Space Frame Latice Model for Stress Analysis of Bridge | Zendy

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Space Frame Latice Model for Stress Analysis of Bridge

Author(s) -

Chao Liu,

Dong Xu

Publication year - 2010

Publication title -

the baltic journal of road and bridge engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.259

H-Index - 21

eISSN - 1822-4288

pISSN - 1822-427X

DOI - 10.3846/bjrbe.2010.14

Subject(s) - rigid frame , structural engineering , space frame , box girder , stress (linguistics) , girder , shear stress , engineering , bridge (graph theory) , stress space , frame (networking) , internal forces , finite element method , materials science , mechanical engineering , composite material , constitutive equation , medicine , linguistics , philosophy

This article presents a space frame lattice model for the analysis of stress of entire cross-section of bridge. The authors focused on analyzing the relatively weaker position of stress in box-girder section, using as an example the Xintan Bridge over the Qijiang River in Chongqing, China. The Xintan Bridge has a continuous prestressed concrete rigid frame with 75+130+75 m span. They calculated and analyzed the shear stress and principle tensile stress of the box girder cross-section in this bridge, using an innovative layout method of mixed internal and external prestressed tendons. They conclude that the space frame lattice model is accurate for calculating the stress state of a bridge. This model can simulate the process of long-term cracking as well as deflection of large-span pre-stressed concrete girder bridges.

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