1. 1 CV4902- Construction Methods Dr David Chew

2. 2 Construction Considerations Site layout plan Outline of entire construction process Details of temporary works Choice of construction methods Types of construction machineries & equipment to be used Potential problems & difficulties during construction Contingency plans for item above Safety precautions & measures Site maintenance & cleanliness Outline of construction cost Outline of construction schedule

3. 3 Outline of Construction Procedure Phase 1 * on-site works - site clearance & mobilization - erecting hoarding/safety signs - setting up site-office & facilities - creating access/excavation works - piling & excavation

4. 4 Phase 1 (Continued) * off-site works - fabricate formworks - fabricate reinforcements - fabricate precast concrete (or steel) beams - fabricate precast concrete (or steel) staircases

5. 5 Phase 2 * Construction of pile-caps * Construction of concrete piers * Construction of concrete cross-heads Phase 3 * launching of precast concrete/steel beams * launching of precast concrete/steel staircases * concreting of slab (floor)

6. 6 Phase 4 * Erection of steel roof truss * Other building structural works under the roof * Installation of roof cladding

7. 7 Phase 5 * inspection * testing & commissioning * permit for occupation/use * handover * operation

8. 8 Things To Look Out For Underground Services (Check, Double- Check!) Existing Foundations (Removed?) Safety during Construction/Road Diversion Site Constraints Access for Works Launching of Precast Beams/Columns Launching of Roof Truss

9. 9 Site Constraints Protection of Surrounding Structures/Facilities Types of Heavy Machineries to be Used Noise/Air/Water Pollution Disposal of Spoils and Wastes Limitation of Working Hours Just-In-Time Construction

10. 10 Safety Considerations Public Safety Safety Distance of Heavy Construction Machineries (from Existing Buildings & roadway) Restrictions during Busy Traffic Hours Protection of Existing Facilities Stability of Temporary Supports Procedure for Beam/Column Launching & Securing Stability of Lifting Crane during Launching