Safety assessment in design and preparation phase
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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


Determing the risk

Determing the Risk


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 elements10.80

  • 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 elements10.80

  • 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 elements10.80

  • 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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