Monitoring and control technology in cantilever construction of continuous beam bridge

2011 ◽  
Author(s):  
Baofeng Pan ◽  
Gang Li
Keyword(s):  
Control Technology ◽  
Continuous Beam ◽  
Monitoring And Control ◽  
Continuous Beam Bridge ◽  
Cantilever Construction ◽  
Beam Bridge ◽  
And Control

Application of SCGM(1,1) Method in the Construction Monitoring and Control of Continuous Girder Bridges

2012 ◽  
Vol 178-181 ◽  
pp. 2113-2116
Author(s):  
Bao Fu Duan ◽  
Cheng Bo Zhai ◽  
Xian He Weng
Keyword(s):  
Cross Sections ◽  
Construction Control ◽  
Continuous Beam ◽  
Grey Prediction ◽  
Monitoring And Control ◽  
Girder Bridges ◽  
Continuous Beam Bridge ◽  
Control Section ◽  
Beam Bridge ◽  
And Control

This paper bases on building grey prediction model with the stress sequence of continuous beam bridge construction control section, discusses the application of the model in the construction control of the continuous beam bridge. SCGM (1, 1) dynamic model is based on test results of control cross-sections of Nanhe Bridge have been established for prediction, on the background of the construction of Nanhe Bridge, in Jiangsu province. The example shows that the prediction precision and adaptability of the model can achieve the requirements of the engineering construction, and the feasibility and adaptability of the construction control for bridge by using this model is validated to forecast the stress value in the practical construction control for a PC continuous bridge.

Influence of Construction Procedures on the Liner and Stress of a PC Continuous Beam Bridge

2010 ◽  
Vol 121-122 ◽  
pp. 162-167
Author(s):  
Hu Cheng ◽  
Guo Xuan
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Test Data ◽  
Significant Influence ◽  
Continuous Beam ◽  
Element Analysis ◽  
Continuous Beam Bridge ◽  
Cantilever Construction ◽  
Beam Bridge

During the construction of a bridge, the construction procedures may change from the originally designed procedures due to some reasons like the weather. In this paper, the influence of construction procedures on the liner and stress is investigated for a prestressed continuous beam bridge with three spans. Finite element analysis indicated that construction procedures have great impact on the liner control and they affect the middle span and side span differently. Although different sets of construction procedures cause different stress at corresponding construction stages after the cantilever construction is finished, they have no significant influence on the stress of the finally built bridge. Test data agreed with finite element analysis. It is thus the influence of construction procedures on bridge liner control should not be neglected.

Construction Monitoring of Prestressed Concrete Continuous Beam Bridge

2014 ◽  
Vol 919-921 ◽  
pp. 308-312
Author(s):  
Cong Qi Li ◽  
Wen Jie Ge ◽  
Da Fu Cao ◽  
Bi Yuan Wang
Keyword(s):  
Prestressed Concrete ◽  
Beam Deflection ◽  
Practical Significance ◽  
Continuous Beam ◽  
Construction Monitoring ◽  
Long Span Bridges ◽  
Box Beam ◽  
Continuous Beam Bridge ◽  
Cantilever Construction ◽  
Beam Bridge

The creep of concrete structure has a prodigious effect on bridge alignments and the stress control during the bridge construction. In the meantime, the problems such as pre-stress losses, bearing asymmetry sink ,the concrete box-beam deflection, box-beam web cracks, structure stress redistributing and so on, which make the bridge structure lose functions or even invalid early when it works. For these reasons, the construction monitor of the deformation and the long-term deflection of long-span bridges with high piers have important practical significance. Construction monitoring of prestressed concrete continuous beam bridge - new Tongyang canal bridge which adopt cantilever construction work is made.

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