Judul: Seismic Performance Evaluation of the Sabilulungan 99 Tower Structure in Bandung Regency using the Nonlinear Static Pushover Analysis Method
Abstrak: Salah satu wilayah dengan kerawanan gempa bumi yang tinggi adalah Pulau Jawa. Menara Sabilulungan 99 yang terletak di Kabupaten Bandung ini merupakan menara dengan struktur beton bertulang yang memiliki sistem rangka pemikul momen. Periode struktur yang dimiliki adalah sebesar 2,6 detik. Rasio partisipasi massa yang diperoleh mencapai nilai di atas 90% baik arah x dan arah y pada ragam getar ke 9. Gaya geser dasar yang diperoleh ketika titik performa tercapai dalam analisis pasca-elastik adalah sebesar 10402,90 kN untuk arah x dan 10178,88 kN untuk arah y. Perpindahan lateral atap pada arah x dan arah y masing-masing adalah sebesar 568,53 mm dan 602,51 mm ketika titik performa struktur tercapai. Berdasarkan parameter deformasi struktur pada acuan ATC 40 dan FEMA 356, tingkat kinerja struktur merupaka Life Safety (LS). Daktilitas yang dimiliki struktur pada arah x dan y masing-masing adalah sebesar 1,7 dan 2,4 sehingga struktur tergolong ke dalam daktilitas rendah pada arah x dan daktilitas sedang pada arah y., One of the regions with high earthquake vulnerability is Java Island. The Sabilulungan 99 Tower, located in Bandung Regency, is a tower with a reinforced concrete structure that features a moment-resisting frame system. The structure
Keyword: beban gempa, analisis pushover, kinerja seismik, earthquake load, pushover analysis, earthquake load, seismic performance, seismic performance, ductility, sabilulungan 99 tower

Judul: Performance Evaluation of Multi-Storey Building Structures using Pushover Analysis with Spectrum Capacity Method and Displacement Coefficient
Abstrak: Frekuensi kejadian gempa bumi yang tinggi di Indonesia mendorong kebutuhan untuk merencanakan bangunan sesuai dengan standar tahan gempa. Oleh karena itu, penelitian ini bertujuan untuk mengevaluasi kinerja struktur bangunan bertingkat dan menentukan tingkat kinerjanya. Metode yang digunakan dalam penelitian ini adalah analisis pushover. Struktur bangunan dimodelkan menggunakan perangkat lunak ETABS, dengan pembebanan yang sesuai dengan standar SNI 1726:2019, 1727:2020, dan PPPURG 1987. Hasil analisis menunjukkan bahwa struktur gedung dapat dikatakan stabil dalam pengecekan pengaruh P-Delta, namun belum memenuhi batas izin simpangan inelastik. Titik kinerja berdasarkan FEMA 440 didapatkan nilai sebesar 303,618 mm untuk arah X dan 285,934 mm untuk arah Y. Sedangkan berdasarkan FEMA 356 target perpindahan didapatkan nilai sebesar 313,997 mm untuk arah X dan 295,493 mm untuk arah Y. Rasio daktalitas arah X sebesar 1,446 dan untuk arah Y sebesar 1,42. Selain itu, didapatkan nilai redaman efektif sebesar 5,88% untuk arah X dan 5,81% untuk arah Y., The high frequency of earthquake events in Indonesia drives the need to plan buildings according to earthquake-resistant standards. Therefore, this study aims to evaluate the performance of multi-storey building structures and determine their performance level. The method used in this research is pushover analysis. The building structure was modeled using an ETABS software, with loading in accordance with the SNI 1726:2019, 1727:2020, and PPPURG 1987 standards. The analysis results show that the building structure can be said to be stable in checking the influence of P-Delta, but has not yet met the inelastic deviation permit limit. The performance point based on FEMA 440 obtained a value of 303.618 mm for the X direction and 285.934 mm for the Y direction. Meanwhile, based on FEMA 356, the displacement target obtained a value of 313.997 mm for the X direction and 295.493 mm for the Y direction. The ductility ratio in the X direction is 1.446 and for the Y direction is 1.42. In addition, an effective damping value of 5.88% was obtained for the X direction and 5.81% for the Y direction.
Keyword: ATC-40, earthquake, pushover analysis, structure performance

Judul: Penangkaran Kupu Pachliopta aristolochia (Papilionidae: Lepidoptera) di Screen House dan Laboratorium
Abstrak: This study aims to domesticate of Pachliopta aristolochia in screen house and laboratory. Sixty-seven P. aristolochiae were released into the screen house. From six pairs mated butterflies produced two hundred and sixty eggs layed. Forty eggs were studied in the research. Twenty larvae were maintained in screen house and the other twenty larvae were maintained in the laboratory. Twenty larvae that developed into pupa in the screen house, were moved into the laboratory. The other twenty larvae were maintained in the laboratory. The twenty larvae in the screen house turned into a pupa and only nineteen butterflies were in normal condition, with sex ratio 8/11. Larvae in the laboratory developed into twenty normal pupas and produced fifteen normal butterflies with a sex ratio 11/4. All butterflies in the screen house can continue to develop and reproduce as long as Aristolochia tagala as larvae food and nectar of flower as butterfly food are available. The life cyle of P. aristolochiae in screen house from egg until pupa was 35,9±6,76 days.
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