Reinforced concrete tall buildings' behavior with an irregular plan for examining the effect of end shear walls

Nowadays, many factors affect the design process of tall buildings. Therefore, the architecturalconcept sometimes causes irregular plans, complex forms, and structural design challenges. On the otherhand, lateral loads have more critical effects on lateral load resistance systems. In all stories, the end shearwall was used for the lateral load system, connected to the end of two end shear walls. The configurationof the core walls affected the total structural system's torsion strength and hardness. The shear walls havebeen used near the fire escape stairs at the end of the shear wall flanges to improve the system's hardnessand stability. This study modeled two reinforced concrete ۳۰-story buildings with and without end shearwalls, considering the plan's irregularity. The maximum story drift and ratio (ΔMax/ΔAvg) declined by۵۴% and ۲۵% in end shear walls, respectively. Based on the findings, the end shear walls significantlyimproved the reinforced concrete tall buildings.

Keywords:

End shear wall , tall building , reinforced concrete structures , irregularity in plan