Design for a viaduct which consist 6 spans each precast segmental box girder structure. The design involvement includes road alignment, drainage and geotechnical design. The deck is integral with pier columns. The pier column is built using precast unit and it is a first project in Malaysia to use precast column in bridge structure. Single 2.5m Dia and 1.8m Dia hand dug caisson was used for pier and abutment respectively. The viaduct structures consist of precast segmental concrete box girders having a maximum span of 40 m. The project is currently under construction and is due for completion in August 2010.
Design for a viaduct which consist 6 spans each precast segmental box girder structure. The deck is integral with pier columns. The pier column is built using precast unit and it is a first project in Malaysia to use precast column in bridge structure. Single 1.8m Dia and 1.2m Dia hand dug caisson was used for pier and abutment respectively. The viaduct structures consist of precast segmental concrete box girders having a maximum span of 44 m. The project is completed in October 2011.
Detailed design of this 40m span footbridge with a prestressed concrete deck supported by a steel arch and steel hangers, constructed over a busy highway in the centre of an urban area. The project is targeted in completion in December 2013.
Design of 1.55 km of 2 viaducts as part of a project to improve traffic flow on Golden Triangle Area in Kuala Lumpur City Centre under “Rancangan Malaysia ke-9”. These 2 viaducts are integral with the pier columns. Hinges and expansion joints utilised in the span through half joint arrangement. This type of bridge is the first in Malaysia. The viaduct structures consist of precast segmental concrete box girders having a maximum span of 55 m. The project is currently under construction and is due for completion in August 2009.
Detailed design on all approach viaducts for three major river crossings, the Bonny River, Escravos River and Forcados River. The main spans of these crossings were a 1500m span suspension bridge, 700m cable-stayed bridge and 350m cable-stayed bridge. Our work included the detailed design of the approach viaducts to the main spans, including the superstructure with 100m spans and the substructure with pier column height up to 55m and piled foundations through 20m depth marine clay soil. The decks consisted of precast segmental concrete box girders used. There are 2 deck modules for the approach spans, 75m - 4x100m - 75m and 75m - 3x100m - 75m span arrangements. End span are erected using the false cantilever method.
Four directional ramps consisting of a total of 303 nos. precast segments for the box girder deck. Our works include
i) Shop drawings for Precast Concrete Segments, temporary prestress
ii) Casting Yard & Erection Method
iii) Temporary Works Design for Casting and Erection
iv) Alignment Control for Precast Concrete Segments, casting data and erection data
Detail Design of 6 ramps precast segmental box girder viaducts and 4 cast in-situ bifurcation for New CIQ complex in Johor Bahru. The precast segmental deck has a total length of 2 km and spans up to 42m utilising both internal and external prestressing tendons. The project was completed in June 2008.
Construction engineering and temporary works design, including: temporary work for segments erection, precamber for typical and special crossing, checking on permanent works design during the segment erection using overhead gantry and temporary prestressed design for erection. The project is targeted in completion in December 2014.
Detail Design of 4 ramps precast segmental box girder viaducts and 1 cast in-situ bifurcation for New CIQ complex in Johor Bahru. The precast segmental deck has a total length of 2 km and spans up to 44m utilising both internal and external prestressing tendons. All the deck is built monolithic with the single pier and portals. The project was completed in December 2010.
Project Consultant for the elevated guideway structures for 5 of 8 packages that make up the total length of 41.5kM for the viaduct. We were involved in packages 1, 2, 5, 6 and 7. Our scope included the concept and preliminary design, followed by the detailed design of the viaduct structures, including the superstructure, substructure and piled foundation design. During construction we are the supervising engineers with staff permanently on site. The project is targeted in completion in December 2016.
Independent Checker for Segments erection including all the temporary works. Provide advice on the segment casting and investigation of the defeats and improving the casting process for UEM.
Tanjung Puteri bridge consists 2 ramps of viaduct, Inbound and Outbound. Total length for each bridge is approximately 160m and width varies from 14.5m to 19.5m. The superstructure is using modified U-beam and precast segmental cross head for substructure. Superstructure, substructure design and shop drawings for pre-cast crosshead. Temporary prestressed and construction stage design. The project was completed in 2007.
Gamuda Land’s maiden international project - Yen So Park in Hanoi, Vietnam is primed to be South Hanoi’s premier business district. This 800-acre park will include an integrated township, a world-class urban park and the biggest and most modern sewage treatment plant in Vietnam. This will be the Gamuda group’s finest township development and infrastructure expertise in a single project. Design of RR3 viaduct, Bridge 3, 4, 5, 6 and 7 using beam and slab concept and supported using bored pile (pile group and pile bent method) foundation. Design using AASHTO and Seismic condition under Zon 3, g = 0.2. The project is currently under construction and is due for completion in 2012.