Architectural Works 20171212 - Housing Authority

Architectural WorksArchitectural Works

Mr. YIM Yu-chau, Stephen

Chief Architect / Development and Standard

Mr. YIM Yu-chau, Stephen

Chief Architect / Development and Standard 1

R&D

� Micro-climate studies

� Modular Flat Design

� Universal Design

� W-trap

� Twin Water Tank

� Acoustic Balcony

� Zero Irrigation System

� Waste Management

� BEAM PLUS / CGBL Accreditation

� Risk Assessment / Treatment for 2300 building materials

� Green Delight in Estates

� Resident Survey

2

R&D

R&D Forum 2017 cum Networking Reception

Micro-climate studies

R&D

4

R&D


Micro

-clima

te S

tud

ies

• Wind Environment & Natural Ventilation

• Sun shading & Natural lighting

• Solar Heat Gain

• Pollutant Dispersion

Micro-climate Studies for all new building projects since 2004

Passive Design for Healthy Living :

R&D

Modular Flat Design

6

R&D


Functional & Cost Effective Design

(Quality Housing Initiatives)

1 Enhanced Buildability, Consistency and Economy of Scale

2 Better Healthy Living, Safety and Easy Maintenance

3 Focus on Customer Needs & continuous enhancement

4 Reinforcing Universal Design

4 Types of Modular Flat Design

developed in 2008 with reference to the allocation standard

Since 2000, due to limited availability of land resources, the topography, size and

configuration of housing sites, we change from Standard Block Design to Site

Specific Design with Modular Flat Design.

Mo

du

lar F

lat D

esig

n

R&D

Universal Design

8

R&D


Universal Design Universal Design Universal Design Universal Design 通用設計通用設計通用設計通用設計 since 2000since 2000since 2000since 2000

Barrier Free Access

(Inside Flat)

Widen door width –

800mm (flat entrance)

750mm (kitchen and bathroom)

• Power socket at 1m

from ground

• Lever or D-type door

handle

• Large lighting switch and

door bell

• Appropriate height for lighting switch, door bell

and power socket

• Lever type sink mixer

• Leveled entrance

Un

iversa

l De

sign

R&D

W-trap

10

R&D


Fight Pandemic Disease : Common W-trap System• Since the SARS outbreak, we pioneered the use of W-trap

• Waste water from wash basin/shower now directed to

replenish the common W-trap connected to the floor drain

• Avoid drying up of water seal to prevent the spread of foul

air, germs and epidemic disease between floors

• Ensure healthy living

Healthy Living

W-Tra

p

R&D

Twin Water Tank

12

R&D


Saving Water Twin Tank System

Provide uninterrupted watersupply to tenants at all times

• First completed project is Shatin Shek

Mun Estate in 2009; since then with

full application in all housing projects

• Enables water tank and roof slab to

be more Durable and Maintainable

• Reduces water wastage by about

5,300m³ per annum

Water Inlet Pipe

Water Outlet Pipe for User

Washout

Pipe

Washout

Pipe

Tank B

Tank A

Twin

Wa

ter Ta

nk

R&D

Acoustic Balcony

14

R&D


Sliding Screen

to mitigate noise

Noise attenuation ~2 to 6 dB(A)

Limitation Only for Wing Cheong Estate(Site specific)

Better Noise Attenuation~6 to 10dB(A)*

Better Ventilation Sufficient air flow.

User-friendly Application Prescriptive approach for window calculation.

Noise attenuation max. 8 dB(A)

Limitation Site having appropriate wind environment to secure min. 1.5 air change/hour

Acoustic Panel

SlidingGrille

Inclined Panel

Acoustic WindowAcoustic WindowAcoustic WindowAcoustic Window(San Po Kong Public

Housing Development)

1111stststst Generation Generation Generation Generation Acoustic BalconyAcoustic BalconyAcoustic BalconyAcoustic Balcony(Wing Cheong Estate)

2222ndndndnd Generation Generation Generation Generation Acoustic BalconyAcoustic BalconyAcoustic BalconyAcoustic Balcony

(Full scale mock-up at a vacant school at Yue Wan Estate)

2nd Generation Acoustic Balcony Design Concept

Air path

Remark* - The final figures are subject to EPD’s agreement. Green Building Award 2016

Aco

ustic B

alco

ny

R&D

ZERO IRRIGATION SYSTEM

16

R&D


ZERO IRRIGATION SYSTEM (ZIS)

The Hong Kong Housing Authority (HA) has

obtained the Merit Award for its "Zero

Irrigation System" (ZIS) under the research

category of Hong Kong Institute of Landscape

Architects (HKILA) Design Awards 2014,

affirming its commitment to exploring

greening technology.

Merit Award of HKILA

Design Awards 2014

Objectives of ZIS

• To minimize the water consumption for greening

requirements.

• To provide a sustainable urban drainage system.

• The system comprises a

wicking bed mechanism, a

self-sustained and passive

design to deliver water to the

vegetation and to minimize

topsoil evaporation through

capillary action.

Water retention cellWaterproofing layer

Wicking media – river

sand

Zero Irrig

atio

n system

R&D

Waste Management

18

R&D


• Save over 39,000 tonnes of timber per year

• Save over 2,000,000 m2 of plastering per 10,000 flats

• We score full marks in Ma3 of BEAM Plus with over 40% of listed prefabricated building elements has been off-site

Benchmarking our sustainability targets, HA is –

(a) building 40% less costly in comparison with similar buildings in the private sector of Hong Kong;

(b) generating 30% less construction waste in our construction process; and

(c) having 75% lower accident rates than the norm in Hong Kong . . . .

Wa

ste M

an

ag

em

en

t

R&D

BEAM PLUS / CGBL Accreditation

20

R&D


Participation in HK BEAM / BEAM plus / CGBL

HK-BEAM 3/99 HK-BEAM 4/04 BEAM PLUS

1999 2004 2012

Kwai Luen Road

Tung Tau Ph.9

Sha Tin area 14B Ph.1

Fanling Area 36 Ph.3

Eastern Harbour Crossing Site (EHC) Ph.4

Lower Ngau Tau Kok Ph.1 & 7

Kai Tak Site 1B

Kai Tak Site 1A

Lam Tin Ph.7 & 8

Domain and EHC Ph.6

Upper Ngau Tau Kok Ph.2 & 3 Lower Ngau Tau KokPh.1A, 1B & 2

Shek Kip Mei Ph.5

Shek Kip Mei Ph.2

Old Shui Chuen O

(HOS, Project aborted)

CGBL

Anderson Road Site A & B

San Po Kong Flatted Factory

Ex-Au Tau

Tung Chung Area 56

Conversion of Chai Wan Factory Estate

Ex-Yuen Long

Upper Ngau Tau Kok Ph.2 & 3

Ex-Au Tau

Tung Chung Area 56

Ex-Yuen Long

Anderson Road Site A & B

San Po Kong FlattedFactory

Ex-Kwai Chung

Wah Ha Estate

Ching Hung Road

Shatin 4C Mei Mun Lane

Shatin 4D Pik Tin Street

EX Tai Wo Hau

Tuen Mun 52 Site 2 Ph 1&2

Chai Wan Lin Shing Road

Etc……

Subsidised Sale Flats

Development at Fat

Tseung Street West

EA

M P

LUS

/ CG

BL A

ccred

itatio

n

R&D

Risk Assessment / Treatment for 2300 building materials

22

R&D


Purpose Manage the risk on contractors using materials deviated from the Specifications

Scope of AssessmentHKHA Specification Library 2014 EditionSpecification clauses (.M) on building & engineering materials used in

Architectural 1100+ Civil Engineering 200+

Building Services 600+ Geotechnical Engineering 60+

Structural 250+ Soft Landscaping 100+

TOTAL 2300+2300+2300+2300+

Methodology follows

ISO 31000 : Risk Management – Principles and

Guidelines(acknowledged by HKQAA’s gap assessment)

Risk Management FrameworkRisk

Asse

ssme

nt / Tre

atm

en

t for 2

30

0 b

uild

ing

ma

teria

ls

R&D

Green Delight in Estates

24

R&D


� Since 2005, partnered with green groups for the GDE programme.

� Organised estate-wide campaigns for all PRH estates, and in-depth

educational and promotional programmes for about 30 selected PRH

estates each year which focused on special themes and activities.

� Green Living Carnivals, Eco-workshops, Organic Farming Days, etc.

24

Green Delight in Estates (GDE)

GDE Ph11 Launching

Ceremony on

29.11.2017

Gre

en

De

ligh

t in E

state

s

R&D

Resident Survey

26

R&D


High Customer satisfaction index >90%

in last 5 years

Re

side

nt S

urve

y

Thank you !

27

R&D

Architectural Works 20171212 - Housing Authority

Documents

Transcript of Architectural Works 20171212 - Housing Authority