Project Reference Catalogue Bridge Services

Special Bridges

Project Reference Catalogue Bridge Services

Special Bridges

Client - Miaoli City Government, Taiwan - Gen Yeh Engineering Project Miaoli Second Road Bridge, Taiwan. Services - Feasibility study - Preliminary & detailed design - Contractor's consultant - Project planning - Site supervision - Camber control calculation Services period 2004 - ongoing

Background Miaoli Second Road Bridge crosses the main channel of the Houlong River and provides a fast access between the City of Miaoli and Miaoli County. After crossing over the river the four lane road bridge over passes an at grade road; and then passes under the high speed rail line from Taipei to Kaohsiung. With the close proximately of the HSR alignment it was determined that the bridge would have a landmark design; hence the unique pylon butterfly arch shape. The intent being that the pylon would give the impression of the front end of a high speed train traveling at full speed. The bridge is 314.5 m in overall length and 23 m in width; and comprises of the precast box beam section 3.2 m deep for the two approach spans of 45 m and 60 m; a structural steel box section main span of 170 m and 3.2 m deep; and a 39.5 m long precast box beam section. The 45 m high concrete butterfly arch is uniquely shaped and comprises of the single central anchor leg curving up over the 60 m approach span, and then dividing into two back legs which span of the bridge approach.

The bridge forms a sinuously curving structure which comprises of a cable suspended deck close to the butterfly arch pylon; then with an underslung catenary cable and a V shaped strut system over the 2/3 rds of the steel box span near the HSR alignment.

Problems during the design were to: - arrive at a technical design solution for this unconventional arch bridge - ensure the bridge can withstand large earthquake forces - ensure the bridge would be stable in typhoon conditions

Miaoli Second Road Bridge,

Miaoli County, Taiwan

Project Reference Catalogue Bridge Services

Special Bridges Chenab Arch Bridge, Baramulla Link,

Indian Railway Network

Background The 290 km extension of the Indian Railway network provides a direct connection from Delhi to Srinagar in Kashmir. Constructing the rail network in this isolated region involved significant engineering challenges including the 1,315 m long steel arch bridge which crossed the Chenab River. The bridge was 359 m above the river bed and is the highest rail structure of its kind in the world. Chenab Bridge is located in Seismic Zone 5 and wind velocities can be as high as 220 km per hour. Chenab Bridge erection used 26,000 tons of steel and was the largest steel arch built in India. With a 480 m long and 130 m high arch span it was four times the span range of existing arch bridges in India. The bridge has a two rib arch; made from large steel trusses; while the

chords are sealed steel boxes, filled with concrete to assist in controlling wind induced forces. Design services were provided for a set of traveller equipment, used for the erection of bridge steel segments which form the superstructure piers, the arch span and the typical bridge deck spans of 48 m.

The traveller equipment used for the erection of the steel segments being 34 m in length and 16 m in height.

Client Indian Railways. Project Detailed design of one set of travel-ler equipment used to erect the Chenab Arch Bridge steel segments to form the superstructure piers, arch and the typical deck spans of 48 m. Services The detailed design of the traveller equipment used for the erection of the bridge . Services period 2005 - 2006

Project Reference Catalogue Bridge Services

Special Bridges Client THSRC; the Taiwan High Speed Rail Corporation; the BOT concessionaire company responsible for the 345 km high speed rail project between Taipei and Kaohsiung. Project Design Construct Lot C 250; Hochtief / Ballast Nedam / Pan Asia; the HBP Joint Venture. Services - Feasibility study - Preliminary design - Detailed design - Contractors consultant - Equipment design Services period 2001 - 2003 Background Services were provided for the detail design and the construction support for the 259.8 m long and eight span composite launched high speed rail bridge crossing the first north south freeway near Taichung. The composite launched bridge was part of the Design Unit DU 11.01. The launched concept was proposed as an alternative for the tender design as it allowed for fast track construction without significant interruptions to the traffic flow on the Second Freeway. The composite concept called for an erection method of launching the U shaped steel trough and then finally casting a concrete deck slab on top using a movable form traveller. Services were provided to determine the method of erection and for the design of the movable form traveller to cast the HSR concrete deck slab.

Taiwan High Speed Rail Project, Contract C 250,

Composite Launched Bridge, Design Unit 11.01

Project Reference Catalogue Bridge Services

Special Bridges Client THSRC; the Taiwan High Speed Rail Corporation; the BOT concessionaire company responsible for the 345 km high speed rail project between Taipei and Kaohsiung. Project Warren Truss Steel Bridges used for very long span crossings on the high speed rail alignment. Services Independent Checking Engineer and Independent Site Engineer services. Services period 1999 - 2007

Taiwan High Speed Rail Project,

Warren Truss Steel Bridges

Project Reference Catalogue Bridge Services

Special Bridges Taiwan High Speed Rail Project, Contract C 210,

Warren Truss Steel Bridge, Design Unit 08

Background Service were provided to the OF joint venture for the preliminary and detail design of the 1,800 ton Warren truss steel bridge in DU 08 to cross a busy highway in northern Taiwan.

The method of construction was to preassemble the rectangular shaped welded box sections and launch the bridge into position; however it was later decided to fully erect the bridge in place on temporary supports. The bridge had a span of 65 m and

consisted of two parallel steel trusses joined by cross beams; and utilized a composite concrete slab for the high speed rail deck. The steel truss bridge design called for a rigorous investigation into the

dynamic behaviour of the bridge to limit the vertical acceleration, cant and end rotations. To determine the magnitude of these values for the high speed rail system

a rolling stock analysis was carried out on the bridge structural elements. The scope of services included: - superstructure design including the concrete slab below track level - dynamic analysis using the finalised substructure dimensions and the

adjacent superstructure design - rolling stock analysis - pot bearing and shear key designs; providing design forces, movements and any other related requirements - expansion joints; providing the truss bridge movements - provision of 3D perspectives - calculations to assess both the assembly and launching stages of the steel truss bridge - provision of loadings as a design input for the temporary bent support - provision of the construction method and drawings - design coordination with THSRC and other nominated consultants - interface coordination

Client THSRC; the Taiwan High Speed Rail Corporation; the BOT concessionaire company responsible for the 345 km high speed rail project between Taipei and Kaohsiung. Project Design Construct Lot C 210; for the Obayashi / Futsu; OF Joint Venture. Steel Truss Bridge, Design Unit 08. Services - Feasibility study - Preliminary design - Detailed design - Contractors consultant Services period : 2001 - 2003

Project Reference Catalogue Bridge Services

Special Bridges Taiwan High Speed Rail Project, Contract C 250,

Warren Truss Steel Bridge, Design Unit 12.03

Background Services were provided to the joint venture for the preliminary and detail design of the DU 12.03 Warren truss steel bridge.

The Warren truss steel bridge being located just north of Taichung HSR Station; comprising of a 22 m high, welded steel box sections that was site assembled using high strength bolts.

The DU 12.03 truss bridge had spans arranged as 61 m + 70 m + 60 m and consisted of two parallel steel trusses joined by cross beams with a concrete

composite slab base for the track. The steel truss bridge de-sign called for a rigor-ous inves-tigation into the dynamic behaviour of the

bridge to limit both vertical accelera-tion, cant and end rotation. To determine the magnitude of these values for the high speed rail system a rolling stock analysis was carried out on the bridge structural elements.

The scope of services included: - superstructure design including the composite slab below track level - dynamic analysis using finalised substructure dimensions and the adjacent superstructure design - rolling stock analysis - pot bearing and shear key designs; providing design forces, movements and any other related requirements - expansion joints; providing the truss bridge movements - provision of 3D perspectives - calculations to assess all the assembly stages of the bridge - provision of loadings as a design input for temporary bent supports - providing the construction method and drawings - design coordination with THSRC and other nominated consultants - interface coordination

Client THSRC; the Taiwan High Speed Rail Corporation; the BOT concessionaire company responsible for the 345 km high speed rail project. Project Design Construct Lot C 250; Hochtief / Ballast Nedam / Pan Asia; the HBP Joint Venture; Design Unit 12.03. Services - Feasibility study - Preliminary design - Detailed design - Contractors consultant Services period 2001 – 2003

Project Reference Catalogue Bridge Services

Special Bridges Taiwan High Speed Rail Project, Contract C 250,

Launched Bridges, Design Units 13.02 / .05 / .08

Client Taiwan High Speed Rail Corporation. Project Design & Construct Lot C 250; JV of Hochtief / Ballast Nedam / Pan Asia; Design Units 13.02, 13.05 & 13.08. Services - Feasibility study - Preliminary design - Detailed design - Contractors consultant Services period : 2001 - 2003 Background Service were provided for the design and erection of 3 of the HSR Warren truss bridges; just south of Taichung Station. The 3 bridges were for the main line rail south and north bound and the branch line to Wurih Depot. The parallel bridges cross the North - South Freeway, the Fazi River and Provincial Highway #1. Each bridge comprised of two parallel trusses joined by cross beams; and were fabricated from welded steel box sections; and then assembled using over 600,000 high strength bolts.

Each bridge consisting of 3 continuous spans 150 + 120 + 140 m; 441 m long, and the weight for all three bridges was 24,000 tons. To avoid any road traffic disturbances, a sophisticated erection scheme was devised to preassemble the first two bridge spans; on temporary supports in the center; and launch this bridge to the south abutment using a 108 m long launching nose beam. Then this bridge was moved sideways into its final position on the west side. The erection procedure was repeated for the next bridge truss, which was launched and then moved into its final position on the east side. The third truss was then erected and launched between the two previously erected bridges. A concrete slab was cast for the track deck after checking the final level and alignment of each of the three bridges.

The steel truss bridge design called for a rigorous investigation into the dynamic behaviour of these bridges; to limit the vertical acceleration, cant and end rotation. A rolling stock analysis was carried out on the bridge structural elements; and mechanical shear keys added to

each bridge to resist the horizontal seismic forces. Two pot bearings (per span per truss); the largest ever to be manufactured; now support the three bridges. A series of shock transmitting units were installed to ensure the uniform distribution of the longitudinal seismic forces among the supporting piers.

Project Reference Catalogue Bridge Services

Special Bridges Nanfang Au Steel Arch Bridge, Suao, Taiwan

Arch Bridge Design

Client MAA Engineers, Taiwan. Project Nanfang Au Cable Supported Steel Arch Bridge across Suao Harbour. Services - Preliminary design - Detailed design - Camber calculations and bearing

presets - Consultant during the construction Services period 1995 – 1998 Background The Nanfang Au Steel Arch Bridge is located on the east coast of Taiwan spanning across the entrance of Suao Fishing Village and an 18 m height clearance was required for the boats. The Arch bridge was built to replace the original concrete bridge across the harbour.

The main bridge span was 140 m, with a 15 m wide deck and was designed as a steel orthotropic fully welded multi cell box construction. The steel arch is 27 m high at the center.

Both preliminary and detailed design services were provided; including the static analysis, cable optimization, seismic analysis as well as buckling analysis at the arch joint.

Project Reference Catalogue Bridge Services

Special Bridges ChoShei - Shi Pipe Support Bridge

Yun - Lin, Taiwan

Client China Petroleum Company. Project Pipe Support Bridge, Taiwan. Services - Aesthetic evaluation - Preliminary & detail design - Construction consultant - Consultant to United Geotech

Services period 1995 – 1996 Background A 70 m truss pipe bridge consisting of high grade galvanized steel pipes 2,200 m in length; was designed to carry the gas and gasoline pipes of the client, China Petroleum across the ChoShei - Shi River.

The design work was carried out in conjunction with United Geotech who were responsible for the bridge alignment and soil investigation. The scope of work consisted of the aesthetic evaluation and preliminary design at the proposal stage, and the detail design including static, seismic and buckling analysis.

Project Reference Catalogue Bridge Services

Special Bridges Taipei – Ilan Expressway No. 5, Taiwan

Bridge Designs Client Sinotech Consulting Engineers. Project : Taipei – Ilan Expressway Services Period : 1990 – 1993 Background A total of 7,113 m of bridges were designed including: - balanced cantilever - incrementally launching - advancing shoring - prestressed concrete arch - cast in place

Of 30 bridges the main ones were: - Shihding Interchange 66 m - Shihding Viaduct 809 m - Tanbian Bridge 480 m - Wutu Hsi Bridge 564 m - Pengshan Viaduct East 394 m - Pengshan Viaduct West 615 m - Pengshan East Bridge 131 m - Pengshan West Bridge 280 m - Pengshan Viaduct 2 231 m - Pinglin Viaduct East 1 538 m - Pinglin Viaduct West 1 290 m - Pinglin Viaduct East 2 650 m - Pinglin Viaduct West 2 628 m - Toucheng Viaduct East 721 m - Toucheng Viaduct West 716 m

Project Reference Catalogue Bridge Services

Special Bridges Taipei – Ilan Expressway No. 5, Taiwan

Ping Lin Interchange

Background The 30.8 kilometer Expressway is from the eastern suburbs of Taipei City to Ilan on the eastern coast line of Taiwan. The Ping Lin Interchange serves the residents of the Ping Lin Tea Village and is located before the entrance to Snow Mountain Tunnel; which is also the location of the Expressway Traffic Control Center. The Ping Lin Interchange structures were constructed by the full support method. The full support method for cast in place structures being the traditional method of bridge construction, that involves, supporting the formwork directly from the ground using a scaffolding system.

Client Sinotech Consulting Engineers, Taiwan. Project Ping Lin Interchange, Taiwan. Services Preliminary and detailed bridge design consultant to Sinotech. Designs were provided for: - balanced cantilever - incrementally launched - advancing shoring method - prestressed concrete arch - cast in place structures Services period 1990 - 1993

Project Reference Catalogue Bridge Services

Special Bridges Taiwan High Speed Rail Project, Contract C 250,

Cast inSitu, Design Unit 09.01

Client THSRC; the Taiwan High Speed Rail Corporation; the BOT concessionaire company responsible for the 345 km high speed rail project between Taipei and Kaohsiung. Project Design Construct Lot C250; Hochtief / Ballast Nedam / Pan Asia; the HBP Joint Venture; for C 250 design and construction of Design Unit 09.01. Services - Preliminary design - Detailed design - Contractors consultant - Equipment design Services period 2001 – 2003

Background Services were provided for detail design and construction support for the 3 span, prestressed concrete high speed railway bridge in Design Unit DU 09.01. The bridge alignment was located near Taichung and the prestressed concrete box girders were designed to be cast insitu. The high speed rail elevated bridge design was carried out in accordance with THSRC design specifications for the project. The dynamic behaviour of the bridge under train loading was checked by carrying out a rolling stock analysis in order to determine the vertical acceleration characteristics of the structure. The analysis assured that the HSR

elevated structure was well within the specifications requirement. As Taiwan is a highly seismic area, subject to severe earthquakes; the elevated high speed rail structure needed to be designed to withstand severe ground movements.