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The anchorage zone of cable-stayed bridge tower is the key zone related to the safety of the bridge. Traditionally, prestress tendons are arranged in the concrete tower, in order to avoid the shortcoming of circumferential tendons, a new layout of prestress tendons named as "one-way prestress tendons" is put forward. This paper analyze the spatial stress state of this new design by the software...
As an external prestressed concrete box girder continuous rigid-frame bridge with the longest span in China, the Xiantan Bridge was reported in this paper for its special characteristics. The key points of the end cross beam for anchorage zone and deviation block for the de viator were introduced in detail for its design. The finite element models for them with 3D FEM were created to get the stress...
Based on Dongting Hu three-tower cable-stayed bridge on high-speed railway, different cable measures to improve structural rigidity were studied by using finite element method (FEM). The results show that it's effective to adopt stiffening cables between towers to improve the rigidity of the bridge. The ratio of deflection to span (RODTS) with level stiffening cables is the smallest and the total...
In order to study the in-plane displacement of curved bridge under thermo load, a class of equations for in-plane displacements of curved beams with various end restrictions under thermo load are derived explicitly, based on the principle of thermal expansion and theory of virtual work. In the case of infinite limit of radius, these equations coincide with that of the straight beams. Compared with...
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