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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 model designer can use

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safety assessment in design and preparation phase
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
Problem

Design a model

designer can use

to chosebetween alternativebuildingelements on

basis of safety aspects

during execution phase

method and techniques
Method and techniques
  • Literature review
  • Method
  • Test / case

Falling from ….

Stumbling ….

result
Result
  • Based upon
    • BS8800
    • EN1005 and EN292-1
  • Method
    • Analyse elements
    • Function and properties
    • Initial and final situation
    • Selection of alternatives
    • Activities
    • Assessment & improvements
    • Selection of element
case study
Case study
  • Eurotoren
floor systems
Floor systems
  • Hollow-core beam slab
  • Wide-slab floor
the method
The method
  • Preconditions
  • Inventory of applicable building systems
  • Determing the boundaries of the system
  • Inventory of the activities per construction form
  • Identification of hazards
  • Determing the risk
  • Decision regarding the acceptability of the risk
  • Allocating the man-hours to the activities
  • Determing exposure
  • Choice of building element
the method1
The method
  • Preconditions
  • Inventory of applicable building systems
  • Determing the boundaries of the system
  • Inventory of the activities per construction form
  • Identification of hazards
  • Determing the risk
  • Decision regarding the acceptability of the risk
  • Allocating the man-hours to the activities
  • Determing exposure
  • Choice of building element
inventory of the activities
Inventory of the activities

Hollow core-beam floor

  • Erecting guardrail
  • Setting out dimensions
  • Applying bearing felt
  • Inserting end filling
  • Laying floor elements
  • Fitting bars
  • Applying tension rods
  • Pouring joints

Wide-slab floor

  • Erecting guardrail
  • Setting out dimensions
  • Adjusting props
  • Laying slabs
  • Checking dimensions
  • Dimensions reinforcement
  • Transport reinforcement
  • Welding-wire meshing
  • Twisting reinforcement
  • Preparing pouring
  • Arranging equipment
  • Pouring floor
  • Clearing up
  • After care
  • Cleaning
  • Stripping props
the method2
The method
  • Preconditions
  • Inventory of applicable building systems
  • Determing the boundaries of the system
  • Inventory of the activities per construction form
  • Identification of hazards
  • Determing the risk
  • Decision regarding the acceptability of the risk
  • Allocating the man-hours to the activities
  • Determing exposure
  • Choice of building element
the method3
The method
  • Preconditions
  • Inventory of applicable building systems
  • Determing the boundaries of the system
  • Inventory of the activities per construction form
  • Identification of hazards
  • Determing the risk
  • Decision regarding the acceptability of the risk
  • Allocating the man-hours to the activities
  • Determing exposure
  • Choice of building element
acceptability of risk
Acceptability of risk

Wide-slab floor

Falling and stumbling

the method4
The method
  • Preconditions
  • Inventory of applicable building systems
  • Determing the boundaries of the system
  • Inventory of the activities per construction form
  • Identification of hazards
  • Determing the risk
  • Decision regarding the acceptability of the risk
  • Allocating the man-hours to the activities
  • Determing exposure
  • Choice of building element
allocating man hours
Allocating man-hours

Hollow core-beam floor

  • Erecting guardrail 4.00
  • Setting out dimensions 2.00
  • Applying bearing felt 1.70
  • Inserting end filling 3.36
  • Laying floor elements 10.80
  • Fitting bars 0.08
  • Applying tension rods 0.08
  • Pouring joints 1.48

Wide-slab floor

  • Erecting guardrail 4.00
  • Setting out dimensions 2.00
  • Adjusting props 15.12
  • Laying slabs 13.00
  • Checking dimensions
  • Dimensions reinforcement
  • Transport reinforcement
  • Welding-wire meshing
  • Twisting reinforcement 19.50
  • Preparing pouring
  • Arranging equipment
  • Pouring floor
  • Clearing up
  • After care
  • Cleaning14.33
  • Stripping props 15.12
the method5
The method
  • Preconditions
  • Inventory of applicable building systems
  • Determing the boundaries of the system
  • Inventory of the activities per construction form
  • Identification of hazards
  • Determing the risk
  • Decision regarding the acceptability of the risk
  • Allocating the man-hours to the activities
  • Determing exposure
  • Choice of building element
determing exposure
Determing exposure

Wide-slab floor

  • Erecting guardrail 4.00
  • Setting out dimensions 2.00
  • Adjusting props 15.12
  • Laying slabs 13.00
  • Checking dimensions
  • Dimensions reinforcement
  • Transport reinforcement
  • Welding-wire meshing
  • Twisting reinforcement 19.50
  • Preparing pouring
  • Arranging equipment
  • Pouring floor
  • Clearing up
  • After care
  • Cleaning14.33
  • Stripping props 15.12

Hollow core-beam floor

  • Erecting guardrail 4.00
  • Setting out dimensions 2.00
  • Applying bearing felt 1.70
  • Inserting end filling 3.36
  • Laying floor elements 10.80
  • Fitting bars 0.08
  • Applying tension rods 0.08
  • Pouring joints 1.48
choise of element
Choise of element

Wide-slab floor

  • Erecting guardrail 4.00
  • Setting out dimensions 2.00
  • Adjusting props 15.12
  • Laying slabs 13.00
  • Checking dimensions
  • Dimensions reinforcement
  • Transport reinforcement
  • Welding-wire meshing
  • Twisting reinforcement 19.50
  • Preparing pouring
  • Arranging equipment
  • Pouring floor
  • Clearing up
  • After care
  • Cleaning14.33
  • Stripping props 15.12

Hollow core-beam floor

  • Erecting guardrail 4.00
  • Setting out dimensions 2.00
  • Applying bearing felt 1.70
  • Inserting end filling 3.36
  • Laying floor elements 10.80
  • Fitting bars 0.08
  • Applying tension rods 0.08
  • Pouring joints 1.48
conclusions and recommendations
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

[email protected]

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