1           Units for Planning

·         Planning workhours per week: 56

·         Planning workdays per week: 7

·         Planning weeks per month: 4.3

2           Structural Works Cycle Time

·         Cycle time for in-situ RC high-rise building using system FW: 9-12d

·         Cycle time for in-situ RC high-rise building using conventional FW: 13-16d

·         Cycle time for the initial story or roof part: 17-20d

·         Cycle time for steel structure with Bondek system: 5-7d

3           Architectural Works Cycle Time

3.1          General sequence

Skim coat (before brickwall to have no-block move around of the scaffold) > Brickwall and window / door frame > M and E piping > Internal plastering > Waterproofing > Screeding > Aluminium Works (refer to the framework.  The external aluminium works can start when the structure goes up to certain level so that the frame work can work downwards) > Wall tile / marble > Suspended ceiling > Floor tile / marble > Window glazing > Kitchen cabinet > Wardrobes > Floor parquet > Door panel / ironmongery > Internal painting > Sanitary ware > External plastering > External painting (external plastering and painting are independent from internal finishing works).

3.2          Cycle Time

The architectural works is carried out trade by trade.  The cycle time for each trade shall not be faster than the structural work cycle time.

4           Sectional Construction Period

·         1 Basement including piling work: 6-10m

·         Architectural and M&E works after completion of structural works:

- For Condominium: 6m

- For Factory: 4m

5           Construction Joint and Zone / Block

·         Follow the design sector, e.g., block, pour strip, etc.

·         1/3 of a beam

·         Consider pre-stressed concrete length for work.  The pour strip is a natural division.

·         Not more than 800-m2

·         Consider access when sequencing construction zones (not to block the access)

6           General Architectural Works Sequence

6.1          Internal Finishes

·         When N-level is under structural construction, the N-1 level is maintained propping and strutting.  The N-2 level starts brickwork and followed by M&E piping.

·         “Wet” first then “Dry”.  That is to say, for a room or a confined space, start “wet” trades (skim coat, plastering, floor screeding, tiling, marbling, etc.), then “dry” trades (partition, carpentry work, steel work, etc.).

·         “Top” first then “down”.  For several concurrently running “wet” trades or “dry” trades, work starts from the ceiling, to the wall, to the kicker and floor.  For example, normally, do suspended ceiling first, then do floor marble and tiles.  This is because the finishing sealant to the ceiling panel is somehow a “wet” trade, and may drop down to the floor.

6.2          External Finishes

·         Generally, there is no constraint between internal and external finishing works.

·         Two types of external finishes: “wet” and “dry”.  “Wet” refers to the traditional painting, and “dry” refer to the envelope type of curtain structure attached to the structure, such as cladding stone, curtain wall, etc.

·         Vertically, for a high-rise building, it may divide the whole external wall into several “zones” and separate them with temporary protection platform.  Sequence is always from the top to down.

7           General M&E Works Sequence

·         From the view of the system, the M&E works can be categorized as plumbing and sanitary works, electrical works, mechanical ventilation and air-conditioning and fire protection system.

·         From the view of the actual work, the M&E works can be sequenced as: sleeve penetration and embedded components > metal work (tray, channel, etc.) and piping > cable pulling > equipment installation.

·         Penetration and embedded components start with the structural works.  Piping underneath the ceiling and along the wall starts with the brickwork.

8           Standard Design Procedures


Note: the commencement of design may be earlier than the award of contract by 2m.

 

9           Standard Completion Stage

 

 

 

10        Standard Procedures for Material and Shop Drawing Preparation, Submission and Approval for Architectural Works

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


11        Standard Procedures for Material and Shop Drawing Preparation, Submission and Approval for M&E Works