Electronic Theses and Dissertation

Abstrak

Dalam bangunan rumah tinggal, sistem struktural dinding bata terkekang (Confined Masonry Wall, CMW) sering digunakan untuk menghadapi beban gempa karena kemampuannya dalam menahan beban searah bidang dinding (inplane). Penelitian ini bertujuan untuk menganalisis respons struktural CMW terhadap Gempa Pidie Jaya 2016 melalui pendekatan eksperimental dan pemodelan macro. Penelitian ini menggunakan perangkat lunak SeismoStruct untuk pemodelan CMW. Parameter pemodelan mencakup karakteristik material dan struktural, seperti modulus elastisitas, kuat luluh, kuat tekan, kuat tarik, serta panjang sendi plastis pada elemen kolom dan balok, juga karakteristik dinding pasangan bata. Pembebanan Non-linear Time History (NLTH) dilakukan dengan variasi Peak Ground Acceleration (PGA) 0,3g, 0,6g, 0,8g, dan 1,0g. Validasi menunjukkan error terendah pada PGA 0,3g (0,14%) dan tertinggi pada PGA 1,0g (3,87%). Hasil analisis menunjukkan perbedaan respons struktur pada variasi PGA dan arah gempa. Output analisis lebih fokus pada arah horizontal dengan deformasi maksimum terjadi pada PGA 1,0g (1,05908 mm) yang tergolong dalam batas Deformasi Elastis. Penelitian ini memberikan wawasan tentang respon struktural CMW terhadap Gempa Pidie Jaya 2016. Melalui pendekatan
eksperimental dan pemodelan, CMW menunjukkan potensi untuk mengatasi gempa dengan tingkat keparahan yang sesuai. Hasil analisis penelitian dapat dijadikan sebagai acuan dalam pengembangan bangunan tahan gempa di masa depan.

Kata kunci : Confined masonry wall, non-linear time history analysis, SeismoStruct v2023, kurva akselerasi-waktu.

Abstract In residential buildings, confined masonry wall (CMW) structural systems are often used to cope with earthquake loads due to their ability to resist in-plane loads. This study aims to analyze the structural response of CMW to the 2016 Pidie Jaya Earthquake through experimental and macro modeling approaches. This research uses SeismoStruct software for CMW modeling. Modeling parameters include material and structural characteristics, such as elastic modulus, yield strength, compressive strength, tensile strength, and plastic joint length of column and beam elements, as well as masonry wall characteristics. Non-linear Time History (NLTH) loading was performed with Peak Ground Acceleration (PGA) variations of 0.3g, 0.6g, 0.8g, and 1.0g. Validation showed the lowest error at PGA 0.3g (0.14%) and the highest at PGA 1.0g (3.87%). The analysis results show differences in structural response across PGA variations and earthquake directions. The analysis output is more focused on the horizontal direction with the maximum deformation occurring at PGA 1.0g (1.05908 mm) which belongs to the Elastic Deformation limit. This research provides insight into the structural response of CMWs to the 2016 Pidie Jaya Earthquake. Through experimental and modeling approaches, CMWs showed the potential to cope with earthquakes of appropriate severity. The results of the research analysis can be used as a reference in the development of earthquake-resistant buildings in the future. Keywords : Confined masonry wall, non-linear time history analysis, SeismoStruct v2023, acceleration-time curve.