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Scaffolding |
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Climbing
Scaffolding System |
Metal-Bamboo Matrix System
Scaffold (MBMSS) |
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Climbing
Scaffolding System |
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(Source
: Wui Fai Holdings Ltd) |
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The
Climbing Scaffold is a computerized self-climbing system scaffold for
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construction of high-rise buildings. Its main components include a
computerized control system, an anti-tiling and fall arrest system, an
electric chain block, a multi-functional steel scaffolding system. |
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Computerized control system
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Function includes control of partial or full lifting upward or downward. |
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Overloading warning system with alarm to minimize risks. |
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Easily adjustable height of the lift. |
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Double guide rails with anti-tilting and fall-arrest system
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Keeps the
climbing scaffolding stable when lifting and lowering. |
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Equipped
with a fall-arrest system to enhance safety. |
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Electric chain block
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Equipped
with an anti-skid system. |
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High
strength chain support with a capacity of over 15MT. |
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Multi-functional steel scaffolding
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Ease of
assembly for different heights, floors and types of structure. |
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Advantages of Climbing Scaffolding System |
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Ease of construction
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Fast
concreting cycle |
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Suits
different heights and building shapes (curve, corner, balcony shapes,
etc.),
and slopes. |
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Economical
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Only
require one time installation and can be used repeatedly |
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Shorten
construction time. |
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Reduces
60% of material used when compared with traditional scaffoldings. |
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Reduces
costs. |
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Safety
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Built-in
safety systems ensure safe working environment (warning system for
overloading,
anti-tilting and fall-arrest system, etc.). |
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Ease of operation
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Require
simple assembly and setting up. |
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Ease
of lifting upward and downward. |
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Reusable
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Parts
are standardized and reusable. |
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Climbing Scaffolding Procedure |
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After
installation of the system, the climbing scaffolding moves upward. After
completing the 1st climbing cycle, the shifting of the
supporting device to the next cycle can be executed (refer to figures). |
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(refer to
figure) |
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Connection to Permanent Structure |
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(refer to
figure) |
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Mechanism of Fall-arrest System |
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(refer
to figure) |
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Comparison Between Bamboo and Climbing
Scaffolding |
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Examples of Application in Hong Kong |
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Proposed
Senior Citizen Residence Area 44, TKOTL 68, Tseung Kwan O. |
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Ocean
Shores Phase 3, Tower 16 & 17 at TKOTL 55, Tseung Kwan O. |
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Sources |
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Tak
Hing Construction |
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Web site :
http://www.takhing.com |
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Metal-Bamboo Matrix System Scaffold
(MBMSS)
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In Hong Kong,
bamboo scaffolding has been the mainstream in the past. However, due
to the poor and inconsistent quality of bamboo itself, reports of
bamboo scaffolding related accidents are increasing. A vendor,
therefore, has designed a new scaffolding system – the
‘Metal-Bamboo Matrix system Scaffold’ (MBMSS). |
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The principal
of MBMSS is to combine the good characteristics of metal scaffolding
and bamboo scaffolding. It comprises steel pipes (60%) and bamboo
poles (40%). The steel pipes are used as main poles and ledgers for
supporting the loading, and provides more stable, secure and
reliable scaffolding than pure bamboo scaffolding. The bamboo poles
in MBMSS reduce the total weight of scaffolding and increase its
flexibility. MBMSS enables flexibility and adaptability to the
various miscellaneous and different requirements which occur in
practice, providing a higher productivity and efficiency than metal
system scaffolding. |
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Metal-Bamboo
Matrix System Scaffold is composed of two layers as
for traditional metal or bamboo scaffolding. For the outer layer,
metal tubes are used as the main posts and main ledgers while bamboo
is used as guardrail and fencing. For the other members, bamboo is
used to minimize the loading.
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Typical diagram of
a standard Metal-Bamboo Matrix System Scaffold
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Together with
other components, such as catwalks, toeboards and staircases, MBMSS
provides a stable and safe working environment and access for work.
The catwalks are made of aluminum while the toeboards are made of
plastic. These materials can be reused and help to save timber
waste.
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Comparison of MBMSS
with Traditional Steel Scaffolding and Bamboo Scaffolding
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MBMSS is about 15%
more expensive than traditional bamboo
scaffolding. The following table compares MBMSS with
traditional steel scaffolding and traditional bamboo scaffolding.
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Traditional
Steel Scaffolding |
MBMSS |
Traditional
Bamboo Scaffolding |
| Catwalk |
yes |
yes |
no |
| Toeboard |
yes |
yes |
no |
| Stair
access |
yes |
yes |
no |
| High
reliability |
yes |
yes |
no |
| Flexibility |
no |
yes |
yes |
| Light
weight |
no |
yes |
yes |
| High
productivity |
no |
yes |
yes |
| Minimum
of costs |
no |
yes |
yes |
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Example
Application |
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