The Lupu Bridge, Shanghai, China

The Lupu Arch Bridge, Shanghai, China, has received the 2008 IABSE Outstanding Structure Award for being 'A soaring box-arch bridge with a record span, clean impressive lines and innovative use of the side spans of the arch and the deck to resist the thrust of the main arch'.

On 17 September, 2008, at the Opening of the IABSE Congress 2008 in Chicago, Jacques Combault, President of IABSE, presented the Diplomas to the Structural Engineers: Shanghai Municipal Engineering Design Institute, Shanghai Urban Construction Design Institute and Tongji University; the Architect, Shanghai Municipal Engineering Design Institute; the Contractor: Shanghai Foundation Engineering Company of Shanghai Construction Group and the Owner, Shanghai Lupu Bridge Investment Development Co., Ltd.The Award presentation took place on September 17, 2008.

The Lupu Arch Bridge, completed in 2003, crosses the Luban River and is located in the South of Shanghai. It is the key connection of the city’s north-south viaduct, and is also the 7th river crossing facility in the Shanghai urban area. The construction of this project aimed to meet the local expansion requirement of getting traffic across the river and improving the traffic condition between Pudong International Airport and the city centre.

The Lupu Arch Bridge is a three-span steel arch bridge including two side spans of 100 meters and the centre span of 550 meters. It has six lanes and two pedestrian walkways for sightseeing, and has the longest span of arch bridges in the world. Two inclined arch ribs are 100 meters high from the bottom to the crown. The arch ribs have as cross section a modified rectangular steel box with a width of five meters and a depth of six meters at the crown and of 9 meters at the base. For the Design a half-through tied-arch bridge was chosen as it suits the particularly soft soil foundation conditions in Shanghai.