Spectral Matching of Three-Component Seismic Ground Accelerations for Critical Structures

Abstract This study introduces a new procedure for three-component spectral matching of seismic ground acceleration records. The involves preserving the phase angle and varying Fourier amplitudes to match spectra recorded records with provided target spectrum that represents values motions in three orthogonal directions. Several were matched against two response test method. An accurate convergence was achieved velocity displacement In addition, scales among components’ magnitude maintained, creating realistic motions. Such motion inputs are important qualify critical structures sensitive Our proposed is novel because present practices mostly created based on one-component Keywords: Spectral matching, components, component scales, angle, structures. Abstrak Studi ini mengusulkan prosedur baru terkait penyesuaian spektra catatan percepatan gempa. Prosedur dilakukan dengan mempertahankan sudut phasa tetapi mengubah amplitudo gempa demikian hingga spektrumnya sesuai target. Target spektrum yang diinputkan mewakili tiga komponen Untuk mengujinya, beberapa tiga-komponen disesuaikan terhadap dua spektra. Ketelitian cukup baik terlihat dari kecepatan dan simpangan. Skala ketiga juga dijaga sehingga dihasilkan realistis. Percepatan sejenis diperlukan dalam proses kualifikasi struktur penting sensitif pengaruh gerakan arah. tersebut adalah karena teknik ada sekarang didasarkan pada penyesuain per-komponen. Kata-kata Kunci: Penyesuaian spektra, komponen, skala phasa, penting.