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INDONESIA
Inersia : Jurnal Teknik Sipil dan Arsitektur
ISSN : 0216762X     EISSN : 2528388X     DOI : -
Core Subject : Engineering,
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 312 Documents
Wayfinding Analysis for Evacuation Optimization with Urban Network Analysis in Disaster Preparedness School KB TK Masjid Syuhada Setyawan, Siti Luzviminda Harum Pratiwi; Syafii, Nedyomukti Imam
INERSIA lnformasi dan Ekspose Hasil Riset Teknik Sipil dan Arsitektur Vol. 20 No. 1 (2024): May
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/inersia.v20i1.71833

Abstract

The existence of evacuation routes is one of the most important elements in disaster management because it will determine the smoothness of the rescue process during a disaster. An evacuation route is a route to an assembly point or exit that is assumed to be a safe space. Wayfinding is the process of moving from one point to another within the closest or fastest distance. In relation to the evacuation process, wayfinding will show the movement from a point, which in relation to buildings can be a specific space, to an exit or assembly point. As one of the disaster preparedness schools in Yogyakarta's Special Region, Masjid Syuhada Kindergarten was chosen as the site of the research. It is a complex of schools ranging from playgroup, kindergarten, elementary school, to junior high school, all of which are connected by the Syuhada Mosque.  The analysis of evacuation routes in the kindergarten was conducted using Urban Network Analysis (UNA). UNA is used as a method to determine the effectiveness of providing evacuation routes in a building area because it can analyze trips between points, called origin and destination. Of the various analyses that UNA can perform, this research uses the closest facility analysis. In this study, the origins were all the class in the kindergarten which placed at the door as the open access and in the middle of the class if the class have two doors; while the destinations were the stairs which heading to assembly point. The conclusion is reached after analyzing the network that connects the origin of the class to the destination of the stairs, which is connected to the assembly point.
The Mechanism of Rainfall-Induced Landslide Around Railway Tracks in Central Java Province, Indonesia Octaviarini, Ika Sakti; Fathani, Teuku Faisal; Hardiyatmo, Hary Christady; Amalina, Anisa Nur; Erzagian, Egy
INERSIA lnformasi dan Ekspose Hasil Riset Teknik Sipil dan Arsitektur Vol. 19 No. 2 (2023): December
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/inersia.v19i2.66835

Abstract

Landslide is one of the most disastrous natural hazards in Indonesia, causing significant fatalities and economic losses. Landslides can be triggered by several factors, such as rainfall, earthquakes, soil conditions, and others, where each landslide event has its own triggering and controlling factors. A progressive landslide occurred on the Central Java railway line which resulted in damage to the double-track railway as a transportation infrastructure. The objective of this paper is to understand the process and triggering factors of the landslide. Information was collected through field investigations and measurements based on drilling results at 3 points, geophysical surveys at 5 lines, and laboratory testing of several soil samples. Geological and geotechnical settings, topography, lithology, hydrogeology, and rainfall data of the area were analyzed. Aerial photographs and other remote sensing data were used to evaluate and discuss the information. Landslides in the study area occurred in stages, starting with the formation of a tension crack, followed by two landslides over five months. The results show that the clay material that dominates the study area is the dominant controlling factor of a landslide, triggered by long-duration, low-intensity rainfall. Rainwater entering through tension cracks increases moisture content, adding load to the slope and triggering landslides. Furthermore, the train's external load on the slope also contributes to the occurrence of landslides. The static and cyclic load of the train causes changes in the slope's pressure balance, generating a force that drives the downslope soil. Further analysis was performed using back analysis method with the limit equilibrium method to enhance understanding of slope stability parameters at the time of slope failure. The analysis was performed considering the rising groundwater level. A factor of safety (FS) value of 0.989 was obtained at the end of the simulation, indicating that the slope had failed.
Illusion in Architecture: An Alternative for Creating Virtual Environment to Support Efficient Site Utilization Pradika, Ferian Yavis; Samodra, FX Teddy Badai; Cahyadini, Sarah
INERSIA lnformasi dan Ekspose Hasil Riset Teknik Sipil dan Arsitektur Vol. 20 No. 1 (2024): May
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/inersia.v20i1.72333

Abstract

Virtual materiality has become a reality due to technological advancements. This affects the evolution of architecture. Land utilization in residential designs is currently unrestricted. Humans still exploit natural land and food supplies to build homes. Conversely, houses that merely use the land for viewing rather than traversing it are an example of inefficient land usage. In architecture, virtual materiality plays a part in creating an artificial world. In order to minimize land consumption, an architectural strategy that may introduce virtual materiality into the real world is required. Illusion is one tactic. Tricks and deceit are given priority in the illusion technique. This program is intended for home users who want to replace their natural surroundings with an artificial one. By using this method, nature can improve without requiring interference from the original environment. Modeling experiments and qualitative research are used in the research methodology. Create suggested concepts by using an architectural methodology. Rendering models and sketches are the research outputs. The findings demonstrate that home design can make use of illusion as a representation of virtual materiality. Through the application of matter illusion techniques, manufactured environments can be made to resemble natural ones. Implementing the material illusion in a trapezoidal home. Screen technology is used to do this. The center of the design is where screen technology is used to display environmental content. big horizontal and vertical sides are necessary. However, this can be a substitute for the natural environment for residents, especially in dwelling design.
Identify Location Characteristics of Tourism Accommodation that are Influenced by e-Commerce Case Study: Lembang Tourism Area, Kab. West Bandung Dewantara, Oky; Cungwin, Ardelia Jessica; Muhammad, Fadhil; Putri, Reliya Annisa; Cahyaningtyas, Mutia Ayu
INERSIA lnformasi dan Ekspose Hasil Riset Teknik Sipil dan Arsitektur Vol. 19 No. 2 (2023): December
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/inersia.v19i2.60458

Abstract

The presence of the Industrial Revolution 4.0, which is marked by the rapid development of the internet, has fundamentally changed the way humans live, work, and communicate with each other. This development has also influenced the development of the business of providing accommodation in tourist areas. The ease of obtaining information via an internet network that is connected to regional areas opens up opportunities for the public to market tourist accommodation through e-commerce accommodation. The Lembang tourist area is an area with high potential for the development of e-commerce accommodation, covering 25.64% of tourist attractions in West Bandung Regency. This research aims to determine trends and developments in the characteristics of business locations providing accommodation in the Lembang tourist area based on observations via digital platforms. Data was obtained using a spatial analysis method with two different functions. The classification function is used to review location characteristics in businesses providing accommodation based on road class. The neighborhood function is used to review location characteristics based on proximity to tourist centers. The data was then analyzed descriptively and qualitatively. The results of the research show that the development trend of e-commerce accommodation in accommodation provision businesses continues to grow from year to year. Observation results via digital platforms show that as many as 136 accommodation business units were incorporated into e-commerce accommodation in 2019 in the Lembang tourist area. The location characteristics of the business providing accommodation tend to be concentrated around tourist areas with a radius of 1 km from the tourist center. Judging from the characteristics of business locations providing accommodation on roads, it is known that 59% of business units are predominantly located on neighborhood roads, while 41% are on main roads. The ease of access offered by this digital platform influences the development of business providing accommodation and location on the road class but does not significantly affect the distance to tourist centers.
Electrical Resistivity Tomography as a Geotechnical Justification Support (Case Study Makassar – Pare-Pare Railway Bed Construction KM 68+450 to KM 68+750) Sasmayaputra, Nur Alfian; Wibowo, Dian Eksana; Fajarwati, Yuli; Endaryanta, Endaryanta; Aswad, Sabrianto; Widiastuti, Nur Oktaviani
INERSIA lnformasi dan Ekspose Hasil Riset Teknik Sipil dan Arsitektur Vol. 20 No. 2 (2024): December
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/inersia.v20i2.77380

Abstract

This study examined the presence of underground water channels under the Makassar - Pare-pare railway line KM 68+450 – KM 68+750 and the design concept for the technical solution. The potential for underground water channels was identified during construction, based on community information, the location's morphological phenomena, and  geological conditions whose base rock was the limestone formation. The problems can cause instability of the railway line, resulting in unsafe train travel. One of the characteristics of limestone rock conditions is its hollow shape, like a cave that can become underground water flow. It was a case study whose solution was based on data obtained from geotechnical investigations. Boring testing can only provide information on soil layers at the test point and cannot describe soil stratigraphy section, including underground water channel.  Combination  ERT and Boring tests were carried out to examine the presence of underground water channels. This study was conducted in three stages: initial identification, advanced identification, and design concept of Technical Solution. In these three stages, data collection and analysis were carried out. The results of the study indicated that ERT tests could provide a picture of the subsurface to shallow bedrock, thus facilitating the justification of geotechnical design. From the analysis, it was concluded that no channel cavities, such as caves, that function as underground water channels. The existing water flow was estimated to be a confining aquifer where water flows due to the height difference in the surrounding morphological conditions through the media of the broken limestone water shaft. It was confirmed with the results of Boring and ERT tests. The proposed technical solution concept was strengthening the Dolken embankment structure and geogrid, combined with a subdrain layer. The technical solution was prepared based on the results of research on construction contract data and project resource readiness.
The Acculturation of Building Facade Characters in Loji Wetan Area, Surakarta Putri, Dewi Widowati; Widyastuti, Dyah Titisari
INERSIA lnformasi dan Ekspose Hasil Riset Teknik Sipil dan Arsitektur Vol. 20 No. 2 (2024): December
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/inersia.v20i2.72441

Abstract

Loji Wetan is a former European ethnic residential area to the east of Vastenburg fort, Surakarta. This area has the characteristics of European building. However, the visual are gradually fading due to changes in facade form. The research identified the character of 22 residential buildings based on variables and indicators regarding facade components which discuss roof components, columns, doors, windows, guardrails, porches or verandas, and stairs, as well as architectural facade composition which discusses symmetry, geometry, proportion and scale, rhythm, and contrast. The research show that the characteristics at Loji Wetan are a product of acculturation between colonial, Javanese and Chinese architecture. Colonial elements presented with clipped gable roofs, supporting column structures, size of the doors and window, as well as the presence of a 2-story building. Javanese influence the presence of carved ornaments above lintels, wooden lattice window models, wooden columns, and the symmetry of the faí§ade which represent the Javanese philosophy of balance. Meanwhile, the Chinese style is shown through the column-free facade that squeezes into the street.  This product of acculturation influenced by several factors, including socio-cultural, political, and economic factors.
Spatial Patterns of Nomad Tourism in Canggu Village Bali Utama, Christian Petra; Nuryanti, Wiendu
INERSIA lnformasi dan Ekspose Hasil Riset Teknik Sipil dan Arsitektur Vol. 20 No. 2 (2024): December
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/inersia.v20i2.73224

Abstract

Nomadic Tourism has emerged as a new trend after the Covid-19 pandemic. This tourism style involves travellers moving around and staying for certain periods in destinations that offer easily movable amenities. Canggu Village in Bali has become one of the world's most popular destinations for nomadic tourists, ranking eighth based on reviews from the nomad tourist community. In Canggu Village, nomadic tourists form spatial patterns influenced by their behaviour, types of travel, and travel patterns. This research aims to identify the behaviour of nomadic tourists in Canggu Village, Bali, and to describe the spatial patterns of Nomadic Tourism in the area. The research employs a descriptive qualitative approach, utilising methods such as observation, interviews, and documentation. The findings reveal insights into the behaviour of nomadic tourists and provide a detailed description of the spatial patterns of Nomadic Tourism in Canggu Village, Bali.
Analysis of the Comparison Between Residents' Perception and Field Measurement of Visual and Thermal Comfort (Case Study: Student Dormitory Building) Yulianto, Dwi; Irawati, Inggar Septhia; Nugroho, Arief Setiawan Budi
INERSIA lnformasi dan Ekspose Hasil Riset Teknik Sipil dan Arsitektur Vol. 20 No. 2 (2024): December
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/inersia.v20i2.77370

Abstract

As public buildings, student dormitories must be comfortable as they host most of the students' lives and activities. A space's visual and thermal comfort significantly impacts the occupants' activities and productivity. Indicators for assessing the building comfort level include visual, thermal, and noise comfort in spaces or buildings. This paper presents the results study of the building's visual and thermal comfort measurement and the occupants' perception toward comfort. This paper also presents the comparison between that measurement and the occupants' perceptions. This research employs a mixed-methods approach consisting of qualitative methods (occupants' perception questionnaire) and quantitative methods (field measurements of lighting levels, air temperature, and humidity). Data were collected through questionnaires distributed to dormitory residents and field measurements using an Environmental Meter 4 in 1 to measure natural and artificial lighting levels, air temperature, and humidity. The data obtained were analyzed and then presented in a descriptive format. Based on residents' perceptions, the findings indicate that the overall visual and thermal comfort in the dormitory building falls within a good category. The field measurements on natural lighting, air temperature, and humidity show that the student dormitory building meets the established comfort standards. However, the artificial lighting of staircases and corridors doesn't meet the standards due to many non-functioning lights and low lumen levels. Overall, the lighting, temperature, and humidity conditions in the dormitory building are influenced by building design, orientation, surrounding environment, and occupants' behavior. To enhance comfort and health for residents, improvements in artificial lighting systems, enhancement of natural ventilation, and education on the importance of good air circulation are necessary.
Analysis of Peak Ground Acceleration (PGA) and Modified Mercalli Intensity (MMI) Scale using PSHA Method in Lampung Province Yahya, Muhammad Harun; Ashari, Almaida Enggar; Syahbana, Arifan Jaya; Kuntjoro, Yanif Dwi; Luthfin, Ahmad
INERSIA lnformasi dan Ekspose Hasil Riset Teknik Sipil dan Arsitektur Vol. 20 No. 2 (2024): December
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/inersia.v20i2.73063

Abstract

Earthquakes are inevitable natural disasters that are challenging to predict, yet effective mitigation is crucial. Lampung Province, located in Indonesia, faces significant tectonic activity due to the Sumatra Fault System (SFS) and the subduction of the Indo-Australian and Eurasian plates. Its strategic location as the gateway to Sumatra Island further underscores the importance of understanding earthquake hazards in the region. This study analyzes earthquake risks in Lampung Province using a micro-scale approach that integrates Peak Ground Acceleration (PGA) and Modified Mercalli Intensity (MMI) values through the PSHA method. The PSHA method identifies earthquake microzonations and generates PGA values that are then converted to the MMI scale to determine the intensity of earthquake strength. The mapping of Lampung Province identified five zones with different levels of earthquake hazard, ranging from VII to XI MMI with varying PGA values. The first zone, on the VII MMI scale, has a PGA ranging from 0.20 to 0.25g. The second zone, in the VIII MMI scale category with PGA ranging from 0.20 to 0.40g. The third zone, falls within the IX MMI scale category with PGA ranging from 0.40 to 0.70 g. The fourth zone is categorized as X MMI scale with PGA values ranging from 0.70 to 1.00g. The fifth zone, has a scale of XI MMI with a range of PGA values between 1.00 and 2.50 g. Areas with higher PGA and MMI scales indicate a greater potential for severe damage, highlighting the need for targeted mitigation strategies in high-risk zones. These findings provide a foundation for disaster preparedness and urban planning in Lampung Province.
Effect of Sand Sphericity and Cement-to-sand Ratio on Effective Porosity and Permeability of Concrete Sand Filter Pradana, Gregorius Signer; Kamulyan, Budi; Supraba, Intan
INERSIA lnformasi dan Ekspose Hasil Riset Teknik Sipil dan Arsitektur Vol. 20 No. 2 (2024): December
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/inersia.v20i2.76088

Abstract

Sand filter is a widely used water treatment technology due to its operational simplicity. The drawbacks of sand filter operation are long backwash times and particle stratification, leading to high energy and sand replacement costs. The concrete sand filter (CSF) was created by mixing sand with cement paste as a binding agent. CSF establishes its water production capacity based on its effective porosity and permeability, which are influenced by the shape of the sand. CSF may have more spherical particles because the cement paste covers the sand. Previous studies have investigated the influence of the shape and size of aggregates on the porosity and permeability of pervious concrete. This study investigates the effective porosity and permeability of CSF using various sand shapes and cement-to-sand (c:s) ratios, as well as changes in the shape of the sand grains used to build the CSF due to mixing with cement paste. The sand types are characterized by their circle ratio sphericity; the c:s ratios tested are 0, 1:6.4, and 1:8.6. All specimens are 10.9 cm in diameter and 20 cm in height. The water displacement method was employed to measure the effective porosity, while the constant head method was used to determine the permeability. The results indicate that when the circle ratio sphericity of the sand used to build the filter increases, the effective porosity and permeability of filters decrease for all values of c:s. Specimens with high cement content have lower effective porosity and permeability and show a strong linear relationship (R² = 0.9555 at c:s = 1:6.4).