Analisis Kinerja Struktur pada Bangunan Bertingkat dengan Metode Analisis Respon Spektrum Berdasarkan SNI 1726:2019

Abstract

Terbitnya SNI 1726:2019 menandakan bahwa perencanaan telah melewati masa transisi tertentu sehingga peraturan yang ada sebelumnya akan tidak berlaku lagi. Perencanaan yang telah dibuat untuk gedung Collaborative Research Center (CRC) masih menggunakan peraturan atau standar yang berlaku sebelumnya. Penelitian ini bertujuan menganalisis kinerja struktur pada gedung CRC dengan metode analisis respon spektrum berdasarkan pada SNI 1726:2019. Metode penelitian dilakukan dengan beberapa tahap, dimulai dari pengumpulan data, pemodelan struktur, analisis pembebanan, analisis kesesuaian struktur, dan cek kinerja struktur. Pemodelan struktur gedung CRC dilakukan berdasarkan dokumen as built drawing. Perhitungan pembebanan terhadap struktur gedung meliputi beban gravitasi dan lateral. Besarnya partisipasi massa yang didapatkan sudah lebih dari 90%, sedangkan nilai periode struktur dan gaya geser dasar dinamik telah dilakukan kontrol sehingga memenuhi persyaratan sesuai SNI 1726:2019. Berdasarkan nilai rasio simpangan, level kinerja gedung CRC adalah Immediate Occupancy (IO). Hasil pengecekan terhadap pengaruh P-Delta didapatkan nilai θ tidak melebihi dari nilai θ maksimum sehingga gedung CRC dapat dikatakan stabil.

The issuance of SNI 1726:2019 indicates that the planning has passed a certain transition period so that the existing regulations will no longer apply. Planning that has been made for Collaborative Research Center (CRC) buildings still uses regulations or standards that apply before. This study analyses the performance of structures in CRC buildings with spectrum response analysis methods based on SNI 1726:2019. The research method is carried out in several stages, starting from data collection, structure modelling, loading analysis, structure conformity analysis, and structure performance check. Modelling of CRC building structures is done based on as built drawing documents. Calculation of loading on building structures includes gravitational and lateral loads. The amount of mass participation obtained has been more than 90%, while the value of the period of the structure and dynamic base shear force has been controlled to meet the requirements according to SNI 1726:2019. Based on the drift ratio value, the CRC building performance level is Immediate Occupancy (IO). The result of checking the influence of P-Delta obtained θ value does not exceed the maximum θ value so that the CRC buildings can be said to be stable.