Judul: Analisis Gempa Menggunakan Program ETABS Versi 16 pada Pembangunan Gedung Fakultas Ekonomi UHAMKA di Jakarta
Abstrak: Kajian terhadap keamanan struktur diperlukan untuk menghadapi gempa. Penelitian ini bertujuan untuk mengetahui ketahanan struktur atas Gedung Fakultas Ekonomi UHAMKA (Universitas Muhammadiyah Prof. Hamka) terhadap beban gempa berdasarkan Peta Gempa Indonesia 2010 menggunakan metode respon spektrum. Analisis pembebanan mengacu pada SNI 1727-2013 dan SNI 1726-2012. Perhitungan beton mengacu pada SNI 2847-2013. Bahan yang digunakan dalam penelitian ini yaitu shop drawing (denah, dimensi, dan detail penulangan) dan dokumen quality control material bangunan. Struktur bangunan yang dikaji yaitu kolom, balok dan pelat. Hasil analisis ketahanan struktur atas dengan program ETABS menunjukkan bahwa semua komponen kolom kondisi eksisting telah memenuhi kebutuhan jumlah tulangan hasil evaluasi. Nilai kontrol keamanan balok kondisi eksisting lebih besar dari evaluasi sehingga aman terhadap gempa. Tulangan pelat lantai kuat menahan beban.
Keyword: ETABS, ketahanan struktur, respon spektrum, tulangan

Judul: Analisis dan Evaluasi Kekuatan Struktur Atas Gedung Fakultas Ekonomi dan Manajemen IPB Terhadap Faktor Gempa Berdasarkan SNI 1727:2013
Abstrak: Evaluasi struktur sesuai dengan peraturan terbaru perlu dilakukan karena struktur harus memikul beban rancang secara aman sesuai dengan standar yang berlaku. Gedung yang tidak memiliki ketahanan yang kuat terhadap beban gempa dapat bergoyang bahkan runtuh. Penelitian ini bertujuan untuk menganalisis dan mengevaluasi ketahanan gedung terhadap gempa. Komponen utama struktur atas sebuah gedung yaitu balok, kolom, dan pelat lantai, dimodelkan menggunakan program ETABS 2015 sesuai dengan as built drawing. Pemodelan diawali dengan menggambarkan elemen struktur dan dilanjutkan dengan menginput material struktur, yaitu beton dengan mutu K-300 untuk komponen struktur. Hasil analisis dengan menggunakan metode statik ekuivalen menunjukkan bahwa semua komponen struktur kolom dan balok yang terpasang pada kondisi eksisting telah memenuhi kebutuhan jumlah tulangan hasil evaluasi. Jumlah dan diameter tulangan kolom pada kondisi eksisting sama dengan hasil evaluasi. Dapat dikatakan bahwa secara keseluruhan Gedung Dekanat FEM IPB aman terhadap beban gempa.
Keyword: beton, ETABS 2015, gempa, kekuatan struktur, pemodelan

Judul: In vitro propagation and micro bulb induction of shallot
Abstrak: Shallot growers use harvested bulbs as propagules for the next planting. The use of the bulbs may cause degenerative diseases. Therefore, propagation system of shallot must be sought. A series of experiments were conducted in the Department of Agronomy and Horticulture IPB and the University of Queensland from May 2007 to July 2011. The first objective in this experiment was to determine the effect of explant storage duration on in vitro shoot multiplication of shallot. The experimental results showed storage length affected the growth of culture. Twomonth stored bulbs gave the best results on the number of micro shoots, number of leaves and roots and less vitrification. Four-week-old shoots were the best used for micro-propagules in shallot micro bulb induction. The objective of the second experiment was to determine the effect of temperature on the formation of shallot micro bulbs. It was shown that room temperature influenced the number of micro bulb, bulb base diameter, the widest diameter, ratio of the widest diameter and the base diameter of shallot micro bulb (Dt / Dp), root length, shoot length, number of leaves, number of senescing leaf. Temperature of 30/27 °C was better than 20/17 oC in accelerating the process of micro-bulb formation and increased the size of shallot micro bulbs. The objective of the third experiment was to determine the effect of sucrose and paclobutrazol on micro bulb induction. No interaction between sucrose and paclobutrazol was shown. Sucrose affected plant height, number of senescing leaf, root number, root length, the weight of plantlets and micro bulb widest diameter. Sucrose concentration of 90 g L-1 was the best in inducing shallot micro bulbs. Paclobutrazol significantly affected plant height, number of senescing leaf, number and length of roots. Paclobutrazol at level 10 mg L-1 inhibited plant height, leaf number and root length. Paclobutrazol 0.1-10 mg L-1 shortened root length. Paclobutrazol at concentration of 1 and 10 mg L-1 produced an abnormal form of micro bulb. The objective of the fourth experiment was to determine the success of shallot shoot and micro bulb acclimatization. At this stage of acclimatization, micro bulbs could be successfully grown for 3 weeks after acclimatization. Micro bulb was better in acclimatization than rooted plantlet. Plants may be transplanted to the field at 2 weeks after acclimatization. It is concluded that bulb stored for two months was the best for shoot multiplication. Media MS+vit B5 and 90 g L-1 sucrose at 30 oC was the best for bulb induction. Paclobutrazol should not be used for bulb induction. Bulb was better acclimatized than planlet. The media for acclimatization was green leaf compost and husk charcoal.
Keyword: Allium ascalonicum L, micro bulb, explant age, room temperature, paclobutrazol