Taking the Linhai Guiwan River Bridge in Qianhai Cooperation Zone in Shenzhen,Guangdong as the background,it introduces the design characteristics&construction methods of the special-shaped beam arch composite system bridge.The Guiwan River Bridge site is located in a complex terrain,and the pile foundation layout needs to avoid the underground passage&other structures.The design scheme is finally determined as a 86.84 m+124.65 m through beam arch composite system bridge,and a straddle transfer beam is used to span the underground passage.The main beam,arch rib and transfer beam form a whole,and participate in the structural stress.The bridge plane is located in the curve section.The main girder is a closed orthogonal special-shaped steel box girder,with a bridge width of 56.2 m～57.8 m,and a large bridge deck width.It is divided into four bridge designs according to the use function,and the structure is complex in stress.The arch rib is composed of a large arch and a small arch,and there is no wind bracing connection between the arch ribs.The sling adopts high-strength steel wire and high vanadium sealed cable,which has compact structure and stable performance,and is applied to long-span bridges for the first time in China.Using the finite element analysis method,the rationality of the design and the feasibility of the construction method are verified,which can provide reference for the design and construction of similar bridges.
万方数据
维普
