Civil & Structural Consulting Engineers

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BRIDGE DESIGN

Client:

Arriyadh Development Authority (ADA), Kingdom of Saudi Arabia, Bernard Consulting Engineers.

Project:

King Abdul Aziz Flyover, Riyadh, Saudi Arabia.

The total length of the approach bridges and main arch bridge is 375m. The main Arch bridge has a single span of 95m and consists of a steel orthotropic steel deck of 26.2m wide. The two prestressed concrete approach bridges each with a total length of 140m have a width of 26.2m.

Services:

Preliminary Design and Detailed Design.
Specialist Bridge Consultant.

Client:

Mega Yapi Construction and Trading Company, Turkish Republic.

Project:

The Ramstore Arch Bridge located in Astana, Kazakhstan consists of a four lane orthotropic steel deck with an approximate span of 120 metres. It is supported by cables from a single skewed arch with a height of 60 metres and a span of 180 metres. The steel box arch, with a weight of 600 tons is made up of 19 segments ranging from 10 to 14 metres in length and a short segment fixed to the foundation at each end.

Services:

Specialist Bridge Consultant, Construction Engineering.

Client:

PT Delta Systech, DSI Republic of Indonesia.

Project:

Lemah Ireng II Bridge, Republic of Indonesia.
The Lemah Ireng II bridge is a free cantilever bridge located in Java, Indonesia. It is part of the Trans Java Semarang ~ Solo toll road development.
The bridge consists of 3 spans(83.75m+132m+83.75m) giving a total length of 300m. The deck is a single cell prestressed concrete girder with a width of 25.2m. The deck has a maximum depth of 7m at the piers and 3m at the abutments.

Services:

Detailed Design & Construction Engineering.

Client:

MK4, MEPS, Republic of Kuwait.

Project:

Maintenance of the Interchanges for the 6th & 7th Highway in the South Jahra & West Jleeb Ashuyoukh Areas. Republic of Kuwait.
RA184: 5 Precast Concrete Segmental Viaducts:
IC1A, IC3A, IC3B: 32m+47+32m Spans = 111m bridge lengths.
IC1B: 32m+42+32m Spans = 106m bridge length
IC4N, IC4S: 32m+44m+32m Spans = 108m bridge lengths.
RA186: 3 Precast Concrete Segmental Viaducts:
IC1A: 28m+39m+39m+28m = 134m bridge length
IC1B: 25m+35m+35m+25m = 120m bridge length
IC11: Total bridge length is 761m consisting of 16 spans with a maximum span of 55m and a minimum span of 32.5m. The average deck width is 12m and the depth varies from 2m to 2.7m.

Services:

Detailed Design, Shop Drawings & Construction Engineering.

Client:

Taiwan Area National Expressway Engineering Bureau & Far Eastern Construction, Taiwan.

Project:

C709A Free Cantilever Corrugated Steel Web Road Bridge Units 8 & 31, Taichung County, Taiwan.

Unit No.8 Bridge is a Free-Cantilever Construction (FCC) bridge with corrugated steel webs. The span configuration is 93m+145m +145m+93m. The depth of the deck cross section varies from 4.0m at the abutment side to 8.5m at the pier location. There are three piers with heights of 8.34m, 12.03m and 10.125m respectively. The superstructure consists of pre-stressed concrete box girders with three cells located at spans P39 ~ P43.

Unit No.31 is also an FCC bridge with corrugated steel webs. The span configuration is 80m+120m +80m. The depth of the deck cross section varies from 3.5m at abutment side to 7.0m at the pier location. There are four piers with heights of 30m, 24.39m, 19.78m and 19.04m respectively. The superstructure consists of pre-stressed concrete box girders with single cells located in spans P107 ~ P110.

Services:

Detailed Design, Shop Drawings, Construction Engineering, Site Supervision & Technical Services.

Client:

Chan Shenn Engineering Consultants, Taiwan.

Project:

The New Chang-Hua High Speed Rail Station Road Extension. Extradosed Bridge, Changhua County, Taiwan. The Extradosed Bridge deck consists of 3 spans; 65m+120m+65m giving a total main bridge length of 250m.

The deck width of 28m is a continuous concrete quadruple box girder constructed in segments using the balanced cantilever construction method. The two concrete pylons are inclined and are a height of 20m above the deck level. The pylons support the concrete deck segments with a total of 36 stay cables. The tallest pier is 10.53m in height.

Services:

Preliminary Design & Detailed Design.

Client:

Astaldi Gulermak Joint Venture / Hakan Kiran Architects, Turkish Republic.

Project:

The Golden Horn Metro Crossing Project consist of four railways bridges spanning across the Halic Inlet located in the centre of Istanbul in the Turkish Republic.
South Concrete Approach Viaduct: 17+25+25+42+32+27.9 meter spans. (168.9m total).
Steel Swing Bridge: 50+70 meter spans. (120m total).
Steel Cable Stay Bridge: 90+180+90 meter spans
(360m total).
North Concrete Approach Viaduct:
27+36+36+36+36+45+28.5+23.5 meter spans
(268m total).
The metro station platform that is located on the main span of the cable stay bridge is linked to each side of the Halic by two steel footbridges that are connected to both sides of the swing bridge and cable stay bridge.
All bridges have a deck width of approximately 13m wide.

Services:

Preliminary Design, Detailed Design & Construction Engineering.

Client:

Nurol Insaat ve Ticaret A.S. Turkish Republic.

Project:

The South Approach Viaduct (SAV) provides the access to the main suspension bridge, which crosses the Izmit Bay, between Dil Iskelesi and Hersek in the Turkish Republic.

The South Approach Viaduct is 1376.4 meters long (1.38km) and it has a maximum span of 136 meters and the tallest pier is approximately 50m in height. The deck consists of a double steel box girder with a width of 35.93m. The deck includes 6 lanes of traffic (3 lanes in each direction), 2 sidewalks and 2 emergency lanes.

Services:

Preliminary Design, Detailed Design, Shop Drawings & Construction Engineering.

Client:

Mega Yapi Construction and Trading Company, Turkish Republic.

Project:

The Agin Cable Stay Bridge links the roadway between the cities of Agin and Elazig in the Turkish Republic. It spans across the Keban Baraji Reservoir. The three span arrangement is 120m+280m+120m which gives a total bridge length of 520m. The main deck is composed of an orthotropic steel box section with a width of 13.0m and is about 31.5m above the water level at the center of the main span. The two steel pylons are 55m in height from the deck level.

Services:

Preliminary Design, Detailed Design, Temporary Works Design, Lifting Equipment Design.

Client:

PT Waskita Karya, Republic of Indonesia.

Project:

Rokan 1 & Rokan 2 Extradosed Bridges, Rokan River, Republic of Indonesia.
Rokan 1: The bridge consists of 4 reinforced concrete pylons and a twin parallel cable plane supporting a concrete deck with a total length of 710m. The structure is founded on piled foundations in the river with a max pile length of 55m. The deck consists of a reinforced concrete section with a width of 20.5m.

Rokan 2: The bridge consists of 4 reinforced concrete pylons and a twin parallel cable plane supporting a concrete deck with a total length of 810m. The structure is founded on piled foundations in the river with a max pile length of 55m. The deck consists of a reinforced concrete section with a width of 15m.

Services:

Feasibility Studies, Construction Engineering,
Contractors Consultant.

Client:

Chun Yuan Construction, Taiwan.

Project:

Shetze Cable Stay Bridge, Taipei County, Taiwan
The Shetze bridge is a cable stay bridge spanning the Keelung river in Taipei County, Taiwan.

The deck consists of a two span continuous steel beam girder with a span configuration of 70m +180m giving a total bridge length of 250m. The deck width varies from 38m to 42m and consists of a double road lane, bicycle lane, motor bike lane and sidewalks.

The inverted “Y” shaped pylon height is 105m from the deck level and is tilted at an angle of 78 degrees.

Services:

Construction Engineering, Site Supervision & Technical Services.

Client:

Gulsan Contractors, Turkish Republic.

Project:

Nissibi Cable Stay Bridge, South East Antolia, Turkish Republic.

The Nissibi cable stay bridge spans across the Euprates river in the south eastern region of Antolia. It serves as a highway link between the cities of Diyarbakir and Adiyaman thus improving the transportation services from the limited services of ferries. The total length of the bridge is 610m with the main span between the pylons being 400m in length. The two side spans are 105m in length respectively. The steel deck has a total width of 22.9m and the two pylons have a height of approximately 85m from the deck level.

Services:

Detailed Design, Shop Drawings, Construction Engineering.