In this approach, a multistory frame is reduced to an equivalent shear-building model by performing a pushover analysis.
In this study, an attempt has been done for investigating the seismic behavior of a typical existing building in Cairo by performing static pushover analysis before and after retrofitting the columns by either, reinforced concrete, steel sections or carbon fiber reinforced polymer (CFRP) composite jackets.
Firstly, applicability of the equal-energy assumption to upper-deck steel arch bridges is examined numerically by performing free vibration analysis, pushover analysis, and elastic and inelastic dynamic response analyses.
Using FEMA356 procedure, the accounted-for target displacement is used for performing the pushover analysis in the mentioned performance levels.
In the proposed approach, a multistory frame model is reduced to an equivalent shear-building one by performing a static pushover analysis.
To perform the pushover analysis, the required bending moment capacities at the locations of potential plastic hinges (ends of beams, ground column and wall bases) are found from Eqs. (6b), (10) and (11) to be equal to M by = 472.5, M cy = 708.75 (half at the edge columns) and M wy = 44800 kNm.
Thus, the MMC method requires performing two separate pushover analysis in which one of the two above loading combination is used.
The building evaluation is performed through a pushover analysis, and performance objective are obtained through initial stiffness of the pushover curve.
In this respect, the SAP2000 20022) program is employed to perform the nonlinear pushover analysis.
Using a detailed model in OpenSees an assessment of the seismic demand and capacity of this MSB is provided by performing nonlinear static pushover and incremental dynamic analyses (IDA) in two and three dimensions.
