Paul Bussey - IIRSM Bussey - The RIBA's... · AHMM Architects, RIBA, IIRSM Demystifying the...

Paul BusseyRoyal Institute of British

Architects

Join in on twitter #IIRSMCDM17

The reality of CDM 2015

A practical look at the Principal Designer role

AHMM Architects, RIBA, IIRSM

Demystifying the Principal Designer Role

The RIBA’s view of the Principal Designers Role



The Principal Designer to replicate the Principal Contractor

CDM-C



A Designer with Control of the Pre-Construction Phase

• Not a person but a corporate function- ( could be a one man company)

• A designer with appropriate SKE and organisational capability as determined by

their professional body eg. ICE, RICS,I StructE, CIBSE, CIAT, RIBA, etc

• Must plan, manage and monitor the pre-construction phase AND coordinate

matters relating to H&S during the pre-construction phase……..

• Take account of the General Principles of Prevention ( sfarp) which provide a

framework for consideration of potential risks ie. A qualified NOT absolute duty

• On domestic projects the PD role is NO DIFFERENT to commercial projects

except the client duties may be deemed to the PC or PD. ( App. 6 L 153).

• This additional PD function needs resourcing and therefore additional fees. (This

is an area of some ambiguity,domestically, and to be raised with the HSE)

The Principal Designer – Must be:-



DIOHAS @ RIBA

Mission StatementAIMS

➢understanding of proportionate and

practicable health and safety issues

amongst construction designers.

➢Provide health and safety information

and procedures to encourage the growth

of a safer industry.

➢To achieve this through

•Education

•Understanding

•Clear Communications

➢Provide a national standing of

architectural and building design related

health and safety issues.

http://www.architecture.com/Home.aspx



What should a Principal

Designer really do!

Design out all risk?

But this has generally been

done at early concept stages

or

Help to MANAGE Design Risk?

But how???



Risk Identification, Evaluation, Reduction &

Communication Process by Workstages

Client & Lead Designer

+ Principal Designer

+ Designers & Specialists

Contractor / Worker/ FM

Strategic Definition and Brief

ConceptDesign

DetailedDesign

Procurement Tender

Construction Planning

+ Principal Contractor & subcontractors

Construction &Handover

Project CDM Strategy & Site Risks

Pre-constructionInformation(Initial Design Risks) Pre-construction

Information(Developed Design Risks)

Construction Phase Plan & Site Risks

Significant Risk /Benefit Tolerability

Commercial Decisions VE

Stage

0-1

Stage

2 -3Stage

3-4

Stage

3-4Stage

4-5

Stage

6-7

H&S File & Maintenance Risks

RIBA Work Stages

Ris

k T

ole

rability

BUT HOW?

Contractor/Engineering Hazard Log

A B C D E G I J K L M N O P

Status

L S R L S R

Active/

Closed

S.1 S01 piers C,M,D TAN

(Jacobs)

Working in proximity to live

traffic

4 5 20 S01 crosses several major roads and

impossible to configure within alignment

constraints to avoid constructing near live

traffic. Risk cannot be eliminated or

significantly reduced. Position piers as far

away from live traffic as possible. Single span

3 5 15 Note on drawing - method statement required

to cover particular issues relating to the

complexity of the existing slip roads and

A282 underneath and requirements for

temporary road closures for pier construction.

Tim Nicholson 17/05/06 & 21/05/06 Active M Bell Works to be carried out with lane

closures in accordance with Costain TM

phases. Provide proteced safety zone

with barriers

S.2 S01 Working in A2 c.r.

adjacent to live traffic

C,M,D TAN

(Jacobs)


traffic

4 5 20 S01 crosses several major roads and

impossible to configure within alignment

constraints to avoid constructing near live

traffic. Cannot be eliminated and therefore no

mitigation available to designer.


to address the particular difficulty of working

in an island site

Tim Nicholson 17/05/06 & 21/05/06 Active M Bell Works to be carried out with lane

closures in accordance with Costain TM

phases. Provide proteced safety zone

with barriers

S.3 Pier bearing installation,

maintenance &

replacement (S01, S04,

S10(N) & S10(S)

M TAN

(Jacobs)


traffic. Working at height

5 5 25 Design as integral bridges without bearings

considered but structure too long for this. No

alternative mitigation available to designer in

this respect.


addressing handling and installing of heavy

components at height with restrictive

clearances. Log in H&S file.

Tim Nicholson 17/05/06 & 25/05/06 Residual risks

to be noted in H&S plan - barrriesrs

& TM required

Active M Bell Provide protected safety zone with tvcbs

to mitigate traffic risk.

S.4 Inspecting joints and

bearings at abutments

(S01, S04, S10(N) &

S10(S)

M TAN

(Jacobs)

Working at height. 3 5 15 Provide enclosed abutment galleries 2 2 4 RRR <6 - no further action required Tim Nicholson 17/05/06 & 21/05/06 Closed M Bell

S.5 Painting of steelwork

(S01, S04, S10(N) &

S10(S)

C,M TAN

(Jacobs)

Working at height. 3 5 15 Use weathering steel 1 5 5 RRR <6 - no further action required Tim Nicholson 17/05/06 & 21/05/06 Closed M Bell

S.6 Concrete impregnation C TAN

(Jacobs)

Use of potentially toxic

substance (silane)

4 2 8 Apply for Departure from Standards to use

less toxic substance (Pavix) or to use

concrete additive.

4 1 4 RRR <6 - no further action required Tim Nicholson 17/05/06 & 21/05/06 Closed M Bell

S.7 Parapet installation

(S01, S04, S10(N) &

S10(S)

C TAN

(Jacobs)

Working at height, debris falls 3 5 15 No mitigation available to designer at

installation stage.


to address the particular dufficulty of providing

temporary edge protection while installing the

permanent edge protection at the same

location. Log in H&S file - maintenance

wpork on the outside of the parpap

Tim Nicholson 17/05/06 & 21/05/06 Active M Bell Cantilever formwork left in position until

parapet installation complete

S.7a Parapet maintenance

(S01, S04, S10(N) &

S10(S)

M TAN

(Jacobs)

Working at height, debris falls 3 5 15 Use aluminium parapet to minimise

maintenance

1 5 5 RRR <6 - no further action required. Tim Nicholson 17/05/06 & 31/05/06 Residual risks

to be noted in H&S plan

Closed M Bell

S.8 Placing deck formwork

(S01, S04, S10(N) &

S10(S)

C TAN

(Jacobs)

Working at height. 5 5 25 No mitigation available to designer. 3 5 15 Note on drawing - method statement

required. Consider placing deck formwork at

ground level and lifting into place with beams.

Otherwise special precautions e.g.netting,

harnesses, will be required to ensure safety of

operatives while working on bare st

Tim Nicholson 17/05/06 & 21/05/06 Active M Bell Permanent formwork placed where

possible at ground level and lifted into

place with main steel.

S.9 Placing deck formwork

(S01, S04, S10(N) &

S10(S)

C TAN

(Jacobs)

Debris falling onto motorway

and construction site.

5 5 25 No mitigation available to designer 3 5 15 Note on drawing - method statement required

- see above - but addressing containment of

materials by use of netting or similar.

Tim Nicholson 17/05/06 & 21/05/06 Active M Bell Any formwork erected at height to be

carried out wijt lane closures in place or

area beneath enclosed

S.10 Site splicing of steelwork

(S01, S04, S10(N) &

S10(S)

C TAN

(Jacobs)

Working at height. 3 5 15 Minimise number of splice positions. 2 5 10 Note on drawing - method statement required

to address handling of heavy components at

height.

Tim Nicholson 17/05/06 & 21/05/06 Active M Bell All work at height to be carried out wijt

lane closures in place or area beneath

enclosed

PART B - TRANSFER OF INFORMATION

Initial Risk

Rating

Residual

Risk Rating

Action by Designer to

Eliminate/Reduce Risk Rating

CDM Design Hazard Log: Project 'X'

PART C - CONTRACTOR IMPLEMENTATION

Au

tho

r -

Nam

e &

Co

mp

an

y

PART A - HAZARD ELIMINATION/REDUCTION

Information provided about the

residual hazards -

Drawing/Document

STRUCTURES

External Review

of Control

Measures? Y/N

(by whom)Control Measures required

Control Measures

identified in:

Construction

Manager

responsible -

NamePh

as

e Designer/Constructor

Discussion Date &

CommentsRef

Specific

Location/Activity

Design Manager

responsible - NamePotential Hazards

F H

Is it this?



Simple Register with risk identification, actions, ownership and timings

Or this?



Designer Guidance –

Symbols for Design Drawings

Identifying hazards that cannot be mitigated

Identifying compulsory actions to avoid risks

Identifying actions that should be prohibited

Identifying significant safety information to pass on

Or this ?



Contractor Guidance – Site Drawing

Safety Symbols & Signage

Are these needed for architectural design

drawings?

http://www.archersafetysigns.co.uk/prod-detail.asp?id=6&a=100&b=199&prodid=3465











Site Analysis – Underground

Services for Initial Design and

Construction Phase

Underground

electrical cables

Subscan Survey -hazards identified with symbols

Choke Points

http://www.leosignage.com/signage_Danger,+Caution,+Warning+Signs-129.html



Site Contamination - Asbestos Survey

Information on design drawings

.

Survey drawings to be used for asbestos survey

Areas of asbestos and not surveyed identified



Detailed Design- Significant

Risks “only” Identified with

Symbols

Significant risks “only” identified on drawings

Key and symbols identify

significant risks

Other symbols used for significant risks only



Guidance- Design to avoid

silica and dust creation and

exposure by detailing

Avoid

“Notched”

block details

Avoid unnecessary or excessive cutting

But how do you add this?



Guidance- Design to

avoid silica and dust

creation and exposure

generic trade risks, by

specification?

Or this?



Contract Stage Design – Riser Ducts

Large duct at party wall, fall risk highlighted

1. Sleeved services 2. Large metal mesh

3.Small metal mesh prevents falls in open areas

Or this?



Detailed /Contract Design –

Heavy Masonry Units

Weight of units significant

Traditional attitudes Mechanised approach

Or this?



Roped Access- To unusual

structuresThe HSE’s description of Roped

Access

Terminal 5

Heathrow

Spinnaker

Tower

Roped access IRATA

guidelines

Or this?



A simple “Architectural Project” Risk Register to record

“ Significant Risks” only



Architectural Design sets the level of

construction risk that is acceptable to the

project team taking all other factors into

consideration

only the “significant design and site risks”

need special identification for contractors.

Contractors need to then deal with the

construction stage risk management

associated with these “significant risks”

in addition to their normal site and trade risk

management issues.



Thank you

Date post:	17-Mar-2018
Category:	Documents
Upload:	trinhdien
View:	220 times
Download:	4 times

Paul Bussey - IIRSM Bussey - The RIBA's... · AHMM Architects, RIBA, IIRSM Demystifying the...

Documents