Balanced-Cantilever (at TW)

Project Reference Catalogue Bridge Services

Balanced Cantilever Bridges


Balanced Cantilever Bridges Suramandu Approach Bridges, Indonesia Design & Consulting Services

Client CIC; consisting of ADHI - HUTAMA WASKITA - WIJAYA; a fourway JV of Indonesian contractors. Project Design and consulting services for the east and west decks of the north and south approach bridges. Services - Concept design optimization - Detailed design and drawings - Design certificate Services period 2006 - ongoing Background Detail design and construction stage analysis services are being provided for the construction of the eastern & western decks of the north and south

approach bridges using the balanced cantilever method. Both north and south approaches are 640 m in length; and comprise of 40 m + 7 x 80 m + 40 m spans. Both decks are 15 m wide with single cell, concrete box sections; which are 4.5 m deep at the support piers and 2.3 m deep at mid span. Services provided for the concept design optimization include: - review of the design criteria with particular reference to ship impact and seismic requirements - survey information review including bathymetry - review of geological investigations and identification of additional work

- development of substructure and superstructure options for a span ranging from 80 m to 125 m - preliminary design and provision of major quantity schedules - preferred design recommendations

Services for the preparation of detail designs and drawings included: - structural analysis - design calculations and drawings of the agreed concept design - construction drawings for the contractor’s program - detail design drawings for the: - piles and pile caps - typical and V shaped piers - superstructure Also design certification services will be provided to the contractor.


Balanced Cantilever Bridges Suramandu Approach Bridges, Indonesia Construction Engineering & Traveller Design

Client CIC; consisting of ADHI - HUTAMA WASKITA - WIJAYA; a fourway JV of Indonesian contractors. Services period 2006 - ongoing Project Construction engineering services and traveller design services are being provided on the Suramandu Approach Bridges in Indonesia. Background Services are being provided to CIC for the construction of the eastern and western decks of the north and south approach bridges.

Both decks are 15 m wide with single cell concrete box sections; which are 4.5 m deep at the support piers and 2.3 m deep at mid span. The north and south approaches are both 640 m in length; and comprise of 40 m + 7 x 80 m + 40 m spans.

- provide all necessary movement The services to CIC for Suramandu Cable Stayed Bridge between Grid Lines 45 and 48 are being provided by others. Construction engineering services are being provided for the balanced cantilever construction of both east and west decks of the northern and southern approaches. Construction engineering services include: - stress calculations; taking account of the creep and shrinkage effects at each construction stage - camber calculations and set up values at each construction stage and the final stage at the deck - accounting for the actual traveller and construction loads - prestressing instructions - check on local bursting and splitting forces at the anchorage locations; and rebar calculations - bearing preset calculations

information for expansion joints Services are also provided for design modifications to the bridge deck and pile foundations in accordance with the final approved design. Technical services to CIC include detail designs and drawings for one type of form traveller to use for the balanced cantilever construction of the east and west decks of both the approach bridges. The form traveller design includes: - detailed structural design and calculations of the traveller - detailed structural fabrication drawings of the traveller - hydraulic specifications - site inspections of the traveller - operating manual - safety instructions - equipment assembly instructions - equipment materials list


Balanced Cantilever Bridges No. 6 National Highway, Contract C 607, Taiwan Balanced Cantilever Bridge

Client MOTC; Ministry of Transportation and Communications and the DSI Construction Company. Project The No.6 National Highway Contract C 607 is to be constructed in Nantou County, Taiwan; being in 3 sections and 1,586 m in overall length. Services - Construction stage calculations - Prestressing shop drawings - Contractor’s consultant - Camber control calculation Services period 2006 - ongoing Background A new multi span concrete bridge is to be constructed for No. 6 National Highway Contract C 607 using the balanced cantilever method.

The 1,586 m bridge was designed to be constructed in three sections : − Grid line 18 to 24 85 m + 4 x 140 m + 73 m − Grid line 24 to 30 73 m + 4 x 140 m + 85 m − Grid line 30 to 32 75 m + 75 m −

The balanced cantilever method will allow the roadway bridge to be built in a segmental manner from the fixed piers; and then gradually advance out, segment by segment. Contract C 607 has a concrete box girder deck 24.4 m wide and varies from 3 to 7 m deep.


Balanced Cantilever Bridges Beylerderesi Road Bridge Project, Republic of Turkey

Client Mega Yapi Construction and Trading Company, Turkey. Project Beylerderesi Bridge Project, Turkey. Services - Detailed design - Construction engineering - Consulting services Services period 2005 - ongoing Background The Beylerderesi Bridge in Turkey is to be constructed near Malatya City; and links Elazi - Malatya - Darende.

The bridge is to span a valley and be constructed by the balanced cantilever method with a main span of 190 m and back spans of 115 m. The bridge deck will be constructed as a double box concrete section 24 m wide, 2.5 m deep at the center

and 10.5 m over the twin concrete piers; which are 53.6 m high. The balanced cantilever bridge will be for bi directional road traffic, and consisting of : - 4 x 3.5 m wide traffic lanes - 2 x 2.25 m emergency lanes - 2 x 2 m wide footpaths Detailed design services include: - structural analysis of the bridge - dynamic analysis in accordance with the seismic requirements - detail designs of the foundations, piers, superstructure & abutments. Construction engineering services will include the: - erection stage calculations - stress calculations at each stage - effects of creep and shrinkage - precamber control at each stage - camber control and procedures - stressing sequences - bearing preset values - design of temporary towers

- design of the traveller - design of self climbing forms - fabrication drawings Site visits and supervision services are also being provided to support the Mega Yapi Construction and Trading Company during the various stages of the balanced cantilever construction of Beylerderesi Road Bridge.


Balanced Cantilever Bridges Agin Provincial Road Bridge Project, Republic of Turkey

Client Mega Yapi Construction and Trading Company, Turkey.

The twin concrete support piers are 20 m high on piled foundations sited outside of the reservoir storage area.

Project Agin Road Bridge Project, Turkey

The superstructure detailed design services include structural analysis of the steel bridge and the dynamic analysis in accordance with seismic requirements; the preparation of a calculation report; and production of the detailed designs, the workshop drawings and material lists.

Services - Detailed design - Construction engineering - Temporary work designs - Consulting services Services period 2005 - ongoing Background The Agin Bridge is to be constructed on the Agin Provincial Road over a portion of the Keban Baraji Dam nearby Elazic City; and linking Elazig to Apapgir.

The construction engineering services included the: - steel erection analysis procedures - check on box girder construction stresses - precamber data for fabrication - camber control method statement - erection proposal, the equipment, transportation resources; and costs - method statements for manufacture and erection - consulting services

The 520 m long steel bridge has a main span of 280 m with back spans of 120 m. The deck is 11 m wide, 3.2 m deep at the center and 11.2 m deep Services for major temporary works over the supporting piers. included all the works required for the bridge erection including the temporary support towers, stiffening/ strengthening of the deck, erection

gantry, temporary support cables and cable anchorages and segment transportation methods.


Balanced Cantilever Bridges Artvin - Erzurum Road Bridges Project, Republic of Turkey

Client Dolsar Muhendislik Company, Turkey. Project Artvin – Erzurum Road Bridges. Services period Preliminary and detailed design. Services period 2006 - 2007 Background The roadway from Artvin to Erzurum is presently along the bottom of deep valleys in rugged terrain in north east Turkey. A dam is planned for this area which will flood the valleys and require the road system to be relocated along the mountain tops. The new road alignment will cross over four of the valleys of the new reservoir requiring the design of four high level bridges. The very high piers of each bridge are to be sited in the valle y floor and are then partly submerged by the reservoir where the difference in high and low water levels could be 45 m. The area is a highly active seismic zone and the designs of the bridges have to account for this; as well as potential hydrodynamic effects during earthquakes of stored water surges on the bridge supporting piers. All four bridges are 15 m wide and will be constructed in concrete using the balance cantilever method. Berta and Budan Bridges have main spans of 185 m and side spans of 87.5 m; while the Akarsin Bridge main span is 132 m with side spans of 71.5 m. These bridges will be supported by 2 very high concrete piers founded on the valley floor and range from 75 m to 108 m in height. Sengan Bridge is 190 m long and will be centrally supported by a 97.5 m high pier founded on the valley floor.


Balanced Cantilever Bridges No. 6 National Highway, Contract C 601, Taiwan Balanced Cantilever Equipment

Client - MOTC, Ministry of Transportation and Communications - Pan Asia Contractor

a 12 m wide main box which is a part of the final 24 m wide bridge deck.

Project No.6 National Highway, Contract C 601 balanced cantilever bridge equipment in Nantou County. Services - Formwork traveller design - Deck formwork design - Pier formwork design - Pier head formwork design - Construction consulting - Construction supervision - Construction stage calculations - Camber control calculations - Prestress shop drawings

The method allowed the bridges to be built in a segmental manner from fixed piers to gradually advance out, segment by segment until the central span was completed. The four sets of balanced cantilever form travellers were designed for C 601 construction.

Services period : 2005 – 2008 Background The balanced cantilever method was selected for Contract C 601 to cross a river with multiple spans of 105 m.

Two sets of balanced cantilever form travellers were designed for the ramp deck with a tight radius of 120 m. The other two sets were designed for


Balanced Cantilever Bridges No. 6 National Highway, Contract C 602, Taiwan Balanced Cantilever Bridges

Client - MOTC; Ministry of Transportation and Communications - BES Construction Company Project The No.6 National Highway Contract C 602 for seven individual bridges to be constructed in Nantou County by the balanced cantilever method. Services - Construction stage calculations - Prestressing shop drawings - Contractor’s consultant Services period 2005 - 2008 Background Seven individual multi span bridges are to be provided for No. 6 National Highway Contract C 602.

The balanced cantilever method allows the bridges to be built in a segmental manner from fixed piers; and gradually advance out, segment by segment.

C 602 consists of seven balanced cantilever bridges, with spans of: 2 bridges: 70 + 5 x 120 + 75 m 2 bridges : 70 + 4 x 105 + 76 m 2 bridges: 80 + 2 x 120 + 90 m 1 bridge : 85 + 5 x 140 + 75 m

The seven bridges will be 4,302 m in overall length. All the bridges have a multi cell concrete deck 3.0 to 7.0 m high and 24.9 m in width


Balanced Cantilever Bridges East - West Expressway, Contract E 708 - 4, Taiwan Balanced Cantilever Equipment

Client - MOTC; Ministry of Transportation and Communications - Chun - Yuan Contractors Project Design and construction engineering services for the four sets of balanced cantilever equipment form travelers; with triple main frames used for the construction of 3 balanced cantilever bridges on Contract E708 - 4. Services - Form traveler design and fabrication - Formwork design - Construction stage calculations - Camber calculations and bearing presets - Project planning, consulting and supervision - Shop drawings Services period 2004 - 2007 Background The balanced cantilever method was selected for the construction of the 3 balanced cantilever bridges; with a central span of 85 m.

The method allowed the bridge to be constructed in a segmental manner from fixed piers, gradually advancing out, segment by segment until the eventual completion of the 3 bridge sections of Contract E708 - 4. 2 sets of form travellers weighed 75 tons each for a deck width of 22.8 m; and the other 2 sets weighed 70 tons each for an 18.2 m deck width. Responsibilities also included for: - construction engineering - consultant, equipment design - construction stage calculations


Balanced Cantilever Bridges Taiwan High Speed Rail Project, Balanced Cantilever Method Client Taiwan High Speed Rail Corporation. Project Over 127 km of 13 m wide, prestressed concrete viaducts; were constructed; 10 JV contractors designed and built 8.5 km of HSR viaducts using the BCM Balanced Cantilever Method. Services Independent Checking Engineer and Independent Site Engineer services. Services period 1999 - 2007


Balanced Cantilever Bridges Taiwan High Speed Rail Project, Contract C 250, Balanced Cantilever, Design Unit 09.05

Client THSRC; the Taiwan High Speed Rail Corporation; the BOT concessionaire company responsible for the 345 km high speed rail project. Project Design and Construct C250; Hochtief / Ballast Nedam / Pan Asia; HBP JV. Services - Preliminary design - Detailed design - Contractors consultant - Equipment design Services period 2001 – 2003

Background Services were provided for detailed design and construction support for the three span prestressed concrete high speed rail bridge in Design Unit DU 09.05.

The bridge alignment was located near Taichung and the prestressed concrete box girders were designed to be constructed by the balanced cantilever method. The high speed rail elevated bridge design was carried out in accordance with the THSRC design specifications for the project. Services included the preparation of a comprehensive major temporary works submittal package containing the complete design analysis, shop drawings and calculations. The calculation package and shop drawings included the details on all column cross beams, struts, bracket connections; all taking into account of the horizontal loadings from wind, earthquake and eccentricities and differential vertical loading during erection, casting and dismantling.

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 this structure. The analysis assured that the HSR elevated structure was well within the specifications requirements.

Services also covered the balanced cantilever construction equipment, which was used for the erection of the three span bridge sections. Following the temporary works design package for DU 09.05; the traveller design was repeated for the Design Units DU 10.06b, 11.05 and 11.07.


Balanced Cantilever Bridges Wan An – Chiang Gee Bridge, Peng Hu, Taiwan Balanced Cantilever Bridge

Client Provincial Highway Bureau, Taiwan. Project The Wan An - Chiang Gee Balanced Cantilever Bridge. Services - Feasibility study - Preliminary design - Detailed design - Consulting services Services period 1998 – 2003 Background Services have been provided for the feasibility study; and the preliminary and detailed design of the Wan An – Chiang Gee balanced cantilever bridge.

The islands of the Peng Hu group are characterized by vertical basalt hexagonal columns rising abruptly from the sea. The bridge connects Wagan Island with Jiangjiunau Island in the Peng Hu Archipelago. Wagen Island has beautiful sandy beaches and both islands have well preserved historic residences and temples. The bridge main span is 210 m with two back spans of 115 m, and deck width of 12.6 m. The balanced cantilever bridge is supported by two piers which are founded on 18 m deep sea piles.


Balanced Cantilever Bridges Second Freeway, Contract C 303, Taiwan Balanced Cantilever Equipment

Client Black Stone Construction. Project Second Freeway, Contract C 303. Services - Formwork traveler design and fabrication - Formwork design - Construction planning - Construction consulting - Construction supervision - Shop drawings Services period 1997 – 2001 Background Four sets of balanced cantilever form travellers were designed for the construction of the 2nd Freeway C 303 balanced cantilever bridge.

- supervision during erection The balanced cantilever method was selected for Contract C 303 to cross the First Freeway with a central span of 120 m. This method allowed the bridge to be built in a segmental manner from fixed piers gradually advancing out, segment by segment until the central span was completed. Two sets of form travellers weighed 90 tons each for a varying deck width of 22.8 m to 25.2 m. The other two sets weighed 75 tons each with a deck width of 22.8 m. The services included: - construction engineering - design of formwork travelers


Balanced Cantilever Bridges Second Freeway, Contract C 321, Taiwan Balanced Cantilever Construction Client Pan Asia Corporation. Project Engineering services provided for the construction of Contract C 321; by the balanced cantilever method. Services - Detail static calculations - Structural detail drawings and mechanical drawings - Discussion and meetings with the fabricator and contractor - Inspection during the fabrication process - Final inspection of the assembled equipment in the fabrication yard - Operating Manual Services period 2000 - 2001 Background Engineering services were provided to Pan Asia Corporation for balanced cantilever and the advancing shoring bridges on the Second Freeway.

The services included the design of one Traveller, which was capable to cast the C 321 balanced cantilever bridges; and included: - detail static calculations - structural detail drawings - mechanical drawings - discussion and meetings with the fabricator - inspection during the fabrication process - final inspection of the assembled equipment in the fabrication yard - operating manual including detailed operating instructions - inspection on site of the assembled traveller

The project required the calculation of advancing shoring and balanced cantilever units; including: - detail calculations of all erection stages - calculation of the stresses at each construction stage - precamber for each construction stage - the effects of creep and shrinkage on the stresses - levels at all segment locations - check of final state stresses of the completed structure - drawings for all concrete dimensions - shop drawings for all prestress cables - prestress instructions - check of the design and installation procedure for the bearings and - technical assistance during the expansion joints construction - preset values for the bearings


Balanced Cantilever Bridges Second N - S Freeway, Contract C 376, Taiwan Balanced Cantilever Bridges

Client Taiwan Area National Expressway Engineering Bureau; ( TANEEB ); and Hwang Chang Contractors. Project The method of balanced cantilever was selected for construction of 2 parallel bridges both with a deck width of 16 m; namely: - BU2; 310 m long comprising of 50 m + 2 x 105 m + 50 m spans - BU 6; 330 m long comprising of 90 m + 2 x 105 m spans Services - Formwork traveller design and fabrication - Formwork design - Construction stage calculations - Camber calculations and bearing presets - Project planning, consulting and supervision - Shop drawings Services period 1996 – 2000 Background Eight sets of balanced cantilever equipment formwork travellers were designed for construction of two parallel; single cell prestressed box girder decks.

Each set of equipment weighed 52 tons. Assigned as the official consultant to TANEEB during the construction. The responsibilities also included: - construction engineering - equipment design consultant - consultant services - construction stage calculations - prestress instructions


Balanced Cantilever Bridges Kao Ping Hsi Bridge Approach Viaducts, Taiwan Second Freeway, Contract C 381 Balanced Cantilever Equipment Client Taisai, Kawada, Raito and Pan Asia Joint Venture Contractors. Project The Kao Ping Hsi Bridge; Balanced Cantilever Approach Viaducts, C 381. Services - Formwork traveler design - Construction stage calculations - Formwork design - Camber calculations - Bearing presets - Project planning - Shop drawings - Specialist consultant - Construction engineering - Construction supervision Services period 1996 – 2000 Background Four balanced cantilever equipment sets were designed for construction of the Kao Ping Hsi Bridge Approach Viaducts. Each set weighed 52 tons.

The method of balanced cantilever was used for the construction of: - Pier 2 to Pier 7; 2 x 560 m long 100 m + 3 x 120 m + 100 m - Pier 7 to Pier 13; 2 x 460 m long 5 x 80 m + 60 m The widths were 2 x 16.25 m and the depths were: - Pier 2 to Pier 7; 3.2 m to 8 m - Pier 7 to Pier 13; 3.2 m to 5 m The bridge is located on the border of Kaohsiung and Pintung Countries crossing the Kao Ping River; and was opened in January 2004.


Balanced Cantilever Bridges Highway Contract E 811, Chao - Chow, Taiwan Balanced Cantilever Viaduct

Client BES Contractors, Taiwan. Project Provincial Highway, Contract E 811, Kaohsiung, Taiwan. Services - Equipment design and fabrication - Construction stage calculations - Temporary works design - Camber calculations and bearing presets - Stress analysis - Shop drawings Services period : 1997 – 1999 Background Provincial Highway E 811 included the construction of four advancing shoring bridges with a total length of 980 m; and one 160 m long free cantilever bridge B 106 with spans of 45 m + 70 m + 45 m.

The balanced cantilever method was selected to allow the elevated highway to be constructed in a segmental manner from fixed piers. Gradually advancing out, segment by segment until the completion of the 160 m highway section. Services were provided for: - construction engineering - equipment design - site supervision - construction consultant - design check services during construction The deck was designed as a double cell prestressed concrete box girder with a rounded deck shape. Two sets of the balanced cantilever equipment were designed for the 22.8 m deck width; each set with a weight of 75 tons.


Balanced Cantilever Bridges Expressway No. 5, Contract C 220, Taiwan Pengshan East & West Bridges

Client Hsin Shung Construction, Taiwan. Project Balanced cantilever construction of Penshan East and West Bridges. Services - Construction stage analysis - Camber calculations - Prestressing instructions Services period 1998 – 1999 Background The 30.8 kilometer Expressway is from the eastern suburb of Taiwan City to Ilan on the eastern coast line of Taiwan and included 30 bridges.

Pengshan Hsi East & West Bridges were constructed by the balanced cantilever method. Services were provided to the contractor for the: - construction stage analysis - bridge erection sequence - camber calculations - prestressing instructions

The parallel Pengshan Bridges were 131 m long for the East and 280 m long for the West and comprised of: - 45 m + 80 m + 6 m - 75 m + 2 x 80 m + 45 m The method of balanced cantilever allowed the Pengshan East and West bridges to be constructed in a segmental manner from fixed piers: gradually advancing out segment by segment until completion of the bridge sections.

The balanced cantilever method was particularly suited for crossing over obstacles in the narrow valleys.


Balanced Cantilever Bridges Second Freeway, Contracts C 325 A & B, Taiwan Balanced Cantilever Bridges

Client Taiwan Area National Expressway Engineering Bureau; ( TANEEB ). Project The Second North - South Freeway Contracts C 325 A & B constructed by the balanced cantilever method. Services - Project management - Evaluation of the bridge type and construction method - Preliminary and detailed designs Services period 1996 - 1998 Background The Second North - South Freeway Contracts C 325 A & B consisted of 15 bridges; namely: - 2 balanced cantilever bridges - 12 advancing shoring bridges - 1 simply supported bridge

All the bridge types were single cell prestressed concrete box girders; 16.1 m wide. The Wusi First Bridge crossed over the Bianzihtou Dike and the high northern sandbank of Wusi River. The main span was a 1,700 m curved roadway over the river, which on the south bank crossed over the Hemei Dike and linked to the Interchange. The main bridge skirted the eastern edge of the Dadu River Water Bird Reservation and was constructed by the balanced cantilever method. The main channel of the river has an abundant flow of water all year long and a double sheet pile cofferdam was used to construct the foundations of the river crossing.


Balanced Cantilever Bridges Second Freeway, Houlong Section, Contract E 303 Balanced Cantilever Bridges Client BES Construction, Taiwan. Project Contract E 303 balanced cantilever bridges B 309 and B 314 on the Second North South Freeway. Services - Project management - Stress analysis - Temporary works design including the foundation Services period 1997 - 1998 Background The Second Freeway Houlong Viaduct crossed the Houlong River and E 303 included two bridges constructed by the balanced cantilever method; namely: - B 309: 300 m in length with spans of 85 m + 130 m + 85 m - B 314: 300 m in length with spans of 45 m + 70 m + 45 m

The bridges comprised of double cell prestressed box girders 22.8 to 25.4 m in width. The final stage stress check on B 309 ( immediately after the continuous bottom cables were stressed ) showed that the stress at the closure segment exceeded the allowable value. This was caused by an excess number of cables in the main span . A proposal was made to reduce the continuous prestress in the main span and to increase the thickness of the box girder bottom slab. A recommendation was presented to the designer and the design was modified accordingly.


Balanced Cantilever Bridges Krungtheb Road Bridge, Chao Praya River Crossing, Bangkok, Thailand

Client Zublin - W&F - Stecon Joint Venture Contractors. Project Krungtheb Road Bridge crossing the Chao Praya River in Bangkok, Thailand. Services Services were provided to the JV contractors for the construction of the Krungtheb Chao Praya River Bridge using the BCM, balanced cantilever method; including: - Construction engineering - Construction consultant - Camber calculations - Shop drawings - Alternative design by using an unbalanced method of bridge construction Services period 1997 - 1998

Background The balanced cantilever method allowed the Krungtheb Bridge to be constructed in a segmental manner from fixed piers gradually advancing out, segment by segment until the eventually completion of the whole bridge.

The superstructure was redesigned as the contractor had proposed to change the construction sequence from simultaneous casting, two side stressing; to alternate casting and one side stressing.

Krungthep Bridge had a total length of 476 m with a 226 m main span and 125 m side spans.

The segment length arrangements and the prestress profile was then changed accordingly.

The depths varied from 12.5 m at the two main piers to 2.5 m at mid span, and at the approach connections.

Stress analysis calculations and precamber instructions were made at each stage of construction.

The bridge deck was a double cell prestressed box girder; 23 m wide; and was built as a free cantilever from the Bangkok side.


Balanced Cantilever Bridges Second Freeway, Contract C 302, Taiwan Balanced Cantilever Equipment Client Black Stone Construction. Project Second Freeway, Contract C 302 is one of the northern most sections, and is a part of the Taipei bypass to Keelung City.

The construction of C 302 was in very steep terrain and thru very congested areas. Services - Construction engineering - Formwork traveler design - Formwork design - Construction planning, consulting and supervision Services period 1996 - 1997 Background The balanced cantilever method was selected for the construction of C 302 to allow the bridges to be constructed in a parallel segmental manner from fixed piers, gradually advancing out, segment by segment until completion.

Sixteen sets of balanced cantilever equipment formwork travellers were designed for the construction of several prestressed concrete single cell box girder cantilever bridges for the construction of Second Freeway Contract C 302. The sixteen sets comprised of eight units; each weighed 45 tons with a deck width of 16 m. Eight other units weighed 52 tons each for a 16 m deck width.


Balanced Cantilever Bridges Bih Tan Bridge, Second Freeway, Taiwan Balanced Cantilever Bridge

Client - Taiwan Area National Expressway Engineering Bureau; ( TANEEB ) - Continental Engineering Project Second Freeway, Bih Tan Bridge, has a curved arch frame and the central span was constructed using the balanced cantilever method. Services - Construction stage calculations - Site supervision - Consultant to the contractor Services period 1990 - 1993 Background The Second Freeway Bih Tan Bridge comprised of two parallel structures constructed as a three span arched bridge crossing the Hsintien River in the south of Taipei City.

The three dimensional curved bridge structure is 800 m long with each of the decks being 16.5 m wide. The recreational area is popular for boating activities; and downstream is the Route Pei - 110 Bridge and upstream is the Bih Tan Suspension Bridge for pedestrian traffic.


Balanced Cantilever Bridges First Freeway, Contracts C16 & C17, Taiwan Balanced Cantilever Bridges

Client CECI Engineering Consultants. Project Contracts C16 and C17 were for the construction of elevated lanes parallel to the existing First Freeway. Services - Construction supervision - Consultant to CECI Services period 1991 – 1993

Background The First Freeway in Taiwan was to be widened by the addition of parallel elevated lanes alongside the existing at grade operational freeway.

Contracts 16 & 17 to widen the First Freeway were awarded as part of the approaches into Taipei City and were to be constructed using the balanced cantilever method. The balanced cantilever method was selected to allow the elevated lanes to be built in a segmental manner from fixed piers gradually advancing out, segment by segment until the whole bridge was completed.

The method was particularly suitable when crossing major obstacles that required large spans over elevated operational roads where ground support was not possible; and also to cross over the Keelung River. Supervision and consulting support services were provided to the project designer during the construction.


Balanced Cantilever Bridges Chang Shu Li Bridge, Second Freeway, Taiwan

Balanced Cantilever Bridges Client The Taiwan Area National Expressway Engineering Bureau, ( TANEEB ). Project Chang Shu Li Bridge on the Second Freeway, Taiwan. Services - Preliminary and detail design consultant to Sinotech - Technology transfer Services period 1991 - 1993 Background The balanced cantilever method was selected for on the construction of the 372 m long Chang Shu Li Bridge.

The bridge being constructed in a segmental manner from fixed piers gradually advancing out, segment by segment until the completion of the whole bridge. The project scope was for two balanced cantilever bridges 372 m long, 16.4 m wide, with a maximum span of 50 m.

Balanced-Cantilever (at TW)

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