Perencanaan Struktur Gedung Kuliah 4 Lantai Dengan Sistem Daktail Terbatas

Perencanaan suatu struktur gedung harus direncanakan sesuai standar, kuat, dan aman. Suatu struktur bangunan yang kokoh dan kuat tapi juga efisien memerlukan suatu perencanaan struktur yang baik dengan menggunakan peraturan – peraturan perencanaan secara tepat dan benar. Oleh sebab itu dilakukan perencanaan gedung kuliah 4 lantai ini dengan mengacu pada Tata Cara Perencanaan Struktur Beton untuk Bangunan Gedung (SNI 03-2847-2002). Beban-beban yang ditinjau untuk perencanaan mengacu pada Peraturan Pembebanan Indonesia untuk gedung 1983. Perencanaan struktur gedung kuliah 4 lantai ini meliputi perencanaan struktur atas dan struktur bawah. Dalam perencanaan balok diperoleh harga momen, gaya lintang dan gaya torsi tiap – tiap lantai yang bervariasi. Dari harga yang berbeda – beda tersebut diambil harga – harga yang maksimum dan dikelompokkan untuk setiap lantainya dengan tujuan untuk memudahkan perhitungan. Perencanaan struktur atas menggunakan SAP2000 versi 14, sedangkan struktur bawah direncanakan secara manual. Struktur atas meliputi perencanaan balok, kolom, dan lantai gedung, sedangkan struktur bawah meliputi perencanaan pondasi footplate. Jenis tanah, daya dukung tanah, kedalaman tanah keras, dan beberapa hal yang menyangkut keadaan tanah erat kaitannya dengan jenis pondasi yang dipilih. Pembebanan yang ditinjau untuk perencanaan elemen struktur adalah beban mati, beban hidu

Pengendalian Kecepatan Motor DC Magnet Permanen Dengan Menggunakan Sensor Kecepatan Rotari

Pengendalian kecepatan motor dengan cara motor dikondisikan agar tidak mencapai torsi dan kecepatan maksimal merupakan salah satu cara untuk mendapatkan efisiensi konsumsi daya baterai pada suatu sistem sepeda listrik. Pada penelitian ini pengendalian kecepatan motor dilakukan dengan mengaktifkan motor dimana roda sepeda disimulasikan telah berputar pada kecepatan tertentu, sehingga motor tidak perlu berbeban besar seperti pada saat roda sepeda pertama kali berputar. Simulasi ini dilakukan dengan pengaturan kecepatan motor DC magnet permanen. Dimana pengaturan kecepatan suatu motor DC magnet permanen dilakukan dengan mengatur tegangan masukan motor. Besar tegangan diatur secara variabel sesuai dengan besar duty cycle (D). Karena besar Vout adalah hasil kali dari duty cycle dengan Vin. Sehingga dengan alat pengaturan kecepatan motor dc magnet permanen dengan menggunakan sensor kecepatan rotari ini dapat tercapai efisiensi konsumsi daya baterai pada sistem sepeda listrik. Kata Kunci — Motor DC magnet permanen, pulse width modulation, duty cycle, DC Chopper

Kajian Penggunaan Motor Listrik DC Sebagai Penggerak Speedboat

Transportasi laut dibagi menjaditransportasi penumpang dan transportasi barang.Perahu adalah salah satu jenis transportasi laut.Tujuan dari penelitian ini adalah melakukanpengkajian penggunaan motor listrik DC sebagaipenggerak speedboat dengan membuat simulasisehingga dapat menentukan motor listrik yangsesuai dengan kebutuhan dan karakteristik darispeedboat. Data speedboat yang digunakan dalampenelitian ini adalah: = 0,969 ton, V= 0,946 m3, vs=7 knot, Lwl= 7,89 m, S = 4,59 m2, A = 0,158 m2, Cb=0,567, h= 0,3 m. Dari hasil simulasi, kapasitas motorDC shunt yang diperlukan untuk menggerakkanspeedboat adalah Pm = 2200 W, nm = 1800 rpm, ηm =0,9771,Vt = 24 V, D = 0,1217 m, L = 0,1338 m, If =0,2488 A, Ia = 130,7036 A, Ta = 16,292 Nm. Kapasitasakumulator yang diperlukan selama satu jamadalah 246,8 Ah. Energi baterai dalam satu jamadalah 5923,1 W jam. Sehingga membutuhkanempat buah baterai 24 V 65 Ah terhubung paraleldan tiga buah panel surya 200 Wp.Kata Kunci—Motor DC Shunt, Baterai,Speedboat, Kapasitas Daya, Energi

Penataan Permukiman Kumuh Di Sempadan Sungai Anyar Surakarta Sebagai Kampung Wisata Kerajinan Sangkar Burung.

Slum settlement is a problem faced by almost all big cities in Indonesia is no exception in Surakarta precisely in river settlements Anyar District Banjarsari or more precisely in the settlement Anyar River Sempadan 24 Village Nusukan and RW 15 and RW 17 Village Gilingan. The physical condition of the building which is very tight with low construction quality and low settlement infrastructure makes the impression of slum. The average population of about low-economic, to help its economy some communities also have small businesses such as bird cage and housing soy sauce makers. Of all the problems and potentials that exist raises the problem of how to organize settlements in accordance with applicable regulations and utilize the existing potential as a tourist site bird cage. The output of this arrangement is to determine the ideal design for the people around the average middle-class society down, eliminating the impression of slum settlement, and make the settlement became one of the tourist destinations of bird cage tourism, so that not only the arrangement, but also can maximize existing human resources and improve the economy of the surrounding community

Perencanaan Komplek Pemerintahan Kabupaten Wonogiri(Penekanan Arsitektur Jawa)

Wonogiri is part of Kawedanan Surakarta then break away and become its own district but the fact Wonogiri until now independent. That is because the location of the center of government, which are located less strategic. resulting in Wonogiri own communities and investors are likely to come to the city of Surakarta or for more advanced Sukoharjo and Wonogiri distance from the center is not too far away. Wonogiri districts have an impact evolving architectural development including the development of architecture in historical times. County Government building just a single building standing in the village Nglaroh Selogiri Wonogiri District administration building still traditional Javanese architectural style that is Joglo. Along berkembangya The architectural style of the period - kemasa identity as Wonogiri Regency architecture jawapun Java and getting lost. From some of these reasons, the need for a government complex that is located in a strategic location and can become the identity of Wonogiri then designed complex of Government Wonogiri which uses architecture tadisional Java in order to Enhance progress in the field of economic, social and cultural rights of the whole community Wonogiri, facilitate local leaders in providing services to the community public maximum Wonogiri, Petrified improve the quality of urban development Wonogiri. In the design of Wonogiri District Government Complex, processing the collected data using analytical methods,then dianlisis based permsalahan there, which is then used as an ingredient in the preparation of draft planning Wonogiri District Government Complex. The design concept of government building mass arrangement with the concept of Java Architecture in terms of circulation and arrangement of space to implement the alignment of regional identity Wonogiri as cultured region of Java

Studi Komparasi Mutu Kayu Laminasi dan Kayu Utuh di Solo Raya Hasil Uji Laboratorium Berdasarkan Analisis SNI 7973 - 2013

Abstract Wood is one of Indonesia's natural resources which becomes an element of construction that is easily available and available in relatively large quantities. In the construction section, wood is widely used in every building function from preparation to finishing. As for this research aims to know the value of solid / whole wood quality test results in laboratory with wood quality based on SNI 7973-2013. Types of tests performed include compressive strength testing, tensile strength, shear strength, and flexural strength. Each test object amounted to 3 pieces for 1 variation of wood. wood used there are 5 types, namely wood Sengon, Bangkirai, Kruwing, Kamper, and Nangka from Solo Raya. Based on testing the quality code of each wood tested is Sengon = 7229,88 MPa ; Bangkirai = 13236,48 MPa; Kruwing = 10583,54 MPa ; Kamper = 10411,63 MPa ; dan Nangka = 10378,09 MPa. Sengon wood water content = 16,39 % ; Kamper = 17,59 ; Kruwing = 16,92 ; Nangka = 14,34 ; Bangkirai = 14,64. Value of compressive strength of wood fiber: Sengon = 4,25 MPa; Bangkirai = 14.53 MPa; Kruwing = 8.96 MPa; Kamper = 8.57 MPa; Nangka = 7.60 MPa. Value of compressive strength of perpendicular wood fiber: Sengon = 1.92 MPa; Bangkirai = 9.48 MPa; Kruwing = 4.33 MPa; Kamper = 4.12 MPa; Nangka = 6.22 MPa. Value of tensile strength of wood: Sengon = 62.28 MPa; Bangkirai = 98.17 MPa; Kruwing = 97,66 MPa; Kamper = 57.97 MPa; Nangka = 23.68 MPa. Wood shear strength value: Sengon = 5.06 MPa; Bangkirai = 13.68 MPa; Kruwing = 7.11 MPa; Kamper = 9.80 MPa; Nangka = 10.08 MPa. Value of strong bending wood: Sengon = 30.10 MPa; Bangkirai = 84.92 MPa; Kruwing = 57.08 MPa; Kamper = 56.23 MPa; Nangka = 33.79 MPa. The value of percentage comparison of compressive strength test between the woods tested in the laboratory against the reference strength of SNI 7973: 2013: Sengon = 111.84%; Bangkirai = 121.11%; Kruwing = 95.36%; Kamper = 91,14%; Nangka = 95,00%. The percentage value of the tensile strength test ratio between the woods tested in the laboratory against the reference strength of SNI 7973: 2013: Sengon = 187.91%; Bangkirai = 290,64%; Kruwing = 173.33%; Kamper = 164,67%; Nangka = 291,86%. The percentage value of the comparison of shear strength test between the woods tested in the laboratory against the reference strength of SNI 7973: 2013: Sengon = 991,63%; Bangkirai = 844.61%; Kruwing = 568,85%; Kamper = 784,00%; Nangka = 951,32%. The percentage value of the comparison of bending strength test between the woods tested in the laboratory against the reference strength of SNI 7973: 2013: Sengon = 700.09%; Bangkirai = 615.33%; Kruwing = 538,53%; Kamper = 530,49%; Nangka = 371,39%. Keywords: wood, laminated wood, tensile strength, wood compressive strength, wood shear strength, strong wood bending

Kajian Morfometri Lereng Untuk Konservasi Tanah Di Kecamatan Jatiyoso Kabupaten Karanganyar

This research was conducted in the Sub District Jatiyoso District Karanganyar entitled "Study Morphometry Slopes For Soil Conservation In Sub District Jatiyoso District Karanganyar", in order to determine morphometric slope causing geomorphological processes resulting erosion. In addition, also want to know other forms of soil conservation to reduce the occurrence of erosion processes in the study area. The method used in this study is a survey. The survey includes observation and measurement systematically, complemented by the use of secondary data analysis. The sampling technique using stratifed sampling strata land units, the captured data is data morphology, slope, slope length, slope shape, geomorphological processes, forms of conservation, and crop types. While the method of data analysis used is descriptive method. Based on the results of this study indicate that: The characteristics of geomorphology in the study area varies from unit of land that has a slope of the biggest V3 VI Ack Kb and V3 VI Ack Tg, namely 84%, while unit of land that has a slope smallest V4 V Lc Pm and V4 V Lck Pm, which is 9%. Erosion in the area of research that sheet erosion and gully erosion which contained nearly all the land units. And weathering that occurred in the study area almost all land units are heavy weathering. As for the rocks that make up the study area or Litologinya is Lawu Breccia lava rock, Lava and Tuff. Forms of conservation land in the study area is in the form of mechanical and vegetative methods. Conservation shape mechanically both in the form of construction of bench terraces, patio benches were construction, shoddy construction bench terraces, patio benches imperfect. While conservation methods vegetative form of annual plants and crops. With this research in the area Jatiyoso presented in map form morphoconservation a scale of 1: 70,000 and geomorphology map with a scale of 1: 70,000

Studi Gasifikasi Berbahan Bakar Briket Batubara Terhadap Temperatur Pembakaran

In the recent years, energy has become a crucial issue in the world. The energy crisis caused by growth of population and depletion of world oil reserves along with the emission issue from the fossil fuels gives pressure to each country to immediately produce and use renewable energy. Coal briquette is a renewable energy which is also very potential in Indonesia. By using gasification technology, coal briquettes are burned with limited oxygen to produce a fuel-burning methane gas. The testing of coal briquette gasification aims to find out the effect of diameter size on combustion temperature, boiling temperature of water, effective flame and thermal efficiency of the furnace. The research began by supplying air from the blower with 6.5 m/s speed. Then, diameter sizes variations on coal briquettes were apllied. The diameter size used were 10 mm, 15 mm, and 30 mm. Afterwards, combustion temperature and boiling temperature of water were measured per one minute. The fidings showed that variations on diameter size were highly significant on the combustion temperature, boiling temperature of water, effective flame and thermal efficiency of the furnace produced. In the diameter size of 10 mm, the highest burning temperature was 588.33 0C, the boiling temperature was for 94 minutes, the flame effective was for 94 minutes, and the thermal efficiency of furnace was by 36.88 %. Next, in the diameter size of 15 mm, the highest burning temperature was 513.33 0C, the boiling temperature was for 78 minutes, the flame effective was for 78 minutes, and the thermal efficiency of furnace was by 39,14 %. Lastly, in the diameter size of 30 mm, the highest burning temperature was 705.66 0C, the boiling temperature was for 55 minutes, the flame effective was for 55 minutes, and the thermal efficiency of furnace was by 40.11 %. Keywords : gasification, coal briquette, diameter siz