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INDONESIA
Jurnal Rekayasa Sipil dan Desain
Published by Universitas Lampung
ISSN : 23030011     EISSN : 27150690     DOI : -
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
Arjuna Subject : -
Articles 840 Documents
 77   78   79   80   81 
Manajemen Penjadwalan Menggunakan Microsoft Project dan Analisis Risiko pada Proyek Pembangunan RSPTN Universitas Lampung Alviani, Enggar; Putra, Andius Dasa; Siregar, Amril Maruf; Usman, Kristianto
Jurnal Rekayasa Sipil dan Desain Vol. 11 No. 2 (2023): Edisi Juni 2023
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v11i2.3130

Abstract

Pelaksanaan proyek konstruksi melibatkan serangkaian kegiatan atau pekerjaan yang kompleks dan saling berketerkaitan satu sama lain. Proyek RSPTN Universitas Lampung memiliki potensi risiko yang cukup tinggi dan akan memakan waktu pelaksanaan yang cukup lama mengingat besarnya bobot pekerjaan sehingga dapat menyebabkan keterlambatan, pembengkakkan biaya dan berbagai macam risiko.. Untuk mengantasi hal tersebut diperlukan analisis mengenai penjadwalan guna mencapai efektivitas dan efisiensi yang cukup tinggi serta analisis mengenai faktor risiko terhadap biaya dan waktu agar dapat diidentifikasi dan dikelola dengan baik pada kemungkinan risiko yang akan terjadi. Analisis penjadwalan dilakukan dengan menggunakan Precedence Diagram Method (PDM) dan bantuan perangkat lunak Microsoft Project, sedangkan untuk metode analisis risiko yang digunakan adalah analisis semi kuantitatif, dimana skala-skala deskriptif yang digunakan dalam analisa kuantitatif diberi nilai. Berdasarkan hasil pengolahan data didapatkan bahwa durasi kegiatan normal proyek, yaitu 176 hari, dan pekerjaan yang berada pada lintasan kritis sebanyak 60 pekerjaan dimana sebagian besar berada pada pekerjaan struktur kolom dan dari analisis faktor risiko didapatkan beberapa faktor risiko dominan yakni cuaca tidak menentu, kerusakan atau kehilangan material, kecelakaan tenaga kerja, kesalahan estimasi biaya dan waktu, serta timbulnya kemacetan di sekitar proyek. Kemudian setelah dianalisis kembali penjadwalan setelah terpengaruh oleh faktor risiko didapatkan durasi proyek menjadi 240 hari dengan 50 pekerjaan kritis. Kata kunci : Precedence Diagram Method, Microsoft Project, Risiko, Jadwal.
Evaluasi Kinerja Struktur Gedung Bertingkat dengan Metode Analisis Riwayat Waktu (Studi Kasus: Gedung 6 Rumah Sakit Pendidikan Perguruan Tinggi Negeri (RSPTN) Universitas Lampung) Mudia, Tutia Rahmayani; Bayzoni, Bayzoni; Husni, Hasti Riakara; Isneini, Mohd
Jurnal Rekayasa Sipil dan Desain Vol. 11 No. 2 (2023): Edisi Juni 2023
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v11i2.3134

Abstract

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 struktur
Pemodelan dan Perhitungan Kembali Rencana Anggaran Biaya (RAB) Gedung UKM FISIP Tahap 2 Universitas Lampung Berbasis Teknologi Building Information Modelling (BIM) Farabi, Muhammad Al; Husni, Hasti Riakara; Siregar, Amril Maruf; Bayzoni, Bayzoni
Jurnal Rekayasa Sipil dan Desain Vol. 11 No. 2 (2023): Edisi Juni 2023
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v11i2.3139

Abstract

The rapid development that occurs in the construction sector is important because the construction sector is an important part of the development of a country. The rapid development and high level of project complexity require construction service providers to work more effectively and efficiently. Currently, the development of technology and communication science is able to answer these problems, one of which is by using Building Information Modeling (BIM), which facilitates a more integrated design and construction process in order to obtain efficient results. Stages of research methodology: 1) Preparatory stage; 2) Data collection stage; 3) 3D modelling stage with Autodesk Revit; 4) Clash Check examination stage; 5) Stage of releasing work volume; 6) Stage of preparing The Cost Budget Plan (RAB); 7) Stage of drawing conclusions and presenting results. Overall, the total price difference between the total price using the total volume of work contained in the Bill of Quantity (BoQ) results in a greater total price than using the total volume of work produced by Autodesk Revit, with the following indicators: There is a calculation error in the form of human error in the process of preparing the RAB using the total volume of work contained in the BoQ by planning consultants, such as material double-count errors. From this research, it can be concluded: 1) Modeling with Autodesk Revit greatly speeds up planning work because it is very complex to be applied to various construction projects; 2) The use of BIM is very efficient due to the full-integrity facility; and 3) Output volume issued can minimize human error in calculating work volume manually. Minimizing human error greatly affects the contractor's profit.
Analisis Variasi Layout Shearwall Dengan SNI 1726-2019 Terhadap Perilaku Bangunan Bertingkat (Studi Kasus: Gedung Pelayanan Publik Satu Atap Bandar Lampung) Setiawan, Andi; Isneini, Mohd.; Noorhidana, Vera Agustriana; Husni, Hasti Riakara
Jurnal Rekayasa Sipil dan Desain Vol. 11 No. 2 (2023): Edisi Juni 2023
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v11i2.3171

Abstract

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.
Studi Analisis El Nino Dan La Nina Terhadap Curah Hujan Mengunakan Fast Fourier Transform (FFT) Dan Lomb Periodogram (Studi Kasus : Provinsi Jawa Tengah Fathony, Awal Rifan; Zakaria, Ahmad; Wijaya, Riki Chandra; Kusumaastuti, Dyah Indriana
Jurnal Rekayasa Sipil dan Desain Vol. 11 No. 2 (2023): Edisi Juni 2023
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v11i2.3174

Abstract

Central Java Province is a potential area that has an important role in national food production. El Nino and La Nina events have a very large impact if they occur in Indonesia, especially in Central Java Province. This study aims to analyze the impact of El Nino and La Nina events specifically in Central Java Province where the areas more dominantly affected by El Nino and La Nina. The research location uses 3 rainfall stations, namely the Tunggal Wulung Meteorological Station, Tegal Maritime Meteorological Station, and Tanjung Emas Maritime Meteorological Station. The method used is the Fast Fourier Transform (FFT) method and the long periodogram. The results showed that the periods of El Nino and La Nina phenomena recurring using the FFT method are forecasts for the periods 2.2428, 2.8036, and 3.7381 years. While using the lom periodogram method, namely in the periods of 2,480, 2,621, and 3:16 years. The results of the analysis of the FFT method obtained results that varied in the height of rainfall at the 3 stations, while the results of the analysis using the periodogram log showed that the Tunggal Wulung rain station had the highest peak rainfall. This study concludes that there are variations in the peak incidence using either the slow periodogram or the FFT method. However, both of these methods and based on the BMKG and TRMM, the Tunggal Wulung Meteorological Station has the highest peak between Tegal Station and Tanjung Emas Station.
Studi Perbandingan Beban Gempa Pada Gedung Rawat Inap Non Bedah RSUD Dr. H. Abdul Moeloek, Bandar Lampung Dengan Analisis Respon Spektrum Sesuai SNI 1726:2012 dan SNI 1726:2019 Hania Cipta, Ade Permata; Isneini, Mohd.; Husni, Hasti Riakara; Kusnadi, Andi
Jurnal Rekayasa Sipil dan Desain Vol. 11 No. 2 (2023): Edisi Juni 2023
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v11i2.3189

Abstract

The rapidly growing population is directly proportional to the increasing amount of land use, especially in urban areas, one of which is in the city of Bandar Lampung. The construction of vertical structures or high-rise building structures is an option in overcoming the limited land. However, high-rise building structures are considered to be risky to lateral loads such as earthquake loads, so that in planning, earthquake loads must be considered.This study aims to determine differences in response to the earthquake acceleration spectrum in the City of Bandar Lampung, especially the Non-Surgical Inpatient Building at Dr. H. Abdul Moeloek based on SNI 1726:2012 and SNI 1726:2019. Based on the results of this study, it was found that due to the influence of the earthquake the input spectrum response was in accordance with SNI 1726:2012 and SNI 1726:2019, the base shear force due to the earthquake spectrum response for SNI 1726:2012 was 12900.4864 kN and SNI 1726:2019 was 14931.0787 kN . Interstory drift between levels that occur in the structure are still in the safe category because they do not exceed the story drift allowable levels, 48.4615 mm.
STUDI PERBANDINGAN PEMBEBANAN DINAMIS PADA JEMBATAN BETON TERHADAP PEMODELAN FEA Firdaus, Afridho; Alami, Fikri; Isnaeni, Mohd; Helmi, Masdar
Jurnal Rekayasa Sipil dan Desain Vol. 11 No. 2 (2023): Edisi Juni 2023
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v11i2.3190

Abstract

The natural frequency of the bridge is the frequency to determine the theoretical and experimental feasibility requirements of the bridge. The natural frequency value is used to determine the theoretical and experimental feasibility requirements of the bridge. Analysis of bridge behavior in resisting dynamic loads and comparing theoretical natural frequencies with field tests on prestressed concrete bridges with a span of 40 m using the line model and the shell model in the sap2000 application. Based on the results of bridge modeling using SAP 2000, the natural frequency on the model line is f○ 3.9876 hz and T 0.2507 seconds, while in shell modeling it is obtained f○ 16.045 hz and T 0.6232 seconds. When given a running load the frequency of the bridge in the shell model is f 15.577 hz and T 0.0642 seconds. The natural frequency value obtained from the model line is 3.9876 hz and the natural frequency from the shell model is 16.045 hz which in the shell model the frequency results are closer to the field test results of 16.67 hz with a ratio of 3.75%. The shell model is used as a comparison to the field model.
Karakteristik Campuran Aspal Porus Dengan Menggunakan Material Dari Lampung Suryatama, Noval; Putra, Sasana; herianto, dwi; Sulistyorini, Rahayu
Jurnal Rekayasa Sipil dan Desain Vol. 11 No. 2 (2023): Edisi Juni 2023
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v11i2.3270

Abstract

Porous asphalt is one of the asphalt mixtures being developed for wearing course construction. This layer uses open graded which is dominated by coarse aggregate, resulting in quite large voids. The material used in this study came from Lampung. The purpose of this study was to determine the characteristics of porous asphalt mixtures using materials from Lampung. The results of the aggregate testing show that aggregates originating from Lampung are able to meet the general specifications of Bina Marga in 2018. This study shows that the highest stability is found at 5.5% asphalt content with a stability value of 552.52 kg and the lowest stability at 6.5 asphalt content % with a stability value of 459.22 kg. The lowest flow value is found at 5% asphalt content, which is 5 mm, while the highest flow value is found at 6.5% asphalt content, which is 6.2 mm. The highest VIM was found at 4.5% asphalt content which was 21.77%, while the lowest VIM value was found at 6.5% asphalt content which was 14.07%. The highest cantabro loss value was found at 4.5% asphalt content, which was 39.11%, while the lowest cantabro loss value was found at 6.5% asphalt content, which was 13.91%. The lowest asphalt flow down value is found at 4.5% asphalt content, which is 0.16%, while the highest AFD value is found at 6.5% asphalt content, which is 1.30%. Based on the test specimens for the optimum asphalt content, the permeability coefficient value was 0.075 cm/second.
Pemetaan Kemiringan Lereng Menggunakan Software Geographic Information System Pada Sub DAS Way Pubian Setyanugraha, Tegar; Romdania, Yuda; Herison, Ahmad; Zakaria, Ahmad
Jurnal Rekayasa Sipil dan Desain Vol. 11 No. 2 (2023): Edisi Juni 2023
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v11i2.3274

Abstract

Land use utilization in a watershed must pay attention to the slope. The slope that will be analyzed is the slope of the Way Pubian Subwatershed, Way Seputih Watershed, Lampung Province. Over time, population growth will increase in the Way Pubian Subwatershed area resulting in land use change which is an important trigger factor for landslides. Perhaps slope mapping has been done in many places, but for the Way Pubian Subwatershed area it has never been done. So it is important to conduct slope mapping in the Way Pubian Subwatershed. The purpose of the study was to conduct slope mapping and its classification using ArcGIS. Based on the results of the analysis with ArcGIS obtained slope map in Way Pubian Subwatershed with five classifications namely flat (0-8%), ramps (8-15%), rather steep (15-25%), steep (25-45%), and very steep (>45%). Way Pubian Subwatershed has an area of 11,562.8762 Ha where 3,026.7852 Ha (26.1767%) is the classification of 25-45% slope class (Steep) which is the largest compared to the area of other classification classes. In the classification class flat (0-8%), ramps (8-15%) and rather steep (15-25%) do not have too much difference. While the very steep classification class (>45%) is the area with the least area. The conclusion is that the slope map is obtained with the largest classification of slope is in the steep class.
Analisis Indeks Erosivitas Hujan menggunakan Metode Bols dan Utomo (Studi Kasus: Sub DAS Way Pubian, Das Way Seputih, Provinsi Lampung) Agestia, Lady; Romdania, Yuda; Ashruri, Ashruri; Herison, Ahmad
Jurnal Rekayasa Sipil dan Desain Vol. 11 No. 2 (2023): Edisi Juni 2023
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v11i2.3275

Abstract

Indonesia has a tropical climate which results in high rainfall throughout the year. The high rainfall makes Indonesia prone to erosion. The ability of rainfall to cause erosion is called rainfall erosivity. The study aims to calculate the rainfall erosivity index in the Way Pubian Subwatershed area by comparing the Bols and Utomo methods. The research methods used include; data consistency test, rainfall analysis, and calculation of rainfall erosivity index. Based on several studies on the erosivity index, in the Indonesian region the calculation of the Bols Method erosivity index often gets a higher value than the Utomo Method because the data used for the calculation of the Bols Method requires more data than the Utomo Method which only uses monthly rainfall data. The conclusion is that the Bols Method erosivity index value is 2651.2120 and the Utomo Method is 1008.3435, the Bols Method erosivity index value is higher than the Utomo Method value with an interval of 1642.8685. The use of the Bols equation to calculate the erosivity index value is considered safer to use in estimating the erosion rate. Keywords: Bols, Rainfall Erosivity, Sub Das Way Pubian, Utomo

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