Judul: Analisis dan Evaluasi Struktur Atas Gedung Pusat Informasi Kehutanan IPB Terhadap Ketahanan Gempa Berdasarkan Peta Gempa 2010
Abstrak: Indonesia is a very vulnerable country against earthquakes because of it’s located between three active earth slabs like Pacific, Indo-Australian, and Eurasia and also a number of volcanoes. The occurrence of a strong earthquakes will produce an energy that shake everything on the earth's surface, including building structures. The purpose of this research is to analyze and evaluate the resistance of Foresty Information Center Building structure against earthquake based on Indonesian Earthquake Hazard Map 2010 using a static equivalent method. This research was done in March-June 2014 used secondary data like shop drawing of Foresty Information Center Building, then analyzed by ETABS 9.7.2, and Microsoft Excell. The result of the analysis are: there are some componens which still unsafe due to the reinforcement is smaller than analysis result such as longitudinal reinforcement for beam-type B2 (existing 3D 19 < static analysis 5D 19), B3 (existing 6D 19 < static analysis 8D 19), and B3A (existing 4D 19 < static analysis 5D 19), and torsion reinforcement for beam B1, B1A, B2, B2A (existing (without reinforcement) < analisis statik 2D 19), B3 and B3A (existing 2D 19 < static analysis 4D 19), and columns K1-1(existing 12D 19 < static analysis 16D 19), K1-2 (existing 10D 19 < static analysis 13D 19), K3-1 (existing 6D 19 < static analysis 10D 19).
Keyword: ETABS, static equivalent, earthquake, upper structure evaluation

Judul: Analisis dan Evaluasi Struktur Atas Tower C Grand Center Point Apartement Terhadap Beban Gempa Berdasarkan Peta Gempa Indonesia 2010
Abstrak: Indonesia is a very vulnerable country against earthquakes because of it is located between three active earth slabs like Pacific, Indo-Australian, and Eurasia. The number of volcanoes also make Indonesia become vulnerable too. The occurrence of strong earthquakes produce an energy that can shake everything on the Earth's surface, include tower building. The purpose of this research is to analyze and evaluate the resistance of Tower C Grand Center Point Apartment structure against earthquake load based on Indonesian Earthquake Hazard Map 2010 using static equivalent, respon spectrum and time history method. This research was done in March-June 2013 used secondary data like Shop drawing of Grand Center Point Apartment, then analyzed by ETABS 9.7.2, and Microsoft Excell. Steps in doing this research is collecting data, modeling, structure loading, structure analysis, and structure evaluation. The result of the analysis: the number of the structure reinforcement without earthquake load is larger than the number of the analyze reinforcement, so in this situation the structure is safe. On static earthquake condition with static equivalent analysis, some component still have so many unsafe structure because the existing reinforcement is smaller than the analyze reinforcement. On the dynamic condition, especially with respon spectrum analysis, the structure more weak to against earthquake load rather than on the static condition. This is caused by the structure component with its existing reinforcement which smaller than the analyze reinforcement is increase
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Judul: Fraksinasi Minyak Sereh Wangi Menggunakan Distilasi Vakum Skala Pilot
Abstrak: Citronellal and rhodinol are the main compound of citronella oil that has higher price than crude citronella oil. Citronellal and rhodinol can separate using fractionation process. Therefore, it is necessary to know the process conditions of citronella oil fractionation using 50 L vacuum distillation unit. Fractionation process carried out at 20 mmHg by using 25 L of citronella oil. Crude citronella oil is separated into initial fraction, citronellal fraction, intermediate fraction, and rhodinol fraction. The fractions were analyzed using Gas Chromatography-Mass Spectrometry (GC-MS) to determine the composition. The result of process 1 is then used to regenerate the process condition of process 2 by lowering the temperature setting used in process 2. The citronellal fraction of process 1 and process 2 has purity level of 51.22% and 50.40%, respectively. Similarly, the rhodinol fraction of process 1 and process 2 has purity level of 62.33% and 59.40%, respectively. Meanwhile, there was a decreased concentration of citronellal in the initial fraction of process 1 and process 2. Whereas the intermediate fraction in process 1 and process 2 were contained quite high concentrations of citronellal and rhodinol compounds. Low purity of main fraction indicates that the reflux ratio used in the process was inefficient., Citronellal dan rhodinol merupakan senyawa utama dalam minyak sereh wangi yang memiliki harga lebih tinggi dibanding minyak sereh wangi. Citronellal dan rhodinol dapat diperoleh menggunakan proses fraksinasi. Oleh karena itu perlu untuk mengetahui kondisi proses yang optimal dalam proses fraksinasi minyak sereh wangi dengan menggunakan alat distilasi vakum dengan kapasitas 50 L. Proses fraksinasi dilakukan pada tekanan 20 mmHg dengan menggunakan minyak sereh wangi sebanyak 25 L. Minyak sereh wangi mentah dipisahkan menjadi fraksi awal, fraksi citronellal, fraksi antara, dan fraksi rhodinol. Hasil fraksinasi dianalisis menggunakan Gas Chromatography-Mass Spectrometry (GC-MS) untuk mengetahui komponen yang terkandung. Hasil dari proses 1 digunakan untuk memperbaiki kondisi proses pada proses 2 dengan menurunkan pengaturan suhu pada proses 2. Fraksi citronellal pada proses 1 dan proses 2 memiliki kemurnian sebesar 51.22% dan 50.40%. Begitu pula fraksi rhodinol pada proses 1 dan proses 2 memiliki kemurnian sebesar 62.33% dan 59.40%. Sementara terdapat penurunan konsentrasi senyawa citronellal dalam fraksi awal pada prosess 2. Sedangkan fraksi antara pada proses 1 dan proses 2 masih mengandung senyawa citronellal dan rhodinol dengan konsentrasi yang cukup besar. Rendahnya kemurnian fraksi utama ini menunjukkan bahwa rasio refluks yang digunakan tidak efisien.
Keyword: citronella oil, citronellal, rhodinol, vacuum distillation fractionation