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INFLUENCE OF THE ANGLE OF INCIDENCE OF THE EARTHQUAKE ON THE SEISMIC RESPONSE OF A REGULAR BUILDING’ SHAPE.
Oral Presentation , Page 128-136 (9)
Full Text (976.84 K)
Volume Title: 3rd International Conference on Civil Engineering: Development & Sustainability
Authors
1Civil engineering department, faculty of sciences and applied sciences, University of Bouira, Algeria.
2Civil engineering department, University of Bouira, Algeria
Abstract
Reinforced concrete structures are generally stressed by a three-dimensional seismic movement (two horizontal components and one vertical component). In most cases and respecting the seismic regulations in force, the dynamic analysis of these structures is carried out by considering only the two orthogonal components of the horizontal seismic movement (0° and 90°).
In this work, the influence of earthquake direction on the seismic response of regular buildings will be examined. A building of six stories of a regular rectangular shape braced by reinforced concrete shear walls located in average seismicity zone is invested for the analysis of critical incidence.
The response spectrum acceleration is calculated using the Algerian seismic code RPA 2003 following directions with an angle varying from 0 to 90° with a step of 10° from the principal horizontal x axis. The spectral modal analysis of the building is made using the ETABS software.
The various response parameters studied are the reaction at the base of the structure, its maximum horizontal displacement, the stresses (axial force, shear force, bending moment) in the horizontal and vertical elements and the normal stresses in columns and walls.
The results obtained demonstrate that the maximum seismic response of the examined structure as a function of the angle of incidence coincides with the main orthogonal axes (0° and 90°). It is observed in this study that the behavior of the examined structure varies according to the angle of incidence of the earthquake applied.
In this work, the influence of earthquake direction on the seismic response of regular buildings will be examined. A building of six stories of a regular rectangular shape braced by reinforced concrete shear walls located in average seismicity zone is invested for the analysis of critical incidence.
The response spectrum acceleration is calculated using the Algerian seismic code RPA 2003 following directions with an angle varying from 0 to 90° with a step of 10° from the principal horizontal x axis. The spectral modal analysis of the building is made using the ETABS software.
The various response parameters studied are the reaction at the base of the structure, its maximum horizontal displacement, the stresses (axial force, shear force, bending moment) in the horizontal and vertical elements and the normal stresses in columns and walls.
The results obtained demonstrate that the maximum seismic response of the examined structure as a function of the angle of incidence coincides with the main orthogonal axes (0° and 90°). It is observed in this study that the behavior of the examined structure varies according to the angle of incidence of the earthquake applied.
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