COMPARATIVE STUDY ON DIFFERENT TUBULAR STRUCTURE FOR LATERAL LOADS AND ANALYSIS OF MASS AND STIFFNESS IRREGULARITY FOR FINEST TUBULAR STRUCTURE
Mr. Narasimha Murthy TS1, Ms. Kumuda V2, Mr. Ramesh Kumar BP 3, Mr. Pravin Ghimire4,
1Student, Master of Technology in Structural Engineering, Department of civil Engineering, East West Institute of Technology, Anjana Nagar Bangalore.
2Assistant Professor, Department of civil Structural engineering, East West Institute of Technology, Anjana Nagar Bangalore.
3Senior Engineer Quality Control, Bangalore
4Assistant Manager-QA/QC, Bangalore
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Abstract The analytical study of seismic and wind load behavior of different RCC tube structure constructions, and in order to accomplish this, a typical G+25 storey RCC building structure was modelled in ETABS software for zone v. The regular RCC structure and different forms of tubular structure are studied for dead load, live load, wind load, and seismic load. By using dynamic analysis, the seismic reactions and comparison investigation for both regular and different forms of tube structures have been observed. By comparing regular model with different forms of tube structure time period reduces around 32% in bundle tube structure, the displacement is reduced in bundle tube structure about 51% to 70% and drift reduces about 50% to 70% in bundle tube structure when regular model structure hence bundle tube structure is giving good results so when we design the bundle tube structure with stiffness and mass irregularity the values like time period, displacement and drift values is almost same hence bundle tube structure is most suitable type of structure to resist lateral loads in high rise structure with mass and stiffness irregularity or without mass and stiffness irregularity.
Key Words: seismic and wind load, bundle tube structure, mass and stiffness irregularity, Etabs.
