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)