WELCOME. to the Presentation on. Guest Lecture for Course CE- 401 at Department of Civil Engineering (Seminar Room) BUET, Dhaka

Transcription

1 WELCOME to the Presentation on Guest Lecture for Course CE- 401 at Department of Civil Engineering (Seminar Room) BUET, Dhaka Prepared by Dr. Toufiq M. Seraj Engineer-Planner Managing Director, Sheltech (Pvt.) Ltd.

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4 CEO Site Engineer Site Engineer n

5 GENERAL PROCEDURE TO START CONSTRUCTION IN REAL ESTATE After getting detailed drawing of a Project from Design Section, it is submitted to the Construction Department to undertake the construction activities. From the very beginning to completion of the project, the whole procedure needs to be managed properly to maintain the quality of works and to finish the project efficiently and timely. Construction Department is responsible to supervise each and every stages of construction activities.

6 STAGES OF CONSTRUCTION MANAGEMENT Arrangement of sufficient skilled Manpower according to project size. Preparation of Construction schedule. Quality control of construction works following the standards and procedures. Monitoring work progress periodically. Ensure Safety & Security at Construction Site(s). Management of contractors and workers to achieve targets. Provide training periodically/ regularly to all project-in-charge and newly recruited engineers.

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8 TYPICAL SHELTECH ORGANOGRAM OF CONSTRUCTION MANAGEMENT For 5 to 15 apartments For 16 to 25 apartments Divisional Head Divisional Head Site Engineer Project Engineer Assistant Site Engineer Site Engineer M.M.O/ R.H.O. Curing Man R.H.O./ M.M.O Curing Man M.M.O. - Mixing Machine Operator R.H.O. - Rope Hoist Operator

9 TYPICAL SHELTECH ORGANOGRAM OF CONSTRUCTION MANAGEMENT For 26 to 40 apartments Divisional Head Dy. Executive Engineer/ Project Engineer Site Engineer/ Sr. A. S. E/ A.S.E Site Engineer/ Sr. A. S. E/ A.S.E M.M.O./ T.H.O/R.H.O M.M.O./ T.H.O/R.H.O Curing Man M.M.O. : Mixing Machine Operator R.H.O. : Rope Hoist Operator T.H.O.: Tower Hoist Operator

10 TYPICAL SHELTECH ORGANOGRAM OF CONSTRUCTION MANAGEMENT For 41 to 70 apartments Divisional Head Assistant Chief Engineer/ Executive Engineer Project Engineer/ Site Engineer Project Engineer/ Site Engineer ASE/ Sr. ASE ASE/ Sr. ASE ASE/ Sr. ASE M.M.O/T.H.O/R.H.O. M.M.O/T.H.O/R.H.O. T.H.O/R.H.O. T.H.O/R.H.O. Curing Man Electrician M.M.O :Mixing Machine Operator T.H.O.: Tower Hoist Operator R.H.O. :Rope Hoist Operator

11 TYPICAL SHELTECH ORGANOGRAM OF CONSTRUCTION MANAGEMENT For 71 to 100 apartments Divisional Head Assistant Chief Engineer/ Executive Engineer Project Engineer Project Engineer Site Engr./ Sr. ASE Site Engr./ Sr. ASE Site Engr./ Sr. ASE Site Engr./ Sr. ASE/ ASE Site Engr./ Sr. ASE/ASE Site Engr./ Sr. ASE M.M.O/ T.H.O/R.H.O M.M.O/ T.H.O/R.H.O M.M.O/ T.H.O/R.H.O T.H.O/R.H.O T.H.O/R.H.O T.H.O/R.H.O Electrician MMO :Mixing Machine Operator T.H.O. : Tower Hoist Operator R.H.O. :Rope Hoist Operator

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13 PREPARATION OF CONSTRUCTION SCHEDULE Depends on size of the Project, availability of Manpower and so on. For an example: Project Name : SHELTECH AFZAL NEER No. of Units : 20 No. of Stories : 11 (B+G+10) Area : Sq. ft.

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17 STRUCTURAL CHECKLIST 1. Footing Checklist. 2. Column Checklist. 3. Slab Checklist. 4. Beam Checklist. 5. Stair Checklist. 6. UGWR (Under Ground Water Reservoir) Checklist. 7. OHWT (Over Head Water Tank) Checklist 8. Lift Machine Room Checklist 9. Lift Core Checklist 10. Retaining Wall/ Shear Wall Checklist 11. Pile Cap Checklist 12. Pile Checklist

18 SAMPLE CHECKLIST

19 CHECK LIST OF FINISHING WORKS 1. Brickwork, Lintel & False slab 2. Inside plaster 3. Outside plaster 4. Door frame 5. Window grill 6. Wall tile 7. Floor tile 8. Aluminum work in window 9. Door shutter 10. Painting work 11. Other works

20 CHECK LIST OF PLUMBING & SANITARY WORKS 1. Groove cutting 2. G.I. Wiring 3. Vertical pipes 4. Horizontal pipes 5. Sanitary fitting & fixture 6. Drainage system (Inspection pit, sewer pipe, connection) 7. UGWR (pump, piping & connection) 8. OHWT (piping & connection) 9. Rain water pipes & disposal

21 CHECK LIST FOR STATUS OF ELECTRICAL WORKS 1. Groove cutting & Conduit laying 2. Wiring 3. Position of switch & socket 4. Patch up works 5. Sub station 6. Lift 7. Other Works

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23 AVAILABLE STANDARDS: 1. Bangladesh National Building Code (BNBC), Dhaka Metropolitan Building Construction Rules, 2008

24 CONCRETE MIX RATIO

25 Corner reinforcement: Corner reinforcement for beam supported 2-way slabs

26 REINFORCING DETAILS FOR SLAB OPENINGS

27 RECOMMENDED END HOOKS

28 END HOOK OF STIRRUPS End Hooks of Stirrups are located alternately at top corner bar of section

29 TIE SPACING OF COLUMN AT JOINTS FOR EARTHQUAKE LOADING **At least 3 (three) Nos. Ties must be continued through Beam-Column joint.

30 STIRRUP SPACING OF BEAMS AT JOINTS FOR EARTHQUAKE LOADING

31 Some pictures from construction site representing good construction works

32 GOOD CONSTRUCTION PRACTICES Column ties (End hooks 3 long)

33 GOOD CONSTRUCTION PRACTICES U separator in wall bars Lift core column bar & ties

34 GOOD CONSTRUCTION PRACTICES End hook of beam stirrups Beam bar placement through the column bars avoiding congestion

35 GOOD CONSTRUCTION PRACTICES Beam bar placement through the column bars avoiding congestion

36 GOOD CONSTRUCTION PRACTICES Block with proper size and adequately cured Adequate number of struts to support column shutter

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38 Task SubTask Sub-Sub Task Percentage Structural= 45% Isolated Footing= E/C = 1.35% Footing = 3.15% Short column = 1.35% Grade Beam+WR a) Shuttering+ Rebar binding = 1.35% b) Casting = 1.80% Piled Foundation= Piling = 3.15% Foundation= Pile Cap = 2.25% Short column = 0.45% Grade Beam+WR = a) Shuttering+ Rebar binding = 1.80% b) Casting = 1.35% Mat= Earth cutting = 1.80% CC Work = 0.45% Rebar binding for Mat+ RW = 3.60% Casting for Mat+ RW = 3.15%

39 Foundation= Super Structure= Piled Mat= Piling = 3.15% Earth cutting = 1.80% CC Work = 0.45% Rebar binding (Cap+ Mat) = 2.25% Casting (Cap+ Mat) = 1.35% Column= 9.00% Rebar binding = 3.6% Form Work = 3.60% Casting = 1.80% Beam & Slab= 27% Form Work = 9% Rebar binding = 9% Casting = 9% Civil Work= 12% Brickwork= 6.60% Upto 2.5' height = 1.80% Upto 7' height = 1.56% Lintel, False slab = 1.20% Upper portion = 1.20% Duct casting+ B/W = 0.24% Grill fitting = 0.36% D.F fitting = 0.24% Plaster= 5.40% Ceiling = 1.20% Wall = 2.40% Outside = 1.80%

40 Electrical work= 9.5% Pipe laying+pipe fitting+ Groove cutting = 1.91% SDB+ Mk box fitting = 1.42% Internal wiring = 3.31% SDB to MDB wiring = 0.95% Switch socket fitting = 0.48% Common space+ Granding etc. G. Floor = 0.48% Sub-station + Generator setting commission = 0.95% Plumbing work= 8.50% Groove cutting = 1.28% Vertical Piping = 1.70% Wiring = 2.12% Testing = 0.42% Roof top work = 0.42% Ground floor work = 1.70% fixture fitting = 0.86% Finishing Work= 25% Tiles work 10% a) Wall = 3.75% b) Floor (Toilet+ Kitchen) = 2.50% General floor = 3.75% Paint Work (Inside) 4% a) Upto sealer = 1.18% b) Putty = 0.94% c) 1st coat = 0.70% d) Chit putty & 2nd coat = 1.18%

41 Paint Work (Out side) 3% a) Upto sealer = 1.25% b) Putty (if instructed) = c) 1st coat = 0.50% d) Chit putty & 2nd coat = 1.25% Enamel Paint 1% a) 1st coat = 0.46% b) 2nd coat = 0.27% c)3rd coat = 0.27% Polish 1% a) Primary coat ( Astor) = 0.13% b) Upto 2nd coat polish = 0.38% c) Upto 6th coat polish = 0.38% Glazing = 0.13% Door shutter fitting & finishing 1.50% a) Door making = 0.75% b) Fitting = 0.45% c) Accessories fitting = 0.30% Aluminium Work 3% a) Framing = 2% b) Glass fitting = 1% Others 1.50% Lift+ Utility+ L.C.+ Gardening+ F.F. = 1.50% TOTAL = 100%

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43 GENERAL SAFETY CHECKLIST Particulars Sl. No. Items for check General Piling Foundation 1 No. of Entrance 2 Guard post in Entrance 3 Stick, whistle, Torch light, Helmet, Umbrella, First aid box, Movement register, Material In/Out register, Labor register at Guard Post 4 Ground floor cleaning 5 Rubbish Dumping place cleaning 6 Temporary electrical wiring with Double insulated wire 7 Use of Socket & Plug for Electrical connection 8 Check Fencing at Boundary area 9 Fencing side lighting system 10 Safety signs 1 Proper lateral protection for Rig. 2 Pile mud removal 1 Earth protection for sliding (If req.) 2 Safe walkway for movement 3 Safety Barrier at earth excavation side.

44 GENERAL SAFETY CHECKLIST Particulars Sl. No. Items for check After 1st slab After 2nd slab & onwards For Workers For Project Staff 1 Shade at entry 2 Ground floor lighting system 3 Safety barrier at open slab (outside). 1 Use of safety Barrier in stair, Lift door, Voids. 2 Use of safety barrier at every opening. 3 Floor cleaning 4 Stair, lobby lighting system 5 Canopy & Safety net i) 9 to 13 floor=canopy at 2 levels ii) 14 to 19 floor=canopy at 3 levels iii) 20 to 25 floor=canopy at 4 levels 1 Proper use of Safety Belt in working place. 2 Use of safety helmet 3 Wears safety uniform ( Pant, Gumboot ) 4 Use of Safety Glass, Gloves during welding 1 Use of Helmet at working place. 2 Use of Safety Shoe.

45 ELECTRICAL SAFETY CHECKLIST Sl. No. 1 Items for check Use of 1/2" or 3/4" flexible pipe for single core temporary electrical connection. 2 Uninsulated cable dressed by proper taping Use of double insulated (like 40/.076) flexible cable for Grinding machine, Tiles cutter, Rod cutter & other machine Use of Socket & Plug for Electrical connection (direct connection will not be allowed) Use of ceramic plug (3 pin) and circuit breaker or cut out fuse for high power machine (like welding machine, Roof hoist). 6 Use of proper rating socket (like 5A, 10A, 15A, 20A) 7 Use of wooden board at each floor for any temporary power supply. 8 Use of one DP/SP circuit breaker at each board. 9 Electrical safety ensured by safety in charge in the morning

46 CORPORATE OFFICE PERSONNEL FEEDBACK Topics 1 Were you given a safety helmet? 2 Is the site clean? 3 Is the entry to the site clean? Did you notice any personnel 4 without helmet in the project? Did you notice any missing safety 5 barriers? 6 Was the Safety check list filled up? Do you think a client can move 7 around the site safely and comfortably? Is the fire extinguisher/sand buckets 8 in the proper place? Evaluation Yes No N/A

47 CLIENTS FEEDBACK Topics 1 Was the site clean? 2 Was your visited apartment clean? Evaluation Yes No N/A Comments Were you comfortable walking around? Were you given a safety helmet? Did the Project personnel give sufficient attention to you? Was your site visit enjoyable?

48 TRAINING FACILITIES Necessary training facilities should be provided to make employees more efficient. It ultimately increases the quality of construction works. Training facilities may be given to: All project-in-charges Newly recruited engineers Labors

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