Materials, Accessories and Proprietary Products – Lumber – Types – Finish – Sheathing ratio – Working stresses -Repetitive member stress – Plywood -Types and grades -Textured surfaces and strength – Reconstituted wood -Steel -Aluminium -Form lining materials.
Planning- Overall Planning -Detailed planning – Standard units – Corner units – Schedule – Planning at Tender stage – Development of basic system – Planning for maximum reuse – Planning examples – Site layout plan-Crane arrangements -Recheck plan details – Planning for safety- Transporting plant -Wales and ties – Vertical transportable form work.Design considerations- Live loads and Wind pressure -Concrete pressure on form work- concrete density -Height of discharge -Temperature -Rate of Placing -Consistency of concrete – Vibration – Hydrostatic pressure and pressure distribution -Examples -Adjustment for non-standard conditions- Basic simplification – Beam forms -Slab forms- Column forms -Wall forms -Allowable stresses – Check for deflection, bending and lateral stability – Codal provisions Examples on form designs. Building and Erecting the Framework- Location of job mill -Storage -Equipment-Form for Wall footings -Column footings -Slab on grade and paving work -Highway and Airport paving – External vibration – Prefabricated panel systems – Giant forms -Curved wall forms –Erection Practices – Column heads-Beam or girder forms – Suspended forms- Concrete Joint construction- Flying system forms.
Formwork Failures – Causes of Failures – Case studies- Finish of exposed concrete –Design deficiencies – Safety factors -Stripping sequence – Reshore installation -Advantages of reshoring.Special Formwork – Shell forms -Design considerations -Loads -Building forms –Strength requirements -Tunnel forming components – Curb and gutter forms – Invert forms -Arch forms – Concrete placement methods – Slip forms-Principles -Types -Advantages -Functions of various components-Planning -Safety in slip forms -Special structures built with slip form technique – Shuttering for Precast members and continuous casting forms.Scaffolding – Different types -Putlog and Independent scaffold -Single pole scaffolds – Fixing ties- Spacing of ties,- bracing, safety netting -General safety requirements-.Working & Erection at Site : Mock up and hands on assembly for various vertical & Horizontal formwork , assembly , checking & dismantling- key considerations. (Site visits preferred)