Savings in Consumption of Concrete and Steel and in the Related Cost of Various Reinforced Concrete Frame Buildings with Shear Walls Due to Implementation of Base Isolation Strategy

doi:10.32861/sr.48.68.73

Abstract

Highlights

Since 2003 seismic isolation technologies in Armenia were designed and extensively applied in construction of multi-story buildings
Several time histories were used in the analyses and for both cases the buildings were analyzed according to the requirements of the Armenian Seismic Code
Comparison of the obtained results indicates the high effectiveness of the proposed structural concepts of isolation systems

Summary

Introduction

Since 2003 seismic isolation technologies in Armenia were designed and extensively applied in construction of multi-story buildings. The sketches of the basement/parking floors, the ground floors and the typical floors, as well as vertical elevations were presented based on the conventional design and on the design with application of seismic (base) isolation system From these sketches it follows that in conventionally designed buildings columns have cross-section mainly 600×1200 mm or 600×900 mm and all the beams in the buildings have width equal to 600 mm. Location of the shear walls at the basement/parking floor of the base isolated building differs from the location of these structural elements at the ground and typical floors of fixed base buildings and the thickness of the shear walls at the basement/parking floor equals to 200 mm. Given example proves that due to implementation of base isolation a huge quantity of the construction materials could be saved but in the same time the high reliability of the buildings could be achieved

Expenditures of Construction Materials in the 16- And 10-Story Base

Expenditures of Construction Materials in the 15-Story Base Isolated

Expenditures of Construction Materials in the 17-Story Base Isolated

Findings

Conclusions