Advanced Concrete Design

Unit 1

Yield line theory for slabs - Basic principles - methods of yield line analysis. Deep beams - analysis - design as per BIS - design using strut and tie method. Chimneys: Analysis of stresses in concrete chimneys - uncracked and cracked sections - codal provisions - design of chimney.

Unit 2

Large span concrete roofs: Introduction – classification - behaviour of flat slabs - direct design and equivalent frame method - codal provisions - waffle slabs. Shells and Folded plates: Forms of shells and folded plates - structural behaviour of cylindrical shell and folded plate - method of analysis - membrane analysis – beam arch approximation - codal provisions - design of simply supported circular cylindrical long shells and folded plates.

Unit 3

Bridges: General – IRC Bridge code – loading standards – impact effect – wind load – longitudinal forces – centrifugal forces – force due to water currents – buoyancy effect – temperature effects – secondary stresses – erection – seismic force. Design of slab culvert – R.C box culverts – T-beam bridges – Concept on design of continuous bridges, balanced cantilever bridges, arch bridges and rigid frame bridges.