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All Journal Civil Engineering Forum Teknik Sipil Inersia : Jurnal Teknik Sipil dan Arsitektur Jurnal Ilmiah Teknik Sipil MEDIA KOMUNIKASI TEKNIK SIPIL Teknik Sipil dan Arsitektur Jurnal Teknik Sipil Jurnal HPJI (Himpunan Pengembangan Jalan Indonesia) Semesta Teknika Teknisia International Conference on Coastal and Delta Areas Jurnal Rekayasa Sipil Journal of the Civil Engineering Forum Wikrama Parahita : Jurnal Pengabdian Masyarakat BENTANG : Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil Astonjadro Jurnal Teknik Sipil dan Teknologi Konstruksi Jurnal Teknik Sipil dan Arsitektur Journal of the Civil Engineering Forum Prosiding Seminar Nasional Teknik Sipil UMS

Andreas Triwiyono

Departemen Teknik Sipil Dan Lingkungan, Universitas Gadjah Mada, Yogyakarta

Author-ID : 406126

Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences Transportation Other

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PERILAKU SAMBUNGAN BALOK I DAN KOLOM TABUNG BAJA AKIBAT BEBAN SIKLIK Hery Dualembang; Muslikh Muslikh; Andreas Triwiyono
Jurnal Teknik Sipil dan Teknologi Konstruksi Vol 7, No 2 (2021): Jurnal Teknik Sipil & Teknologi Konstruksi
Publisher : Universitas Teuku Umar

Using Concrete-Filled Steel Tube (CSFT) as a column component provides many advantages over steel columns and reinforced concrete columns. Steel tube serve as reinforcement as well as formwork for concrete filler material. Besides, restrain effect of steel tube prevent crack in the concrete. The concrete-filler on steel tube prevent local buckling and increases the strength and stiffness of the column. The lack of experience and complexity of the beam-column connection system becomes an obstacle to use the CFST as a column. In addition, strength and stiffness of the connection system on CFST should be sufficient to endure the earthquake loads. This research purpose to find alternate connection of CFST column beams and also to know hysterestis behavior, strength, stiffness and pattern of connection collapse due to cyclic loading. There are two specimens in this research, continuous joint of beam-column steel tube with concrete filler (BKM-T) and continuous joint of beam-column steel tube without concrete filler (BKM-K). BKM-K as a comparator to show an increasing strength and stiffness due to the concrete core. Load cycle of specimens refer to ACI 374.1-05. The test results showed the average maximum load (Ppeak) of 32.59 kN on BKM-K increased to 34.08 kN on BKM-T. Elastic stiffness (Ke) at BKM-K of 0.78 kN/mm increased to 1.08 kN/mm on BKM-T. BKM-T also has a larger hysteretic loop than BKM-K. In addition, BKM-K and BKM-T adequate the strong column weak beam criteria with partial ductility.

Evaluasi dan Retrofit Struktur Gedung Beton Bertulang Akibat Kebakaran Nurul Hidayati; Henricus Priyosulistyo; Andreas Triwiyono
Inersia : Jurnal Teknik Sipil dan Arsitektur Vol 17, No 1 (2021): Mei
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/inersia.v17i1.35888

ABSTRACT Several studies have been carried out related to the impact of fire on the strength of reinforced concrete material. It shows that there is a decrease in strength and a decrease in structural stiffness. The degree of damage is dependent on the temperature and duration of the fire. To ensure accessibility, the building needs to be evaluated whether the building can be re-functioned immediately. The results of site investigation are evaluated to determine the structure retrofit and reinforcement methods and cost-effectiveness compared to the cost of a new building. The office building structure under review is analytically evaluated based on SNI 1726:2019 and SNI 1727:2018. The results showed that 31% of columns and 32% of beams need to be strengthened. In addition, steel bracing and CFRP wrapping on the structural elements were applied. The cost of retrofitting required Rp2.998.488.781,07, which is lower than the cost of the new building structure, which costs Rp4.950.087.016,34. ABSTRAKBeberapa penelitian yang telah dilakukan terkait dampak kebakaran terhadap kekuatan material beton bertulang, memperlihatkan bahwa terdapat penurunan kekuatan dan kapasitas struktur. Tingkat penurunan tergantung antara lain pada suhu dan durasi kebakaran. Untuk meyakinkan tingkat fisibilitas, gedung tersebut perlu dievaluasi kemungkinan dapat atau tidaknya gedung itu difungsikan kembali. Hasil evaluasi tersebut dijadikan pertimbangan dalam menentukan metode perbaikan dan perkuatan yang efektif untuk kemudian dibandingkan dengan biaya pembangunan gedung baru. Struktur gedung kantor PLN Unit Cabang Distribusi Jakarta Raya ini akan dievaluasi dengan cara analitis berdasarkan SNI 1726:2019 dan SNI 1727:2018. Terdapat total 31% kolom dan 32% balok yang perlu diperkuat. Metode perkuatan yang digunakan adalah penambahan bracing baja dan CFRP. Material CFRP tersebut dililitkan pada elemen struktur. Biaya perkuatan yang diperlukan adalah Rp2.998.488.781,07, lebih rendah dibandingkan nilai struktur gedung, yaitu Rp4.950.087.016,34.

PENGARUH PENGGANTIAN LANTAI JEMBATAN RANGKA BAJA (REDECKING) DENGAN PANEL BAJA ORTOTROPIK TERHADAP PERUBAHAN BERAT LANTAI JEMBATAN Erik Wahyu P radana; Andreas Triwiyono
Jurnal Ilmiah Teknik Sipil Jurnal Ilmiah Teknik Sipil, Vol. 21, No. 1, Januari 2017
Publisher : Department of Civil Engineering, Udayana University

Jembatan biasa pada umumnya direncanakan dengan umur layan 50 tahun. Selama umur layan tersebut dimungkinkan terjadi kerusakan. Salah satu kerusakan jembatan rangka terjadi pada lantai jembatan. Perbaikan lantai jembatan yang terbuat dari beton bertulang biasanya memerlukan waktu lama dan sering mengganggu kelancaran lalu lintas. Penggantian lantai (redecking) dengan panel baja ortotropik (orthotropic steel deck, OSD) dapat dijadikan alternatif pengganti lantai eksisting karena instalasinya cepat dan mudah, lebih ringan dibanding lantai beton bertulang, dan kontrol mutu yang terjamin karena penggunaan material fabrikasi. OSD terbuat dari pelat baja yang diperkaku oleh rusuk (ribs) pada arah longitudinal dan transversal didukung oleh balok melintang (floorbeam). Dalam makalah ini dibahas redecking jembatan rangka baja kelas A standar Bina Marga bentang 60 m dengan OSD. Pemodelan struktur OSD dilakukan dengan bantuan software ABAQUS CAE, didisain berdasarkan pertimbangan kondisi layan, kuat batas ultimit, dan fatique dengan variasi umur rencana OSD disesuaikan dengan umur sisa jembatan (10, 20, 30, 40, dan 50 tahun) dan lalu-lintas harian rata-rata, LHR (1000, 2000, dan 3000 truk/hari), sehingga akan didapatkan kebutuhan tebal pelat (plate), rusuk (ribs), dan balok melintang (floorbeam). Selanjutnya akan diteliti perubahan berat lantai jembatan akibat redecking. Dari hasil analisis disimpulkan bahwa kombinasi umur rencana OSD dan LHR yang semakin besar menghasilkan disain OSD yang lebih berat. Untuk kombinasi umur rencana OSD 10, 20, 30, 40, dan 50 tahun serta LHR 1000, 2000, dan 3000 truk/hari didapatkan pengurangan berat lantai jembatan antara 19,802%-42,186% dengan pengurangan berat total jembatan antara 9,660%-20,581%.

PERILAKU RANGKAK SUSUT TERHADAP LENDUTAN STRUKTUR JEMBATAN BENTANG PANJANG Baskoro Abdi Praja; Andreas Triwiyono
Jurnal Teknik Sipil Vol. 13 No. 4 (2016)
Publisher : Program Studi Teknik Sipil Fakultas Teknik Universitas Atma Jaya Yogyakarta

Jembatan Lemah Ireng 1 pada ruas jalan Tol Semarang-Bawen terbuat dari beton prategang dengan panjang total 879 m. Pada masa konstruksi dua perbedaan kondisi teknik terhadap rencana, yakni perubahan material pasir dan perubahan perpindahan traveler. Keduanya diduga sebagai penyebab perbedaan elevasi desain dengan elevasi aktual sehingga dilakukan levelling aspal dengan tebal bervariasi. Jembatan ini didesain untuk memenuhi masa layan 100 tahun namun berdasarkan kondisi aktual, diperlukan peninjauan terhadap perilaku dan kuat layan jembatan hingga umur rencana. Dengan pengaruh variasi pembebanan jangka panjang (rangkak susut) dan kondisi perubahan teknis akibat penambahan aspal, penelitian rangkak susut ini perlu dilakukan untuk mengetahui perilaku lendutan pada gelagar boks jembatan hingga umur rencana. Beberapa tahapan pembebanan yang dilakukan adalah menerapkan beban levelling aspal, dan beban rangkak dan susut dengan menggunakan variasi durasi jangka panjang dengan interval 5, 10 , 15, 20, 40, 60, 80 dan 100 tahun. Analisis dilakukan secara linear statik serta memanfaatkan fasilitas Construction Stage Analysis untuk efek time-dependent pada software Midas Civil 2011. Penelitian ini dilakukan dengan hanya meninjau aksi tetap. Perilaku rangkak susut jembatan cukup signifikan di 5 tahun pertama setelah konstruksi selesai. Lendutan maksimum rangkak susut dan total berada di bentang terpanjang (P4-P5) masing-masing sebesar 17,53 dan 25,71 cm. Lendutan yang terjadi hingga umur rencana 100 tahun masih dalam batas izin, namun tetap perlu pengawasan yang terencana. Dampak minimum rangkak susut terhadap total lendutan pada jembatan Lemah Ireng 1 sebesar 45%. Hal ini menunjukkan rangkak susut terhadap defleksi total hingga umur rencana merupakan efek jangka panjang yang relatif besar.

ANALISIS PENGARUH JENIS DAN TEBAL SPRAY APPLIED MATERIALS FIREPROOFING TERHADAP KETAHANAN API BALOK BAJA NKA Agustini; Andreas Triwiyono
Jurnal Teknik Sipil Vol. 14 No. 1 (2016)
Publisher : Program Studi Teknik Sipil Fakultas Teknik Universitas Atma Jaya Yogyakarta

Protection against fire is important to maintain the strength of the structure. Fireproofing can be used as an anticipation to reduce the spread of the fire. Evaluation the effect of fire on structural elements is generally performed by a numerical approach. Analysis of simple beam IWF 150x75x5x7 with 3,5 span length using varied fireproofing such as CAFCO 300, Carboline Type 5 MD and Typo WR-AFD was conducted with Abaqus CAE 6.11-1. Nonlinear material properties of steel based on Eurocode 3 while thermal properties of fireproofing are constant. Thickness variation of fireproofing are 10 and 20 mm. Pressure load was carried on the top flange of steel beam. ASTM E-119 used as a thermal load by conduction on 3 sides (left, right and bottom) with duration of 2 hours. The results showed that type and thickness variation of the fireproofing has a significant effect on the fire resistance of steel beams. The highest temperatures occur when steel coated by Typo WR-AFP and the lower temperatures occur when steel coated by CAFCO 300. Maximum deflection of steel beam occurred when steel coated by Typo WR-AFD. Steel beam with Typo WR-AFD experiencing a critical deflection with the fastest time of 4.80 minutes at 10 mm thick and 9.10 min at 20 mm thick. Steel beam with 10 mm thick of fireproofing achieve yield stress when the time 14.03, 8.86 and 5, 12 minutes for fireproofing CAFCO 300, Carboline Type 5 MD and Typo-AFD WR. Steel beam with 20 mm thick of fireproofing experiencing yield stress only on Typo WR-AFD at 10.22 minutes. Abstrak : Perlindungan terhadap api (kebakaran) merupakan hal penting untuk mempertahankan kekuatan struktur sehingga masih dapat menahan beban rencana. Lapisan fireproofing pabrikasi dapat digunakan sebagai antisipasi untuk mengurangi rambatan panas akibat kebakaran. Evaluasi pengaruh kebakaran pada elemen struktur umumnya dilakukan dengan pendekatan numerik. Analisis pengaruh ketebalan dan sifat termal fireproofing jenis spray applied materials bervariasi yaitu CAFCO 300, Carboline Type 5MD dan Typo WR-AFD terhadap ketahanan api balok sederhana IWF 150x75x5x7 menggunakan Abaqus CAE 6.11. Material baja bersifat non linier sesuai Eurocode 3 sedangkan sifat termal fireproofing bersifat konstan. Variasi ketebalan lapisan digunakan 10 dan 20 mm. Beban tekan (pressure loads) dikerjakan di sayap atas balok. Beban termal menggunakan standar api ASTM E-119 secara konduksi di 3 sisi (samping kiri, kanan dan bawah) dengan durasi 2 jam. Hasil penelitian menunjukkan variasi jenis dan ketebalan fireproofing memberikan pengaruh signifikan terhadap ketahanan api balok baja. Suhu baja tertinggi terjadi saat baja dilapisi fireproofing jenis TYPO WR-AFP dan terendah saat dilapisi fireproofing CAFCO 300. Baja dengan lapisan fireproofing TYPO menghasilkan lendutan paling besar dibanding baja dengan lapisan fireproofing lainnya Baja dengan lapisan fireproofing Typo WR-AFD mengalami lendutan kritis dengan waktu tercepat yakni 4,80 menit saat tebal 10 mm dan 9,10 menit tebal 20 mm Baja dengan lapisan fireproofing 10 mm mencapai tegangan leleh saat waktu 14,03 , 8,86 dan 5, 12 menit untuk fireproofing CAFCO 300, Carboline Type 5 MD dan Typo WR-AFD. Baja dengan tebal fireproofing 20 mm mengalami tegangan leleh hanya pada jenis Typo WR-AFD saat 10,22 menitKata kunci :jenis fireproofing, tebal fireproofing, temperatur, lendutan, tegangan.

Perkuatan Lentur Pelat Lantai Tampang Persegi dengan Penambahan Tulangan Tarik dan Komposit Mortar Juandra Hartono; Iman Satyarno; Andreas Triwiyono
Semesta Teknika Vol 13, No 1 (2010): MEI 2010
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/st.v13i1.720

Overloading of structures can cause failure. In order to continue using them, strengthening is required. In this research elastic strengthening was carried out on concrete floor plates by means of tensile reinforcement addition, and mortar composite additionto apply epoxy resin. Four reinforced concrete slabs, consisted of one control slab (PK), one monolith slab (PM), one strengthened slab (PPE) and one unstrengthened slab (PPTE). Specimen dimensions were 700 mm x 1500 mm x 60 mm for the PK, and 700 mm x 1500 mm x 100 mm for the others. Specimens were placed on a simply supported loading frame, and statically loaded at their mid-span. Numerical analysis using Response-2000 software package was carried out for comparison with the experiment al result. It was found out that the flexural capacity of the PK, PPE, PPTE and PM specimens are 5,99 kNm, 12,52 kNm, 13,87 kNm and 21,38 kNm, respectively. In comparison with that of thePK, flexural capacity of the PPE and PPTE specimens was found to increase by 109,019 % and 131,55 %, respectively. The increase of stiffness was 324,77 % and 430,21 % for the PPE and PPTE specimens, respectively. The ductility factor of the PPE and PPTE increase 29,63 % and 19,03 %, respectively . The PK and PM specimen s experienced flexural failure, while the PPE and PPTE specimens experienced debondingfailure.

PENILAIAN FASILITAS JALUR PEDESTRIAN DARI ASPEK SAFETY, HEALTH, AND ENVIRONMENT (SHE) Dinda Fardila; Henricus Priyosulistyo; Andreas Triwiyono
Inersia : Jurnal Teknik Sipil dan Arsitektur Vol 14, No 2 (2018): Desember
Publisher : Universitas Negeri Yogyakarta

ABSTRACTPedestrian way is a space providing services for pedestrian in carrying out their activities. This research aims to evaluate the liability of the pedestrian facilities in complying the prevailing standards and safety, health, and environment (SHE) instead of determining the priority rank for improving the performance of pedestrian facilities. This research was conducted on the pedestrian way of Malioboro area in Yogyakarta, by field survey on 23-27 January 2018. The research used questionnaires with incidental sampling technique. The data was performed and statistically analyzed by SPSS program in terms of Importance Performance Analysis (IPA) method and inference analysis using Rank Spearman's truth test. The result of this research showed that the pedestrian way had generally met the standards (57.14%) but several facilities (38.10%) did not meet the criteria and 4.76% was not available in the pedestrian way of Malioboro.The level of performance of pedestrian facilities based on SHE was mostly high (satisfied). The facilities that must be improved were the cleanliness of the pedestrian way and the toilet. Some respondences were still able to accept the conditions as follow: the speed of motor bike, the noises, street vendor layout, shop sign layout and the quality of building materials. Keywords: Environment, Importance Performance Analysis (IPA), Pedestrian way, Safety, Health ABSTRAKJalur pedestrian merupakan ruang yang memberikan layanan kepada pejalan kaki dalam melakukan aktivitasnya. Kajian ini bertujuan untuk mengevaluasi kelayakan kondisi fasilitas jalur pedestrian terhadap standar yang berlaku, safety, health, and environment (SHE), dan menentukan prioritas layanan yang diperlukan untuk peningkatan kinerja fasilitas jalur pedestrian. Kajian ini dilakukan pada jalur pedestrian Kawasan Malioboro dengan cara survey lapangan pada tanggal 23-27 Januari 2018. Kajian ini menggunakan kuesioner berskala Likert dengan teknik pengambilan sampel insidental sampling.Analisis data menggunakan analisis statistik deskriptif, metode Importance Performance Analysis (IPA) dan analisis inferensi (uji korelasi Spearman Rank). Hasil kajian menunjukkan bahwa fasilitas jalur pedestrian telah memenuhi standarsebesar 57,14%, tetapi 38,10% tidak memenuhi kriteria dan 4,76% fasilitas tidak terdapat di jalur pedestrian kawasan Malioboro. Fasilitas yang harus ditingkatkan kinerjanya pada prioritas utama adalah tingkat kebersihan pedestrian dan toilet. Beberapa pedestrian masih dapat menerima kondisi berikut :kecepatan pengendara bermotor, kebisingan, tata letak PKL, tata letak papan nama toko dan kualitas bahan bangunan. Kata kunci: Environment, Importance Performance Analysis (IPA), Jalur pedestrian, Safety, Health

KUAT TARIK DAN POLA KEGAGALAN KOMBINASI SAMBUNGAN BAUT DAN SEKRUP PADA BAJA CANAI DINGIN Muhammad Nur Ikhsan; Ali Awaludin; Andreas Triwiyono
Inersia : Jurnal Teknik Sipil dan Arsitektur Vol 16, No 2 (2020): Desember
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/inersia.v16i2.36900

ABSTRAK Saat ini, material Cold Formed Steel (CFS) lebih umum digunakan karena kekuatan tariknya yang diketahui daripada material Hot Rolled Steel (HRS). Bahan konstruksi CFS tidak hanya digunakan untuk fungsi struktur atap, tetapi juga banyak digunakan sebagai struktur bangunan. Perilaku koneksi kombinasi baut dan sekrup CFS diidentifikasi untuk mengetahui jenis kegagalan dan kapasitas sambungan. Beban maksimum pengujian tarik diterapkan pada dua jenis bahan CFS. Spesimen dalam penelitian ini terdiri dari dua variasi ukuran lembar CFS 40 mm x 340 mm dan 40 mm x 360 mm. Lembar pertama digunakan untuk sambungan sekrup, baut dilengkapi ring, dan baut tanpa ring. Lembar kedua digunakan untuk sambungan kombinasi sekrup dengan baut tanpa ring dan sambungan kombinasi sekrup dengan baut dilengkapi ring. Hasil penelitian menunjukkan bahwa nilai slip spesimen sambungan baut dilengkapi ring lebih besar daripada spesimen sambungan baut tanpa ring. Nilai kapasitas tarik yang diperoleh dari koneksi kombinasi baut dengan washer dan sekrup lebih besar daripada yang tanpa ring dengan sekrup. Pola kegagalan pengujian tarik adalah kegagalan sobek dan kegagalan patah. Kata kunci: kombinasi, sambungan, baut, sekrup, CFS ABSTRACTNowadays, Cold Formed Steel (CFS) materials is more commonly used because of its known tensile strength than Hot Rolled Steel (HRS) material. CFS construction material is not only used for roof structures function, but also widely used as building structures. The behavior of bolt and screw combination connections of CFS was identified to know the type of failure and connection capacity. A maximum load of tensile testing was applied to two type of CFS materials. The specimens in this study consisted of two variations CFS sheet sizes 40 mm x 340 mm and 40 mm x 360 mm. The first sheet is used for screw connectors, bolt with washers, and bolt without washers. The second sheet is used for screw connectors combined with bolts without washer and screw connectors combined with bolts and washer. The results showed that the slip value of the bolt connection specimens with washers was greater than the bolt connection specimens without washer. The tensile capacity value obtained by the bolt combination connection with washer and screw was more rodust than the one without washer and screw. The failure patterns of tensile testing were a pull-through and fracture failures. Keywords: combination, connection, bolt, screw, CFSABSTRAK Saat ini, material Cold Formed Steel (CFS) lebih umum digunakan karena kekuatan tariknya yang diketahui daripada material Hot Rolled Steel (HRS). Bahan konstruksi CFS tidak hanya digunakan untuk fungsi struktur atap, tetapi juga banyak digunakan sebagai struktur bangunan. Perilaku koneksi kombinasi baut dan sekrup CFS diidentifikasi untuk mengetahui jenis kegagalan dan kapasitas sambungan. Beban maksimum pengujian tarik diterapkan pada dua jenis bahan CFS. Spesimen dalam penelitian ini terdiri dari dua variasi ukuran lembar CFS 40 mm x 340 mm dan 40 mm x 360 mm. Lembar pertama digunakan untuk sambungan sekrup, baut dilengkapi ring, dan baut tanpa ring. Lembar kedua digunakan untuk sambungan kombinasi sekrup dengan baut tanpa ring dan sambungan kombinasi sekrup dengan baut dilengkapi ring. Hasil penelitian menunjukkan bahwa nilai slip spesimen sambungan baut dilengkapi ring lebih besar daripada spesimen sambungan baut tanpa ring. Nilai kapasitas tarik yang diperoleh dari koneksi kombinasi baut dengan washer dan sekrup lebih besar daripada yang tanpa ring dengan sekrup. Pola kegagalan pengujian tarik adalah kegagalan sobek dan kegagalan patah. Kata kunci: kombinasi, sambungan, baut, sekrup, CFS ABSTRACTNowadays, Cold Formed Steel (CFS) materials is more commonly used because of its known tensile strength than Hot Rolled Steel (HRS) material. CFS construction material is not only used for roof structures function, but also widely used as building structures. The behavior of bolt and screw combination connections of CFS was identified to know the type of failure and connection capacity. A maximum load of tensile testing was applied to two type of CFS materials. The specimens in this study consisted of two variations CFS sheet sizes 40 mm x 340 mm and 40 mm x 360 mm. The first sheet is used for screw connectors, bolt with washers, and bolt without washers. The second sheet is used for screw connectors combined with bolts without washer and screw connectors combined with bolts and washer. The results showed that the slip value of the bolt connection specimens with washers was greater than the bolt connection specimens without washer. The tensile capacity value obtained by the bolt combination connection with washer and screw was more rodust than the one without washer and screw. The failure patterns of tensile testing were a pull-through and fracture failures. Keywords:combination, connection, bolt, screw, CFS

STUDI NUMERIK RESPON STRUKTUR MODIFIKASI BANTALAN BETON UNTUK NON-BALLASTED TRACK Danang Purwanto; Iman Satyarno; Andreas Triwiyono
TEKNISIA Vol. XXIV, No. 1, Mei 2019
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.vol24.iss1.art2

According to Rencana Induk Perkeretaapian Nasional (RIPNas), making plans for the development of Indonesian railways until the next 2030. The targets for the development of railway networks and services to be achieved in 2030 include a national network of 12,100 km (spread on Java-Bali, Sumatra, Kalimantan, Sulawesi and Papua). Construction of railway track is generally divided into two main types, namely, ballasted tracks and non-ballast tracks. In this study the non-ballasted track or ballastless track is to modify the width of the sleeper that will be used without using ballasts on the railroad tracks. This is done to reduce the use of coarse aggregates in ballasts so that if used in areas that do not have natural resources in the form of coarse aggregates a railway track can be built. The research will be carried out according to the condition of the soil gravel, dense sand, medium dense sand, silty medium dense dan loose sand. Different types of soil cause different responses or behaviors from the modification of the sleeper that are located above the ground. This study will discuss the analysis of rail displacement and rail bending stress that occur in the modification of railroad concrete sleeper for non-ballast use in some soil conditions. The study was conducted with software SAP2000 version 2014 to analyze displacement and rail bending stress on concrete sleeper modification with dimensions 400 x 2440 mm2; 1200 x 2440 mm2; 2000 x 2440 mm2; 2800 x 2440 mm2 dan 3600 x 2440 mm2 for each different type of soil to determine the dimensions of modification of concrete sleeper that can be used. According AREMA(1999) Result of rail displacement rail may not exceed 6 mm and rail bending stress may not exceed 75 N/mm2.

KUAT TEKAN PANEL DINDING BETON RINGAN EXPANDED POLYSTYRENE DENGAN LAPIS LUAR PAPAN KALSIUM SILIKAT Desi Maryani; Ashar Saputra; Andreas Triwiyono
TEKNISIA Vol. XXIV, No. 1, Mei 2019
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.vol24.iss1.art1

The need for housing in Indonesia reaches around 1 million houses per year is the reason behind an increasing demand for building materials. Prefabricated wall panels can be used as alternative building materials that have easy and fast advantages in installation. In addition, the use of precast wall panels will also save labor costs. In this study, expanded polystyrene (EPS) lightweight concrete wall panels were a composite with calcium silicate boards. Furthermore, the unity of these materials are called a sandwich panel. The purpose of this study was to determine the potential use of sandwich panels as structural wall panels in terms of compressive strength. Test specimens were 9 EPS panels measuring 1800x610x75mm; 3 of them were a composite with GRC board, 3 other with GRC board outer layer and bolt connector, and 3 panels without reinforcement. The used calcium silicate board is a trade name of GRC board with a thickness of 4mm. Compressive strength testing is carried out referring to SNI 03-3122-1992 (Fibrous Lightweight Concrete Panel).The test results obtained the compressive strength of PP-T, PGP-T, PGB-T panels in a row of 0.72 MPa, 0.84 MPa, and 1.43 MPa. The pattern of damage to the test object was marked by the release of the outer layer of the GRC board and the wall panel was fractured. It can be concluded that the addition of the GRC board outer layer and bolt connector can increase the compressive strength of the wall panel up to 200%. In contrast, the PP-T, PGP-T, and PGB-T panels do not meet the requirements of SNI 03-3122-1992. The resulted compressive strengths are so low that make the expanded polystyrene concrete panel is not avaiable for bearing wall purpose.

Co-Authors Albert Aun Umbu Nday Ali Awaludin Ali Awaludin Ali Awaludin Aminullah , Akhmad Aminullah, Akhmad Arief Setiawan Budi Nugroho Ashar Saputra Ashar Saputra Ashar Saputra Astuti, Yana Ay Lie Han Bambang Supriyadi Baskoro Abdi Praja Baskoro Abdi Praja, Baskoro Abdi Dahlia Patah, Dahlia Danang Purwanto Desi Maryani Dicky Rahadian Mahendra Djoko Sulistyo Dualembang, Hery Egatama, Henda Febrian Erik Wahyu P radana Erik Wahyu Pradana Eugenius Pradipto Fardila, Dinda Ferry Hariman Gatot Subagio H, I Gede Agung Shri Parta Hary Christady H. Henricus Priyosulistyo, Henricus Hsuan-Teh Hu I Gusti Lanang Bagus Eratodi Ignatius Christiawan Iman Satyarno Iman Satyarno Irkhas Bayu Faveryan Juandra Hartono Juandra Hartono, Juandra Kasih Jhoniper Simanjuntak Kukuh Adhi Kafie Lau, Debora Marsuki M. Marsuki M. Muh. Subhan A.K. Muhammad Nur Ikhsan Muhammad, Heidi Munthe, Agyanata Tua Muslikh Muslikh Muslikh Muslikh NKA Agustini NKA Agustini, NKA Nurul Hidayati Priyosulistyo Priyosulistyo Purwanto Purwanto Rachmad Hidayat Saroj Mandal Suprapto Siswosukarto Suprapto Siswosukarto Suprapto Siswosukarto Viorenza Everlyn

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