Behavioral Assessment Study of High-Rise RCC Buildings with Hybrid Outrigger System, External flexural strengthening of rc beams using different anchoring techniques.

Document Type

News Article


Study on Hybrid outrigger system:

Though the virtual outriggers are not as effective as conventional outriggers in reducing the displacement and drift values, it can overcome the cons of conventional outrigger system. Therefore, analyzing a building with hybrid outrigger system, i.e., both conventional and virtual outriggers, may solve the issues. Thus, in this study, behavior of a high rise RCC building with a hybrid outrigger system is studied for various parameters.

The building is analyzed in a finite element software, ETABS, using non-linear time history analysis. Various parameters which influence the performance of hybrid outrigger system on the structure is identified and its behavioral assessment is carried out. The parameters include stiffness of core and belt wall, stiffness of outrigger beam, diaphragm stiffness, axial stiffness of column, spacing between the columns, location of the hybrid outrigger system and grade of concrete. These parameters are varied, and their influence on the structure is evaluated by analyzing the lateral displacement, inter storey drift, time period and base shear of the building. The study will be carried out for buildings with varying heights, different loadings (uniform, triangular and parabolic), different configurations and building with inclined is columns.

Base Isolation system:

Earthquakes are one of the most catastrophic natural events, often resulting in the loss of lives and structures. Humans have been trying to reduce the harmful effects of earthquakes on structures such as buildings, bridges and tanks. The main challenge faced in reducing the harmful effect of an earthquake is to arrive at a suitable method to dissipate or offset the vast amount of energy imparted to the structure during a seismic event. The researchers have focused on developing mechanical devices that can significantly reduce the transfer of seismic energy to the structure, which led to the invention of base isolation systems. A multistory structure with infill and base isolation are under study for it behavioral response to seismic excitation.

Study on Wall-beam interaction:

Masonry wall supported on reinforced concrete beam is a common feature in residential, commercial and factory buildings. Yet the attention of the designers on the wall-beam composite system is limited. Lack of rational analysis and well- defined design procedures, and limited test data are the major factor for this. As a result, the design is uneconomical. If we consider this composite action the bending moment in the critical section of supporting beam can be reduced.

  1. https://link.springer.com/chapter/10.1007/978-981-16-2826-9_5
  2. https://www.sciencedirect.com/science/article/pii/S2214785322012500?via%3Dihub
  3. https://link.springer.com/chapter/10.1007/978-981-16-2826-9_35

Publication Date

Spring 10-1-2022