Detailed Engineering Design Research Articles

Structure Analysis of Hybrid Marine Renewable Energy Platform

Abstract The Pilot Project Energy Laut Hybrid for coastal communities utilises a hybrid-based tripod pontoon structure. Hydrodynamic analysis was conducted using Computational Fluid Dynamic (CFD) simulations and Detail Engineering Design (DED) testing at the Hydrodynamics Laboratory of Indonesia (LHI). This research aims to conduct a structural analysis of the tripod pontoon frame, including redesigning and comparing the strength between the existing and modified designs. An analysis using the software SACS V15.1 was employed to obtain unity check values and stress distribution. The analysis revealed that the unity check values for the existing model, with airy wave01, airy wave02, stokes wave01, and stokes wave02, were 0.508, 0.498, 0.509, and 0.5, respectively. In contrast, the unity check values for the modified model, with airy wave01, airy wave02, stokes wave01 and stokes wave02, were 0.827, 0.81, 0.827, and 0.813, respectively, indicating a 63% increase in unity check for the modified model. The largest shear stress was observed on member A5-1-A5-2 in both models, which still complies with the API RP 2A-WSD standard. Additionally, the modified model was 21% lighter than the existing model, with Z shear stress increasing by 63% for both airy and stokes wave types.

Avoiding Flood by Improving Cross-Sectional Capacity through River Normalization

Bekasi is one of the regions in Indonesia that often suffer from flooding. To overcome flooding problems in the Bekasi area, the Ciliwung Cisadane River Basin Center has begun a normalization project along the Bekasi River. This research aimed to evaluate the Bekasi River's cross-sectional capacity both before and after normalization. The analysis focused on the section where the Cileungsi and Cikeas rivers converge to the Bekasi weir. In this research, secondary data were employed, such as national digital elevation model data, detailed engineering designs of Bekasi River flood control activities, and rainfall data from the Cibinong Station that covers the period from 2006 to 2020. The result from planned flood discharge with the Nakayasu synthetic unit hydrograph method for a return period of 25 years on the Bekasi River was obtained at 665.81 m3/s. The results of hydraulic analysis before normalization with the HEC-RAS application show that flooding occurred at 102 out of 116 stations, with capacities of river cross-sections ranging from 453.49 m³/s to 665.71 m³/s at these overflow stations. Following the river normalization process, the cross-sectional capacity at all Bekasi River stations can accommodate flood discharge without any instances of overflow.Keywords: Flood, HEC-RAS, Nakayasu, Normalization, Rainfall.

Design Micro-Hydro Power Plant Water Resources System for Small Medium Enterprise Rice Mill in Nagari Kamang Hilia Agam

Processing rice products into rice requires further processing, where the grain harvested from farmers is processed into rice. The Nagari Binaan Community Service team from Padang State University will later develop this process. Farmer groups say that the availability of continuous and cheap electricity is their obstacle in producing good and cheap rice products. Counseling and assistance in making civil buildings capture turbulence water micro-hydro power plants is a solution to partner problems offered by the community service team of the Nagari program assisted by Padang State University. The output of the Nagari Fostered Program will be used to build a 5000-watt capacity power plant, supporting the need for free and environmentally friendly electricity. This aligns with the government's renewable energy program for 2030, which aims to produce 25% of the national electricity from renewable sources. This program is planned for 3 (three) stages, where the first year is mapping and detailed engineering design in the form of reports and design drawings. The second year is in the form of civil construction, and the third year's target is the installation of electrical machines and panels for commissioning. There will be training for partners, such as farmers in Kanagarian Kamang Hilia, Agam.

Optimalisasi Desain Struktur Gedung Interdisciplinary Engineering (IDE) – Fakultas Teknik Universitas Indonesia dengan Memanfaatkan BIM (Building Information Modelling)

Project design is a step in the construction process that determines the technical requirements to be applied when the project is constructed. BIM (Building Information Modeling) is a form of technological innovation used in project design. BIM (Building Information Modeling) has become the main factor for increasing efficiency and accuracy; using BIM, everything related to design, construction, scheduling, and costs can be integrated into one digital platform that all stakeholders can access. In this paper, the structural planning optimization of the Interdisciplinary Engineering (IDE) Building - Faculty of Engineering, University of Indonesia, will be carried out. This building planning refers to (SNI-2847-2019) concerning Structural Concrete Requirements for Buildings and (SNI-1726-2019) concerning Procedures for Planning for Earthquake Resistance of Structures. Outputs are generated through superstructure and substructure plans, the design of foundation structures, columns, beams, and plates, 2D Detail Engineering Design (DED), 3D modeling, and construction management plans in the form of Budget Plans and scheduling.

ANALYSIS OF THE POTENTIAL DEVELOPMENT OF MICRO HYDRO POWER PLANT (PLTMH) IN ABENAHO DISTRICT, YALIMO REGENCY

This study examines the feasibility of the location for the construction of a micro hydro power plant (PLTMH) in Landikma Village, Abenaho District, in relation to the district government's plans. The specific objectives of this study are to determine the potential location of a PLTMH based on the applicable technical principles, as well as to compile a feasibility study for the construction of a PLTMH to support lighting/electricity services. The survey method was applied to identify the description of the existing conditions, with reference to the criteria for PLTMH development. Data analysis was carried out using quantitative and qualitative methods. Based on the research results, the PLTMH construction site in Landikma Village, Abenaho District, Yalimo Regency meets the eligibility to build a 177kW micro-hydro power plant. The river discharge at the location of the development plan is 0.950 m3/s, so the result of calculating the potential electric power generated by the PLTMH is 326.2 kW. This electrical energy is capable of meeting the lighting needs of 521 houses, assuming that each house gets 450 watts of electric power. Strategic environmental studies need to be carried out to ensure that this development does not have the potential to cause negative impacts on the environment. The PLTMH development process must also be accompanied by a comprehensive Detail Engineering Design (DED). In addition, local communities must also be involved in the process of reviewing the development, evaluation and supervision to ensure the sustainability of development and the sustainability of natural resources around the PLTMH construction site. Keywords: Potential Study, power plant, micro hydro, turbine, river.

Detail Engineering Design (DED) pada Struktur New Siloam Hospital Surabaya

The construction of health facilities is part of national development. Therefore, many health facility development projects, such as hospitals, continue to be carried out in various regions. One of them is the construction of the New Siloam Hospital in Surabaya. This article aims to understand the concept of detail engineering design on the building structure of New Siloam Hospital. Field surveys and data collection are the methods used to obtain information related to hospital construction projects. There are several differences between field data and work drawing data that has been created. Some of these differences include details on the reinforcement and casting volume. Therefore, it is necessary to carry out further evaluation of field data with work drawing data so that the project can proceed according to initial planning.

Perencanaan Ulang Rumah Susun Tenaga Pendidik Universitas Gadjah Mada dengan Konsep Building Information Modeling (BIM) 5D

The innovative development in construction technology has introduced a system called Building Information Modeling (BIM), which can facilitate processes from pre-construction to post-construction. Therefore, this research focuses on the redesign of the University of Gadjah Mada's Faculty Housing Tower using the integrated BIM concept, based on structural analysis with ETABS and modeling with Tekla Structures. The redesign is carried out according to SNI 2847-2019 for concrete building structures, SNI 1727-2020 for loading requirements, and SNI 1726-2019 for seismic resilience standards. This redesign produces a structural analysis to assess the structural feasibility of the building. The 3D design modeling is performed using Tekla software, which can generate 2D designs for Detail Engineering Design, as well as provide the necessary volume of work for cost estimation (RAB calculation). Additionally, the software allows for scheduling and work simulation. The redesign of the University of Gadjah Mada's Faculty Housing Tower results in a budget plan of IDR 24,274,962,257.00, calculated using Quantity Take Off from the Tekla Structures software. The scheduling and work implementation simulation for the structural components are also done using Tekla Structures software. The duration of this redesign project is estimated to be 4 months and 2 weeks, starting from the preparation phase to the completion of the roof structure

Traffic Performance Optimization at Batanghari Intersection Using Microsimulation

The Batanghari 1 Bridge serves as a vital link connecting Jambi City and Muaro Jambi Regency. Currently, the traffic density at the Batanghari intersection is notably high, particularly during peak hours, resulting in frequent traffic jams. To address this issue, the Perencanaan dan Pengawasan Jalan Nasional (P2JN) and Planning Consultants executed a Detailed Engineering Design (DED) Planning for the Duplication of the Batanghari 1 Bridge in 2021. The Duplication DED transformed the original intersection into a combination of an intersection and a U-turn. However, a notable challenge emerged during rush hours, especially for Jalan KH.A. Majid, where a U-turn is essential to cross the Batanghari Bridge. In this study, a traffic microsimulation was initiated at the Batanghari intersection. Using PTV Vissim software, microsimulations were conducted under three scenarios: Existing Condition, Detailed Engineering Design (DED), and an Alternative scenario, which involved incorporating a Flyover for KH.A. Majid Road towards Batanghari Bridge. Furthermore, traffic microsimulations were conducted to anticipate conditions over the next two decades. The analysis involved microsimulation using Vissim software, encompassing calibration, trial and error validation of the intersection model considering driver behavior, and GEH tests on traffic volume. The microsimulation results at the Batanghari intersection revealed that the alternative model effectively reduced queues, minimized delay times, and improved overall travel time compared to the proposed model.

Redesain Jalan Akses Dermaga IHM Dengan Implementasi Building Information Modelling

The rapid development of Indonesian construction, especially in the capital city of the Nusantara, which is undergoing intense development, requires all parties involved to work effectively and efficiently. A method is needed to face these challenges. The BIM method is considered superior in terms of effectiveness and efficiency compared to conventional methods. In the PT ITCI Hutani Manunggal dock access road construction package, the planning is still using conventional methods. So that the package is re-planned by implementing BIM. This research aims to redesign the horizontal and vertical alignment planning of roads located in Penajam Paser Utara Regency with the implementation of Building Information Modeling. In the research process, the data analysis technique uses the BIM method which consists of 4 stages, namely modeling of plan traces and profiles, horizontal alignment redesign, vertical alignment redesign, and 3D BIM visualization. This research uses secondary data, namely detailed engineering design drawings and lidar contours. The redesign results obtained 27 Intersect Points and 72 Vertical Intersect Points made road geometric adjustments in order to meet the minimum permitted standards. The implementation of BIM provides a clear initial picture of the form of road infrastructure that is built in an integrated manner.

Comparison of Using Conventional Estimating and Sketchup Pro for Bill Quantity Takeoff Process

Departing from academic anxiety that the construction industry in Indonesia has made rapid progress with the adoption of computing technology and methods in recent years. Increasing infrastructure development encourages construction actors to effectively and efficiently improve project quality. However, the role of the quantity surveyor becomes crucial in facing challenges such as manual quantity picking which is prone to errors and cost estimation that is difficult to do based on rough schematic design. In the context of traditional construction projects, quantity lists are arranged based on 2D drawings, but the use of 3D models has diminished since the adoption of BIM. Sketchup, as a 3D modeling software, and its extension Quantifier Pro provide a solution by combining 3D models to produce accurate quantity takeoff calculations on the Bill of Quantity. This research aims to develop methods to improve the quantity accuracy of elements of an incomplete or incorrect Sketchup model, in the hope of reducing modeling time, improving quantity retrieval performance, and making Sketchup-based cost estimation more effective and efficient in the context of construction. This research method involves 3D modeling using the Sketchup Pro application, using secondary data in the form of Detailed Engineering Design (DED) working drawings. Volume calculation in the Bill of Quantity is done with the help of Sketchup Pro software. The research location is in the Mullberry Cluster residential project, Bekasi City, West Java. The house building in this project was chosen as an object of comparison between conventional calculation methods and calculation methods using Sketchup Pro software. The main focus is to overcome the challenges of manual quantity picking and cost estimation from rough schematic design, emphasizing the crucial role of quantity surveyors. The results showed that the use of 3D models in Sketchup can increase the accuracy of cost estimation and reduce modeling time. The conclusion of the study confirms that Sketchup as an effective alternative solution in increasing efficiency and accuracy in the construction process, especially in the context of taking the quantity of architectural work elements, contributes positively to the development of more sophisticated cost estimation methods in the Indonesian construction industry.

DESIGN REVIEW ANALYSIS OF THE USE OF STONE HEAPS FROM STONE EXCAVATIONS IN THE PROBOLINGGO – BANYUWANGI TOLL ROAD CONSTRUCTION PROJECT SECTION 3

In constructing a toll road, the road structure will be carried out by constructing embankments on the road. However, in practice it often causes elevation differences between the two land surfaces, thereby increasing the risk of landslides. The objectives of the research are 1) Identifying the impact if Common Borrow Material (CBM) embankment work is replaced by rock embankment from excavation results, 2) Determine the value engineering process steps related to completing alternative design selection if there are differences between the actual Detailed Engineering Design in the field and 3) Determine the strategy and design optimization for volume differences which have implications for additional costs and project implementation time. The research uses a combination of quantitative and qualitative research methods. The data analysis technique is carried out using the Zero-one and Cost Analysis methods. The research results prove that 1) Implementation of the design review method for changes in common borrow material dumping work requires innovation to reduce cost elements and match performance and quality. 2) Solving problems using the design review method in the civil works construction phase where the Detail Engineering Design and actual field conditions have different stages of value engineering analysis. 3) Based on function analysis to optimize cost savings for work items using design review, a Preliminary Design according to DED Rp. 4,068,258,782,670 and Design after RE Rp. IDR 3,987,286,153,268 so the cost reduction after implementing the design review for the work of piling stones from stone excavation results is IDR 80,972,629,402.

Analysis Value Engineering at Work Apartment Building Wall

It was Optimizing resources to analyze cost efficiency in implementing construction projects. One method that can be used for resource optimization is value engineering (VE). Value engineering (VE) as a management technique to determine the efficiency between the cost and performance of a product or project and stay on appearance, quality and maintenance. Then value engineering is applied to the construction of apartment buildings to get cost efficiencies from the initial budget planning. This study aims to determine the effectiveness of value engineering in the construction of apartment buildings, especially in-wall installations. The VE method consists of five stages: Information stage, the creativity stage, the analysis stage, the development stage, and the presentation stage. Information stage, data collection in the form of cost planning, detail engineering design, work plan and terms. Based on the data obtained, the total contract value for the apartment building is Rp. 87,328,000,000. wall installation as one of the highest cost contributors. There are two alternative recommendations, namely sandwich panel walls and precast walls. The analysis found that the sandwich panel wall has the most efficient value, namely the total RAB value of 2.5% from the initial plan.

Analysis of Bearing Capacity and Foundation Settlement of Luan Linggi Bridge, Aceh Province, Indonesia

A bridge is a structure made to cross a ravine or obstacle such as a river, railroad, or highway. The bridge consists of an upper structure and a lower structure. The upper structure of a building must be able to be supported by its own lower structure, namely the foundation. There are two types of foundations, namely shallow foundations and deep foundations. The planning of a foundation is said to be correct if the load that is forwarded by the foundation to the ground does not exceed the strength of the soil. Luan Linggi Bridge is one of the bridges that uses deep foundations in the form of pile foundations. This bridge is located in Luan Linggi Village, East Simeulu District, Simeulue Regency, Aceh Province, Indonesia. Due to the 2004 Tsunami disaster, the bridge pillars were broken and the abutments shifted, so the bridge could no longer be used. So, the bridge was redesigned in 2015 and rebuilt in 2021. This study aims to determine the value of the bearing capacity of a single foundation, the value of the bearing capacity of the group foundation, and the foundation settlement. This research uses N-SPT data, soil physical and mechanical properties, and detailed engineering design (DED). The method used to calculate the bearing capacity of the foundation is the Luciano Decourt method, while the single foundation settlement uses the Vesic method. The results obtained from this research are the bearing capacity and settlement value of the pile foundation with a diameter of 40 cm and a depth of 22 m. The ultimate bearing capacity value of the single foundation obtained is 375,228 tons, the permit bearing capacity value of the single foundation is 125,076 tons, the bearing capacity value of the group foundation obtained is 5887,727 tons. The elastic settlement value of the foundation using the Vesic method is 2,88 cm, and the settlement value of the group foundation is 8,8 cm.

Analysis of service quality in engineering design department through SERVQUAL framework

This paper aimed to explore the application of SERVQUAL in assessing the performance of in-house detailed engineering design in an engineering management firm. The goal is to evaluate service quality and identify gaps between customer expectations and perceptions across the five service quality dimensions. Results show that customers are dissatisfied with the department's service quality, and negative gaps exist across all 22 questions. Improvements in reliability, assurance, and responsiveness are recommended to enhance customer satisfaction. The study demonstrates a strong correlation between service quality dimensions and contract retention, highlighting the importance of improving service quality for long-term business success.

Perancangan Kebijakan Sistem Ketenagalistrikan Kawasan Institut Teknologi Kalimantan

The Kalimantan Institute of Technology (ITK) already has 17 study programs and 3002 active students until 2021 and is projected to have 20 study programs by 2025. However, geographical location of ITK affect ITK facilities readiness that later supporting tridharma activities to be carried out perfectly. The Mechanical, Electrical and Plumbing System (MEP) at the ITK Campus needs to be designed with a sustainable design in order to accommodate the needs of electricity, sound, air conditioning, clean water, and dirty water on the ITK Campus until 2025. This study aims to design a sustainable MEP design for distribution of electricity especially in lightning protection in order to meet the characteristics of safe, reliable and appropriate design. The stages involved include 8 (eight) processes, namely: 1) data collection and design of the existing MEP, 2) projecting the growth of the academic community and equipment needs until 2025, 3) reviewing the existing MEP system as the existing protection system, 4) calculation of the suitability of the existing MEP system based on projected needs, SNI and SPLN, 5) planning for improvement of existing systems and plans for developing MEP systems, 6) making working drawings of the MEP system, 7) drafting Bill of Quantity MEP, and 8) MEP budgeting. This research is expected to produce output in the form of MEP planning drawings that are recommendation of detailed engineering design which are documented in strategic policies through the rector's regulation. This research is aimed to be used as a reference for MEP design for ITK development in the future development.

Pemodelan 3D Jembatan Lengkung, Studi Kasus Jembatan Bukit Sulap, Menggunakan Software Autodesk Revit

Infrastructure is an essential sector in a country, and infrastructure development reflects the country's progress. Infrastructure development is a priority, but the implementation of infrastructure projects needs to pay attention to time, costs and quality. Building Information Modeling (BIM) has the potential to minimize errors and increase efficiency. BIM is a method that was originally applied to the AEC (Architecture, Engineering and Construction) industry. BIM technology makes it possible to create 3D building models that contain information, analysis of work volume calculations, scheduling, and cost calculations. There is several software that applies BIM technology such as Autodesk Revit, Autodesk Advanced Steel, Tekla Structures and Navisworks. BIM technology has been widely applied in construction projects in Indonesia, be it buildings, roads or bridges. In this research, modelling of a steel truss bridge with an arch type was carried out using Autodesk Revit software. This research was conducted to determine the capabilities and limitations of Autodesk Revit software in modelling arch-type steel frame bridge structures. The modelling in this research uses DED (Detailed Engineering Design) image sources for the Bukit Sulap Bridge project, which were obtained from the PUPR Department of Lubuklinggau City. The modelling carried out is in the form of steel frames, bracing, girder beams and bridge connections.

PENGEMBANGAN WISATA SELAM DI BANGGAI KEPULAUAN

Banggai Islands Regency is located in Central Sulawesi Province. The area has martime potencies in snorkeling and scuba diving that can be developed further. This study aims to plan the development of diving tourism in the Banggai Islands. The secondary data was used with analysis of descriptive-qualitative. The results showed that the development planning of diving tourism in Banggai Islands has been stated in the Master Plan for Tourism Development of Banggai Kepulauan (Rippkab) and followed by the preparation of Detail Engineering Design (DED). In accordance with the objectives, vision, and mission to be achieved, its implementation must involve relevant stakeholders. The actualization of the plan suppose to be carried out through the collaboration and synergy of tourism actors to avoid the overlapping.

Planning of Detailed Engineering Design (DED) for the Tourist Area Around Bukit Lembah Subur Village Lake in Pelalawan Regency Based on Community Involvement

Recreation or traveling is one of human's inner needs. We can use anything that has tourism potential as a tourist destination. The artificial lake in the Bukit Lembah Subur Village has the potential to be developed into a tourist destination. In designing tourist attractions, detailed engineering design (DED) is required to facilitate the work of building tourist attractions. The aim of this service is to design and also create a DED for the artificial lake tourist area in Bukit Lembah Subur Village. The method used is through observation, discussion, planning and output help to develop tourist areas. The result of community service activities is that they can complete the DED for the artificial lake tourist area in Bukit Lembah Subur Village so that it can help with the planning and development of the tourist area.

The GENEAP project: digitalising and automating planning of district heating and cooling

The Swiss Energy Strategy 2050 implies a transformation of the provision of thermal energy services (heating and cooling) to become CO2 neutral, district heating and cooling (DHC) are an important solution, which is technically challenging to design and whose implementation entails certain risks for investment. The GENEAP (Geospatial Analysis and Planning) project developed a software that applies automation and digitalisation to address this barrier and to apply scientific research to support the work of practitioners. The software Thermal Energy System Simulation Assistant (TESSA) increases reproducibility and decreases errors, and thereby reducing overall costs. We introduced innovative algorithms for modelling heat and cooling demand, thermal energy supplies, and the cost of thermal network technologies under different retrofit and climate change scenarios. We developed graph theory-based algorithms for computationally efficient routing of thermal network pipes. The goal of the GENEAP project was to validate the models and to establish how practitioners would find value in such a tool. Through workshops and interviews we established the need for digital tools due to the rapidly increasing need for new projects, the complexity and long time frames of projects, and the limited number of available experts to do this work. We found a gap between the high level energy strategy (Plan Directeur Energetique) and the detailed engineering design stage. In between these two stages we find the need for a flexible approach that can integrate cities and societies needs into the engineering design with non-energy requirements (e.g. political context, urban constraints and opportunities, etc).

Rekomendasi Rencana Anggaran Biaya dari Audit Keselamatan Jalan Tahap Detail Engineering Design (DED) pada Jalan Nasional Provinsi Jambi

From 2016 – 2018 in Jambi province there were 3,543 traffic accidents, with 1,085 deaths. What causes traffic accidents is caused by three factors, human factors themselves, vehicle factors and road infrastructure factors. To reduce the occurrence of traffic accidents, you can eliminate or reduce the causes of traffic accidents, such as improving the safe condition of road infrastructure. The aim of this research is to calculate recommendations for budget plans from the results of road safety audits at the detailed engineering design (DED) stage, totaling six detailed engineering design (DED) documents on Jambi province national roads. This research uses road safety audit guidelines Pd 03 – 2019 – B. From the results of the analysis, the percentage between the safety cost recommendation results compared to the construction cost design (owner estimate) at DED 1 = 6.17%, DED 2 = 0.93%, DED 3 = 16.13%, DED 4 = 7.33%, DED 5 = 0.75% and DED 6 = 8.83% and the combined percentage obtained is 7.05%. Thus, a detailed engineering design (DED) still requires attention in producing a detailed engineering design (DED) that is oriented towards road safety and the costs of physical implementation of the results of road safety recommendations.