Judul: Analisis Struktur Jalan Layang Tol Bogor Outer Ring Road (BORR) Seksi IIA (P6-P12) terhadap Gempa
Abstrak: Flyovers is one relevant solution to overcome traffic jam is often the case in big cities. flyovers BORR section IIA (Kedunghalang-Kedungbadak) P6-P12 span is the object of research the analysis of structures against earthquake loads are analyzed by modeling the CSI Bridge v.15 with secondary data obtained from the prime contractor and refer to such regulations RSNI T-02-2005, RSNI T-12-2004, SNI 03-1725-1989, SNI 2833-2008, RSNI 03-1726-2010 dan Peta Zonasi Gempa Indonesia 2010. This research was conducted in March-May 2014 in the Department of Civil and Environmental Engineering, Bogor Agricultural University and aims to analyze the bridge structure against earthquakes. Based on the result of this research, is obtained that bridge structure are safed under earthquake loads that is ϕMn = 23003.18 kNm ≥ Mu = 19768.5094 kNm, ϕVn = 4418.796 kN ≥ Vu = 4418.796 kN and ϕTc = 60851.21 kNm ≥ 𝑇��������𝑢�������� = 46688. 56 kNm. The value of flexural, shear and torsional reinforcement beam and pier reinforcement in existing is safed under earthquake loads based on Peta Gempa Indonesia 2010.
Keyword: Bridge, Earthquakes, CSI Bridge v.15, Box Girder

Judul: Distribusi Tegangan-Regangan pada Tahap Konstruksi Struktur Atas Jalan Layang Tol BORR (Bogor Outer Ring Road) Seksi IIA Span P6 – P12
Abstrak: Land transportation network system consists of road and bridge, both of them has important role in connecting each region, in addition to support the transportation activity inside. Bogor city government had planned construction of Elevated Toll Road, Bogor Outer Ring Road (BORR) Section IIA on Kedunghalang – Kedungbadak roads to reduce the congestion occurs in that region currenly. The constructin concept is segmental bridge and precast segmental box girder as main component, construction method which used is “span by span erection with launching gantry”. The purpose of this research is to analyze the stress-strain and displacement that occurs on top of structre when the construction stage takes place. The methods of this research are collecting data, modelling in CSI Bridge V15, and analysis of stress-strain distribution. During the construction process, the entire structure of the box girder and column are secure against stress and compressive strain, but with the addititonal condition which is most of box girder structure and all of column structure is unsafe to stress and tensile strain. Compressive stress, tensile stress, compressive strain and tensile strain that occurs in span 2 of box girder (76 614 mm distance) after the construction steps are finished is represents respectively 2122.39 kN/m2, 3412.96 kN/m2, 7.01E-05, and 1.13E-04. In addition, the compressive stress, tensile stress, compressive strain and tensile strain that occurs in column 2 side A after constructions work is finished, the results gained are presented continously as 3632.5 kN/m2, 5708 kN/m2, 1.2E-04, and 1.89E-04, while on the B side are 4570.5 kN/m2, 7176.2 kN/m2, 1.51E-04 and 2.37E-04. The maximum deflection occurs at step 11 and 12 is in the amount of 16.7 mm, these results indicate that the structure of bridges / fly-over is stiff and safe.Obtained maximum deflection is 16.7 mm, the results show that the structure of the bridge/ fly-over is safe.
Keyword: CSI Bridge V15, span by span with launching gantry, box girder, stress-strain

Judul: Pengembangan Etil Ester Minyak Sacha Inchi dan Karakteristiknya sebagai Bahan Baku Kosmetik
Abstrak: PT Eteris Prima Wiyasa mengembangkan produk-produk kecantikan yang berasal dari minyak sacha inchi. Namun, minyak sacha inchi sebagai bahan baku kosmetik memiliki viskositas yang cukup tinggi sehingga memiliki tingkat penyerapan dalam kulit yang rendah. Penelitian ini bertujuan untuk mengembangkan etil ester minyak sacha inchi, uji karakteristik, dan menganalisis kandungan etil ester minyak sacha inchi untuk digunakan sebagai solusi bahan aktif pada produk perawatan kulit dalam sediaan kosmetik pengganti minyak sacha inchi. Metode yang digunakan yaitu desain keteknikan yang meliputi fase eksplorasi, fase pendefinisian masalah, fase ideasi, fase pengembangan prototipe serta fase validasi. Hasil penelitian didapatkan etil ester minyak sacha inchi memiliki viskositas yang lebih rendah dari minyak sacha inchi sehingga daya sebar dan daya serapnya lebih tinggi. Metode pengembangan etil ester minyak sacha inchi yang terbaik menggunakan Microbubble nitrogen dengan aerator batu akuarium selama 1,5 jam. Etil ester cukup stabil selama masa penyimpanan didua suhu yang berbeda dibandingkan minyak sacha inchi. Dalam etil ester minyak sacha inchi terbukti mengandung omega 3, omega 6, dan omega 9., PT Eteris Prima Wiyasa develops beauty products derived from sacha inchi oil. However, sacha inchi oil as a cosmetic raw material has a fairly high viscosity so that it has a low absorption rate in the skin. This study aims to develop sacha inchi oil ethyl esters, test characteristics, and analyze the content of sacha inchi oil ethyl esters to be used as a solution for active ingredients in skin care products in cosmetic preparations to replace sacha inchi oil. The method used is engineering design which includes the exploration phase, problem definition phase, ideation phase, prototype development phase and validation phase. The results showed that sacha inchi oil ethyl ester has a lower viscosity than sacha inchi oil so that its spreadability and absorbency are higher. The best development method of sacha inchi oil ethyl ester was using Microbubble nitrogen with aquarium stone aerator for 1.5 hours. The ethyl ester was quite stable during storage at two different temperatures compared to sacha inchi oil. The ethyl ester of sacha inchi oil was shown to contain omega 3, omega 6, and omega 9.
Keyword: Sacha Inchi, Sacha Inchi, etil ester, kosmetik, minyak sacha inchi, microbubble, ethyl esther, cosmetics, sacha inchi oil, microbubble