Safety assessment in design and preparation phase Arbouw Health and Safety in construction industry. Paul Swuste, TU Delft. Adri Frijters, Arbouw. Amsterdam, The Netherlands. www.arbouw.nl
Safety assessment in design and preparation phase Arbouw Health and Safety in construction industry. Paul Swuste, TU Delft. Adri Frijters, Arbouw. Amsterdam,
Mar 27, 2015
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Safety assessment in design and preparation phase
Arbouw Health and Safety in construction industry.
Paul Swuste,TU Delft.
Adri Frijters,Arbouw.
Amsterdam,The Netherlands.www.arbouw.nl
Problem
Design a modelmodel
designerdesigner can use
to chosechose between alternative buildingbuilding elementselements on
basis of safetysafety aspects
during execution phaseexecution phase
Method and techniques
• Literature review
• Method
• Test / case
• Falling from ….• Stumbling ….
Result
• Method – Analyse elements– Function and properties– Initial and final situation– Selection of alternatives– Activities – Assessment & improvements– Selection of element
• Based upon– BS8800– EN1005 and EN292-1
Case study
• Eurotoren
Floor systems
• Hollow-core beam slab
• Wide-slab floor
The method
1. Preconditions
2. Inventory of applicable building systems
3. Determing the boundaries of the system
4. Inventory of the activities per construction form
5. Identification of hazards
6. Determing the risk
7. Decision regarding the acceptability of the risk
8. Allocating the man-hours to the activities
9. Determing exposure
10.Choice of building element
The method
1. Preconditions
2. Inventory of applicable building systems
3. Determing the boundaries of the system
4. Inventory of the activities per construction form
5. Identification of hazards
6. Determing the risk
7. Decision regarding the acceptability of the risk
8. Allocating the man-hours to the activities
9. Determing exposure
10.Choice of building element
Inventory of the activities
Wide-slab floor1. Erecting guardrail
2. Setting out dimensions
3. Adjusting props
4. Laying slabs
5. Checking dimensions
6. Dimensions reinforcement
7. Transport reinforcement
8. Welding-wire meshing
9. Twisting reinforcement
10. Preparing pouring
11. Arranging equipment
12. Pouring floor
13. Clearing up
14. After care
15. Cleaning
16. Stripping props
Hollow core-beam floor1. Erecting guardrail
2. Setting out dimensions
3. Applying bearing felt
4. Inserting end filling
5. Laying floor elements
6. Fitting bars
7. Applying tension rods
8. Pouring joints
The method
1. Preconditions
2. Inventory of applicable building systems
3. Determing the boundaries of the system
4. Inventory of the activities per construction form
5. Identification of hazards
6. Determing the risk
7. Decision regarding the acceptability of the risk
8. Allocating the man-hours to the activities
9. Determing exposure
10.Choice of building element
Determing the Risk
Minor injury Injury Serious injury
Highly improbable
Insignificant risk
Acceptable risk
Moderate risk
Improbable Acceptable
riskModerate
riskSignificant risk
Probable Moderate
riskSignificant
riskUnacceptable
risk
The method
1. Preconditions
2. Inventory of applicable building systems
3. Determing the boundaries of the system
4. Inventory of the activities per construction form
5. Identification of hazards
6. Determing the risk
7. Decision regarding the acceptability of the risk
8. Allocating the man-hours to the activities
9. Determing exposure
10.Choice of building element
Acceptability of risk
Wide-slab floor
Falling and stumbling
The method
1. Preconditions
2. Inventory of applicable building systems
3. Determing the boundaries of the system
4. Inventory of the activities per construction form
5. Identification of hazards
6. Determing the risk
7. Decision regarding the acceptability of the risk
8. Allocating the man-hours to the activities
9. Determing exposure
10.Choice of building element
Allocating man-hours
Wide-slab floor1. Erecting guardrail 4.00
2. Setting out dimensions 2.00
3. Adjusting props 15.12
4. Laying slabs 13.00
5. Checking dimensions
6. Dimensions reinforcement
7. Transport reinforcement
8. Welding-wire meshing
9. Twisting reinforcement 19.50
10. Preparing pouring
11. Arranging equipment
12. Pouring floor
13. Clearing up
14. After care
15. Cleaning 14.33
16. Stripping props 15.12
Hollow core-beam floor1. Erecting guardrail 4.00
2. Setting out dimensions 2.00
3. Applying bearing felt 1.70
4. Inserting end filling 3.36
5. Laying floor elements 10.80
6. Fitting bars 0.08
7. Applying tension rods 0.08
8. Pouring joints 1.48
The method
1. Preconditions
2. Inventory of applicable building systems
3. Determing the boundaries of the system
4. Inventory of the activities per construction form
5. Identification of hazards
6. Determing the risk
7. Decision regarding the acceptability of the risk
8. Allocating the man-hours to the activities
9. Determing exposure
10.Choice of building element
Determing exposure
Wide-slab floor1. Erecting guardrail 4.00
2. Setting out dimensions 2.00
3. Adjusting props 15.12
4. Laying slabs 13.00
5. Checking dimensions
6. Dimensions reinforcement
7. Transport reinforcement
8. Welding-wire meshing
9. Twisting reinforcement 19.50
10. Preparing pouring
11. Arranging equipment
12. Pouring floor
13. Clearing up
14. After care
15. Cleaning 14.33
16. Stripping props 15.12
Hollow core-beam floor1. Erecting guardrail 4.00
2. Setting out dimensions 2.00
3. Applying bearing felt 1.70
4. Inserting end filling 3.36
5. Laying floor elements 10.80
6. Fitting bars 0.08
7. Applying tension rods 0.08
8. Pouring joints 1.48
Minor injury
InjurySerious injury
Highly improbable
Insignificant risk
Acceptable risk
Moderate risk
Improbable Acceptab
le riskModerate
riskSignificant
risk
Probable Moderate
riskSignificant
riskUnaccepta
ble risk
Choise of element
Wide-slab floor1. Erecting guardrail 4.00
2. Setting out dimensions 2.00
3. Adjusting props 15.12
4. Laying slabs 13.00
5. Checking dimensions
6. Dimensions reinforcement
7. Transport reinforcement
8. Welding-wire meshing
9. Twisting reinforcement 19.50
10. Preparing pouring
11. Arranging equipment
12. Pouring floor
13. Clearing up
14. After care
15. Cleaning 14.33
16. Stripping props 15.12
Hollow core-beam floor1. Erecting guardrail 4.00
2. Setting out dimensions 2.00
3. Applying bearing felt 1.70
4. Inserting end filling 3.36
5. Laying floor elements 10.80
6. Fitting bars 0.08
7. Applying tension rods 0.08
8. Pouring joints 1.48
Minor injury
InjurySerious injury
Highly improbable
Insignificant risk
Acceptable risk
Moderate risk
Improbable Acceptab
le riskModerate
riskSignificant
risk
Probable Moderate
riskSignificant
riskUnaccepta
ble risk
Conclusions and Recommendations
• Method works• Method is easy to use• Method is labour-intensive
• Database
• Use in case of doubt
• Fulfil safety in design phase
• Acceptable
Thank You
for your attention www.arbouw.nl
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