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Jurnal Teknik Sipil

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Published by Universitas Atma Jaya Yogyakarta

ISSN : 1411660X EISSN : 25492918 DOI : -

Core Subject : Engineering,

Civil Engineering, Building, Construction & Architecture Transportation

Jurnal Teknik Sipil adalah wadah informasi bidang Teknik Sipil berupa hasil penelitian, studi kepustakaan maupun tulisan ilmiah terkait. Terbit pertama kali Oktober tahun 2000. Frekuensi terbit dua kali setahun pada bulan April dan Oktober. (ISSN 1411-660X).

Arjuna Subject : Teknik (semua kategori) - Teknik Sipil dan Struktur

Articles 8 Documents

Search results for , issue "Vol 16, No 2 (2021)" : 8 Documents clear

PENGARUH TINGGI RIB TERHADAP DEFORMASI PADA KOMBINASI FONDASI SARANG LABA-LABA DAN TIANG BOR DENGAN PENDEKATAN ELEMEN HINGGA TIGA DIMENSI Hamdhan, Indra Noer; Sahib, Yasmin Jihan Fahira
Jurnal Teknik Sipil Vol 16, No 2 (2021)
Publisher : Program Studi Teknik Sipil Fakultas Teknik Universitas Atma Jaya Yogyakarta

Spiders Nest Construction (SNC) is the foundation in the form of flat concrete plates which are reinforced with upright ribs and soil repair between ribs. The KSLL and bored pile are combined to obtain a foundation with high structural rigidity. This study reviews the magnitude of deformation that occurs in the foundation model with a variation of rib height KSLL 1 m, 1.5 m, and 2 m which are varied with 10 bored pile with diameter of 0.6 m in zig-zag configuration with the soil model Mohr-Coulomb and Hardening Soil. In the Mohr-Coulomb soil model the stress state limits are explained using friction angles (Ï†), cohesion (c) and dilatation angles (Ïˆ). In the Hardening Soil model the soil stiffness is explained much more accurately by using three different stiffnesses namely E50 triaxial stiffness, Eur unloading / reloading stiffness and Eoed oedometer stiffness. In contrast to the Mohr-Coulomb model, the Hardening Soil model takes into account modulei dependence on rigidity. This means that all rigidity increases with pressure. Modeling on PLAXIS 3D shows that the most effective deformation occurs on a foundation with a rib thickness of 0.15 with 10 bored pile and a rib height of 1.5 m. The modeling results show the deformation value that occurs in the Hardening Soil soil model with a rib height of 1 m is 17.91 cm, reduced by 31.491% to 12.27 cm when the thickness of the rib is added to 1.5 m. Whereas in the Mohr-Coulomb soil model, the deformation that occurred on the foundation with a rib height of 1 m was 25.43 cm and reduced 48.997% to 12.97 cm when the rib height was added to 1.5 m.

EVALUASI PELABUHAN TIBAR TIMOR-LESTE DENGAN INDIKATOR HIJAU Rodrigues, Juvinal; Kaming, Peter F.; Koesmargono, Ambrosius
Jurnal Teknik Sipil Vol 16, No 2 (2021)
Publisher : Program Studi Teknik Sipil Fakultas Teknik Universitas Atma Jaya Yogyakarta

This study aims to find out what indicators are applied in the infrastructure of Tibar Port, port of East Timor and to formulate a port development strategy. The research location is in East Timor, a small country located in the south of East Nusa Tenggara, Indonesia. This research was conducted using the gap between reality and expectations of respondents using the Gap Analysis method. The result showed that the Customer Satisfaction Index in general, was 77, 6% and was in the 68-83 intervals therefore, the Tibar East Timor Partnership was categorized as â€œSatisfiedâ€. The gap between expectations and reality <1 is already good. The aspect that has the biggest GAP is the Energy and Resources Management Aspect with an Average Gap of 1.0. Whereas the aspects that have the smallest GAP are the Port Ecology Management Aspect and the Science and Technology Aspect Imaging and Social Participation with an Average Gap of 0.8. The indicators that must be considered are those in quadrant I: Noise control (noise pollution), Conservation, and ecological protection (interaction of living things and the environment) of the port, Quality management of clean water sources.

ANALISIS PENANGANAN WASTE MATERIAL CONSUMABLE DAN NON CONSUMABLE PADA PROYEK PERUMAHAN SEDERHANA DI KOTA PALANGKA RAYA Singarimbun, Pranisa Luita Nadia; Waluyo, Rudi; Gawei, Apria Brita Pandohop
Jurnal Teknik Sipil Vol 16, No 2 (2021)
Publisher : Program Studi Teknik Sipil Fakultas Teknik Universitas Atma Jaya Yogyakarta

Material merupakan salah satu komponen penting yang harus diperhatikan karena sangat mempengaruhi nilai produktivitas dan biaya proyek. Dalam pelaksanaan pembangunan sering terjadi masalah yaitu, material konstruksi yang berlebih, tersisa, berserakan, hancur yang tidak dapat digunakan lagi yang disebut waste material. Penelitian ini bertujuan untuk mengetahui material yang berpotensi menjadi waste material consumable dan non consumable beserta penyebabnya, upaya mengurangi waste material consumable dan non consumable yang akan terjadi dan cara penanganan waste material consumable dan non consumable yang telah terjadi pada proyek perumahan sederhana di Kota Palangka Raya. Penelitian ini dilakukan pada bulan Maret-September 2020, selama 7 bulan. Pandemi COVID-19 menyebabkan penelitian ini tertunda dan dilanjutkan kembali setelah memasuki kenormalan baru. Data penelitian diperoleh melalui survei penyebaran kuesioner kepada 35 pengembang perumahan sederhana di Kota Palangka Raya. Teknik analisis data yang digunakan adalah analisis frekuensi, dan deskriptif. Hasil penelitian ini menunjukkan bahwa material yang berpotensi menjadi waste material pada consumable material adalah semen, pasir, kerikil/agregat kasar, besi beton/tulangan, kayu (papan), keramik, pipa, paku. Sedangkan pada non-consumable material adalah papan bekisting, perancah kayu (balok) dan perancah kayu (bulat). Faktor penyebab waste material pada consumable material adalah pengukuran di lapangan tidak akurat sehingga terjadi kelebihan volume. Dan untuk non-consumable material adalah kesalahan yang diakibatkan oleh tenaga kerja. Upaya untuk mengurangi waste material consumable dan non consumable yang akan terjadi adalah kerja dengan teliti. Cara penanganan waste material consumable dan non consumable yang telah terjadi adalah gunakan kembali.

PERBANDINGAN HASIL UJI KAPASITAS DUKUNG TIANG PANCANG PADA TANAH LEMPUNG JENUH SKALA LABORATORIUM DENGAN PERHITUNGAN ANALISIS STATIS Pratama, Gumbert Maylda
Jurnal Teknik Sipil Vol 16, No 2 (2021)
Publisher : Program Studi Teknik Sipil Fakultas Teknik Universitas Atma Jaya Yogyakarta

Pile bearing capacity, is an important parameter in infrastructure design. The pile driving process, especially in saturated clay soils, results in an increase in pore pressure which affects the bearing strength capacity of the pile foundation immediately after erection. By knowing the com-parison of various ways to calculate the bearing capacity of a pile foundation, especially in clay soils, various influencing parameters can be studied and to be taken in determining the bearing ca-pacity of a pile foundation. The test is carried out by comparing the value of the pile bearing capacity of a laboratory scale pile model with the results of the calculation of the pile bearing capacity using the static analysis method based on the results of the test parameters of the soil. The clay soil con-ditions in the test are limited to saturated conditions. The reading of the change in pore water pres-sure is carried out using a pressure transducer during the pile driving process. Based on the pile loading test results in the laboratory, the pile bearing capacity results were 0.31 kN, while the bearing capacity results based on the static analysis method were 0.75 kN. The difference in pile bearing carrying capacity is caused by excess pore water pressure that appears around the ground during the driving process.

IDENTIFIKASI EFEKTIVITAS REAERASI MENGGUNAKAN MICROBUBBLE GENERATOR (MBG) PADA AIR EMBUNG Yulianti, Tri
Jurnal Teknik Sipil Vol 16, No 2 (2021)
Publisher : Program Studi Teknik Sipil Fakultas Teknik Universitas Atma Jaya Yogyakarta

The retention basin at the Faculty of Engineering Gadjah Mada University was built as a flooding control into the Code river and improving the water quality. The water entering the basin, especially in the dry season, is characterized as greywater due to the dense settlements around the university. The purpose of this study was to determine the effectiveness of reaeration process using a Microbubble Generator (MBG) to increase DO, with the aim of this leading to an improved water quality. The MBG aerator with submersible pumps was installed at a depth of 40 cm from the water surface and placed in the middle of the pond. The aerator was permanently turned on. In situ monitoring of DO was carried out using a seri Lutron WA-2017SD DO meter. The increasing DO correlated with the changes of the surrounding weather which impact on water and air temperature. At the time of DO data collection, the water temperature ranged from 24.5oC - 27oC and the change in DO measured at the inlet and outlet of the reservoir was in the range 0.3 - 1.1 mg/l, with the DO directly surrounding the aerator reaching up to 2.4 mg/l from the inlet. With the DO increased, the concentration of pollutant organic loads can be reduced and the nitritation and nitratation processes has taken place properly so that it has reduced the pollutant load before the water enters the Code river.

PENGARUH STABILISASI ABU DAUN BAMBU DAN SEMEN TERHADAP KEMBANG SUSUT (SWELLING) TANAH LEMPUNG EKSPANSIF Wijaya, William
Jurnal Teknik Sipil Vol 16, No 2 (2021)
Publisher : Program Studi Teknik Sipil Fakultas Teknik Universitas Atma Jaya Yogyakarta

Soft clay is a soil type mostly found in Indonesia. This type of soil requires treatment because of its poor properties. These properties have a relatively low bearing capacity in water saturated conditions, high swelling potential, and high plasticity. These are several methods to improve clay soil, including soil stabilization. Soil stabilization is a method of mixing pozzolanic materials such as cement and bamboo leaf ash with the natural soil. The purpose of this addition is to reduce the characteristics of expansive clay such as high swelling potential. The research focused on the results of swelling testing using an oedometer test and was carried out using 6 sample variants using cement with a percentage of 12% of the dry mass of soil and bamboo leaf ash with a percentage of 0%, 25%, 50%, 75%, 100% of the total weight of cement used. Preliminary research is carried out before the core research. The research included examining the original soil parameters, mineral content, and pozzolanic content of bamboo leaf ash. The results of the preliminary research showed that the natural soil is classified as a high plasticity (CH) clay group and had a high potential for swelling and shrinkage. Whereas in the pozzolanic material test, bamboo leaf ash contained a chemical compound of SiO2 as much as 79.68%. Based on the results, cement and bamboo leaf ash as stabilization agents succeeded in reducing the swelling value of the soil from 15.71% to 4.33% in the S100ADB0 and 6.07% variations in S75ADB25.

UAV-BASED PHOTOGRAMMETRY DATA TRANSFORMATION AS A BUILDING INSPECTION TOOL: APPLICABILITY IN MID-HIGH-RISE BUILDING Jati, Didit Gunawan Prasetyo
Jurnal Teknik Sipil Vol 16, No 2 (2021)
Publisher : Program Studi Teknik Sipil Fakultas Teknik Universitas Atma Jaya Yogyakarta

The photogrammetric concept is used as a practical implementation of this study. Data management is proposed as an active contribution in the process of data integration and data in-operability to develop solutions based on UAV-based Photogrammetry as part of building inspection activities. Point Cloud adjusts the main role as data to initialize objects whose information can be represented in 2D / 3D / 4D rich-data format. Decision making on each management framework is planned with the DJI Go and Pix4D Capture Application which is controlled by a smartphone that has been pre-configured for the plan UAV flights. The flight plan quality control, flight mission supervision, and data acquisition results are important factors in the management and related infor-mation framework. The Point Cloud created by the SfM (Structure from Motion) application is then imported by Autodesk Recap and reconstructed in Revit BIM. The 3D Point Cloud is lastly enhanced with some practically detailed information to contribute to the data management experiment. The collaboration model of this study is presented using AR / VR (Augmented Reality / Virtual Reality) to enable mobile monitoring as a research objective and substantial examination. The essence of this study is to develop UAV-based Photogrammetry / BIM / AR-VR as a method to reduce the risk of data mismatches, monitor communications, and increase the impact of practical instructions on de-cision making on building inspection activities. The results of each verified workflow show that the methodology applied produces informational and visual data products that allow user mobility within the scope of building inspection and monitoring. Furthermore, device limitations do not affect the data acquisition process to provide user safety and efficiency.

MODEL ESTIMASI BIAYA DENGAN COST SIGNIFICANT MODEL DAN ARTIFICIAL NEURAL NETWORK PROYEK PENINGKATAN JALAN ASPAL DI YOGYAKARTA Tahapari, Yesia; Nugroho, Arief Setiawan Budi; Suparma, Latif Budi
Jurnal Teknik Sipil Vol 16, No 2 (2021)
Publisher : Program Studi Teknik Sipil Fakultas Teknik Universitas Atma Jaya Yogyakarta

The need for an analytical method that may provide an accurate project cost estimation with minimal data availability becomes very necessary. Therefore, this research was conducted to determine and compare the cost estimation model based on the Cost Significant Model (CSM) and Artificial Neural Network (ANN) with two modeling approaches, ANN-1 and ANN-2. The models were developed based on 28 data of road improvement projects in Yogyakarta from the year 2010 until 2019. The analysis results show that the ANN-2 provides the best validation compared to the ANN-1 and the CSM model. The value of Mean Absolute Percentage Error (MAPE) of ANN-1 with the 3-8-1 net scheme provides a value of 12.687%, while that of ANN-2 with 10-15-1 net scheme is 8,132% and the MAPE value of the CSM model produces a value of 14.757%.

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Tri Yulianti

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jts@uajy.ac.id

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+62274-487711

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jts@uajy.ac.id

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Program Studi Teknik Sipil Universitas Atma Jaya Yogyakarta Jl.Babarsari No.44 Yogyakarta

Location
Kota yogyakarta,

Daerah istimewa yogyakarta

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Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Tri Yulianti

Contact Email jts@uajy.ac.id

Phone +62274-487711

Journal Mail Official jts@uajy.ac.id

Editorial Address Program Studi Teknik Sipil Universitas Atma Jaya Yogyakarta Jl.Babarsari No.44 Yogyakarta

Location Kota yogyakarta, Daerah istimewa yogyakarta INDONESIA

Abstract

Abstract

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Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Tri Yulianti

Contact Email
jts@uajy.ac.id

Phone
+62274-487711

Journal Mail Official
jts@uajy.ac.id

Editorial Address
Program Studi Teknik Sipil Universitas Atma Jaya Yogyakarta Jl.Babarsari No.44 Yogyakarta

Location
Kota yogyakarta,

Daerah istimewa yogyakarta

INDONESIA