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Corrugated Steel Web PC Composite Continuous Box Girder Bridge construction process with prestressing parametric analysis

Author: ZhangXingZhi
Tutor: YangYongQing
School: Southwest Jiaotong University
Course: Bridge and Tunnel Engineering
Keywords: Corrugated Steel Webs Prestressed concrete Composite continuous girder bridge Construction Analysis Parametric analysis
CLC: U448.213
Type: Master's thesis
Year: 2009
Downloads: 171
Quote: 3
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Abstract


Over the last decade as the emergence of a new structure bridge with corrugated steel webs PC girder bridge with a light weight , prestressed , high efficiency, short construction period, attractive appearance , and many other advantages ; while its unique structure makes structure of the various components of the force certainty and to avoid the traditional web prestressed concrete crack prone Liang Qiaorong shortcomings. Corrugated steel webs PC girder bridge in France, Japan and other countries have been more extensive research and application , since the 1990s , China began to conduct research on this new bridges and engineering practice , and in 2005 built a country first corrugated steel webs PC girder bridge . This paper summarizes analysis of domestic corrugated steel webs PC girder bridge bending , shear buckling force structure based on the performance of research results , for the current domestic and foreign research focused on corrugated steel web shear buckling mode and bridges bending , torsional and flexural capacity of research, technology and structural parameters and the relative lack of studies of the phenomenon , expand the following two aspects of research, including : PC corrugated steel webs span continuous bridge construction process combined force structure , deformation behavior characteristics analysis ; beam process sequence in vitro , in vivo and in vitro beams prestressed proportion arrangement of other factors on the corrugated steel webs PC composite continuous box girder bridge performance. The research work has shown that large-span continuous corrugated steel webs PC composite girder bridge using segmental cantilever construction process, the corrugated steel web shear stress than control points , using segmental cantilever construction technique is feasible ; while maintaining the basic construction process constant, continuous beam side span in vitro beam across closure before or closure post-tensioning , the completed bridge structure creep times force change ; can be adjusted via the side spans vitro beam tension sequence , adjust vitro pre- stress beam and floor beam reinforcement ratio in vivo , in vitro beam linear change its span ratio between the structural parameters can be adjusted by the force of the bridge . This work can be further research and engineering practice reference.

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CLC: > Transportation > Road transport > Bridges and Culverts > All kinds of bridges > Bridge: Structure > Beam bridge > Box girder bridge
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