The selection of structural material types can be based on analyzing the behavioral of the structure by giving a nonlinear dynamic earthquake load of time history. Because in Indonesia doesn't have any data of time history record, it is necessary to match the time history data with the design spectrum response. Gedung E ITERA is modeled on reinforced concrete structures and steel structures with open frame models for the same as built drawing. Then can be evaluated the structural behavior that is like mass participation, plastic design, displacement, rotation, and base shear with time history load that will be levelling (levelling time history). With levelling the time history load , it can be found the first structural part that collapses and the maximum load that can be retained by the structure for one of the mitigation effort. The analysis uses a nonlinear dynamic time history analysis with the most dominant combination is earthquake combination. The results of this study show the differences in structural performance, the location of structural failure, and the maximum load that can be retained by the reinforced concrete structure and steel structure of gedung E Itera.

Permintaan karbon aktif dunia tiap tahunnya mengalami peningkatan. Ditinjau dari komposisinya maka ban bekas mengandung unsur utama karbon, oleh karenanya mempunyai peluang untuk dijadikan karbon aktif. Salah satu parameter kualitas karbon aktif adalah daya adsorpsinya terhadap metilen blue oleh karenanya dalam penelitian akan dikaji daya adsorpsi karbon aktif terhadap metilen blue dengan aktivator kimia NaCl dan pada suhu pengaktifan 600 oC dan 650 oC. Dari hasil penelitian didapatkan hasil bahwa bahwa kemampuan mengadsorpsi metilen blue meningkat dengan kenaikan konsentrasi activator kimia. Kemampuan mengadsorpsi didapatkan pada NaCl sebesar 30 %. Kemampuan adsorpsi juga meningkat dengan kenaikan suhu pengaktifan dengan suhu pengaktifan terbaik pada 650 oC. Dari perbandingan hasil adsorpsi pada berbagai kondisi didapatkan hasil bahwa kemampuan  adsorpsi terbesar karbon aktif adalah 18,9082 mg/g pada kondisi konsentrasi aktivator kimia NaCl 30 % dan suhu pengaktifan 650 oC. Analisis menggunakan SEM-EDAX menunjukkan permukaan pori karbon aktif yang masih belum terbuka secara sempurna dengan kandungan unsur karbon sebesar 95,41%.<br /><br /><br /><br />

No abstract

The high-rise building of steel structures requires strengthening system so that buildings are capable of carrying earthquake loads that may occur. Strengthening of steel structure building can be applied by providing stiffness of the structure in the form of mounting lateral stiffening system using eccentrically braced frame or concetrically braced frame. The purpose of this study is to analyze performance of story drift of the building structure in the form of horizontal drift values due to earthquake load on the building structure using the stiffening lateral x-braced frame and the two story x-braced frame. The research method using load of dynamic earthquake response spectrum analysis in accordance to SNI 03-1726-2012. The building models have 12 floors, located in Lampung city and was planned behave as an Intermediate Moment Resisting Steel Frame (IMRSF). Building model was designed and anlyzed using ETABS Version 9.7. This study shows story drift in type two story x-braced frame is smaller than the x-braced frame.

Geologically Indonesia is located on the confluence of three major tectonic plates, namely Indo-Australia, the Eurasian plate, the Pacific plate as well as a micro-plate, namely micro-Plate Philippines. The above conditions with Indonesia being one of the countries that suffers earthquakes either tectonic or volcanic. A case study of building C and D ITERA is an adjacent building, then from that researchers want to discuss about the displacement that occurred at the confluence of the structure. The purpose of this research is to know the value of displacement i.e. inter-story drifts maximum displacement, and the junction between the building happens in the meeting structure building C and D ITERA when given dynamic load time history and to know the minimum distance between buildings so as not to occur collisions (pounding effect). Dynamic analysis for earthquake resistant building design important completed because a more accurate for evaluation against the response structure due to earthquake loads. Earthquake load (time history) used is The Loma Prieta, The Northridge, The Kobe, The Trinidad, and The Hollister has in matching with response spectrum design area of building C and D ITERA.