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International Journal of Sustainable Building, Infrastructure and Environment
Published by Universitas PGRI Semarang
ISSN : -     EISSN : 27164829     DOI : -
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
International Journal of Sustainable Building, Infrastructure, and Environment (IJOSBIE) is a peer-reviewed open-access international scientific journal who aims to provide an international platform for researchers, professionals, lecturer, and educational practitioners on all topics related to sustainable building, infrastructure, and environment issues, insight by leading scholars, theorists, and practitioners worldwide. IJOSBIE papers will be published twice a year on January and July by Universitas PGRI Semarang, Jawa Tengah, Indonesia.
Arjuna Subject : Teknik (semua kategori) - Teknik Sipil dan Struktur
Articles 101 Documents
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Analysis of the reliability value of building safety System (nkskb) and level of occupants readiness in facing Fire at johar market, semarang, central java (south johar) Esterida, Berliana; Jaryati, Jaryati; Suwandi, Putri Anggi Permata; Rizani, Mohammad Debby
International Journal of Sustainable Building, Infrastructure and Environment (IJOSBIE) Vol 3, No 1 (2022)
Publisher : Science and Technology Research Centre, Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/ijosbie.v3i1.12715

Abstract

Abstract. Public buildings are buildings used by people from various walks of life, which are built or intended not for the benefit of private residences, but for the general public which are identical to community service centers (Siti Azizah, 2013). One of the public buildings is the Johar market, Semarang. An important aspect of a public building is fire safety. The purpose of this study was to determine the level of reliability of the public building security system against fire hazards in the Johar Semarang market (Johar Selatan), and the readiness of the occupants of the Johar Semarang market building in the face of fire disasters. The method used in this research is descriptive-quantitative research method which is collecting data obtained from interviews, field notes, personal documentation, researcher notes, and other supporting documents. The results of the analysis of the utility component assessment of the four variables resulted in a Building Safety System Reliability Value (NKSKB) of 86.12%, based on these results it can be concluded that the reliability value of the building is in good and safe condition. The level of readiness of residents in facing the danger of fire disasters is still in the poor category with an average level of readiness of residents of 51.12%. This shows the need for increased application of protection systems and rescue facilities, especially for several protection systems that are still damaged and not functioning as well as socialization to residents regarding the use of fire extinguishers, fire simulations, and the need to provide adequate PPE.Keywords: Public Buildings, Level of Reliability, Occupancy Readiness
ANALYSIS OF FLOOD DISCHARGE OF THE BLORONG RIVER, KENDAL DISTRICT Apriarso, Dally; Kusuma, Ilham; udin, Ikhwan; Yudaningrum, Farida
International Journal of Sustainable Building, Infrastructure and Environment (IJOSBIE) Vol 6, No 1 (2025)
Publisher : Science and Technology Research Centre, Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/ijosbie.v6i1.21093

Abstract

Abstrack. The Blorong River is a river in the Brangsong District, Kendal Regency, Central Java Province, which has the potential to be hit by flood disasters almost every year. So conditions like this can cause losses to communities around the Blorong River. Through the research carried out, the aim was to determine the maximum discharge of the Blorong river with a river length of ± 3.3 km. The calculations and analysis applied in this research use quantitative methods. The primary data taken is documentation of the existing conditions of the Blorong river, while the secondary data is rainfall data from Balai Pusdataru Bodri Kuto. Analysis of the planned flood discharge using the Nakayasu HSS method shows that the planned return period flood discharge is Q2 years = 236,500 m³/s, Q5 years = 276,392 m³/s, Q10 years = 296,294 m³/s and Q25 years = 300,180 m³/s. After comparing it with the results of manual calculations of the existing conditions of the Blorong River using the Manning formula. The solution to the problem of flooding from the Blorong river is to normalize the river, raise the embankment in the STA section which is no longer able to accommodate the planned flood discharge, and also provide regulations so that people do not throw rubbish in the river.Keywords: Flood Analysis, Flood Discharge, Blorong River
Decreasing Level Of Total Suspanded Solid (TSS) And Nitrate In Alcohol Traditional Wastewater Using Multi Soil Layering Electrolysis (MSLE) Method Mahardika, Nanda Pratiwi; Fatimah, Siti
International Journal of Sustainable Building, Infrastructure and Environment (IJOSBIE) Vol 2, No 1 (2021)
Publisher : Science and Technology Research Centre, Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/ijosbie.v2i1.8611

Abstract

Home industry for making alcohol traditional in Bekonang Village, Sukoharjo produces large volumes of liquid waste which is discharged into the river without going through any waste treatment. One of the wastewater treatment methods is Multi Soil Layering Electrolysis (MSLE) which is a combination of Multi Soil Layering (MSL) and Electrolysis methods used to reduce levels of Total Suspanded Solid (TSS) and Nitrate in Alcohol waste. The purpose of this experiment was to determine the effect of time and voltage variations and the effectiveness of using the Multi Soil Layering Electrolysis (MSLE) method to reduce traditional alcohol waste. The results showed that MSLE method is quite effective to reduce Nitrate levels by 82.06% with an effective voltage of 10 volts in 40 minutes. Meanwhile, for TSS levels increase until 164 mg/L with the voltage is 10 volts in 30 minutes.
Four Floor Building Fragility Analysis With Consideration of The Masonry Infilled Wall Contribution Hapsari, Isyana Ratna
International Journal of Sustainable Building, Infrastructure and Environment (IJOSBIE) Vol 1, No 2 (2020)
Publisher : Science and Technology Research Centre, Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/ijosbie.v1i2.6997

Abstract

Brick masonry confined with concrete frame is very common for non engineered or institutional building in developing countries. This typical building often seriously suffer from earthquake hit the region. This study aims to evaluate seismic performance of this type of building by developing fragility functions of the structure. Masonry wall is modelled as diagonal strut within the concrete frame. The masonry constituents and composite properties were determined for the model. The structure was subjected to incremental static lateral loading while pushover analysis was utilized to predict the re-sponse of the structure. As the damage states were defined from the spectral capacity curves, the fragility functions were develop for the structure. Based on this study, the seismic performance of the buildings can be determined rationally based on the resulting capacity curve: the infilled frame structure can resist maximum load of 20,3 × 103 kN and open frame is only able to withstand 15,2 × 103 kN. From the fragility curve, it can be concluded that the probability of the infilled frame to reach a certain damage state is lower than the open frame. The results confirm the beneficial effect of the ma-sonry wall to increase the seismic resistance of the building.
Compound Coastal Flood Risk and Infrastructure Loss Estimation in Bengkulu City, Indonesia, under Sea-Level Rise Using Google Earth Engine and OpenStreetMap Fitriansyah, Aidil; Fikri, Muharram Nur
International Journal of Sustainable Building, Infrastructure and Environment (IJOSBIE) Vol 7, No 1 (2026)
Publisher : Science and Technology Research Centre, Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/ijosbie.v7i1.27662

Abstract

Bengkulu City, Indonesia, is facing increasing risks due to sea-level rise (SLR), yet risk assessments based on regulations are still absent for secondary coastal cities. This study models the compound flood hazard for three scenarios (+1.28 m, +2.13 m, +3.00 m) using Google Earth Engine, GIS and OpenStreetMap, to produce inundation zones of 12.64–77.76 ha. The five-class risk map generated by the Coastal Vulnerability Index weighted by AHP (CR = 0.016) covers 1,058.83 ha. Under Scenario B (2100, SSP5-8.5), the infrastructure exposure includes 22 buildings and 9.33 km of roads. Public facilities are excluded from the quantitative loss estimation because the buffer sensitivity analysis (200–1,000 m) shows 333–335 of 336 city amenities at all distances, indicating non-discriminating coverage. Confirmed direct replacement losses based on Kepmen PUPR No. 943/KPTS/M/2024, SE DJBK No. 68/2024 and Bengkulu IKK = 94.20, total IDR 47.1–102.0 billion across scenarios (Scenario B: IDR 86.1 billion). The loss due to annual maintenance is IDR 896 million/year (Pergub Bengkulu No. 25/2025). The regulation-compliant approach is transferable to other Indonesian secondary coastal cities as long as the site-specific VLM assessment is performed.
Banger Retention Pool As Alternative Control Flood Yudaningrum, Farida; Ikhwanudin, Ikhwanudin
International Journal of Sustainable Building, Infrastructure and Environment (IJOSBIE) Vol 1, No 1 (2020)
Publisher : Science and Technology Research Centre, Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/ijosbie.v1i1.19893

Abstract

Abstract. Semarang Utara is a lowland where the water level is approximately 2m above sea level so that if the weather is bad, waves or tidal waves occur, sea water will intrude onto the land . This happens almost every day, so a barrier is needed to prevent sea water intrusion into land . Before there was handling then It would be best to create an alternative retention pool simulation in the Banger chatment area . The method used uses primary data and secondary data taken from rainfall data closest to the B anger location, namely BMKG Mariti m. Retention pool simulation results and alternative pump capacities 1 with a pond area of 3.8 ha, input volume 1,199,070 m3 and output volume 432,000 m3, alternative 2 with a pond area of 4.7 ha, input volume 1,198,800 m3 and output volume 432,000 m3, alternative 3 with extensive 5 ha pond, input volume 1,199,070 m3 and output volume 432,000 m3 .Keyword : Pool Retention, Pumps, Channels
Thermal Conductivity of Compressed Stabilized Earth Brick (CSEB) Different Rate Percentage of Binder Use Karsono, Darnarti; Yuuwono, Abito Bamban; Kurniawan DS, Kukuh
International Journal of Sustainable Building, Infrastructure and Environment (IJOSBIE) Vol 1, No 1 (2020)
Publisher : Science and Technology Research Centre, Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/ijosbie.v1i1.5490

Abstract

Abstract. The level of conductivity of building skin material is one of the factors that influence the thermal conditions of a space, compressed stabilized earth bricks are proven to be more economical, environmentally friendly, stronger and have better ability to withstand the rate of heat propagation compared to ordinary firebrick , the number of percentages of the use of binder (binder) on bricks without burning will affect the level of thermal conductivity, in this article we test bricks without fires with the level of the number of percentages of use of different binder materials, bricks without fires with a smaller percentage of binder material / a little will have a slower rate of heat conductivity (better) and the higher the percentage of the use of binder material, the level of heat conductivity will be faster (not Good).Keywords: conductivity, thermal, brick without burning, Binder
Six Sigma-DMAIC (Define, Measure, Analyze, Improve, And Control) Analysis in Reducing Building Structural Defects (Case Study: Emirates Indonesia Cardiology Hospital Project) Mustika, Risti; Suwandi, Putri Anggi Permata; Kristiawan, Agung
International Journal of Sustainable Building, Infrastructure and Environment (IJOSBIE) Vol 6, No 2 (2025)
Publisher : Science and Technology Research Centre, Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/ijosbie.v6i2.24619

Abstract

Abstract. Construction projects often face challenges in maintaining quality, one of which is structural defects that can affect the quality and safety of the building. This study aims to analyze the level of defects in column, beam, and slab structures using the Six Sigma DMAIC method and provide solutions to improve these defects. The study was conducted on the Emirates Indonesia Cardiology Hospital Building Construction Project in Surakarta. The method used is a quantitative descriptive approach with the stages of Define, Measure, Analyze, Improve, and Control. Data were obtained through field observations, interviews, documentation, and secondary project data. The analysis results show that the average sigma level value is above 3, with the highest level in the column structure reaching 4.3 sigma for the type of concrete flow defect. The main causes of defects come from human factors, work methods, materials, and supervision. Improvement solutions are formulated using a fishbone diagram analysis approach and the assistance of NVIVO software for qualitative data analysis. This study shows that the Six Sigma DMAIC method is effective in identifying and reducing defects in concrete structure work and can be used as a quality control strategy in construction projects.Keywords: Six Sigma, DMAIC, Structural Defects, Construction Quality, NVIVO
ANALYSIS OF PARKING CHARACTERISTICS AND THE EFFECT OF ON STREET PARKING ON TRAFFIC PERFORMANCE Zulvia, Avita; Rizani, Mohammad Debby; Suwandi, Putri Anggi Permata
International Journal of Sustainable Building, Infrastructure and Environment (IJOSBIE) Vol 3, No 1 (2022)
Publisher : Science and Technology Research Centre, Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/ijosbie.v3i1.12903

Abstract

The space are available for park vehicle on the edge road in the area center city and along main street thing to do with permanent there is restrictions and controls as well as Settings or often called on street parking(Clarkson Grg Lesby and Bary Hicks, 1988). Study this background behind by trouble performance then traffic that is less than optimal is caused by the presence of on street parking on lane bicycle on Kartini Street, Salatiga City. In resolve problem the required existence analysis about characteristics parking and influence on-street parking along Kartini Street, Salatiga City. Method used in study this that is method approach descriptive quantitative. Collecting the data obtained from results interview, notes field, documentation private, notes researchers, and documents residents other. Study this show that characteristics parking and influence on-street parking to performance then traffic on Kartini Street, Salatiga City for duration parking belong to Category 1 and significant high turnover duration short, in general vehicle parking not enough from one hour with duration parking short in general for parking in the center spending, with capacity street 2489,22 pcu/hour, speed current free 37,665 km/hour vehicles as well as level service belong to category Level Of Service (LOS) B (0.20-0.44) with characteristics current stable, speed a little limited by past traffic, driver still could free in choose the speed.
Analysis of The Effect of Change Orders on Implementation Time and Construction Labor Costs in The Development Project of The Joint Lecture Building III at Unimus Rinaldi, Bramantyo; Suwandi, Putri Anggi Permata; Kristiawan, Agung
International Journal of Sustainable Building, Infrastructure and Environment (IJOSBIE) Vol 6, No 1 (2025)
Publisher : Science and Technology Research Centre, Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/ijosbie.v6i1.21537

Abstract

Change orders resulted in a total time deviation of 45 days (18.75%) from the initial plan, with the most substantial delays in structural and MEP work. Regarding labor costs, MEP work experienced the largest deviation at 25% (IDR 150,000,000), followed by foundation work (16.67%), structural work (15%), and architectural work (10%). Change orders also impacted labor productivity, particularly in MEP work (-25%), followed by foundation (-16%), structural (-12.5%), and architectural work (-12.5%). These productivity decreases resulted from changes in work methods, increased complexity, and adaptation requirements to new specifications. The study recommends several measures to minimize change order impacts: more thorough design reviews before implementation, allocation of time and cost buffers, improved documentation and approval systems, and more flexible workforce planning. Effective change order management is crucial for maintaining overall project success.

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