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Abstract The seismic response of a building structure is generally evaluated using simplified methods based on elastic response spectra which pass by a linear elastic analysis still takes no account of the true behavior of the structure which may be the both linear and non-linear. To consider the problem of non-linearity, non-linear methods have emerged as static methods (Pushover) and nonlinear temporal dynamics. The purpose of this communication is to use these two methods to evaluate the seismic response of two types of structures: (1) mixed (web + frame) and (2) freestanding gantry, both located in a zone of high seismicity. The dynamic analysis is conducted from two known accelerograms: El Centro 1940 Kobe 1995. The results show that the mixed structure has a better performance vis-à-vis the seismic actions.

1 Introduction In seismic regulations, the study of the response of building structures to the effects of earthquakes is conducted using simplified methods based on response spectra. These methods allow engineers to use either a linear analysis for the calculation of forces and displacements, but conventional linear elastic methods are not generally consistent, so we had to find nonlinear methods to determine the design of a structure, for example the method of nonlinear static analysis “Pushover” and the non-linear temporal dynamic method based on accelerograms. The recent earthquakes such as earthquakes (El Centro 1940 Boumerdes 2003; Kobe 1995) where

S. Bouyakoub (&)
T. Branci (&) Département of Civil Engineering, University Hassiba Benbouali, Chlef, Algeria e-mail: [email protected] T. Branci e-mail: [email protected] © Springer International Publishing Switzerland 2017 T. Boukharouba et al. (eds.), Applied Mechanics, Behavior of Materials, and Engineering Systems, Lecture Notes in Mechanical Engineering, DOI 10.1007/978-3-319-41468-3_28

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S. Bouyakoub and T. Branci

the majority of reinforced concrete structures were damaged or destroyed have indicated the need to assess the actual seismic behavior of existing buildings. In particular, the seismic rehabilitation of reinforced concrete structures in areas with strong sismicités. The main objective of this study is to apply the application of Pushover method on two types of reinforced concrete structures (R + 5): one consists of a mixed bracing system (web + frame) and the other consists of a freestanding system in both directions located in a high seismic zone and dimensioned according to the Algerian seismic regulations RPA 99/2003 [1]. The 2nd structure are used as a reference used for comparison by the structure 1st specifically calculating the capacity curve, the point of seismic performance, check the vulnerability and the state of damage that can occur in the structure of an upcoming earthquake terre. Egalement, for comparison a direct non-linear dynamic analysis was conducted on the specific structures based on two chosen accelerograms (El Centro 1940 and Kobe 1995) to assess the dynamic response of structures themselves conside