category. Placement of shearwall which has the optimum value according to ATC-40 for the X direction occurs in model 2 with the shearwall installed in an L shape which is placed near the center of mass of the building. Whereas in the Y direction it occurs in model 3 with the shearwall installed in an L shape which is placed away from the center of mass of the building. Key words : shearwall, model, structure performance level, pushover analysis

    Analisis Perbandingan Pengaruh Variasi Ukuran Panjang Pada Kawat Bendrat Terhadap Beton Konvensional

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    AbstrakBeton adalah material konstruksi yang terdiri dari campuran bahan-bahan seperti semen, air, dan agregat, yang digunakan dalam berbagai jenis infrastruktur. Beton memiliki nilai kuat tekan yang tinggi namun lemah terhadap gaya tarik. Penambahan kawat bendrat pada beton dilakukan untuk menaikkan nilai kuat tarik dan kuat lentur beton. Penelitian ini menggunakan volume fraksi 0%, 0,75% dan 1,5% dengan menggunakan variasi panjang tiap volume fraksi sebesar 30 mm, 50 mm, dan 70 mm dan bertujuan untuk menganalisis panjang kawat bendrat paling efektif sebagai bahan campuran beton. Pengujian dilakukan pada umur rencana 28 hari dan pengujian kuat tekan menggunakan sampel silinder dengan diameter 150 mm dan tinggi 300 mm sedangkan pengujian kuat tarik lentur menggunakan sampel balok dengan ukuran 100x100x400 mm. Pada kuat tekan penambahan serat kawat bendrat dinilai tidak efektif dan mengalami penurunan terkecil pada beton volume fraksi 0,75% panjang kawat bendrat 50 mm dengan penurunan sebesar 0,68%. Sedangkan pada kuat tarik lentur penambahan serat kawat bendrat dinilai efektif dan mengalami peningkatan terbesar sebesar 168,39% dari beton normal yaitu pada beton volume fraksi 1,5% dengan panjang kawat bendrat 50 mm.Kata kunci : beton, serat kawat bendrat, variasi panjang, kuat tekan, kuat tarik lentur

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