DRIVING INNOVATIONS FOR SUSTAINABLE PUBLIC … 2016/Housing_Dept_ppt.pdf · DRIVING INNOVATIONS FOR SUSTAINABLE PUBLIC ... Cash flow simulation from 5D BIM model ... MMM Paving Blocks

2016/6/6

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DRIVING INNOVATIONS

FOR SUSTAINABLE PUBLIC

HOUSING DEVELOPMENTS

Ms. Ada Y.S. FUNG, JP

Deputy Director (Development and Construction)

Hong Kong Housing Authority

13 May 2016

HKQAA Symposium 2016

Strengthen Business Resilience with Innovative Perspectives

21. Introduction

What is “business

resilience”, “business

challenges” and

“innovative perspectives”

for public housing

development in Hong

Kong?

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To meet present social, economic and environmental needs but NOT at the

expense of future generations

2. DRIVERS

Public Housing Development in Hong Kong

Business Resilience

42. DRIVERS

• High Demand for Public Housing

• Long waiting list with target of average

waiting time of around 3 years.

• Tight financial, limited land resources

and multi-faceted challenges in high

rise high density compact city.

Vs

About 30% of Hong Kong’s

people are residing in public

rental housing

Business Challenges

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Innovation Perspectives

52. DRIVERS

Public Housing Development in Hong Kong

Safety

Green

Health

To help low-income families with housing need gain access to affordable housing

• To provide affordable quality housing and other related services

To ensure cost-effective and rational use of public resources

To maintain a competent, dedicated and performance-oriented team

4Cs Core Values

Caring

Customer-focused

Creative

Committed

2. DRIVERS 6

Our Vision, Mission & Core Values Core Values

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Find Innovative Solutions and Adopt Sustainable Design for

Social, Economic and Environmental Needs

2. DRIVERS

Balance the development potential

Integrate green landscape

planningVitalize local economy

Economic Environmental

Encourage outdoor family

activities

Enhance environmental

awareness

Enhance health & exercise

awareness for all ages

Promote renewable energy

Minimize construction waste

Enhance accessibility &

linkage

Enhance environmental

comfort by considering

microclimate in planning

Minimize environmental

impact to the

neighborhood

Social

Optimize use of social

welfare and communal

facilities

Effective use of resources

Enhance social interaction

Strengthen community

Identity

Research & Development

• We apply R&D Strategy with the aim to facilitate

Sustainable Public Housing Development

• We have a Current Stock of 245 items in 9 categories and

we need to collaborate with stakeholders in the industry.

DCD ACADEMY

3. Research & Development

Development

R&D is everybody’s business!

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Research &

Development

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Sustainable Development

Assuring Safety,

Health Living & Human Comfort

Reducing Materials & Energy

Consumption

Improving Productivity

& Construction

Safety

Adopting Sustainable Procurement Approach

4. Innovations

104.1- Assuring Safety, Health Living & Human Comfort


Assuring Safety,



Consumption


& Construction

Safety


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Passive design Assisted by Micro-Climate Studies

Since 2004, we have been

applying the Micro-climate

Studies in all public housing

projects during the early

planning and design stages,

to create quality living

environment and improve

the environmental

performance of the projects.


Modular Flat

Non-Standard

Block A Wing of Block

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1/2-Person

3/4-Person

2/3-Person

4/5-Person

Modular Flat Design

Quality Housing Initiatives -

� Better Healthy Living, Safety

and Easy Maintenance

� Focusing on Customer Needs

� Reinforcing Universal Design


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W-trap system

� Collaborated with City University of Hong

Kong to study the application of common

traps

� Waste water from wash basin/shower 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

� Seek BD’s approval on the use of Common

W-trap System in SSF flats


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Twin Roof Water Tanks

� Uninterrupted water

supply within regular

cleaning and

maintenance operation


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154.2 - Reducing Materials and Energy Consumption


Assuring Safety,



Consumption


& Construction

Safety


Cash flow simulation from 5D BIM model

Feasibility Studies Feasibility Studies Scheme DesignScheme Design Detailed DesignDetailed Design TenderTenderFacility

Management

Facility

ManagementConstructionConstruction

Project Development Life Cycle

HKHA BIM Standards and User

Guide are available at -

Building Information Modeling (BIM)


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Provision of Ventilation

bay at G/F and 1/F

Passive design Assisted by Micro-Climate Studies

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Through Improving ventilation, energy consumption such as air-conditioning, can be

reduced


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Modular Flat Design

� Mass Production in Precast yard

� Consistency and Economy of Scale

� More efficient energy consumption in construction

1/2-Person 3/4-Person2/3-Person 4/5-Person


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Noise - Mitigation Building Modelling

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Sai Chuen Road PRH

• Balcony Structure

• Reduce 2.5 dB(A) on lower floors to 6.4

dB(A) on higher levels

San Po Kong PRH

• Modified double-glazed window with offset

openings to allow natural ventilation

• Reduce 8 dB(A)


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Total CO2

Emission

I : Material Consumed

During Construction

II : Materials

for Structure

III : Communal

BS Installations

IV : Renewable

Energy

V : Tree

VI : Demolition

I + II + III – IV – V + VI = Total CO2 Emission

• To gauge the whole life carbon

emission of new public housing

developments for a building life of

100 years

• To compare with the benchmark

block and estate to gauge the

overall life cycle performance in

terms of carbon emission

Reduce Carbon Emission Estimation (CEE)

Aspect Embracing

I : Materials Consumed

During Construction

�Timber formwork for substructure &

superstructure

�Steel formwork for superstructure

II : Materials for Building

Structure

�Concrete for substructure & superstructure

�Steel for substructure & superstructure

III : Communal BS

Installations

Lighting, Lift, Water Supply, Security, CABD,

A/C & Ventilation, Fire Services, Electrical

Distribution System

IV : Renewable Energy Solar and/or wind powered system

V : Trees Planting Trees taller than 5m

VI : Demolition �Dismantling of building

�Transportation of building debris from site

to landfill


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� EnMS ISO50001: In 2011, developed HA’s Energy

Management System (EnMS) by ISO 50001

� Photovoltaic (PV) System: generating about 2.5% energy

for the communal areas.

� Two-Level Lighting System : Developed in 2008, meet the

high illumination standard and save energy

� Gearless Permanent Magnet Synchronous (PMS) Lift

Motor and Variable voltage variable frequency (VVVF):

reduce energy and lift driving system, optimization of lift

provision

Improving Energy Efficiency


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Precast elements for HA buildings

Mass Production, more efficient in energy consumption

Innovative Prefabrication Technology

Precast

Facades

Semi-precast

Slab

Precast

Staircase

Volumetric

precast

bathroom

(VPB)

Precast

Partitions

Precast

Structural

WallsPrecast Tie

Beams

Semi-

precast Wall

(Lostform)


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Backfilling and Compaction with

Cement-Stabilization Marine Mud

New Treatment of Marine Mud

By treating the marine mud with

appropriate proportion of cement

and sand, we can re-use it for in-

situ backfilling thereby alleviating

the pressure on landfill sites.

MMM Roof Tiles

MMM Planter KerbMMM Paving Blocks

MMM Protection Block


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Twin Roof Water Tanks

� Direct discharge of

residual waste water to

waste stacks

� Enhanced structural

design of water tanks and

roof slab

� Effective use of materials

Water Inlet

Pipe

Water Outlet Pipe for User

Washout

Pipe

Washout

Pipe

Tank B

Tank A

How It Works


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254.3 - Improving Productivity & Construction Safety


Assuring Safety,



Consumption


& Construction

Safety


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Modular Flat Design

Quality Housing Initiatives -

� Enhancing Buildability,

Productivity, Quality and

Safety

� Reinforcing Universal

Design

Modular flat design to

form building wings and

block design


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Sustainable Precast Concrete technology

� Alleviate current labour shortage problem

� Produces 30% less C&D wastes than

private practice

� Better waterproofing quality

� Speed of construction and economy of

scale

Innovative Prefabrication Technology

New Applications

� Precast staircore

� Precast liftcore

� Precast roof water tank


3.3.2 Sustainable Treatment of Marine

Mud

• Turning the waste threat (marine mud) of the

industry into green opportunity that help to

minimize environmental burden of waste and

handling cost

• Saving material used as a whole as importing

paving blocks for the project is no longer required

Paver Blocks

Planter Kerbs

Roof Insulation TilesWall Blocks

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� Wall blocks

� Paver blocks

� Planter kerbs

� Roof insulation tiles

New Treatment of Marine Mud


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Radio Frequency Identification (RFID)

Monitoring the disposal of C&D Materials

Concrete Cube with RFID TagTesting Automation

RFID Tag stuck inside wind-screenRFID Reader

RFID Tag installed inside the facade

� Unique Identification

� Improve Traceability

� Enhance Data Management

� Real time Monitoring

� Minimize human errors

� Streamlining the Work Flow

� Enhance Productivity


305. Adopting Sustainable Procurement Approach


Assuring Safety,



Consumption


& Construction

Safety


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Conventional Tender (Two Envelope System)

Technical Score Price Score+

HA award contract to tender with highest combined score

HD Assessment

Envelope 1

Technical

Envelope 2

Price

Submitted by Tenderers to meet HA’s requirements

Integrated Procurement Tender to procure Innovations

Three Envelope System

Technical Score Price Score+HA award contract to tender with highest combined score

HDAssessment

Envelope 1

Technical

Envelope 3

Price

Submitted by Tenderers to meet HA’s requirements

Envelope 2

Innovations

Over-the –requirementsOptions offered by tenderers for HA’s selection

Integrated Procurement Approach

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HA has first implemented IPA at Kai Tak Site 1B PRH project while the second project is

Anderson Road Phase A & B PRH development.


Quality Management System

+ Specific Technical Requirements for Product

+ Product Testing

What is Product Certification?

It’s an upstream control of supply chain

• Product Certification is the process whereby a

product is certified to have achieved prescribed

standards and quality requirements, through

regular factory surveillance and periodic

random sampling and testing of products by

third party of accredited certification body.

Product Certificate


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Its Function in Quality

Assurance Regime

Product Certificate


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Tested in Hong Kong, Certified in

Hong Kong

Upstream

Quality Control

Product Certificate

After the manufacturer’s product has been certified, the product quality

will be overseen by supply chain management through regular factory

surveillance, periodic sampling and testing of products by third party of

accredited certification body.

Product Certificate


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Panel Wall Partition

(fire rated)Cement Product

(Arch. Use)

Tile Adhesives

Ceramic Tiles

Close-coupled Water

Closet Suites Repair

Mortars

uPVC Drainage

Pipes & Fittings

Fabric

Reinforcement

Aluminum Windows 4-Bar

Hinges Assembly

Timber Doors

Product Certificate


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Product Certificate

Difficulties Encountered


• Lack of timely updating by scheme owners

Professional Institutes

• Insufficient suppliers / testing for maintaining a profitable business

Accredited Certification

Bodies

• Lack of incentives in seeking product certification

Manufacturers

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Way Forward

We Need Support from

the Industry !

To join hands for a wider

implementation of product

certification for the benefits of

the industry and society.


� To increase the popularity of Product Certifications

on Construction Materials.

38Regulator

Manufacturer

Supplier

Sub-Contractor

Consultant

Academia

Contractor

Laboratory

New

Technology

5-Stages:

1. Exploration

2. Piloting

3. Monitoring

4. Reviewing

5. Mass Application


� Continuous Collaboration with Stakeholders.

Challenges and Way Forward

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Thank You!

Let’s join hands to seek

opportunity for Enhancement.

R&D

Documents

DRIVING INNOVATIONS FOR SUSTAINABLE PUBLIC … 2016/Housing_Dept_ppt.pdf · DRIVING INNOVATIONS FOR SUSTAINABLE PUBLIC ... Cash flow simulation from 5D BIM model ... MMM Paving Blocks