Design and construction of Tongwamen Bridge, China

Abstract

Tongwamen bridge is a half-through, concrete-filled steel tubular (CFST) X-type arch bridge with deck width to span ratio of 1/23·8. It is the first time that arch ribs of the plane truss type have been used in the construction of a long-span CFST bridge in China. The rationality of the design for this type of large-span, narrow bridge is justified using a description and discussion of some key issues related to the bridge design and construction, The paper provides an example of the design of a long-span, narrow, CFST arch bridge.

The Study of Optimal Design Method for Safe Monitoring in Tunnel

“…The safety monitoring was emphasized at home and abroad, more and more practices and researches were carried out [19] . Whether the monitoring items, equipments and methods or analytical methods, they have been improved greatly [20][21] .…”

Application of Dynamic Unstressed State Method in Vertical Rotation Construction of Bridges

“…Considering local natural environment and geologic conditions, from technology and economy perspective, a bridge type of reinforced concrete box-ribbed arch bridge is preferable [1]. The construction methods of reinforced concrete box-ribbed arch bridge normally include erection by cableway method [2], cantilevered assembling arch centering with cast-in-situ concrete method and rotation construction method [3], etc. During an erection by cableway method, due to poor integrity of arch ring, cracks usually appear at joint places during operation stage.…”