building while conducting push over analysis?

The formation of hinges depends on demand to capacity ratio (DCR). The members in which the seismic demand exceeds its capacity, hinge formation takes place. 
The second issue is that you have considered a high-rise building in which higher modes may have significant influence to overall behaviour of the structure. Applicability of pushover analysis based on fundamental mode of vibration in such buildings is questionable?
At last, it is preferable to check the mass participation in fundamental mode of vibration. If mass participation in the fundamental mode is less than 75% than perform a nonlinear dynamic analysis to get realistic behaviour

The formation of hinges depends on demand to capacity ratio (DCR). The members in which the seismic demand exceeds its capacity, hinge formation takes place. 
The second issue is that you have considered a high-rise building in which higher modes may have significant influence to overall behaviour of the structure. Applicability of pushover analysis based on fundamental mode of vibration in such buildings is questionable?
At last, it is preferable to check the mass participation in fundamental mode of vibration. If mass participation in the fundamental mode is less than 75% than perform a nonlinear dynamic analysis to get realistic behaviour.