Solid Sections’ Calculation Length Analysis of Continuous Rigid Frame Bridge Hollow Single Thin-walled Pier
[1]Li Yilin,Huang Xuqin,Wu Xiaoguang.Solid Sections’ Calculation Length Analysis of Continuous Rigid Frame Bridge Hollow Single Thin-walled Pier[J].Journal of Zhengzhou University (Engineering Science),2019,40(03):92-96.[doi:10.13705/j.issn.1671-6833.2017.06.031]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
40
Number of periods:
2019 03
Page number:
92-96
Column:
Public date:
2019-04-30
- Title:
- Solid Sections’ Calculation Length Analysis of Continuous Rigid Frame Bridge Hollow Single Thin-walled Pier
- Keywords:
- continuous rigid frame bridge; Hollow thin-walled pier; stiffness transition; thrust stiffness; calculate length
- CLC:
- -
- DOI:
- 10.13705/j.issn.1671-6833.2017.06.031
- Abstract:
- Continuous rigid frame bridges with high piers mostly use hollow thin-walled pier, and the bottom of the piers should have appropriate solid sections in order to ensure the stiffness transition of the cap and thin-wall pier. At present, there is no literature to research the design length of solid section, and the design is based on engineering experiences to select, which has great limitations. In this paper, the transfer length of the solid section is first time analyzed by calculating the anti-push rigidity of bridge in axial direction of the single thin-wall pier in the hollow section and the solid section, and the constraint effect at the connection point between the hollow section and the solid section is simulated by exerting the translational constraint, the rotational constraint and the flat rotation coupling constraint springs. Finally, engineering examples are given to verify the correctness and applicability of the analysis thought and derivation process. In this paper, the research conclusions suggest that the solid section at the bottom of the piers’ calculation length range can take 3-6m, and can be written into the specification to guide the design and construction of the high piers.
- References:
- -
- Similar References:
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Last Update:
2019-04-16