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Teknisia
Published by Universitas Islam Indonesia
ISSN : 08538557     EISSN : 27460185     DOI : 10.20885/teknisia
Core Subject : Engineering,
Engineering
Jurnal Teknisia terbit pertama kali pada bulan April 1996. Pada awal berdirinya, Jurnal Teknisia merupakan jurnal ilmiah berkala yang diterbitkan tiga kali setahun oleh Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia, Daerah Istimewa Yogyakarta yang berisi artikel-artikel bidang teknik sipil, teknik lingkungan, dan arsitektur.
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Articles 137 Documents
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ANALISIS KEANDALAN EMBUNG SELOPAMIORO DALAM MEMENUHI KEBUTUHAN AIR BAKU DAN IRIGASI DAERAH IMOGIRI BANTUL Agus Budi Satriyo; Sri Amini Yuni Astuti
TEKNISIA Vol 27 No 2 (2022): Teknisia
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/teknisia.vol27.iss2.art5

Abstract

Management of water sources in the Imogiri Region of Bantul Regency still needs to be improved. Although there are several springs in the area, water availability can still not meet the community’s water needs. Therefore, the solution needed is a problem solved to get a good water management system so that the wheels of life and the community’s economy can run well. One of them is to build a water reservoir as a small dam. With this Embung Selopamioro, it is hoped that the rainwater that falls in this region can be accommodated and used for community needs. The study was conducted with several analyses of the capacity of the small dam with three comparisons: analysis of water availability, analysis of water demand, and analysis of topographic characteristics. Small dam reliability is analyzed by simulating a reservoir water balance and the level of reservoir reliability in meeting the community’s water needs. The maximum capacity of the small dam is 9.317,72 m3, with a living storage capacity of 8.979,71 m3 and a dead storage capacity of 338,01 m3. The water requirement that can be met is the irrigation demand of 9,71 ha of rice field with 667.683,556 m3, and the raw water demand for 1.318 people is 24.465 m3. The level of small dam reliability for optimizing irrigation water demand with an area of 9,71 ha rice field and raw water demand with a population of 1.318 people has the lowest value of 51%.
EVALUASI KINERJA PILAR JEMBATAN LEMAH IRENG II BERDASARKAN PERFORMANCE BASED SEISMIC DESIGN Farah Amrina; Muhammad Riyansyah; Aris Aryanto; Erwin Lim
TEKNISIA Vol 28 No 1 (2023): Teknisia
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/teknisia.vol28.iss1.art1

Abstract

Lemah Ireng II Bridge is a type of box girder balance cantilever bridge located in Semarang Regency, Central Java, which was completed in 2014. The renewal of bridge loading regulations in 2016 consisted of SNI 1725:2016 for standard load and SNI 2833:2016 for earthquake load. Changes in earthquake loading regulations resulted in an increase in the ground surface spectra value in the short period (Sds, T=0,2 second) in the longitudinal direction by 38.47% and in the transverse direction by 45.39% as a result of updating the earthquake map and the earthquake response modification factor. To determine the level of bridge performance against the applicable earthquake regulations based on the pier structure parameters, the Non-Linear Time History Analysis (NLTHA) method is used. The NLTHA method uses seven deaggregated ground motion records which aim to represent the ground motions that occur at the bridge site. Parameter limits at the pier to determined performance level of bridge based on NCHRP Synthesis 440 and NCHRP Research Report 949. According to the results of performance-based analysis, the bridge pier structure meets the Fully Operational performance level based on the parameters of drift, compressive strain of concrete and tensile strain of steel reinforcement. At this level of performance, after an earthquake the structure suffers very little damage so no repairs are needed and the bridge can function immediately after the earthquake.
KAJIAN PERUBAHAN IKLIM DI DKI JAKARTA BERDASARKAN DATA CURAH HUJAN Miftahul Jannah; Joko Sujono; Adam Pamudji Raharjdo
TEKNISIA Vol 28 No 1 (2023): Teknisia
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/teknisia.vol28.iss1.art5

Abstract

A common annual problem that often occurs in DKI Jakarta is flooding. Extreme rainfall is one of the most dominant factors that trigger flooding in DKI Jakarta. Global warming causes climate change and rainfall characteristics. This study aims to understand the characteristics of the climate rainfall in DKI Jakarta at this time and the potential for changes in the future. In this study, the characteristics of rainfall which is analyzed were rainfall variabilities such as annual rainfall, maximum rainfall, and the number of rainy days as indicated by analysis of rainfall trends or the tendency of changes in rainfall characteristics over time. Rainfall prediction simulation is carried out using the Statistical Downscaling method. The climate model used is CanESM5 (The Canadian Earth System Model version 5), which is one of the climate models in the Assessment Report (AR6) issued by the IPCC in 2022. The future rainfall at each station is projected for the future period (FP), namely FP-1 (2025-2049), FP-2 (2050-2074), and FP-3 (2075-2100) with the climate scenario Shared Socio-economic Pathways (SSP) 3-7,0. Predictive rainfall analysis yields information that the average annual rainfall, average maximum rainfall and the number of rainy days generally increase in each future period when compared to the historical annual average rainfall. In general, climate change does not result in changes in monsoon rainfall patterns. However, global warming has the potential to increase future rainfall and speed up the start of the rainy season.
The ANALISIS KINERJA COLD PAVING HOT MIX ASBUTON DENGAN FILLER PORTLAND CEMENT TERHADAP INTENSITAS RENDAMAN Andri Irfan Rifai; Muhammad Hafidh; Muhammad Isradi; Joewono Prasetijo
TEKNISIA Vol 28 No 1 (2023): Teknisia
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/teknisia.vol28.iss1.art3

Abstract

Using Cold Paving Hot Mix Asbuton (CPHMA) is an alternative to road preservation needs in the form of quick patching in Indonesia, which is considered optimal. However, until now, CPHMA still needs to be considered strong against natural challenges with high rainfall. This paper aims to test the performance of CPHMA with Portland cement filler against the Immersion Test. The immersion test is a laboratory model as an approach to immersion due to rainfall on road preservation. The test specimens were selected based on the optimum asphalt content, comprising 57 pieces. Tests are carried out in the laboratory with various Indonesian National Standard tests. Then the Marshall test was carried out with standard conditions (2x75 collisions) to determine density, stability, yield, Marshall quotient, standard durability tests, and modified durability to determine the durability index value. The Immersion test results showed that CPHMA with 1% Portland cement as filler and optimum asphalt content of 6% could withstand immersion for three days, 7 hours, 37 minutes 15 seconds. The duration of the immersion is relatively long compared to the period of immersion in the field due to the rain that occurred.
INVESTIGASI PENYEBAB GENANGAN BANJIR DI KAWASAN AEROTROPOLIS YOGYAKARTA INTERNATIONAL AIRPORT Shofwatul Fadilah; Istiarto; Djoko Legono
TEKNISIA Vol 28 No 1 (2023): Teknisia
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/teknisia.vol28.iss1.art2

Abstract

The Yogyakarta International Airport (YIA) Aerotropolis area, Kulon Progo, is in an area prone to flooding. Some areas are flooded during the rainy season, including the Carik drainage channel that flows the discharge into the Bogowonto River on the west side and the Serang River on the side of east. This paper describes the results of the investigation of flood inundation that occurred in the drainage system of the YIA Aerotropolis area to determine the causes of flood inundation. The data were collected from literature studies, observations, interviews, and documentation at the study locations. Interviews were conducted using a questionnaire to the community around the drainage system of the study location. The data is then processed using the Structural Equation Modeling-Partial Least Square (SEM-PLS) method with SMART PLS 3.0 software. The investigation results show the inundation of floods in the Aerotropolis area of Yogyakarta International Airport caused by flood discharge from upstream, the influence of the Serang and Bogowonto Rivers, and the condition of the canals and buildings in the drainage system. Based on the Structural Equation Modeling-Partial Least Square (SEM-PLS) test results using SMART PLS 3.0, there is a positive effect from channel flow conditions and surface runoff to the flood inundation in the YIA Aerotropolis area. Based on the bootstrapping test, the t-test value was more than 1.96, while the p-test value showed a value of less than 0.05 for each factor causing flood inundation in the YIA Aerotropolis area.
KONTRIBUSI NORMALISASI HYSTERETIC ENERGY TERHADAP DAMAGE INDEX DI PADA RESPONS INELASTIK STRUKTUR SDOF AKIBAT GEMPA Widodo; Malik Mushthofa
TEKNISIA Vol 28 No 1 (2023): Teknisia
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/teknisia.vol28.iss1.art6

Abstract

At a relatively large earthquake ground acceleration, the response of the structure is no longer elastic but is already in the inelastic phase where hysteretic energy is one of the elements of the earthquake energy content. In this phase, structural damage can not be avoided and structural damage is generally expressed in term of damage index DI. Studies on the contribution of normalization of hysteretic energy to the SDOF structure have been carried out. The inelastic behavior of the structure is simulated according to the behavior of Modified Takeda hysteretic model. In this study, two variables were used, namely the earthquake frequency content which is expressed in term of A/V ratio and the vibration period of the structure T. The results showed that the lower the value of the A/V ratio tends to result in a greater damage index DI, both for relatively rigid structures and for relatively flexible structures. The more flexible a structure tends to experience a greater damage index DI both for earthquakes high, medium and low frequency. The contribution of normalization of hysteretic energy to the damage index DI ranges from 10-30%, and the more flexible the structure, the contribution of normalization of hysteretic energy will be smaller. Furthermore, there is also a tendency that the lower the earthquake frequency content, the smaller the contribution of normalized hysteretic energy will accordingly.
KARAKTERISTIK OPTIMUM BETON MUTU TINGGI DENGAN PENAMBAHAN SERBUK KACA Ilham Nuruddin; Mochamad Teguh; Elvis Saputra
TEKNISIA Vol 28 No 1 (2023): Teknisia
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/teknisia.vol28.iss1.art4

Abstract

Concrete material innovation is one of the most used in construction nowadays. Along with the infrastructure growth, the amount of waste increases, such as glass waste. The glass waste contains silica and can be used as filler in the concrete mixture. This study aimed to determine the influence of added glass powder as filler on high-strength concrete. This research method was a laboratory experiment testing high-strength concrete to seek optimum characteristics of high-strength concrete based on the glass powder composition added. The optimum concrete characteristics consist of compressive strength, tensile strength, and modulus of elasticity for five samples with different material compositions shown in Table 3, and each sample comprised 6 (six) specimens tested. This study found that the second sample achieved the optimum compressive strength of concrete with 47.07 MPa, more significant than the compressive strength design (fcr) of 45 MPa. The optimum tensile strength produced 3.91 MPa or 8.3%, which correlated to the compressive strength of the BSK2 sample. Similarly, the optimum modulus of elasticity was then computed based on laboratory compressive strength tests referring to SNI 2847:2019 and the ASTM C-469-94, resulting in 33271.7 MPa dan 36164.95 MPa, respectively. In contrast, the modulus elasticity calculated based on the weight volume of concrete referring to SNI 2847:2019 has reached the highest elasticity modulus on the first sample with 34384.8 MPa.
Development of work safety procedures for PCI Girder installation using interactive analysis models Ahmad, Chairul; Fitri Nugraheni; Faisol
Teknisia Vol 29 No 1 (2024): Teknisia
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/teknisia.vol29.iss1.art3

Abstract

As part of the government's infrastructure acceleration initiative, toll road construction has become a key focus to enhance regional development and connectivity. However, such projects, particularly those involving the installation of precast concrete girders, carry significant risks of workplace accidents. Between 2017 and 2021, six accidents related to girder erection occurred during toll road construction projects. This study aims to develop work safety procedures for the installation of Type I precast concrete girders in the Bakauheni–Sidomulyo toll road project. The proposed safety procedures, presented as a flow chart, are based on national and international safety standards, providing a clear and sequential overview of the process to ensure better understanding and risk mitigation. The study uses the Interactive Analysis Model for data analysis, encompassing Data Collection, Data Reduction, Data Presentation, and Conclusion Drawing, where data collection and analysis are conducted in an iterative and simultaneous manner. The results, validated by site engineers and safety officers both within and outside the project, identified 62 potential risks stemming from unsafe conditions and provided 85 safety recommendations. These findings offer practical guidance for contractors to minimize the risk of accidents during the PCI girder erection process.
Time and cost performance analysis: earned value management method on HPK Project Using Mobox Vegit Risana Hughes; Susetyo, Budi
Teknisia Vol 29 No 1 (2024): Teknisia
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/teknisia.vol29.iss1.art6

Abstract

Conventional construction methods have proven inadequate for meeting the accelerated development needs of IKN, highlighting the necessity for innovative approaches to expedite construction. Additionally, challenges related to material supply further exacerbate the situation. The Mobox method emerges as a promising alternative, offering potential to streamline project completion. This study compares time performance between conventional concrete methods, which typically require 7 months, and the Mobox method, which achieves the same in 4 months. The aim is to evaluate whether time and cost performance align with the project owner's expectations, using the Earned Value Management (EVM) method for a 4-storey building project utilizing Mobox modular construction. At week 16, the project’s time performance met expectations, as evidenced by a Schedule Variance (SV) of zero and a Schedule Performance Index (SPI) of 1. Cost performance also exceeded expectations, with a positive Cost Variance (CV) of Rp 11,784,790,045.29 and a Cost Performance Index (CPI) of 1.023, indicating cost efficiency. The Mobox method, coupled with the EVM approach, proves to be an effective and efficient alternative for construction projects, demonstrating the capability to complete projects on time and within budget while maintaining quality.
Structural evaluation and analysis of existing house renovation into shophouse based on Building Information Modeling Ahmad Yudi; Nugraha Bintang Wirawan; Siti Rahma; Kartinanda P.; Amantawidya Durratul Hikmah; Annida Evilia Miranda; Siska Apriwelni
Teknisia Vol 29 No 1 (2024): Teknisia
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/teknisia.vol29.iss1.art1

Abstract

Indonesia's population and economic growth must be supported by adequate facilities and infrastructure, including residences and business premises. Renovating residential houses into shophouses offers an effective way to optimize land use and reduce construction costs. A thorough evaluation of existing structural elements is critical to determining which components can be retained, alongside accurate cost and scheduling assessments to ensure smooth renovation. This research utilizes Building Information Modeling (BIM) to integrate structural, architectural, and MEP work, as well as to streamline scheduling and cost estimation. ETABS is employed for structural design, while Autodesk Revit and Navisworks are used for cost and schedule planning. The assessment follows ASCE 41-17 guidelines to evaluate existing structures, and SNI 1726:2019 and SNI 2847:2019 standards for retrofitting and designing new structures. The evaluation reveals deficiencies in global strength and component ductility, necessitating structural retrofits using concrete jacketing. This study not only addresses the renovation of a residential house into a shophouse but also contributes to broader research in construction. The estimated cost for the structural renovation is Rp. 159,692,607.93, and the duration is projected at 58 days, with 11 days for demolition and 47 days for upper structure construction.

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