Finite element analysis on shear lag effect of the test model of Chaoyanggou Reservoir Bridge

The composite box-girder bridge with corrugated steel webs is a new type of bridge structure. It was originally often used for continuous beam and continuous rigid frame bridges, and with its ever-expanding applied range and rising requirement of the span, domestic and foreign designers also begin to apply it in larger span bridges such as cablestayed bridge and partially cable-stayed bridge. In the consideration that partially cablestayed bridge appeared later and its structure itself is relatively new, the application of this bridge type with corrugated steel webs as box girder webs in domestic and overseas is not widespread. It is necessary to conduct a comprehensive research on the mechanical properties of partially cable-stayed bridge with corrugated steel webs. Combined with existing research results, this paper relies on one domestic and newly built partially cablestayed bridge with corrugated steel webs called Zhengzhou to Dengfeng Fast Track Chaoyanggou Reservoir Bridge (hereinafter referred to as “Zhengzhou Chaoyanggou Reservoir Bridge”) as engineering background. The research on the shear lag effect for partially cable-stayed bridge with corrugated steel webs is conducted through experimental study and finite element analysis, which is helpful to deeply understand the mechanical properties and application of this structure.