Seismic Coaction of Shear Wall & Reinforced Cement Concrete Bracing System in High Rise Commercial Buildings Using STAAD Pro

  Shahid Ul Islam,  Rajesh Goel,  Pooja Sharma

In earthquake prone zones the structures are designed to withstand seismic or lateral forces along with the gravity loads. In that respect several earthquake resistant systems namely; shear wall system, bracing system, diagrid etc., have been suggested over a period of time. This study observed the combined performance of shear wall and RCC bracing system, and also the effect of their relative position in high rise commercial building (G+10). The shear walls provide the stiffness to restrain lateral loads and also help in distribution of gravity loads whereas the RCC bracing results in higher stiffness and stability as a potential advantage over other bracings. The study also aimed the comparison of performance of shear wall & RCC bracing system in high rise commercial buildings under seismic loading. The total of 6 structural configurations viz., Moment resisting frame (Model 1), MRF stiffened with RCC bracing system (Model 2), MRF stiffened with shear wall system (Model 3), MRF stiffened with both shear wall and RCC bracing system (Model 4A, Model 4B, & Model 4C) were modelled and then analysed. Analysis has been done in accordance with 1893:2002 using STAAD Pro V8i software. The seismic parameters taken into consideration are base shear and storey displacement. The post analysis results concluded that Model 4C (6. Moment Resisting Frame with shear wall placed at two longitudinal bays at corner 1, and at two transverse bays at corner 4, while as RCC X-bracing system is placed in similar way as shear wall at corner 2 and 3) is more efficient, safe and economical in earthquake as compared to other analysed models.

Keywords- Reinforced Cement Concrete Bracing, Storey Displacement, Base Shear, Seismic Analysis, Story Drift

Unique Identification Number - IJEDR1803005
Page Number(s) - 21-29
Pubished in - Volume 6 | Issue 3 | July 2018
DOI (Digital Object Identifier) -   
Publisher - IJEDR (ISSN - 2321-9939)

  Shahid Ul Islam,  Rajesh Goel,  Pooja Sharma,   "Seismic Coaction of Shear Wall & Reinforced Cement Concrete Bracing System in High Rise Commercial Buildings Using STAAD Pro", International Journal of Engineering Development and Research (IJEDR), ISSN:2321-9939, Volume.6, Issue 3, pp.21-29, July 2018, Available at :http://www.ijedr.org/papers/IJEDR1803005.pdf