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Evaluasi Struktur Jembatan Gantung Pejalan Kaki Dumpoh, Magelang Jawa Tengah 爪哇中部吊桥结构评估
Rekayasa Sipil Pub Date : 2023-05-03 DOI: 10.21776/ub.rekayasasipil.2023.017.02.4
Algazt Aryad Masagala
{"title":"Evaluasi Struktur Jembatan Gantung Pejalan Kaki Dumpoh, Magelang Jawa Tengah","authors":"Algazt Aryad Masagala","doi":"10.21776/ub.rekayasasipil.2023.017.02.4","DOIUrl":"https://doi.org/10.21776/ub.rekayasasipil.2023.017.02.4","url":null,"abstract":"The bridge analyzed is a suspension type with a function as a pedestrian bridge. The bridge has a total span of 53.75 m and a width of 1.8 m, steel construction with wooden deck. The service life factor, damage to the bridge frame, and overload are certainly a problem for this bridge structure. Evaluation of the structure using survey data from existing measurements at the bridge location, then analyzed using the SAP2000 program. The result is that all tower frames, girders, main cables, hangers, and bridge decks, the nominal capacity is still able to withstand the ultimate load. However, the deflection in the middle of the bridge span is 0.72 m and has exceeded the allowable deflection (L/200). So based on the results of the evaluation of the Dumpoh suspension bridge structure, the cross-sectional strength of the frame is still safe, but the stiffness of the deflection value does not meet.","PeriodicalId":31886,"journal":{"name":"Rekayasa Sipil","volume":"60 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89518360","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Kajian Kebutuhan Ventilasi Alami Ruangan pada Bangunan Gedung 研究建筑物的自然通风需求
Rekayasa Sipil Pub Date : 2023-05-03 DOI: 10.21776/ub.rekayasasipil.2023.017.02.2
Kennardy Winardo, Mia Wimala
{"title":"Kajian Kebutuhan Ventilasi Alami Ruangan pada Bangunan Gedung","authors":"Kennardy Winardo, Mia Wimala","doi":"10.21776/ub.rekayasasipil.2023.017.02.2","DOIUrl":"https://doi.org/10.21776/ub.rekayasasipil.2023.017.02.2","url":null,"abstract":"The Indonesian National Standard (SNI) 6572:2001 on natural ventilation in buildings has not been updated in the last 20 years, while similar standards in other countries have been periodically improved. The development of science and technology, environmental conditions, coupled with the COVID-19 pandemic that affects the entire world are the basis for consideration of the adjustment of related standards. The purpose of this study is to look at the standards for natural ventilation in several countries, namely the United States, Singapore, Malaysia, and Australia, as well as identify criteria that can be applied according to conditions in Indonesia. The results showed that the need for natural ventilation in buildings in Indonesia by 5% has met the existing conditions. However, further studies regarding the need for natural ventilation that are adjusted based on the function of the room as determined by ASHRAE 62.1 need to be carried out.","PeriodicalId":31886,"journal":{"name":"Rekayasa Sipil","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84370747","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Investigating Knowledge Management Maturity Level in Medium-sized Construction Companies 中型建筑企业知识管理成熟度研究
Rekayasa Sipil Pub Date : 2023-05-03 DOI: 10.21776/ub.rekayasasipil.2023.017.02.15
Kartika Puspa Negara, Saifoe El Unas, Mita Wulan Savitri
{"title":"Investigating Knowledge Management Maturity Level in Medium-sized Construction Companies","authors":"Kartika Puspa Negara, Saifoe El Unas, Mita Wulan Savitri","doi":"10.21776/ub.rekayasasipil.2023.017.02.15","DOIUrl":"https://doi.org/10.21776/ub.rekayasasipil.2023.017.02.15","url":null,"abstract":"Construction companies are knowledge-intensive industries that operate in highly competitive environment. They have to utilize their knowledge effectively to maintain their competitiveness. There are extensive literature explaining how large organizations have established effective knowledge management (KM) initiatives, which is in contrast to the little attention given to small and medium construction companies (SMEs). In fact, in East Java Indonesia, SMEs construction companies account for more than 90% of the construction sector. For these companies, to exploit the optimal benefits of KM, knowledge maturity could be used as a way of providing practical decision assistance. Therefore, this study aims to investigate the maturity level of KM in medium-sized construction companies. APO KM assessment tools are employed to address the objective of this study. This research found some areas that need to be improved by small-medium construction companies in order to enhance their knowledge management. It is expected that this study nourishes the existing literature on knowledge management areas.","PeriodicalId":31886,"journal":{"name":"Rekayasa Sipil","volume":"178 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74975000","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Pemetaan Kerawanan Tanah Longsor di Hulu DAS Tanggul 扫雷河堤上游泥石流支流
Rekayasa Sipil Pub Date : 2023-05-03 DOI: 10.21776/ub.rekayasasipil.2023.017.02.12
Gatrawan Muchammad Albirru, Indra Nurtjahjaningtyas, Entin Hidayah
{"title":"Pemetaan Kerawanan Tanah Longsor di Hulu DAS Tanggul","authors":"Gatrawan Muchammad Albirru, Indra Nurtjahjaningtyas, Entin Hidayah","doi":"10.21776/ub.rekayasasipil.2023.017.02.12","DOIUrl":"https://doi.org/10.21776/ub.rekayasasipil.2023.017.02.12","url":null,"abstract":"Landslides are one of the natural disasters that often occur in the Upper Tanggul Watershed. This study aims to produce a landslide susceptibility map based on the Geographic Information System (GIS). Seven landslides conditioning factors used, namely land cover, river density, slope, aspect, elevation, curvature and Normalized Difference Vegetation Index (NDVI). Landslide susceptibility areas were mapped using the frequency ratio and weights-of-evidence methods. The accuracy of the landslide susceptibility maps generated from both methods is validated using the Area Under Curve (AUC). The estimation results of the AUC plot show that the susceptibility map using the frequency ratio model has an accuracy of 92,6% and the weights-of-evidence method has an accuracy of 90,1%.","PeriodicalId":31886,"journal":{"name":"Rekayasa Sipil","volume":"57 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90539173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Retarding Basin Design As Flood Countermeasures at Cicendo Bandung City 万隆市阻洪流域设计作为防洪对策
Rekayasa Sipil Pub Date : 2023-05-03 DOI: 10.21776/ub.rekayasasipil.2023.017.02.1
Wahyu Al'amin, Yati Muliati
{"title":"Retarding Basin Design As Flood Countermeasures at Cicendo Bandung City","authors":"Wahyu Al'amin, Yati Muliati","doi":"10.21776/ub.rekayasasipil.2023.017.02.1","DOIUrl":"https://doi.org/10.21776/ub.rekayasasipil.2023.017.02.1","url":null,"abstract":"The current solution Bandung City Government do to avoiding flood was building the retarding basin. The purpose of this research was to plan the retention basin’s discharge, volume and area. This research was conducted on Bima Street, Cicendo which is drained by Citepus River. The research data includes rainfall data from five rain posts, maps and existing river conditions. The analysis contains catchment area made from ArcGis program which result are 40 km2. Hydrological analysis produces the planned rain discharge for 100 years return period which is 20,22658 m3/s. Hydraulics analysis which is finding the discharge river existing. Basin discharge acquired from differences between rain discharge and river discharge then plan for inlet and outlet doors. Total capacity of retarding basin was 4360,5 m3. Inlet and outlet doors are planned each two doors with 2 meters width and 1 meter height.","PeriodicalId":31886,"journal":{"name":"Rekayasa Sipil","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88589400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Efek Larutan Asam Terhadap Kuat Tekan dan Penyerapan Mortar dengan Bahan Tambah Fly Ash 酸溶液对强压和吸收迫击炮的影响与飞灰添加剂
Rekayasa Sipil Pub Date : 2023-05-03 DOI: 10.21776/ub.rekayasasipil.2023.017.02.5v
Mufti Amir Sultan, Raudha Hakim, Kurniawan Kurniawan
{"title":"Efek Larutan Asam Terhadap Kuat Tekan dan Penyerapan Mortar dengan Bahan Tambah Fly Ash","authors":"Mufti Amir Sultan, Raudha Hakim, Kurniawan Kurniawan","doi":"10.21776/ub.rekayasasipil.2023.017.02.5v","DOIUrl":"https://doi.org/10.21776/ub.rekayasasipil.2023.017.02.5v","url":null,"abstract":"Mortar is a mixture consisting of fine aggregate and adhesive. This mortar serves as a filler or binder in the constituent parts of a construction, both non-structural and structural. In this study, the test object measuring 5x5x5 cm was used by using fly ash added from the PLTU Rum by 20% of the cement weight. This study aims to clarify the use of fly ash from PLTU Rum as an additive in mortar mixtures. The test object is immersed in an acid solution with a concentration of 2%, the duration of immersion is 30, 60 and 90 days. The addition of fly ash to the mortar mixture can increase the compressive strength by 23.32%. The longer the contact with the acid solution will decrease the compressive strength and increase the absorption of the mortar.","PeriodicalId":31886,"journal":{"name":"Rekayasa Sipil","volume":"40 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75155480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Nilai Indeks Kesiapan Program Modernisasi Irigasi pada Daerah Irigasi Sucen Jawa Tengah
Rekayasa Sipil Pub Date : 2023-05-03 DOI: 10.21776/ub.rekayasasipil.2023.017.02.13
Melfina Roselyn Kurnia, Ignatius Sriyana
{"title":"Nilai Indeks Kesiapan Program Modernisasi Irigasi pada Daerah Irigasi Sucen Jawa Tengah","authors":"Melfina Roselyn Kurnia, Ignatius Sriyana","doi":"10.21776/ub.rekayasasipil.2023.017.02.13","DOIUrl":"https://doi.org/10.21776/ub.rekayasasipil.2023.017.02.13","url":null,"abstract":"Modernization of irrigation systems plays a huge role in realizing a participatory irrigation management system oriented towards efficiency, effectivity, and sustainability of irrigation systems to support food and water security. This study aims to evaluate the modernization readiness of the Sucen Irrigation, referring to the five pillars of irrigation modernization as measured by the readiness index score (IKMI). The method used in this research is direct observation and interviews. The result from this study shows that Sucen Irrigation Area got a moderate category with a total score of 63.5 which the result for each pillar is 14.8 of the IKMI score for Water Availability, 17 for Irrigation Facilities and Infrastructure, 10.6 for the Irrigation Management System, 14.2 for Institutional Management, and 6.9 for the last pillar which is Human Resources Management. Therefore, the moderate category points to modernization should be postponed to improve the irrigation system within 1-2 years.","PeriodicalId":31886,"journal":{"name":"Rekayasa Sipil","volume":"25 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79044474","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Model Peluang Kecelakaan Mobil Penumpang pada Ruas Jalan Nasional Gempol Kabupaten Pasuruan 佩昆昆地区国家公路上的客车事故模型
Rekayasa Sipil Pub Date : 2023-05-03 DOI: 10.21776/ub.rekayasasipil.2023.017.02.16
Vicitra Pradyavita, M. Arifin, Sobri Abusini
{"title":"Model Peluang Kecelakaan Mobil Penumpang pada Ruas Jalan Nasional Gempol Kabupaten Pasuruan","authors":"Vicitra Pradyavita, M. Arifin, Sobri Abusini","doi":"10.21776/ub.rekayasasipil.2023.017.02.16","DOIUrl":"https://doi.org/10.21776/ub.rekayasasipil.2023.017.02.16","url":null,"abstract":"The increase in accidents is caused by a vehicle, humans, roads, and environmental factors. On the gempol national road in Pasuruan,Regency,0this;study;aims,to;identify;the;characteristics;of,car,drivers, roads, and opportunity models that cause accidents. Data analysis using Structural Equation Modeling (SEM) included 243 questionnaires of drivers who had experienced accidents. Road Characteristics based on user perceptions that focus on geometric conditions at the accident site are the most prevalent accident modeling results that affect accident intensity. If we want to reduce accident rates, we should prioritize addressing geometric conditions at accident sites, as well as socializing traffic awareness and installing signs in accident-prone areas.","PeriodicalId":31886,"journal":{"name":"Rekayasa Sipil","volume":"53 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79206481","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Analisis Efektivitas Kemampuan Pulih Mandiri Micro Crack pada Self-Healing Concrete 分析了自我治疗混凝土微裂纹修复能力的有效性
Rekayasa Sipil Pub Date : 2023-05-03 DOI: 10.21776/ub.rekayasasipil.2023.017.02.8
Erfin Setiawan, Y. Wahyuni, Nia Kartika
{"title":"Analisis Efektivitas Kemampuan Pulih Mandiri Micro Crack pada Self-Healing Concrete","authors":"Erfin Setiawan, Y. Wahyuni, Nia Kartika","doi":"10.21776/ub.rekayasasipil.2023.017.02.8","DOIUrl":"https://doi.org/10.21776/ub.rekayasasipil.2023.017.02.8","url":null,"abstract":"The development of Self-Healing Concrete technology is a solution to overcome anomalies in concrete structures such as Micro Crack and is a preventive measure to prevent concrete damage. This study analyzes the effectiveness of Self-Healing Concrete which has the ability to recover independently when Micro Crack occurs in exposed concrete. The ability to recover independently of micro cracks was analyzed using Laboratory-based Visual Research Methods (VRM). The results showed that the application of Bacillus Subtilis bacteria as a Healing Agent on exposed concrete was effectively used to overcome Micro Crack below 0.607 mm with self-recovery of 93.98% at the age of the test sample of 56 days. And the value of the ability to recover independently was strengthened by SEM-EDX data which showed the morphological structure of the development of mycobacterial spores that filled the Micro Crack cavity was Calcium Carbonate (Ca-K) compound.","PeriodicalId":31886,"journal":{"name":"Rekayasa Sipil","volume":"17 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87195634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evaluasi dan Monitoring Bangunan Ukur Debit pada Saluran Primer Kesilir Kecamatan Wuluhan
Rekayasa Sipil Pub Date : 2023-05-03 DOI: 10.21776/ub.rekayasasipil.2023.017.02.9
Denok Nurul Intifadah, W. Widiarti, Saifurridzal Saifurridzal
{"title":"Evaluasi dan Monitoring Bangunan Ukur Debit pada Saluran Primer Kesilir Kecamatan Wuluhan","authors":"Denok Nurul Intifadah, W. Widiarti, Saifurridzal Saifurridzal","doi":"10.21776/ub.rekayasasipil.2023.017.02.9","DOIUrl":"https://doi.org/10.21776/ub.rekayasasipil.2023.017.02.9","url":null,"abstract":"The most often problem that is usually occurred in the field is damage of discharge measuring building. In Kesilir’s primary channel, they are crumpweir dan cipoletti measuring structure that have decreased in fuction. This research was conducted by analyzing the discharge obtained from field data collection, wet cross-section area (A), flow velocity (v) and peilscal height (h). Callibration analysis of discharge measuring building is carried out by differentiating between the equation resulting from the graph using power function. The research result in the measurement differences of the upstream and downstream of the channel at two locations. The callibration coefficient of the crumpweir is 0.39 and the cipolleti is 0.72 respectvely.","PeriodicalId":31886,"journal":{"name":"Rekayasa Sipil","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87123527","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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