INNOVATION IN ROAD AND BRIDGE
Arup
Stonecutters Bridge
Tsing Yi and Cheung Sha Wan, China
When completed in 2009, Stonecutters Bridge will provide service to and from
Hong Kong’s International Airport, alleviate congestion on the existing road
network, and provide enhanced links to the container terminals. A span of
more than 1 kilometer was required to provide unobstructed shipping access
under the bridge, making Stonecutters Bridge the world’s second longest
cable-stayed structure.
Because this pushed the limits of existing cable-stayed bridge technology, the
project required extensive design studies. The bridge also had to withstand
strong winds through all stages of construction. Sophisticated computational
methods as well as numerous wind tunnel tests were required to fully
understand the behavior and effects of the wind loading.
A cable-stayed bridge of this magnitude requires a thorough understanding of
the structure’s behavior in all conditions. This was gained through extensive
monitoring, model testing, and analysis using Bentley RM Bridge. The new
erection control module in Bentley RM Bridge was extensively used to allow
for accurate nonlinear analysis of the large deformations that can occur during
construction of relatively flexible structures.
FinALiSt
ALSO NOMINATED IN SPECIAL CATEGORY: SUSTAINING OUR SOCIETY
Scott Wilson Kirkpatrick India Pvt. Ltd
Feasibility and DPR for 4 Lanes of National Highway – 1A from Jammu to Udhampur
Jammu and Udhampur, India
improvement of the Jammu-to-udhampur section of national High way 1A
will directly impact social and economic development in this northern region
of India. As the only road connecting the two capital cities of Jammu and
Kashmir, it serves as a vital link for all sectors of the population. The challenge
was to develop design parameters and carry out a detailed engineering design
to double the existing lanes from two to four through mountainous terrain.
at certain locations. By importing the topographical survey data through
MicroStation into the Google Map environment, alignment options for these
stretches could be finalized effectively.
Bentley MXROAD provided dynamic accessibility to the survey data and
eliminated errors. This process, which used to take seven to 10 days, could
be delivered in one to two days. The difficult terrain conditions of the project
corridor hindered decisions for realignments and new alignment options
Specific triangulation features of Bentley MXROAD, such as the boundary
and trimming option, created an authentic terrain model. Contours generated
at requisite intervals depicted accurate topographical conditions, which
facilitated decision making for bridge and tunnel options. Automation of
the design process resulted in substantial man-hour savings, which in turn
culminated in cost savings.
