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Lilis Tiyani
Jurusan Teknik Sipil, Politeknik Negeri Jakarta
Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering Transportation Other

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Comparative Study of Disaster Regulations in Analyzing Vulnerability Level of Elementary School Building Structures in Yogyakarta Lilis Tiyani; Hakas Prayuda; Bagus Soebandono
Rekayasa Sipil Vol 15, No 3 (2021)
Publisher : Department of Civil Engineering, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This research was conducted to compare several regulations that evaluate the level of vulnerability of school buildings in Yogyakarta. The regulations used in this study are a guide to assessing and repairing damage to public housing buildings due to the earthquake according to the Department of Public Works in 2000, technical guidelines for safe school rehabilitation according to the National Disaster Management Agency in 2011, a broken one or two-story simple building block safety check guide due to the earthquake according to the 2009 World Seismic Safety Initiative and using rapid visual screening of building for potential seismic hazards according to the Federal Emergency Management Agency No. 154 of 2002. The 25 schools selected in this study were located in areas prone to earthquakes, volcanoes erupted and prone to landslides. Through this research, the results of the appropriate regulations were obtained to evaluate the rapid level of vulnerability of buildings to disasters and evaluation of certain disaster cases was needed because the regulations did not accommodate all types of disasters.
EVALUASI KONDISI LINGKUNGAN DAN SARANA PENYELAMATAN PADA GEDUNG PERKULIAHAN TERHADAP BAHAYA KEBAKARAN Fadillawaty Saleh; Sinta Rizky Amalia; Hakas Prayuda; Lilis Tiyani; Bella Lutfiani Al Zakina
TEKNISIA Vol. XXVI, No. 1, Mei 2021
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.vol26.iss1.art4

Abstract

Many aspects must be considered in the building's design so that the construction is sturdy and can be used according to its function. An important aspect that is often overlooked is the aspect of fire safety. This study aims to evaluate environmental conditions and safety facilities in buildings against fire hazards. The buildings reviewed are the Postgraduate Building, E6, E7, and F3 of the Muhammadiyah University of Yogyakarta. The research method used in this research is a qualitative approach, and the primary data is obtained by direct observation in the field and interviews with the person in charge of the building. This study indicates that the environmental conditions of the postgraduate building, E6, E7, and F3, are not in good condition because each building gets a condition value of 51.67%; 50.56%; 52.22%; and 50%. The rescue facilities in the postgraduate building, E6, and E7 are good; although there are some shortcomings, the value of the condition of each building is 85.98%, 87.41%, and 87.41%. The rescue facility in the F3 building is quite good, with a condition value of 65.81%.
PEMBUATAN INSTALASI PENGOLAH CUKA KAYU DI KELURAHAN BEJI TIMUR, DEPOK, JAWA BARAT Jonathan Saputra; Imam Hariadi S; Lilis Tiyani
JMM (Jurnal Masyarakat Mandiri) Vol 6, No 3 (2022): Juni
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (664.246 KB) | DOI: 10.31764/jmm.v6i3.8501

Abstract

Abstrak: Lingkungan di sekitar RT 04-05 RW 05, Kelurahan Beji Timur yang masih asri membuat banyak sampah dari tumbuhan, seperti sampah kayu/ranting/daun kering. Masyarakat di Kelurahan Beji Timur ini pada dasarnya sudah mengelola, merawat serta dan memelihara lingkungan. Namun upaya tersebut belum mendapatkan hasil yang optimal dalam pengelolaan sampahnya. Tujuan pengabdian kepada masyarakat ini adalah untuk membuat instalasi pengolah cuka kayu agar sampah kayu/ranting/daun dapat terkelola dengan baik dan terciptanya lingkungan yang sehat. Kegiatan pengabdian dilakukan dengan metode melakukan persiapan terlebih dahulu, melakukan kunjungan survei terkait peninjauan lokasi lalu membuat tempat instalasi pengolahan cuka kayu dari sampah kayu/ranting/daun. Cuka kayu yang dihasilkan kemudian dikemas ke dalam kemasan botol, sehingga produk kegiatan Pengabdian Kepada Masyarakat ini dapat berkesinambungan dan membantu memberdayakan masyarakat. Kegiatan ini bekerjasama dengan mitra-mitra pengabdian yang terlibat, yaitu tim pengelola sampah dan penanggungjawab lingkungan di Kelurahan Beji Timur. Hasil pengabdian menunjukkan bahwa pembuatan instalasi pengolahan cuka kayu telah memberikan pengaruh dan dampak positif yang signifikan terhadap persepsi warga akan penanganan sampah kayu/daun/ranting di lingkungan tempat tinggal mereka. Hal ini terlihat dari hasil analisa hipotesis yang dilakukan oleh Tim Abdimas dengan regresi linear sederhana setelah terselesaikannya pembuatan tempat instalasi pengolahan cuka kayu. Abstract:  The environment around RT 04-05 RW 05, East Beji Village, which is still beautiful, makes a lot of waste from plants, such as wood waste/branches / dry leaves. The community in East Beji Village has managed, maintained, and maintained the environment. However, these efforts have not yet received optimal results in waste management. The purpose of this community service is to make a wood vinegar processing installation so that wood waste/branches/leaves can be managed properly and create a healthy environment. Service activities are carried out by making preparations in advance, conducting survey visits related to site reviews, and then making a wood vinegar processing plant from wood waste/twigs/leaves. The wood vinegar produced is then packaged into bottles, so that the product of this Community Service activity can be sustainable and help empower the community. This activity is in collaboration with the service partners involved, namely the waste management team and environmentally responsible persons in East Beji Village. The results of the service show that the manufacture of wood vinegar processing plants has had a significant positive influence and impact on residents' perceptions of handling wood waste/leaves/twigs in the environment where they live. This can be seen from the results of hypothesis analysis carried out by the Abdimas Team with a simple linear regression after the completion of the manufacture of a wood vinegar processing plant.
Visual Assessment pada Bangunan Gedung Terhadap Sistem Keamanan Kebakaran Fanny Monika; Siti Solihah; Hakas Prayuda; Lilis Tiyani; Bella Lutfiani Al Zakina
Bulletin of Civil Engineering Vol 2, No 1 (2022): Februari
Publisher : Civil Engineering Department, Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/bce.v2i1.12853

Abstract

Fire is a hazard caused by an uncontrollable flame, resulting in both material and moral losses. Fire problem occurs when firefighting equipment is often ignored during the construction planning of a building, for that we need to check and supervision the fire safety system in multilevel buildings. The purpose of this research is to determine the level of reliability of building fire safety system in Forriz Hotel Yogyakarta and is expected to be a refence fire protection system in other commercial buildings in Yogyakarta. this research used a method by direct observation on fire protection system with reference to fire safety inspection guidelines for building (Pd-T-11-2005-C). The result of this research is reliability value of building safety for each component consisting of the value of completeness of the site of 22,7% (less), means of the rescue of 16,4% (less), active protection of 15,1% (less), passive protection of 24,3 (less). The calculation results for the reliability of the building of Hotel Forriz Yogyakarta is 78,5% or in the Enough category. Based on the research result Hotel Forriz Yogyakarta cannot be used for reference to the implementation of the fire protection system in buildings. 
Prediksi Kuat Lentur Balok Beton dengan Menggunakan Program Response-2000 dan Persamaan Pendekatan Fanny Monika; Kholil Muqorrobin; Hakas Prayuda; Talitha Zhafira; Lilis Tiyani
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 28, Nomor 1, JULI 2022
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (393.459 KB) | DOI: 10.14710/mkts.v28i1.42017

Abstract

Flexural strength is one of the mechanical properties of concrete that should be tested, especially for concrete that serves as a beam and is subjected to flexural loads. However, the assessment of flexural strength in concrete frequently relies solely on a mathematical approach that several previous researchers have found. Concrete structures continue to evolve, particularly in the use of more diverse and sustainable constituent materials. Meanwhile, the generated equations use conventional concrete without adding cementitious or replacement components. Therefore, it is necessary to investigate whether these equations can accurately predict the flexural strength of concrete with diverse constituent materials. This investigation was undertaken by reviewing 72 data sets derived from the experiment by previous researchers. Each set of test data will be compared to various formulas and will also be compared to the analysis performed using Response-2000. The results show that the correlation between Response-2000 and the experiment was 0.8207 with the linear regression equation y = 1.1326x + 1.0016. The flexural strength analysis using various approach formulas resulted in an average correlation R² of 0.8246, or 82.46% correlated to the results of the flexural strength of laboratory tests.
RESPON STRUKTUR AKIBAT PENEMPATAN DILATASI PADA BANGUNAN DENGAN KETIDAKBERATURAN HORIZONTAL Lilis Tiyani; Amalia; Rezki Nur Fadlli; Jonathan Saputra
Jurnal Ilmiah Teknologi Infomasi Terapan Vol. 9 No. 1 (2022)
Publisher : Universitas Widyatama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33197/jitter.vol9.iss1.2022.951

Abstract

The placement of dilation in the building structure with horizontal irregularity causes a different response to the structure during an earthquake, because the structure is divided into several individual structures that stand alone so that they are different from the original structure. The proper placement of the dilation in a building will reduce the risk of collapse of the building during an earthquake as well potentially making structures simpler and more efficient. This study uses the design analysis method to compare the earthquake shear force, structural response, and internal forces in the structure due to the placement of the X-direction and Y-direction Dilatation. greater than the X direction dilatation, which is 42% in the X direction and 38% in the Y direction. The deviation that occurs in the Y direction dilation is greater than the X direction dilatation. X, but the internal force due to the Y direction of dilation on the beam is greater than the X direction dilation placement. So that the use of the Y direction dilation is slightly better than the use of the X direction dilatation in several things, such as the earthquake force and the inner force on the smaller column.
PENGARUH SUBTITUSI SLAG NIKEL DAN FLY ASH TERHADAP KUAT TEKAN BETON SEBAGAI PEMECAH GELOMBANG Sukarman; Erlina Yanuarini; Lilis Tiyani; Shofie Rania Salsabila; Viona Seren
Jurnal Ilmiah Teknologi Infomasi Terapan Vol. 9 No. 1 (2022)
Publisher : Universitas Widyatama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33197/jitter.vol9.iss1.2022.952

Abstract

Abstract Nickel slag is effluent from the nickel ore waste management process which has no economic value. Based on the visual aspect, nickel slag has a physical form that resembles coarse or fine aggregate. The chemical composition of the most nickel slag is silica with a percentage of 41.47% which is expected to strengthen the hydration process and increase the compressive strength of concrete. Concrete treatment is one of the things that can affect the strength of concrete. Concrete treatment generally uses water that is free from chemical and other substances that can affect the quality of concrete. Concrete in buildings located around the sea will experience direct contact with sea water, while sea water contains elements of salt and high chemical content which can cause a decrease in the quality of concrete. This decrease in the quality of concrete will affect the mechanical properties of the concrete, especially the compressive strength of the concrete itself. Therefore, this study aims to identify the effect of using nickel slag as a substitute for coarse aggregate with seawater immersion on the compressive strength of concrete. The method in this study is using the experimental method by making 48 concrete specimens with 4 variations, namely B.BP, L.BP, B.SN, and L.SN with testing the compressive strength of concrete at the age of 7, 14, 21, and 28 days. The results of the compressive strength test at the age of 7.14, and 21 days, the highest percentage of the compressive strength of concrete was 58.25%; 50.06%; 35.93%; on the variation of B.SN to the variation of B.BP, while at the age of 28 days the variation of L.SN experienced an increase in the compressive strength of concrete by 18.54% against the variation of B.BP. Keywords: Compressive strength; nickel slag; sea water; soaking; subtitution
ANALISIS PENGARUH PENAMBAHAN LIMBAH PAKU TERHADAP SIFAT MEKANIS BETON NORMAL Teuku Muhammad Bhima; Muhtarom Riyadi; Lilis Tiyani
Construction and Material Journal Vol. 4 No. 3 (2022): Construction and Material Journal Vol. 4 No. 3 November 2022
Publisher : Politeknik Negeri Jakarta

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Abstract

The use of steel fibres as a concrete mixture can prevent cracks due to loading, the heat of hydration, and shrinkage. However, the availability of steel fibre is still limited, and it is expensive enough that alternative materials are required, which may reduce the economic value. This research aims to analyse the effect of an easy-to-find alternative material, namely plywood nail waste, on the properties of normal concrete. Concrete properties tests include compressive strength, split tensile strength, flexural strength, and modulus of elasticity. This research was conducted by mixing concrete with nail waste material with variations of 0%, 1%, 1.5%, and 2% of the weight of the concrete. Concrete samples in the shapes of cylinders and beams are required for this study.  The results showed that using nail waste can reduce the compressive strength of 28-day-old concrete and the modulus of elasticity as the variation of the nail waste increases. However, the use of nail waste in certain variations can increase the split tensile strength and flexural strength of concrete. Split tensile strength measurements after adding nail waste with varying amounts of 0%, 1%, 1.5%, and 2% were 2.279 MPa, 2.408 MPa, 2.068 MPa, and 1.583 MPa. The optimum variation was 1%, with an increase of approximately 5.64% of concrete without mixed waste nails. The variation of nail waste also produces flexural strength values of 1.95 MPa, 2.47 MPa, 2.21 MPa, and 1.43 MPa, so the optimum variation is 1%, with an increase of about 26.67% from the concrete without nail waste mixture. Keywords: Normal Concrete, Waste Nail, Mechanical Properties.
Pengujian Terhadap Kekuatan Dan Pelapukan Beton Dengan Pengukuran Kekerasan Dan Karbonasi Dam Concrete Face Dan Spillway Pada Bendungan Cirata Novi Andhi Setyo Purwono; Lilis Tiyani; Altho Sagara; Multilawati Nasution
Jurnal Deformasi Vol. 8 No. 1 (2023): JURNAL DEFORMASI
Publisher : Universitas PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31851/deformasi.v8i1.11739

Abstract

Bendungan merupakan salah satu sarana multifungsi yang memiliki peranan penting bagi kehidupan manusia. Guna menjaga dan meningkatkan jaminan keamanan bendungan dan pengoperasiannya maka diperlukan pemeriksaan teliti (assesment) melalui penerapan metodologi test/pengujian yang memadai. Tujuan dari penelitian ini adalah mengetahui tingkat pelapukan dan kekuatan struktur beton concrete face dan spillway sejak dini guna menghindari kerusakan atau kerugian yang lebih besar dikemudian hari. Pekerjaan pengukuran dengan melakukan pengukuran/pengujian kekuatan beton secara langsung (non destructive – direct test) melalui uji tekan permukaan beton. Hasil dari pengujian hammer test dan karbonasi yang dilakukan di area concrete faced dan pharaphet adalah kuat tekan beton rata-rata pada dam concrete faced adalah sebesar 343 kg/cm2, rata-rata tebal beton yang mengalami karbonasi adalah sebesar 0,5 mm. Kuat tekan beton rata-rata pada dam pharaphet adalah sebesar 391 kg/cm2, rata-rata tebal beton yang mengalami karbonasi adalah sebesar 1 mm. Pengujian non-destructive adalah pengujian dengan schmidt hammer. Hasil pengujian ini adalah kuat tekan beton rata-rata pada spillway inlet adalah sebesar 378 kg/cm2, rata-rata tebal beton yang mengalami karbonasi adalah sebesar 0,83 mm. Kuat tekan beton rata-rata pada outlet spillway adalah sebesar 271 kg/cm2, rata-rata tebal beton yang mengalami karbonasi adalah sebesar 0,55 mm. Kuat tekan beton rata-rata pada bottom spillway outlet adalah sebesar 243 kg/cm2, rata-rata tebal beton yang mengalami karbonasi adalah sebesar 0,55 mm
PEMANFAATAN SUBSTITUSI SLAG WELDING SAW SEBAGAI AGREGAT KASAR PADA BETON Lilis Tiyani; Sukarman; Andika Sastro Widjoyo
Jurnal Ilmiah Teknologi Infomasi Terapan (JITTER) Vol. 10 No. 1 (2023)
Publisher : Universitas Widyatama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33197/jitter.vol10.iss1.2023.1542

Abstract

This research, steel welding waste called slag welding SAW was used as a substitute for coarse aggregate in concrete with a content of 50%. This study aims to determine the utilization of SAW welding slag waste as a substitute for coarse aggregate concrete by testing the compressive strength, tensile strength, and flexural strength. The concrete mix design plan uses quality of 25 MPa, using SNI 2834-2000. The specimens for testing the compressive strength of normal concrete and concrete slag welding SAW at the age of 14, 21, and 28 days totaling 18 cubes with a size of 15 x 15 x 15 cm, testing the tensile strength of concrete slag welding SAW at the age of 28 days totaling 2 shapes cylinder with a size of 30 x 15 cm, as well as testing the flexural strength of concrete slag welding SAW at the age of 28 days totaling 2 blocks with a size of 50 x 10 x 10 cm. Slump test of fresh concrete design (60-180) mm. The average compressive strength test results for normal concrete at 28 days were 16,465 MPa. The results of the average compressive strength test of concrete slag welding SAW at 28 days were 15,518 MPa. The average tensile strength test results of slag welding SAW concrete at 28 days were 1.36 MPa. The average flexural strength test results of slag welding SAW concrete at 28 days were 1.17 MPa.
Co-Authors Amalia Andika Sastro Widjoyo Bagus Soebandono Bella Lutfiani Al Zakina Fadillawaty Saleh Hakas Prayuda Imam Hariadi S Kholil Muqorrobin Monika, Fanny Muhtarom Riyadi Multilawati Nasution Novi Andhi Setyo Purwono Rezki Nur Fadlli Sagara, Altho Saputra, Jonathan Shofie Rania Salsabila Sinta Rizky Amalia Siti Solihah Sukarman Sukarman Talitha Zhafira Teuku Muhammad Bhima Viona Seren Yanuarini, Erlina