ˇ 5HFHLYHG 3 ˆ - East Staffordshire Application... · 2014. 6. 17. · Outline Acoustic Design Review Burton and South Derbyshire UTC Burton upon Trent REFERENCE: 117828 AC 3v3

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This report shall not be reproduced except in full without the written approval of HRS Services Ltd.

Authorised by: Silvio Murgia MIOA Signed:

Position: Head of Acoustics

Date: 14/05/2014

Outline Acoustic Design Review

Burton and South Derbyshire UTC Burton upon Trent

HRS REFERENCE: 117828 AC 3v3

P/2014/00735Received 11/06/2014

Project: BSD UTC, Burton upon Trent

Department: Acoustics

Report Ref: HRS117828-AC-3v3 HRS Contact: Silvio Murgia

Page: 2 of 20 Direct Tel: 0114 228 3540

Contents

Page

Issue History.......................................................................................................................... 3

1. Introduction .................................................................................................................... 4

2. Standards and Guidelines ............................................................................................. 5

4. Internal Ambient Noise Levels ...................................................................................... 10

5. Sound Insulation ............................................................................................................ 11

6. Control of Reverberation ............................................................................................... 14

7. Mechanical Services Noise ........................................................................................... 16

8. Rain Noise ...................................................................................................................... 17

9. Acoustic Testing ............................................................................................................ 18

Appendix I – Glossary of Terms .......................................................................................... 19

Appendix II – BB93 Criteria Recommendations ................................................................. 21





Issue History

Version Issue Date Notes

HRS117828-AC-3v3

14/05/14 1

st Formal Issue





1. Introduction

1.1. HRS Services Ltd. (HRS) has been appointed by BAM Construction Ltd. (BAM) to provide acoustic

consultancy services for the proposed new Burton and South Derbyshire UTC (BSD UTC), Burton

upon Trent.

1.2. The proposed site is located on Waterloo Street, Burton upon Trent, and features an elevation

facing King Edward Place. The surrounding area is of mixed-used, comprising both commercial

and residential property.

1.3. The proposed scheme involves the construction of a new four-storey University Technical College,

providing education in vocational subjects for 14 – 19 year olds. The UTC building will be partially

formed from the conversion of the existing Burton Town Hall Annex building, with a new extension

to the existing building being built in the current location of the Town Hall car park.

1.4. The purpose of this report is to provide an overview of the acoustic design approach with reference

to Building Bulletin 93 ‘Acoustic Design of Schools’. The report will consider the acoustic impact of

the existing noise climate on the new teaching/learning spaces, as well as reviewing the internal

acoustic environment.

1.5. This document has been prepared for the sole use, benefit and information of BAM for the

purposes set out in the document or instructions commissioning the works. The liability of HRS in

respect of the information contained herein will not extend to any third party.

1.6. This report is limited to addressing the specific acoustic issues contained herein and is based

entirely on information and drawings provided by the project architect. It is recommended that

appropriate expert advice be sought on all the ramifications e.g. safety, fire, structural etc.

associated with any proposals contained herein.

1.7. Whilst every effort has been made to ensure that this report is easy to understand, it is technical in

nature; to assist the reader, a glossary of terminology is included in Appendix I.





2. Standards and Guidelines

Building Bulletin 93 ‘Acoustic Design of Schools’ (BB93)

2.1. Part E of Schedule 1 to the Building Regulations 2010 includes new ‘school’ buildings, within its

scope under Requirement E4 which states…

“Each room or other space in a school building shall be designed and constructed in such a way that it has

the acoustic conditions and the insulation against disturbance by noise appropriate to its intended use.”

2.2. Section 8 of Approved Document E guidance states that the normal way of satisfying Requirement

E4 for new school buildings is to meet the performance standards set out in Building Bulletin 93

‘Acoustic Design of Schools’ (BB93), as per the extract below:

2.3. Section 4 of the 1996 Education act defines a ‘school’ as ‘an educational institution which is

outside the further education sector and the higher education sector and is an institution for

providing primary education, secondary education, or both primary and secondary education’.

2.4. HRS’ understanding of the proposed BSD UTC accommodation is to provide a new academic

environment for 14-19 year olds with a strong focus on technical and practical education. As an

alternative to a more traditional school setting BSD UTC aims to encourage new ways of learning

and, with links to various local commercial/industrial employers, the design ethos of the building is

orientated more toward higher education and workplace environments.

2.5. The acoustic performance criteria given in this document are based on the recommendations given

in BB93. Considering the above, whilst BB93 provides the most relevant guidance for education

buildings, it may not be wholly appropriate for all spaces within BSD UTC and in these cases

alternative acoustic performance standards have been identified. It is advisable to confirm this

approach with the Building Control Body as an appropriate basis for design.





BREEAM 2011

2.6. HRS understands that BREEAM 2011 credits relating to acoustics are being targeted for the

project. The implications for acoustic design will depend on the precise credits that are being

targeted (all directly acoustics related BREEAM credits are non-mandatory).

Areas of Non-Compliance with BB93

2.7. This assessment has identified that, due to functional and operational considerations, there are

some areas where it may not be practical to meet the acoustic requirements contained within

BB93. HRS understands that application for approval to derogate the relevant BB93 requirement

will be made by BAM.

2.8. This approach is recognised in BB93 Section 1.2.1 ‘Alternative performance standards’ which

states:

‘In some circumstances alternative performance standards may be appropriate for specific areas within individual schools for particular educational, environmental or health and safety reasons.’

2.9. The relevant areas identified at the time of writing this report as not in compliance with BB93 are

highlighted in Table 1 below.

Table 1: Areas of non-compliance BB93 Section 1 criteria

AREA COMMENTS / ALTERNATIVE PERFORMANCE STANDARDS

Inter-connecting doors between

teaching / occupied spaces,

e.g. Engineering Workshop to

CNC / CNC into Computing &

Engineering Design / Hub Atrium

into enclosed classrooms

BB93 criteria for airborne sound insulation will not be achieved where acoustically-

sensitive rooms are interconnected by doors. Doorsets with increased sound insulation

specification, rated at minimum 35dB Rw within a separating partition rated at minimum

45dB Rw are proposed where doors interconnect teaching spaces. Where glazed screens

feature within partitions containing interconnecting doors it is proposed that these should

be rated at minimum 35dB Rw, i.e. no worse-performing than the interconnecting doors.

1st and 2

nd floor ‘Hub’ areas and

the Main Dining ‘Atrium’ /

Ground, 1st and 2

nd floor atrium

Hub areas

Open plan study areas shall not meet BB93 acoustic performance criterion for speech

intelligibility.

It is proposed that, in order to maximise speech intelligibility in open plan study areas,

localised reverberation control shall be used as far as practical.

Ground, 1st and 2

nd floor toilets

into Main Dining

2nd

floor Group Rooms / Lab02 /

Prep Room

2nd

floor Product Design / Rapid

These spaces are part of the same volume and therefore, if considered as separate

spaces, the BB93 criteria for airborne sound insulation of the Main Dining and Café areas

shall not be achieved.





AREA COMMENTS / ALTERNATIVE PERFORMANCE STANDARDS

Protoype

3rd

floor toilets into Café

Activity and Fitness Studio

BB93 criteria for mid-frequency reverberation time is likely to not be achieved due to the

volume of the spaces in conjunction with the hard-wearing, acoustically-reflective surface

finishes likely to be prevalent within the space. See Section 6.5 for further detail.

Serving hatch

BB93 criteria for airborne sound insulation may not be achieved between the Kitchen and

Dining Area due to the presence of a serving hatch shutter in the separating partition. The

proposed standard of sound insulation is for the shutter to be rated at a minimum 18dB

Rw.

Existing Building

Existing building constraints limit ability to meet BB93 acoustic performance

requirements. Hence, for all spaces, BB93 Section 1 acoustic performance criteria to be

used as guidance only

Main Dining and associated Hub

spaces

Indoor ambient noise levels – may not achieve BB93 indoor ambient noise level criteria

upper limits at all times

BB93 criteria for mid-frequency reverberation time is likely to not be achieved due to the

volume of the spaces in conjunction with the hard-wearing, acoustically-reflective surface

finishes likely to be prevalent within the space. See Section 6.6 for further detail.





3. Room Classification

3.1. The main internal rooms and spaces of the proposed building have been classified in accordance

with classifications given within BB93. Typical classifications of spaces within the building are

reproduced in Table 2, below.





Table 2: Proposed BB93 room classifications for a range of typical spaces

Room Name BB93 Room Classification Activity Noise

Noise Tolerance

Indoor Ambient Noise Level

Upper Limit, dB LAeq,30min

1

Mid-Frequency Reverberation Time, secs Tmf

Weighted Standardised Impact Sound

Pressure Level dB

L’nT(Tmf,max),w

Lecture Theatre Large Lecture Room Average Very Low 30 <1.0 ≤ 55

Product Design

Design and Technology: Electronics/control, textiles,

food, graphics, design/resource areas, ICT rooms, art

Average Medium 40 <0.8 ≤ 60

Performance Monitoring and

Biomedical

Science Laboratory Average Medium 40 <0.8 ≤ 60 Science Studio

Labs 01 / 02 / 03

Food Science

Creative Lab

Concept Lab

Tech Labs (CNC)

Resistant Materials / CADCAM Areas

High High 40 <0.8 ≤ 65 Process

Production

Rapid Prototype

Main Dining / Cafe

Dining High High 45 <1.0 ≤ 65

Medical Inspection

Medical Rooms Low Low 35 <0.8 ≤ 60

Study Hubs Open Plan Resource Areas Average Medium 40 <1.0 ≤ 60

Learning Base / Seminar

Secondary school: classrooms, general teaching areas, seminar

rooms, tutorial rooms Average Low 35 <0.8 ≤ 60

Interview / Boardroom

Interviewing rooms Low Low 35 <0.8 ≤ 60

Atrium / Circulation

Atria, circulation spaces used by students


Staff Offices / Employer / IT

Offices, medical rooms, staff rooms

2


Changing Coats and changing areas2 High High 45 <1.5 ≤ 65

Toilets / Accessible WC

Toilets2 Average High 50 <1.5 ≤ 65

Notes to Table 2:

1. The upper limit for the indoor ambient noise level may be increased by 5 dB when a fresh air supply rate of 8 l/s per

person is provided by natural ventilation, as described in BB101 ‘Ventilation of School Buildings’.

2. Examples of ‘ancillary’ spaces; BB93 criteria are guidance only, and non-mandatory.

3.2. Other ancillary spaces not included in the BB93 classifications include plant rooms and stores; these

spaces shall be considered on an individual basis to determine requirements for acoustic treatment.





4. Internal Ambient Noise Levels

4.1 An environmental noise survey was carried out at the proposed site by Mott MacDonald in January

2014 for the Education Funding Agency. HRS also carried out indicative measurements during a

site visit in April 2014

4.2 Details of the Mott MacDonald noise survey methodology and results have been provided within

Mott MacDonald report 310266_Rep01_revA.

4.3 Figures stated in the Mott MacDonald report and measurements taken by HRS indicate high

ambient noise levels on both King Edward Place and Waterloo Street, between 64-73 LAeq,30min. To

meet BB93 criteria for indoor ambient noise levels (IANL) it is proposed that a mechanical

ventilation strategy shall be used for the majority of new build teaching / study spaces with a view

to King Edward Pl. and Waterloo St.. This shall allow greater control of external noise intrusion

than an open window strategy, for example.

4.4 The external facades of noise-sensitive spaces on elevations with a view to King Edward Pl. and

Waterloo St., where appropriate, shall incorporate appropriate glazing to further mitigate road

traffic noise.

4.5 Based on the Mott MacDonald report and HRS’ noise levels measured at site, for noise-sensitive

spaces without a view to either King Edward Pl. or Waterloo St., a natural ventilation strategy could

potentially be utilised whilst allowing BB93 IANL limits to be met.

4.6 Where mechanical ventilation is being utilised, the plant shall be specified taking into consideration

BB93 IANL limits within noise-sensitive spaces.

4.7 For spaces in the existing building, an assisted natural ventilation strategy with noise attenuation is

generally proposed that shall incorporate attenuation of external road traffic noise.





5. Sound Insulation

Separating Walls between Teaching Spaces

5.1. Based on levels of activity noise and noise tolerance, Section 1 of Building Bulletin 93 sets out

required performance standards for airborne sound insulation between internal spaces, in terms of

DnT(Tmf,max),w, as shown in Table 4 below.

Table 4: Performance standards for airborne sound insulation between spaces –

minimum weighted BB93 standardized level difference, DnT(Tmf,max),w

Minimum DnT(Tmf,max),w(dB) Activity noise in source room (see table 2)

Low Average High Very high

No

ise

to

lera

nc

e i

n r

ece

ivin

g

roo

m

(se

e t

ab

le 2

)

High

30 35 45 55

Medium

35 40 50 55

Low

40 45 55 55

Very low

45 50 55 60

5.2. A sample of typical adjacencies and the BB93 airborne sound insulation criteria are identified in the

table below.

Table 5: Sound insulation requirements for sample of separating walls and floors

Source Room Receive Room BB93 Minimum Airborne Sound

Insulation Performance DnT(Tmf,max),W (dB)

Activity & Fitness Studio Lecture Theatre 55

Performance Monitoring & Biomedical

Process Production 50

Site Man. Seminar 45

Kitchen Seminar 55

Science Studio Learning Base 45

Lab Lab 40

Learning Base Seminar 45

Lab Boardroom 45

Staff Office Learning Base 45

Tech Lab (CNC) Product Design 50





5.3. Based on the identified criteria, room uses, adjacencies and room geometry, separating partition

requirements have been calculated for each location and rationalised into a set of standard partitions

and floor build-ups that are robust in design whilst maximising the sound insulation performance

likely to be achieved in-situ. Acoustic specification of separating partitions for sound insulation

requirements are provided within the HRS acoustic mark-ups accompanying this document.

5.4. BB93 sound insulation requirements for doors into teaching or study spaces have been identified.

Where for operational reasons doors are located directly between adjacent teaching or study

spaces, sound insulation performance requirements of doors have been increased to provide a level

of acoustic separation between spaces that is as high as reasonably practicable. In these situations

it will not be possible to achieve the level of sound insulation required by BB93. As such, in these

situations a derogation of BB93 requirements for airborne sound insulation between adjacent

teaching / study spaces to acknowledge the reduction in sound insulation has been sought (see

Table 1).

5.5. Where glazed screens are included within separating partitions, glazing shall be specified

appropriately to mitigate noise transmission between adjacent spaces. Dependent on confirmation of

room uses, a derogation of BB93 airborne sound insulation criteria may require agreement.

5.6. To meet BB93 impact sound insulation requirements either a resilient floor finish, e.g. carpet or

appropriate resilient vinyl or underlay, or floating floor build-up to areas on the 1st, 2

nd and 3

rd floors

where rooms below are noise sensitive shall be utilised.

5.7. The 150mm pre-cast concrete plank system with 75mm structural topping with appropriate junction

details and floor finish, etc shall normally be sufficient for airborne and impact sound insulation

performance to meet BB93 acoustic performance requirements up to 50dB DnT(Tmf,max),w and 55dB

L’nT,w.

5.8. The airborne sound insulation performance of the slab will be dependent on suitable flanking noise

control at the junction of the external wall and other junctions, service penetrations, etc. Suitable

junction detail treatment will need to be developed at the appropriate stage.





Corridor walls and doors

5.9. BB93 specifies a minimum weighted sound reduction index (Rw), as measured in a laboratory, for

the walls (including glazing) and the doors (including any vision panels) to corridors.

5.10. The aim is to prevent noise from activities in corridors and stairwells interfering with teaching or

learning activities. Providing good sound insulation between each room and a common corridor also

greatly reduces the risk of sound from a very noisy activity within a room escaping along the corridor,

and disturbing nearby spaces.

5.11. All new corridor walls (including glazing) and doors should conform to the performance requirements

as stated in Table 6 below.

Table 6: BB93 Minimum laboratory performance (Rw) of walls and doors to corridors and

stairwells

Walls (including glazing)

Doors

All spaces adjacent to corridors and stairwells (except music rooms) 40dB 30dB

5.12. A rebated 44mm thick solid core timber doorset (27 kgm-2

) should be capable of achieving 30dB Rw.

A rebated 54mm thick solid core timber doorset (29 kgm-2

) should be capable of achieving 35dB Rw.

To achieve this performance, compression or wipe seals shall be used around the door’s perimeter

along with a threshold seal beneath.

5.13. Where glazed vision panels are to be installed adjacent to the entrance doors into teaching spaces,

vision panels shall be specified as part of the doorset and are therefore provide the same minimum

sound insulation performance as the door.

5.14. At the time of writing, HRS understands that in the existing building, the Conservation Officer

requirements are to retain the existing doors and architectural features. As per the identified

limitations, BB93 acoustic performance criteria may not be achievable in these spaces.





6. Control of Reverberation

6.1. BB93 sets out target reverberation time criteria for different room types. The recommended

reverberation times in BB93 are quoted in terms of Tmf which is the arithmetic average of the

reverberation times in the 500Hz, 1kHz and 2kHz octave band centre frequencies. Mid-frequency

reverberation time criteria for the relevant room classifications are included in Table 2 of this report.

6.2. Areas of absorptive room finishes required to meet the mid-frequency reverberation time criteria will

be assessed using a range of acoustic tools as well as experience in both design and testing of a

wide range of school type projects.

6.3. Reverberation control shall be provided by use of a range of suitable acoustic treatments in each

space. Spaces that are carpeted shall typically require less additional acoustic treatment than those

that incorporate vinyl or other ‘hard’ type floor finishes.

6.4. Where rooms feature an exposed soffit or other non-absorptive surface such as solid plasterboard,

absorption shall typically be provided in the first instance using soffit-hung acoustic baffles or rafts,

with options for additional acoustic treatment to walls.

6.5. It is understood that activities more typical of a gymnasium are proposed to be taking place within

the ground floor ‘Activity and Fitness Studio’ space rather than more traditional teaching practices

upon which the BB93 requirements are based. As such, an increased mid-frequency reverberation

time can be considered as having minimal impact on the suitability of the space for its intended use.

It is proposed that a provision of hanging baffles or rafts will provide a reasonably practicable amount

of absorption, although this is not expected to enable BB93 mid-frequency reverberation times to be

achieved within this space.

6.6. Due to the large volume and open nature of the Main Dining / Atrium are, significant areas of

acoustically absorbent surface treatment would be required to achieve the specified BB93

reverberation time. With the limited surface area available and presence of acoustically reflective

surfaces (e.g. hard floor finish, etc), it is not practical to achieve the necessary coverage.

Reverberation time will be reduced by use of Class A soffit-hung absorption.





Corridors and entrance halls

6.7. For entrance halls, corridors and hallways BB93 recommends covering an area equal to or greater

than the floor area with a Class C absorber or better (αw ≥ 0.6, as defined in BS EN ISO

11654:1997).

6.8. Required areas of absorption within circulation spaces shall potentially be reduced accordingly if

absorbers of Class B or Class A are used.





7. Mechanical Services Noise

Internal Noise Control

7.1. Refer to Table 2 and Section 4 of this report for BB93 IANL upper limits within spaces.

External Noise Control

7.2. The Mott MacDonald report 310266_Rep01_revA identifies relevant plant noise limits at the worst-

affected, noise-sensitive premises for day and night, drawing on guidance provided within BS 4142:

1997.

7.3. Specific assessments of each plant area, based on the equipment type, sound power levels and

location, shall determine whether additional sound insulation measures are required to achieve

identified noise limits. Where necessary, measures shall be taken to reduce mechanical services

noise, such as provision of attenuators, acoustic barriers or screens. Such treatments will be defined

once the equipment details are known.





8. Rain Noise

8.1. Although rain noise is excluded from the definition of indoor ambient noise in section 1.1 of BB93,

the guidance states that that it is important that rain noise is considered in the roof design as it can

significantly increase the indoor ambient noise level. A BREEAM credit under Hea for suitable

control of rain noise is also available. The new building roof design shall be assessed for suitability

with regard to rain noise mitigation.





9. Acoustic Testing

9.1. BB93 recommends acoustic testing is carried out to identify the acoustic performance of completed

spaces. The recommended testing schedule is for 1 in 4 of teaching / study spaces to be tested.

9.2. For this project, it is proposed that a range of acoustic tests shall be carried out to the new build

elements of the development.

9.3. Proposed acoustic testing schedule in line with relevant acoustic testing standards identified in

BB93 as follows:

Airborne sound insulation testing of partitions – 6 no.

Airborne sound insulation testing of floors – 4 no.

Impact sound insulation testing of floors – 4 no.

Indoor ambient noise level testing - 6 no.

Mid-frequency reverberation time testing - 6 no.





Appendix I – Glossary of Terms

Noise Units

a) Sound Pressure Level and the decibel (dB)

A sound wave is a small fluctuation of atmospheric pressure. The human ear responds to these variations in

pressure, producing the sensation of hearing. The ear can detect a very wide range of pressure variations. In

order to cope with this wide range of pressure variations, a logarithmic scale is used to convert the values into

manageable numbers. Although it might seem unusual to use a logarithmic scale to measure a physical

phenomenon, it has been found that human hearing also responds to sound in an approximately logarithmic

fashion. The dB (decibel) is the logarithmic unit used to describe sound (or noise) levels. The usual range of

sound pressure levels is from 0 dB (threshold of hearing) to 120 dB (threshold of pain).

b) Frequency and hertz (Hz)

As well as the loudness of a sound, the frequency content of a sound is also very important. Frequency is a

measure of the rate of fluctuation of a sound wave. The unit used is cycles per second, or hertz (Hz).

Sometimes large frequency values are written as kilohertz (kHz), where 1 kHz = 1000 Hz.

Young people with normal hearing can hear frequencies in the range 20 Hz to 20,000 Hz. However, the upper

frequency limit gradually reduces as a person gets older.

Noise Indices

When a noise level is constant and does not fluctuate over time, it can be described adequately by measuring

the dB(A) level. However, when the noise level varies with time, the measured dB(A) level will vary as well. In

this case it is therefore not possible to represent the noise climate with a simple dB(A) value. In order to

describe noise where the level is continuously varying, a number of other indices, including statistical

parameters, are used. The indices used in this report are described below.

LAeq - This is the A-weighted 'equivalent continuous noise level' which is an average of the total sound energy

measured over a specified time period. In other words, LAeq is the level of a continuous noise which has the

same total (A-weighted) energy as the real fluctuating noise, measured over the same time period. It is

increasingly being used as the preferred parameter for all forms of environmental noise.

Tmf - The reverberation time of a space is a measure of the rate at which sound decays. It is defined as the time

taken for the sound pressure level to reduce by 60dB. BB93 specifies reverberation time in terms of the mid-

frequency reverberation time, Tmf, the arithmetic average of the reverberation times in the 500 Hz, 1 kHz and 2

kHz octave bands.





DnT(Tmf,max) - DnT is the difference in sound levels in dB between the source and receiving room, standardised to

a reference reverberation time, T0. When measuring sound insulation between dwellings T0 is usually taken as

0.5 seconds. However, T0 is specified in BB93 as the maximum value of Tmf, given in Table 1.5, and hence the

descriptor is written as DnT(Tmf,max).

Sound Reduction Index, R - This describes the sound transmitted through an element, such as a wall, door or

window. It is measured in a laboratory with suppressed flanking transmission.

L’nT(Tmf,max) - L’nT is the impact sound pressure level in the receiving room, standardised to a reference

reverberation time, T0. Again, T0 is specified as the maximum value of Tmf, given in Table 1.5, and hence the

descriptor is written as L’nT(Tmf,max).

Single number weighted values - all the measures of sound insulation described above will vary according to

frequency. They are typically measured in 1/3 octave bands between 100 Hz and 3.15 kHz, and reduced to a

single number quantity using the rating curves contained in BS EN ISO 717-1:1997 (for airborne sound

insulation) and BS EN ISO 717-2:1997 (for impact sound insulation).





Appendix II – BB93 Criteria Recommendations

HRS Services Ltd.The MaltingsBurton RoadSheffield S3 8BZ

T: 0114 272 3004F: 0114 272 3003E: [email protected]

Job Title

DrawingTitle

HRS ServicesBB93 recommendations mark-up

BSD UTC, Burton upon TrentHRS ref: 117828

Indoor ambient noise level upper limitdB LAeq,30min

Symbols shaded grey arenon-mandatory, guidance only

For horizontal sound transmission inthe direction of the arrow:

'aa' is the BB93 soundinsulation requirement DnT(Tmf,max),w

'bb' is the BB93 soundinsulation requirement DnT(Tmf,max),w


Between circulation spaces and other spacesused by pupils:

'aa' is the proposed value of Rw forpartition walls

'bb' is the BB93 sound insulationrequirement, Rw

aa/bb

30dB Rw

35dB Rw

For vertical sound transmission, through thefloor/ceiling above, in the direction of the arrow:

'aa' is the BB93 sound insulationrequirement DnT(Tmf,max),w

'bb' is the BB93 sound insulationrequirement DnT(Tmf,max),w

Symbols shaded grey are non-mandatory,guidance only

'aa' is the estimated weighted BB93standardized impact sound pressure level,L'nt(Tmf,max),w of floors above rooms

Symbols shaded grey are non-mandatory,guidance only

Maximum mid frequencyreverberation timeTmf (seconds)


<#.#

Version: 117828 2v3 Date: 14.05.14

<#.#

##

Notes:

Rw is the laboratory measured airborne soundinsulation performance of separating partitions

DnT(Tmf,max),w is the in-situ measured airborne soundinsulation performance of separating partitions

L'nt(Tmf,max),w is the in-situ measured impact soundinsulation performance of floors

aa

##

Doors (Including Glazing / Vision Panels

Partitions (including any glazing):

Solid line denotes mandatory requirement.Dashed line denotes guidance only.

Between circulation spaces and other spacesused by pupils

Dashed outline denotes guidance only.

aa/bb

aa/bb

aa/bb

aa/bb

aa/bb

aa/bb

aa

aa/bb

aa/bb

40 Rw (dB)

45 Rw (dB)

53 Rw (dB)

63 Rw (dB)

70 Rw (dB)

aa/bb

aa/bb

aa/bb

aa/bb

Burton & South Derbyshire UTCBurton upon Trent

BAM

HRS Services

BB93 Acoustic recommendations mark-up

117828 2v3

project originator zone level type number revrole

-GA Plans - Ground Floor

bba project ref

BAM ConstructionBurton & South Derbyshire UTC datedrawn checked drawing name

02001BBA A

suit

BSD P7

scale

13-183 - - - - -

Activity & Fitness Studio033Area: 161 m2

Staircase038Area: 32 m2

Staff029Area: 4 m2

Staff030Area: 5 m2

Changing028Area: 44 m2

Changing027Area: 44 m2

5.00 %

12

B B

H H

A A

C C

F F

D D

1,8461222,47015310,08015316,4001532,3931404,9901404,990420

468

7,99

712

25,

000

153

9,82

052

2

46.82

46.82

46.8246.82

46.42 46.42

46.42

46.42

46.82

46.82 46.8246.82

46.42

CloseOpening

2

Seating Area

Turnstiles / Swipe Card

Lock

ers

5 tie

r

Lockers 5 tier

Lockers 5 tierM

anifo

ld

Manifold Manifold

Manifold

3

13

Sick Bay007Area: 3 m2

Cl. St021Area: 5 m2

Acc. T022Area: 6 m2

St.031Area: 21 m2

Process Production001Area: 202 m2

Lobby006Area: 34 m2

Chair St.035Area: 10 m2

Plant036Area: 11 m2

Performance Monitoring & Biomedical002Area: 117 m2

Acc. T037Area: 4 m2

Toilets025Area: 36 m2

Lift020Area: 2 m2

1 to 1018Area: 6 m2

R019Area: 2 m2

1 to 1014Area: 6 m2

R015Area: 2 m2

Repro009Area: 12 m2

G. Office & Reception008Area: 37 m2

Circulation040Area: 139 m2

Acc. T005Area: 5 m2

Interview004Area: 8 m2

Hub042Area: 44 m2

Hub040Area: 34 m2

St.003Area: 7 m2

Servery016Area: 12 m2

E E

14

14

13

13

12

12

10

10

7

7

5

5

8

8

9

9

4

4

1

1

2

2

3

3

G G

11

11

11a

11a

6

6

2,00

012

21,

500

122

2,17

512

21,

656

122

300

5,00

015

31,

500

140

6,84

014

01,

200

468

46825,25716514,2421224,073122

High Benching

Lecture Theatre034Area: 75 m2

Main Dining026Area: 145 m2Circulation

Area: 78 m2

Kitchen024Area: 100 m2


Seminar013Area: 44 m2

Site Man & St012Area: 20 m2

Principal010Area: 17 m2

PA011Area: 10 m2

Hub041Area: 50 m2

Water Station032Area: 3 m2

St039Area: 2 m2


Z0 00 DR1:[email protected] S2

<0.835

<0.835

<1.040

<1.040<0.835

<0.835

<1.550

<1.545

<1.550

<1.040

<1.545 <1.545

50

<1.5

50

<0.840 <0.840

<1.540

<0.830

<1.040

50

<1.040

<0.835

Serving hatchRecommended minimum

sound reductionperformance 18dB Rw

<1.040

<1.040

<1.5 <1.5

50 <1.5

<0.835

50

<1.5

<1.040


-GA Plans - First Floor

bba project ref


02001BBA A

suit

BSD P8

scale

13-183 - - - - -

B B

H H

A A

C C

F F

D D

4683,97015310,08015316,40015312,92115310,605

44011,93512220,72912212,951122

440

6,80

012

23,

075

122

5,00

015

32,

500

122

3,17

84,

020

50.49

BoltedSafe

Lockers 5 tier

Lockers 5 tier


Acc. T127Area: 4 m2

Showcase Lab 02101Area: 86 m2

Learning Base107Area: 51 m2

Staff Cur. Office109Area: 42 m2

Lift116Area: 2 m2

Female T119Area: 20 m2

Male T118Area: 21 m2

Exams/Rec110Area: 12 m2

Acc. T114Area: 6 m2


Employer111Area: 31 m2

Cl. St113Area: 5 m2

Server121Area: 23 m2

Food Science122Area: 90 m2

Lab 01105Area: 90 m2

IT120Area: 6 m2

Radioactive St.102Area: 5 m2Riser

142Area: 2 m2

Riser144Area: 2 m2

Riser143Area: 2 m2

Riser140Area: 6 m2

Creative Lab104Area: 141 m2

Riser135Area: 2 m2

St.141Area: 5 m2

St.139Area: 4 m2

Riser136Area: 2 m2

St.123Area: 11 m2

St.124Area: 16 m2

St.137Area: 4 m2

St.134Area: 3 m2

Chair St.126Area: 4 m2

RArea: 1 m2

E E

14

14

13

13

12

12

10

10

7

7

5

5

8

8

9

9

4

4

1

1

2

2

3

3

G G

11

11

11a

11a

6

6

440

6,80

012

297

612

22,

100

5,00

015

39,

820

522

440

6,80

012

267

6122

300

2,10

05,

000

300

122

2,62

912

26,

800

522

Void over Dining

Raked LectureTheatre

Void over Hub

Void over Dining

Void overEntrance

Lobby

Void overActivity Studio


Science Studio106Area: 67 m2



RArea: 1 m2

Admin St.117Area: 4 m2

Hub131Area: 46 m2

Lecture Theatre125Area: 46 m2

Hub130Area: 22 m2

Boardroom103Area: 15 m2

Hub129Area: 12 m2

Water Station138Area: 1 m2

Hub130Area: 45 m2


<0.835

<1.040

<1.5

50

<1.5

50

<1.5

50

<1.5

50

<0.835

<0.835

<0.840<0.840 <0.840

<0.840

<0.840

<0.835

<1.040

<0.830

<1.040

<1.040

<0.835


-GA Plans - Second Floor

bba project ref


02001BBA A

suit

BSD P8

scale

13-183 - - - - -

Hub231Area: 62 m2

B B

H H

A A

C C

F F

D D

440

6,80

012

297

612

22,

100

5,00

015

39,

820

522

440

6,80

012

297

612

22,

100

5,00

030

012

24,

653

122

4,77

546

8

53.99

53.99

Slid

ing

scre

en /

serv

ery

Boo

ks 5

she

lves

Lockers 5 tier

Riser

Ope

ning

Ope

ning

Opening

Lockers 5 tier

Opening

Acc. T226Area: 4 m2


Acc. T214Area: 6 m2

Cl. St213Area: 5 m2

Concept Lab225Area: 79 m2

Showcase Lab 03201Area: 86 m2

Lift234Area: 2 m2

Lab 02204Area: 125 m2

Male T217Area: 21 m2

Female T218Area: 22 m2



RArea: 1 m2

RArea: 1 m2

Admin St.216Area: 4 m2

Hub232Area: 28 m2

IT Hub202Area: 5 m2

Riser242Area: 2 m2

Prep205Area: 33 m2

Lab 01206Area: 59 m2

Tech Lab (CNC)223Area: 69 m2

Tech Lab (CNC)224Area: 66 m2

St.241Area: 5 m2

Riser240Area: 6 m2

St.237Area: 4 m2

Riser235Area: 2 m2

Riser244Area: 4 m2

Riser245Area: 2 m2

Store / Prep220Area: 38 m2

Product Design222Area: 75 m2

Rapid Prototype221Area: 40 m2

Riser243Area: 2 m2

Group Room238Area: 7 m2

Water Station236Area: 1 m2St.

234Area: 3 m2

Group Room239Area: 7 m2

E E

14

14

13

13

12

12

10

10

7

7

5

5

8

8

9

9

4

4

1

1

2

2

3

3

G G

11

11

11a

11a

6

6

4983,9701538,3711537,0491537,4041537,7091228,59415310,4052004,859

4,428 298 122 8,327 122 4,204 122 7,182 122 3,000 122 3,000 122 7,182 122 11,935 440

Void over Dining

Void over Hub


Hub233Area: 46 m2


Staff Prof. Office209Area: 75 m2


IT Tech210Area: 12 m2

Science Studio207Area: 67 m2

Hub228Area: 12 m2

Boardroom203Area: 15 m2

Hub229Area: 17 m2



<0.840

<0.840

<1.040

<1.040

<0.840<0.840

<0.840

<1.5

50

<1.5

50

<1.5

50

<1.5

50

<0.835

<0.835

<0.835

<0.835 <0.840

<1.040<1.040

<0.840

<1.040

<0.840


-GA Plans - Third Floor

bba project ref


02001BBA A

suit

BSD P8

scale

13-183 - - - - -

B B

H H

A A

C C

F F

D D

200

5,817 1,845 3,329 4,024 600 1,200 600 4,024 600 2,897 6002,

000

600

3,55

060

01,

213

2,95

63,

550

5,14

560

02,

278

600

2,00

0

57.77

Lower Section ofRoof

Rooflight

Lower Section ofRoof

Rooflight

Rooflight

2m H

igh

Scr

eeni

ng

Rooflight

M&E Upstand M&E Upstand

M&E Upstand M&E UpstandM&E Upstand

Planting Pots to form barrier

Benching

Benching

Planting Pots to form barrier

M&E Upstand

RaisedPlanter

Ben

chin

g

Ben

chin

g

Rooflight

Full extent of rooflights, layout and detail to beagreed following daylight assessment

Light fittingfinal detail andlocation TBA

Light fittingfinal detail andlocation TBA

Fixed TableFinal number and

location TBA


location TBA


location TBA


location TBA


location TBA

Meeting306Area: 12 m2

Lift317Area: 2 m2

Cafe316Area: 65 m2



MI305Area: 12 m2


Acc. T313Area: 3 m2


RArea: 1 m2

RArea: 1 m2

SENco303Area: 21 m2

SEN Resources304Area: 11 m2

E E

14

14

13

13

12

12

10

10

7

7

5

5

8

8

9

9

4

4

1

1

2

2

3

3

G G

11

11

11a

11a

6

6

Science Studio301Area: 67 m2Learning Base

302Area: 50 m2

Cafe308Area: 32 m2



Servery310Area: 12 m2


<0.835

<0.835

<0.835

<0.835

<1.045

Serving hatchRecommended minimum soundreduction performance 18dB Rw

<1.040

<0.835

<1.045

<1.5

50

<1.5

50<1.5

50

<0.835

Documents

ˇ 5HFHLYHG 3 ˆ - East Staffordshire Application... · 2014. 6. 17. · Outline Acoustic Design Review Burton and South Derbyshire UTC Burton upon Trent REFERENCE: 117828 AC 3v3