TY  - JOUR
T1  - DYNAMIC ANALYSIS USING THE SUPERPOSITION OF MODES AND HORIZONTAL EARTHQUAKE SPECTRA: COMPARISON WITH STATIC ANALYSIS  IN THE EXAMPLE OF A 20-STOREY BUILDING
AU  - Al-janabı, Bashar Hammoodi Khalaf
PY  - 2025
DA  - June
Y2  - 2025
DO  - 10.53600/ajesa.1347458
JF  - AURUM Journal of Engineering Systems and Architecture
JO  - A-JESA
PB  - Altınbaş Üniversitesi
WT  - DergiPark
SN  - 2564-6397
SP  - 37
EP  - 62
VL  - 9
IS  - 1
LA  - en
AB  - This paper applied the three earthquake analysis methods for analyzing the response of 20-storey building, the paper provides a comparison study between dynamic and static analysis methods to evaluate the level of accuracy when using the static method, where system and ground motion parameters addressed in the Iraqi code for the city of Baghdad are used in this study. The study compared the results of Equivalent Lateral Force Analysis (ELFA) and Response Spectrum Analysis (RSA) with Time History Analysis (THA). Therefore, the aim of the study is to compare the results of ELFA with THA applied by using superposition of modes and artificially earthquake accelerations scaled to the site design spectrum in order to compare the results of ELFA for the example of 20-storey building, the study concluded that static analysis is not directly sufficient for 20-storey building, because it has been showing inaccurate response results, where it shows a lower design base shear if compared with elastic base shear obtained from dynamic analysis further to inaccurate displacements results. Finally, dynamic analysis leads to more seismic resistant design than static analysis if used with a desired ductility and desired strength modifications factors.
KW  - Earthquake
KW  - Static
KW  - Dynamic
KW  - Response
KW  - Baghdad
KW  - Iraq
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UR  - https://doi.org/10.53600/ajesa.1347458
L1  - https://dergipark.org.tr/tr/download/article-file/3351441
ER  -