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INDONESIA
Inersia : Jurnal Teknik Sipil dan Arsitektur
Published by Universitas Negeri Yogyakarta
ISSN : 0216762X     EISSN : 2528388X     DOI : -
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
INERSIA is stand for INformasi dan Ekspose hasil Riset Teknik SIpil dan Arsitektur. This scientific journal is managed by the Department of Civil Engineering and Planning Education, Faculty of Engineering, Yogyakarta State University, in cooperation with the Persatuan Insinyur Indonesia (PII). It publishes and disseminates research results from lecturers and post graduate students from various universities in Indonesia, which has contributed to the development of science and technology, especially in the field of Civil Engineering and Architecture. INERSIA is published twice a year, in May and December.
Arjuna Subject : -
Articles 9 Documents
 1 
Search results for , issue "Vol. 21 No. 2 (2025): December" : 9 Documents clear
Physical Transformation of Local Residences into Homestays in Gampong Nusa Aceh Besar Suhaira, Haifa; Nareswari, Ardhya
INERSIA lnformasi dan Ekspose Hasil Riset Teknik Sipil dan Arsitektur Vol. 21 No. 2 (2025): December
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/inersia.v21i2.72266

Abstract

This research aims to enhance the potential of tourism amenities in Gampong Nusa, specifically focusing on homestays. The houses used as homestays possess significant local value and include permanent residences of individuals affected by the tsunami, which adds to their appeal as a physical attraction. Consequently, it is essential to study the physical transformation of local dwellings into homestays in Gampong Nusa, Aceh Besar. The research employs a deductive qualitative methodology, involving field observations and the collection of data on the physical transformation of homestays in Gampong Nusa, Aceh Besar through observation, documentation, and interviews with homestay managers. The study aims to describe the physical transformation process and identify the changes that occur in local dwellings when they are converted into homestays. This includes examining the transformation of residential houses at various stages: before becoming a homestay, during the transition, and after the conversion. Three types of houses are analyzed: heritage houses, residential houses, and heritage-permanent houses. The study identifies changes in space expansion, zoning, spatial elements, and functions. The most significant spatial expansion occurs in heritage houses, including the addition of three kitchen and bathroom spaces, a living room, a sleeping room, a homestay bedroom, and a warehouse. Spatial zoning transformation in heritage houses involves substantial changes in public, semi-public, and private zones, often resulting in mixed-use spaces within a single building. The addition of furniture elements is prevalent in ten houses that serve as research objects, particularly in homestay bedrooms. The spaces that have changed include bedrooms, family rooms, kitchens, and bathrooms. This study provides a detailed account of the physical transformations in residential houses converted into homestays in Gampong Nusa, Aceh Besar, contributing valuable insights into the adaptation process and its implications for tourism amenities.
Development of Component 3A Tourism in the Youtefa Bridge Area, Jayapura City, Indonesia Tandirerung, Bezaliel; Nuryanti, Wiendu
INERSIA lnformasi dan Ekspose Hasil Riset Teknik Sipil dan Arsitektur Vol. 21 No. 2 (2025): December
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/inersia.v21i2.73761

Abstract

Tourism development has significant impacts on both the economy and the environment. This study aims to analyze the conditions and development of the 3A components of tourism (Attractions, Accessibility, and Amenities) around the Youtefa Bridge area in Jayapura following its construction in 2019. The background of this research is the strategic role of the Youtefa Bridge in enhancing the tourism potential of Jayapura, which has experienced significant growth since its completion. A qualitative descriptive method is used in this study, involving in-depth interviews, direct observation, and document analysis to collect comprehensive data. The steps in this method include data collection, data reduction, data presentation, and conclusion, so the data obtained can provide a comprehensive picture of the impact of the Youtefa Bridge construction on local tourism. The research findings show that the construction of the Youtefa Bridge has significantly improved accessibility and expanded tourism potential. The main attractions include natural beauty such as mangrove forests and beaches, as well as cultural attractions in Tobati Village and Enggros Village. The bridge itself has become a significant attraction, offering stunning views. Improvements in public transportation and road conditions now support better tourist mobility. Additionally, amenities around the Youtefa Bridge have been enhanced, with improved accommodation facilities, restaurants, and public facilities such as toilets and parking spaces. This study emphasizes the positive impact of the Youtefa Bridge on tourism development in Jayapura and the importance of sustainable tourism management to maintain the area's appeal and ensure long-term benefits. Future research should focus on developing strategies to balance tourism growth with environmental conservation and cultural preservation.
Laica as a Cultural Identity of the Moronene People in Kampo Laea Hukaea, Bombana Regency, Southeast Sulawesi, Indonesia Hamasi, Adriyawan Jarsul; Subroto, T. Yoyok Wahyu
INERSIA lnformasi dan Ekspose Hasil Riset Teknik Sipil dan Arsitektur Vol. 21 No. 2 (2025): December
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/inersia.v21i2.77046

Abstract

The rapid advancement of technology, particularly in the field of building materials, has significantly influenced contemporary residential construction practices. Many people today prefer using manufactured materials over traditional local ones due to their practicality, availability, and perceived modernity. This trend is also evident among the Moronene tribe, one of the indigenous communities in Southeast Sulawesi. Over time, the Moronene people have gradually abandoned the use of local materials that once formed an integral part of their cultural heritage. This shift has led to a growing detachment among younger generations, who are becoming less familiar with traditional architectural knowledge—posing a threat to the authenticity and identity of the Moronene tribe. This study aims to explore the spatial characteristics of traditional Moronene houses in Kampo Laea Hukaea. Utilizing a qualitative method with an inductive approach, data were collected through direct field observations, with guidance from a gatekeeper to ensure culturally appropriate case selection. Findings from the study reveal that Moronene houses exhibit a linear spatial arrangement from front to back. The layout typically consists of three main sections: the patande or laica irai (front house), the botono (main house), and the dapura or laica ibungku (back house). The patande serves not only as a space for daily household activities but also as a venue for cultural events, such as meparamesi, a ceremonial stage in the traditional Moronene wedding. This dual function highlights the room’s cultural significance. The botono, located at the center of the house, is considered the core space for cultural life. It hosts various traditional ceremonies, including mosere wuu (traditional hair-cutting ritual), kawi’a (traditional wedding ritual), mate’a (mourning ritual), and mobasa-basa (traditional thanksgiving ritual), making it the cultural and communal heart of the home. At the rear lies the dapura, which supports both domestic functions and ritual preparations. Activities in this space include ceremonial bathing and organizing essential items for traditional events, reinforcing its role in preserving cultural practices. These three spatial divisions are consistently found across multiple homes in Kampo Laea Hukaea, indicating their significance as defining features of Moronene residential architecture. Despite the increasing adoption of modern construction materials, these traditional spatial patterns continue to reflect and preserve the cultural values of the Moronene community.
The Integration of Spatial Layouts in the Abdi Dalem Houses in Jeron Beteng, Keraton District, Yogyakarta Hutomo, Dhemas Aryo; Rahmi, Dwita Hadi
INERSIA lnformasi dan Ekspose Hasil Riset Teknik Sipil dan Arsitektur Vol. 21 No. 2 (2025): December
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/inersia.v21i2.78851

Abstract

The abdi dalem house is a residence built and provided for the royal servants of the Yogyakarta Palace, featuring the traditional Javanese spatial configuration spread throughout the Jeron Beteng area. In recent times, the Jeron Beteng area has undergone significant transformations in response to modern developments, leading to the flexible reconfiguration of spaces to meet contemporary needs. This study aims to examine the evolving spatial patterns in the residences of abdi dalem in the present day. This holds significant importance in understanding the reflections of Javanese vernacular transformation.. The study focuses on two abdi dalem houses in the Panembahan district, known for preserving the original condition of these traditional homes. This qualitative research employs a case study approach, with data collection conducted through purposive sampling, observations, and interviews. Photographic documentation and floor plan sketches were utilized to strengthen the data, alongside literature reviews focusing on cultural, ritual, and traditional aspects of Javanese houses. The study uses two abdi dalem houses that still retain their original façade as case studies. The analysis of spatial integration is performed qualitatively, covering variables such as socio-cultural aspects, spatial layout, building orientation, building functions, land transformation, zoning, spatial circulation, and the integration of spatial patterns. The findings reveal that the integration of spatial patterns in abdi dalem houses for modern-day flexibility is influenced by the evolution of time and the growth of family members. This adaptation occurs without compromising the architectural heritage values of the house, though it does result in changes to the spatial patterns.
Performance Assessment of Paving Blocks with Tannery Sludge as a Partial Cement Replacement Zhafirah, Athaya; Mulyana, Subhan
INERSIA lnformasi dan Ekspose Hasil Riset Teknik Sipil dan Arsitektur Vol. 21 No. 2 (2025): December
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/inersia.v21i2.84458

Abstract

The construction industry faces increasing pressure to adopt more sustainable practices, particularly in reducing the environmental impact of cement production, which is responsible for significant CO₂ emissions and the depletion of natural resources. One promising strategy is to partially replace cement with industrial waste materials that possess cementitious properties. This study examines the potential of tannery sludge, a hazardous byproduct of the leather tanning process, as a partial substitute for cement in the manufacturing of paving blocks. The sludge contains valuable oxides such as CaO, Al₂O₃, and Fe₂O₃, which can contribute to the binding characteristics required in concrete applications. An experimental approach was conducted to evaluate the performance of paving blocks containing 0%, 1%, 3%, and 5% tannery sludge by weight of cement. Tests included compressive strength, wear resistance, water absorption, resistance to sodium sulfate, and chemical composition analysis using X-ray fluorescence (XRF). The results revealed that all sludge-containing mixtures maintained compressive strength values exceeding the minimum threshold for class B paving blocks, making them suitable for moderate-load applications such as parking areas and pedestrian pathways. Wear resistance results placed all specimens in class A, indicating high surface durability. However, increased water absorption was observed with higher sludge content, potentially due to the porous nature of the sludge. The sodium sulfate resistance test highlighted the need for further enhancement, as weight fluctuations indicated vulnerability in chemically aggressive environments. XRF analysis confirmed the compatibility of the sludge composition with cement standards. In conclusion, tannery sludge demonstrates technical feasibility as a sustainable alternative to cement in the production of paving blocks. Its use offers environmental and economic advantages, though further research is needed to optimize performance and ensure long-term durability under various conditions.
Assessing the Performance of PNP Reservoir Based on Short-Term Rainfall Data in the Upper Kuranji Watershed, Padang, Indonesia Masdaf, Nofra; Fauzan; Bambang Istijono; Revalin Herdianto
INERSIA lnformasi dan Ekspose Hasil Riset Teknik Sipil dan Arsitektur Vol. 21 No. 2 (2025): December
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/inersia.v21i2.85199

Abstract

This study was conducted to assess the performance of the PNP Reservoir in managing water resources as well as reducing flood risk in the Batu Busuk Sub-watershed, which is located in the upstream part of the Kuranji watershed, Padang City. The uniqueness of this study lies in the comprehensive approach that combines IDF analysis with three methods (Talbot, Sherman, and Ishiguro), flood discharge estimation through the Rational and Nakayasu SUH methods, and modeling of reservoir inflows and outflows using the Muskingum flood routing method. Based on the results of the IDF analysis, the highest rain intensity during the two-hour duration was recorded at 27.22 mm/hour (Talbot), 24.67 mm/hour (Sherman), and 23.49 mm/hour (Ishiguro). Before the reservoir was constructed, the peak flood discharge reached 0.33 m³/sec at 0.35 hours. The simulation results showed that the reservoir was able to reduce the peak discharge by 0.57% and caused a delay in the peak flow of 0.6 minutes. This finding shows that the PNP reservoir contributes positively to flood control, although the efficiency of the reduction is still limited. Overall, the results of this study can serve as an important reference in the design of adaptive reservoirs in areas characterized by steep topography and high rainfall, and emphasize the role of reservoirs as part of sustainable flood mitigation infrastructure in tropical urban areas.
Analysis of The Influence of Management, Technical, and Digitalization Factors on Cost Performance through Green Shorebase Performance Based on Value Engineering Shalwa An-nisa Addawiyah; Agus Suroso
INERSIA lnformasi dan Ekspose Hasil Riset Teknik Sipil dan Arsitektur Vol. 21 No. 2 (2025): December
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/inersia.v21i2.85387

Abstract

The global maritime sector contributes around 2.5% of total CO2 emissions, the majority of which originate from shipping and port operations. Shorebase is a port that plays an essential role in the oil and gas sector, but its logistical activities add significantly to overall port emissions. The implementation of green ports at shorebase is a method and resolve to emphasize the importance of a safe environment. This study analyzes the influence of management, technical, and digitalization factors on cost performance in a green shorebase project using Value Engineering (VE) and Life Cycle Cost Analysis (LCCA). Results show the technical aspect has the most significant impact at 58%, followed by management (20.6%) and digitalization (20%). Green shorebase performance contributes 97% to cost performance. VE implementation generated operational cost savings of IDR 1,135,948,542 or 7% of initial costs, exceeding efficiency benchmarks (Ekanayake et al., 2018). LCCA results indicate the project is feasible, with a Benefit Cost Ratio of 3.33, NPV of IDR 25,989,577,423, IRR of 49% (above the 20% discount factor), and a payback period of 3.93 years. These findings confirm that VE and LCCA are effective in optimizing costs and improving project feasibility. This research serves as a reference for applying green and smart port concepts in Indonesian shorebase projects.
Comparative Analysis on Structural Behaviour of Steel Structure Using Different Types of Bracing Due to Dynamic Earthquake Loads Nursani, Rosi; Al Huseinny, M Syarif; Hidayanto, Hidayanto
INERSIA lnformasi dan Ekspose Hasil Riset Teknik Sipil dan Arsitektur Vol. 21 No. 2 (2025): December
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/inersia.v21i2.85479

Abstract

Earthquake-resistant steel structures must have adequate strength and serviceability to withstand and distribute seismic forces throughout the structure. The structure should not be too stiff or too ductile. High structural stiffness causes small deformations in the structure and affects the absorption of seismic energy. On the other hand, structures that are too flexible can cause deformations beyond the structural limits. One effective approach to enhance earthquake resistance in high-rise buildings is the incorporation of lateral bracing. This study outlines a numerical simulation of a five-story steel building, employing various bracing types using specialized software. The objective is to assess the structural behavior of the building both with and without bracing, specifically analyzing three configurations: V-bracing, inverted V-bracing, and two-story X-bracing. Key aspects of the structural behavior examined include natural periods, internal forces, inter-story drift, and overall stiffness. All models maintain consistent dimensions for structural elements, loading conditions, and the placement of bracing, positioned in the building's weak direction. A dynamic analysis was conducted utilizing the response spectrum method. The findings reveal that structures equipped with inverted V-bracing and two-story X-bracing exhibit superior performance compared to those with V-bracing, while the V-bracing still offers enhancements over structures lacking any bracing. 
Sediment Transport Modeling at the Bogowonto River Bend Using HEC RAS 6.6 Purwantoro, Didik; Yekti, Mawiti Infantri; Ratnaningsih, Rossita Yuli; Rofi’ah, Nanda Nur; Mayra, Farah
INERSIA lnformasi dan Ekspose Hasil Riset Teknik Sipil dan Arsitektur Vol. 21 No. 2 (2025): December
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/inersia.v21i2.91818

Abstract

River bend erosion is a major concern for river engineers because it affects channel stability and navigation safety. Erosion along the outer bank and deposition along the inner bank are the primary processes responsible for the meandering pattern of rivers. This study investigates the effect of discharge variations on scour depth in a meandering reach of the Bogowonto River using numerical modeling with HEC-RAS 6.6. Simulations were carried out for six discharge scenarios corresponding to return periods of 2,5, 10, 20, 50, and 100 years (Q2, Q5, Q10, Q20, Q50, and Q100). The historical rainfall data collected from 2002 to 2021. Limantara Unit Hydrograph used for rainfall-runoff modelling. The HEC-RAS simulation results of the 2-year return period (Q2) reveal that sedimentation occurs at five points along the Bogowonto River bend in Purworejo District. In particular the greatest accumulation occurred at the apex of the bend (STA 17), where the bed sediment thickness reached 4.175 m at the Q100 discharge. The simulation results show a uniform sedimentation pattern across the entire bend cross-section, likely due to model limitations that prevent detailed representation of cross-flow patterns.

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