Studi Perbandingan Analisis Respon Spektra dan Time History untuk Desain Gedung

Bayyinah, Dilla Ayu Laila Nurul (2017) Studi Perbandingan Analisis Respon Spektra dan Time History untuk Desain Gedung. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Untuk memperhitungkan pengaruh gaya lateral akibat gempa terhadap struktur bangunan biasanya dihitung dengan 2 (dua) pendekatan, yaitu analisis statik (statik ekivalen), analisis dinamik (respon spektra dan time history). Pengaruh gempa rencana pada struktur bertingkat banyak dengan ketinggian lebih dari 10 tingkat atau 40 m harus ditinjau sebagai pengaruh beban dinamik dan analisisnya harus didasarkan pada analisis dinamis (SNI 1726 2012). Saat ini banyak studi yang membahas tentang analisis linier spektra. Pada tugas akhir ini, akan dibandingkan analisis linier respon spektra dan linier time history. Gedung didesain dengan analisis respon spektra kemudian desain tersebut dievaluasi dengan analisis linier time history. Data gempa untuk time history menggunakan 3 (tiga) rekaman gempa yaitu gempa Kobe (Jepang, 1995), Imperial Valley (California, 1979) dan Tabas (Iran, 1978). Dari ketiga data gempa tersebut diambil yang nilai terbesar. Hasil studi menunjukkan adanya perbedaan antara kedua analisis tersebut. Nilai base shear respon spektra lebih besar dibandingkan analisis linier time history. Presentase penurunan nilai base shear dari 3 (tiga) gempa dengan analisis linier time history terhadap respon spektra yaitu sebesar 4,69 % Kobe - x ; 11,32% Kobe -y; 62,4 % Imperial Valley - x ; 83,046 % Imperial Valley - y; 8,1 % Tabas -x dan 12,1 % Tabas - y. Hasil simpangan dengan respon spektra aman terhadap simpangan ijin, kemudian dievaluasi dengan analisis linier time history masih dalam kategori aman tapi pada simpangan arah - x, gempa imperial valley melebihi simpangan respon spektra dan arah y di beberapa lantai melebihi respon spektra. Data simpangan menunjukkan bahwa gempa imperial valley menyebabkan simpangan terbesar dari ketiga gempa yang ditinjau. Hasil desain dituangkan dalam gambar. ============================================================================================ To account for the effect of lateral forces caused by the earthquake to building structures is usually calculated by 2 (two) approaches, such as static analysis (static equivalent) and dynamic analysis (spectral response and time history). The influence of the earthquake plan on multistory structures with a height of more than 10 or 40 m levels should be reviewed as the influence of dynamic loads and analysis should be based on dynamic analysis (SNI 1726 2012). Nowadays, many studies that discuss the linear analysis of spectra. In this final project, will be discussed about comparison between the linear response spectra analysis and linear time history. The building designed by response spectra analysis are evaluated by linear time history analysis. Seismic data for time history using three (3) copies of earthquake that the Kobe earthquake (Japan, 1995), Imperial Valley (California, 1979) and Tabas (Iran, 1978). By the three seismic data, was taken the greatest value. The study shows the differences between the analysis. The value based on shear is greater than the spectral response of linear time history analysis. The percentage reduction in base shear value of three (3) an earthquake with a linear time history analysis of the spectral response that is equal to 4,69 % Kobe - x ; 11,32% Kobe -y; 62,4 % Imperial Valley - x ; 83,046 % Imperial Valley - y; 8,1 % Tabas -x dan 12,1 % Tabas - y. The results deviated with the response spectra permits secure against

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: gempa dinamik; desain gedung; respon spektra; linier time history; the earthquake dynamics; the design of the building; the response spectra; linear time history
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA645 Structural analysis (Engineering)
T Technology > TA Engineering (General). Civil engineering (General) > TA681 Concrete construction
Divisions: Faculty of Civil Engineering and Planning > Civil Engineering > (S1) Undergraduate Theses
Depositing User: DILLA AYU LAILA NURUL BAYYINAH
Date Deposited: 23 Mar 2017 01:37
Last Modified: 23 Mar 2017 01:37
URI: http://repository.its.ac.id/id/eprint/2433

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