JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD

Course Objective

To impart knowledge on analysis of tall buildings.

Course Outcomes

The learner will be able to analyse and chose a appropriate systems for tall

buildings.

UNIT - I

Introduction : Evolution of tall buildings - Classification of Buildings – Low-rise, medium-rise, high- rise –– Ordinary framed buildings & Shear-wall buildings –Behaviour of buildings under lateral loads like Wind loads, Earthquake loads & Blast loads – Basic structural & functional design requirements – Strength, Stiffness & Stability.

UNIT - II

Lateral load resisting elements : Frames, Shear walls & Tubes – Shear, Bending & combined modes of deformation – Structural behavior of Rigid frames – Simplified methods of analysis – Substitute frame method, Portal method, Cantilever method, Equivalent frame method –Structural behaviour of Shear walls – Approaches of analysis – Elastic continuum approach & Discrete approach -- Structural behavior of Tubes –Actions.

UNIT - III

Choice of System for a Building: Frame building, Shear wall building, Shear walls acting with frames, Single framed tubes – Other structural forms – Staggered Wall-beam system, Tube-in-tube system, Base isolation technique for earthquake resistance. Load distribution in a tall building – Load resisted by different shear walls & frames – Determinate & Indeterminate problems – Equivalent Stiffness method.

UNIT - IV

Methods of Analysis: Shear walls without Openings – Estimation of Stiffness by simple Cantilever theory & Deep beam theory – Shear walls with Openings – Equivalent frame for large openings – Muto’s method for small openings –Elastic Continuum approach – Coull & Chowdhry’s method – Design Charts – Limitations of Continuum approach. Shear wall- Frame Interaction: Sharing of loads between wall & frame - Different methods – comparison -- Khan & Sbrounis’ method – Design charts - - Mac Leod’s method - Advantages & limitations -- Cooperation of Floor slabs – Equivalent width.

UNIT - V

Modern Methods: Analysis of Tall buildings by Stiffness method – Available Softwares for analysis of tall buildings.

TEXT BOOKS:

• 1. Design of Tall Buildings by Taranath B., McGraw Hill.

REFERENCES

• 1. Reinforced Concrete Design of Tall Buildings by Bungales. Taranath, CRC Press.
• 2. Analysis of Shear Walled Buildings by S. M. A. Kazimi& R. Chandra, Tor-steel Research Foundation, Calcutta, India.
• 3. Analysis of Framed Structures by Gere & Weaver
• 4. Design of Building Structures by Wolfgang Schuller, Prentice Hall