News & Events - Institution of Engineers Singapore
News & Events - Institution of Engineers Singapore
News & Events - Institution of Engineers Singapore
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First Liebherr LTR 1100 crawler crane<br />
delivered in Hong Kong<br />
Products & Services<br />
Hong Kong’s first Liebherr LTR 1100<br />
crawler crane has been delivered to rental<br />
specialist Chim Kee for its first application<br />
on a government housing project in Hung<br />
Hom.<br />
In its first rental, the crane has been<br />
specially down-rated for a 50 t maximum<br />
lift at the boom length <strong>of</strong> 54 m, in order<br />
to meet the loadings <strong>of</strong> a steel platform,<br />
erected over the excavated 10 m deep<br />
basement <strong>of</strong> the project.<br />
The Liebherr crawler crane is being<br />
used to lift and place steel girders and 40<br />
mm dia rebar at the basement levels <strong>of</strong> the<br />
project’s 30-storey twin-towers.<br />
The main contractor for the project,<br />
Shun Tak Yee Fai Joint Venture, started<br />
work on the project in October last year,<br />
under a 30 month contract.<br />
With a 40 m x 90 m frontage, the<br />
project will include a four-storey retail<br />
and recreation podium above the two<br />
basement levels. Two 30-storey towers<br />
will rise from the podium.<br />
With foundations completed by<br />
Gammon in an earlier contract, the joint<br />
venture contractor excavated more than<br />
36,000 m 3 to clear the basement area.<br />
By opting to install the steel deck<br />
over approximately 75% <strong>of</strong> the site,<br />
the contractor has been able to speed<br />
erection <strong>of</strong> the basement’s steel girders<br />
and concrete deliveries. It also allows<br />
temporary parking for delivery trucks,<br />
preventing congestion in the busy narrow<br />
roads around the site.<br />
The LTR 1100 is proving to be ideal<br />
for the Hung Hom project because <strong>of</strong> its<br />
small footprint and mobility.<br />
The telescopic crane provides a high<br />
lift capacity for its 50 m boom and <strong>of</strong>fers<br />
a maximum lifting capacity <strong>of</strong> 100 t at<br />
2.5 m.<br />
In ordering the new crane, Chim Kee<br />
also incorporated a 7 m folding jib and<br />
19 m boom extension, to <strong>of</strong>fer a variety<br />
<strong>of</strong> configurations including a maximum<br />
extended 78 m boom.<br />
Further, the crane’s advanced control<br />
system provides smooth motion and<br />
precise lifting.<br />
Chim Kee’s rental fleet features 11<br />
Liebherr crawler cranes. The company<br />
was formed in 1962 as a small crane<br />
rental company and contractor. Growth<br />
continued throughout the 1970s, with<br />
Chim Kee introducing a fleet <strong>of</strong> trucks<br />
for heavy transportation and heavy lift<br />
contracting.<br />
By the early 1990s, the company<br />
ceased operating its contracting business,<br />
concentrating on rentals, particularly<br />
throughout construction <strong>of</strong> Chek Lap<br />
Kok International Airport, in which<br />
area it enjoyed significant growth with<br />
piling rigs, drives, jacking cranes, and<br />
transportation.<br />
Today, as a heavy lift contractor,<br />
Chim Kee has successfully participated<br />
in several projects such as Container Port<br />
Number 9 and Stonecutters Bridge, with<br />
heavy lifts up to 400 t.<br />
The new LTR 1100 is suitable for<br />
Hong Kong’s congested sites and <strong>of</strong>fers<br />
fast erection. It combines the advantages<br />
<strong>of</strong> crawler and telescopic mobile cranes.<br />
The LTR 1100’s ability to ‘pick and carry’<br />
loads, eliminates the need for outriggers.<br />
The Liebherr LTR 1100 crawler crane has been specially down-rated for a 50 t maximum lift at the boom length <strong>of</strong> 54 m, in order to meet the loadings <strong>of</strong><br />
a steel platform, erected over the excavated 10 m deep basement <strong>of</strong> the project.<br />
THE SINGAPORE ENGINEER Jun 2010 · 35