Investigation of Floor Vibrations of Steel Structure Under Earthquake

In this study, the performance, dynamic

response and slab vibrations of the horizontal and vertical bearing elements

and floors, which constitute the engineering structures under earthquake hazard

today, were investigated. In addition, repair and reinforcement procedures are

also discussed in order to minimize floor vibrations caused by earthquake effects

on existing steel structure members. The results have been discussed for comfort

and fitness level of people by Turkey Building Earthquake Regulation the

proposed non-linear time history analysis done. The findings obtained for the

vibration of the floors are discussed and some design methods have been

proposed to minimize the problems of ground motion vibration. In this study was

examined a two story of steel structure that serving as a restaurant. By

analyzing the designed steel structure on the time domain, it was found that

the floors vibrate more than the vibration limit values recommended by the

regulations. These vibrations were tried to be minimized by increasing the

stiffness of the floors of the steel structure. However, the columns of the steel

structure were supported with diagonal elements and analyzed again. It was

determined that the damping rate of the steel floors increased and their

vibrations decreased through the reinforcement processes. It has also been

observed that the steel structure has reached a controllable damage level. It

has been suggested that the slabs should be connected to the main carrier beams

in a fully rigid manner in order to minimize the vibrations of the steel

floors. However, if the floors are not rigidly mounted on the main carrier

beams, it has been suggested that the columns should be supported with plastic

hinged diagonals at both ends.<o:p></o:p>