Hasil Pencarian  ::  Simpan CSV :: Kembali

"Dalam menganalisis suatu pondasi tiang pancang yang menerima beban lateral, di samping memperhitungkan daya dukung tiang harus juga memperhatikan aspek geotekniknya, yaitu sifat-sifat dan perilaku tanah yang menerima beban lateral. Penelitian dilakukan untuk mengetahui defleksi dan momen lentur grup tiang di tanah lempung ketika menerima beban horisontal statis pada kepala tiang yang kondisinya terjepit (fixed head). Lokasi penelitian diambil dari dua buah gedung di daerah DKI Jakarta, yaitu Gedung Kondominium Tanjung Duren dan Gedung IKPT. Kedua bangunan tersebut didesain dengan menggunakan tiang pancang, di mana pada Kondominium Tanjung Duren tiang dikategorikan sebagai tiang pendek, dan pada Gedung IKPT tiang dikategorikan tiang panjang.Penelitian defleksi tiang dilakukan dengan menggunakan teori elastis Poulos dan program Florida Pier. Sedangkan momen lentur diteliti dengan menggunakan teori elastis Poulos, program Florida Pier, dan formulasi Ilyas. Beban lateral diberikan sebanyak lima kali dengan beban pertama didasarkan pada hasil perhitungan kapasitas lateral hang masing-masing proyek. Besarnya beban lateral setiap hasil perhitungan dari Kondominium adalah 6 ton. Sedangkan dan gedung IKPT adalah 7 ton per tiang. Teori elastis Poulos tidak memperhitungkan shadowing effect karena nilai defleksi dan momen lentur tiang lead dan rear adalah sama. Sedangkan menurut program Florida Pier, defleksi tiang rear lebih besar daripada tiang lead, dan momen lentur tiang lead lebih besar daripada tiang rear. Shadowing effect juga terlihat dalam formulasi liyas, karena besaran momen lentur tiang lead kedua grup bangunan mengecil dibandingkan dengan tiang tunggal. Semakin banyak jumlah tiang daiam grup, semakin kecil nilai momen lentur yang ditahan setiap tiang. Kurva defleksi-beban lateral dari teori elastis Poulos dan program Florida Pier berbentuk tinier, Begitu juga dengan kurva momen lentur-beban lateral teori elastis Poulos, Florida Pier, dan rumus llyas berbentuk linier. Nilai defleksi tiang pendek teori elastis lebih kecil dari Florida Pier, sedangkan pada tiang panjang teori elatis lebih besar dari Florida Pier. Momen lentur formulasi Ilyas adalah nilai momen terbesar, diikuti Florida Pier, dan teori elastis Poulos."

"Tha main tribune of the Harapan Bangsa Stadium in Banda Aceh is a three - dimensional structure. The deads loads from the roofs, the gutters and the ventilations cause the frames to experience direct stress, not only tensile stress ot but also compresion stress ac..."

"CALM Buoy is one of the offshore structure which is used for loading/unloading liquid cargo to/fromoil tanker from/to onshore facilities. This paper will analyze the relocation process of 35,000 DWT front14 m depth to 22 m depth. The relocation of CALM Bouy needs some configuration changes in itsmooring system due to changes of environtmental factors and future requirements for minimum 6 legsmooring. So that its anchors and other configuration can be reused For this purpose three preliminarymodifications are proposed i.e. 4-4, 6-4, and 8-4, each of the configuration is then calculated for theirchain tension and restoring forces. iterative calculation is carried out using catenary equation with quasistatic approach on horizontal and vertical load directions. The objective of this analysis is to obtain anew suitable configuration, anchor position and anchor type for the mooring leg arrangement."

"The book gives a comprehensive description of the mechanical response of soils (granular and cohesive materials) under cyclic loading. It provides the geotechnical engineer with the theoretical and analytical tools necessary for the evaluation of settlements developng with time under cyclic, einvironmentally idncued loads (such as wave motion, wind actions, water table level variation) and their consequences for the serviceability and durability of structures such as the shallow or deep foundations used in offshore engineering, caisson beakwaters, ballast and airport pavements and also to interpret monitoring data, obtained from both natural and artificial slopes and earth embankments, for the purposes of risk assessment and mitigation."

"Konsumsi energi pada sektor bangunan  mengkonsumsi sekitar 40% dari total konsumsi energi di dunia. Di Indonesia, sektor bangunan bertanggung jawab terhadap 50% konsumsi energi dari seluruh sektor dan lebih dari 70% konsumsi listrik secara keseluruhan Sementara itu potensi penghematan energi pada sektor bangunan di Indonesia bisa mencapai 10-30%. Sektor perkantoran merupakan salah satu penyumbang konsumsi energi terbesar pada sektor bangunan, sementara 50% dari energinya dikonsumsi pada beban penghawaannya. Pada penelitian ini saya mencoba untuk mengoptimalkan dan mereduksi beban penghawaan pada bangunan perkantoran (PIP2B) dengan tujuan koservasi dan efisiensi energi bangunan melalui strategi pada selubung bangunan (dinding, jendela dan ventilasi). Studi kasus kantor Pusat Informasi Pengembangan Pemukiman dan Bangunan (PIP2B) di Makassar. Metode penelitian menggunakan metode keseimbangan termal dengan menganalisis penghawaan yang dibebankan pada alat penghawaan bangunan (Air Conditioner), strategi pengendalian iklim mikro dan mengganti material (dinding, jendela dan ventilasi), sehingga dapat mereduksi beban penghawaan bangunan sesuai target dan standar yang akan dicapai sebesar 10-30% dalam efisiensi energinya. Hasil penelitian menunjukan beban penghawaan bangunan dari panas radiasi pada kondisi temperature terendah dan tertinggi sebesar 126,07 – 234,79 kW dengan nilai persentase 50% dibanding jenis beban penghawaan lainnya. Strategi konservasi dan efisiensi energi dilakukan sehingga dapat mereduksi beban penghawaan sebesar 66-62% pada kondisi terendah dan tertinggi, sehingga penghematan energi mencapai 17-19% dari total beban energi bangunan.Kata kunci : Konservasi, Efisiensi, Energi, Bangunan, Beban Penghawaan, Selubung Bangunan.

---

Energy consumption in the building sector consumes around 40% of total energy consumption in the world. In Indonesia, the building sector is responsible for 50% of energy consumption from all sectors and more than 70% of overall electricity consumption while the potential for energy savings in the building sector in Indonesia can reach 10-30%. The office sector is one of the biggest contributors to energy consumption in the building sector, while 50% is from energy consumption to its burden. In this study, I tried to optimize and reduce the burden of building on office buildings (PIP2B) with the purpose of building conservation and energy efficiency through a strategy on the building envelope. Case study of the Office of Settlement and Building Development Information Center (PIP2B) in Makassar. The research method uses a balance method by analyzing approved air conditioning, a micro-conservation control strategy and replacing materials (walls, windows and ventilation), so as to reduce building awareness according to the target and the standard that will be needed is 10-30% in energy efficiency. The results showed the building load from radiation heat at the lowest and highest temperatures 126.07 - 234.79 kW with a percentage value of 50% compared to other types of load load. The conservation and energy efficiency strategies can reduce the cost of airing by 66-62% at the lowest and highest costs, thus saving energy reaching 17-19% of the total energy load of the building."

"To product electric emergy for simply house the system can supply seven unit lamps that are 3W or 7 unit lamps 7W. In this research we use three unit solar panel each 50Wp, 12V, 1.5 A, solar panel in parallel connection, the output voltage solar panel 12V and the putput of current is 4,5A. The moment sun is bright, the current income to charge controller and the to the battery, charge controller must be to flow to the battery, so we chose the 15A charge controller. If the sun is bright in a day we take the data start at 09.00 until 15.00 WIB, about sic hours, so in the battery has 27Ah, so we need 12V 45Ah battery for three unit solar panel 12V. the meaning only for lighting only, the power is 300W. If loads in the output inverter 1,36A and the input current in inverter is 25A, energy in the battery for six hours is 27Ah, so energy in the battery can for 1,3 hours, for operating in 2,6 hours we must have six solar panels, with charge controller 15A, 500W. For loads seven lamps each 3W so all 21W, current per lamp 0,014A so the output inverter 0,09A, the output voltage inverter 220V, the input voltage inverter 12V, the input current 1,75A, electrical energy ini battery 27Ah, the capability system to supply 15 hours, if we use 7W lamps so the total power 49W we need input current 4A, so can supply for 6,5 hours."

"This book presents broad description of numerical tools successfully applied to structural dynamic analysis. Physically we deal with non-conservative systems. The discrete approach formulated with the use of the classical finite element method results in elemental matrices, which can be directly added to global structure matrices. A more general approach is carried out with the space-time finite element method. In such a case, a trajectory of the moving concentrated parameter in space and time can be simply defined. The structures described by pure hyperbolic differential equations such as strings and structures described by hyperbolic-parabolic differential equations such as beams and plates. More complex structures such as frames, grids, shells, and three-dimensional objects, can be treated with the use of the solutions given in this book."