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.

The Linear Monitoring Analysis of PC Continuous Beam Bridge

2014 ◽  
Vol 644-650 ◽  
pp. 4987-4990
Author(s):  
Ya Xun Yang ◽  
Gao Gong
Keyword(s):  
Prestressed Concrete ◽  
Continuous Beam ◽  
Monitoring Method ◽  
Box Girder ◽  
Construction Monitoring ◽  
Continuous Beam Bridge ◽  
Test Technology ◽  
Deflection Test ◽  
Girder Bridge ◽  
Beam Bridge

According to the structure and construction characteristics of prestressed concrete (PC) continuous beam bridge and combined with the construction monitoring method of continuous beam bridge, this paper introduces the girder deflection test technology and method of prestressed concrete continuous box girder bridge, also analyzes the various factors which affect the linear monitoring. And draw the conclusion through the analysis of the deflection and linear monitoring of LinGang big bridge.

The Stress Monitoring Analysis of PC Continuous Beam Bridge

2014 ◽  
Vol 644-650 ◽  
pp. 895-898
Author(s):  
Ya Xun Yang ◽  
Wei Ya Fan
Keyword(s):  
Prestressed Concrete ◽  
Stress Test ◽  
Continuous Beam ◽  
Stress Monitoring ◽  
Monitoring Method ◽  
Box Girder ◽  
Construction Monitoring ◽  
Continuous Beam Bridge ◽  
Girder Bridge ◽  
Beam Bridge

According to the structure and construction characteristics of PC continuous beam bridge and combined with the construction monitoring method of continuous beam bridge, this paper introduces the girder stress strain test technology and method of prestressed concrete continuous box girder bridge, also analyzes the various factors which affect the stress test. After monitoring LinGang big bridge, draw the conclusion through the analysis of its stress and strain.

Construction of Fo Zhao Gui Dan Intercity Bridge Project in Guang Zhou

2014 ◽  
Vol 915-916 ◽  
pp. 133-136
Author(s):  
Xiang Hong Zhu ◽  
Zeng Bin Jiang
Keyword(s):  
Prestressed Concrete ◽  
Construction Method ◽  
Highway Bridge ◽  
Continuous Beam ◽  
Continuous Beam Bridge ◽  
Beam Bridge ◽  
The City

Construction of Fozhao intercity bridge in Guangzhou was a three-span prestressed concrete continuous beam bridge. The bridge adopted triangle hanging basket cantilever pouring construction method. The bridge mixed cable-stayed spans, H form tower and typical highway bridge elements. It spaned across the exiting transport hubs center, with modern and ethereal shape, and became a new landmark of the city.

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.

An Adjusting Method for the Suspender Force of Continuous Beam Arch Combination Bridge Based on Influence Matrix

2013 ◽  
Vol 275-277 ◽  
pp. 1082-1085 ◽  
Author(s):  
Han Bing Liu ◽  
Long Lin Wang ◽  
Guo Jin Tan ◽  
Yong Chun Cheng
Keyword(s):  
Numerical Simulation ◽  
Finite Element ◽  
Numerical Model ◽  
Iterative Algorithm ◽  
Prestressed Concrete ◽  
Continuous Beam ◽  
Influence Matrix ◽  
Box Beam ◽  
Beam Bridge ◽  
Composite Box Beam

Based on a project of a 22+55+22m continuous composite box beam bridge made of prestressed Concrete, using influence matrix, Numerical Simulation and Iterative Algorithm, an adjusting method for suspender force of continuous beam arch combination bridge has been proposed. It uses Finite Element Numerical Model to calculate the influence matrix and Iterative Algorithm to calculate the suspender force. When rely on this project, the error could be under 0.05% through finite iterative algorithm. And the feasibility has been tested in the completed bridge. It turns out that the error of the measured suspender force of the completed bridge is smaller than that in the design.

Seismic Behaviors of Prestressed Concrete Continuous-Beam Bridge Affected by Pile-Soil Action

2013 ◽  
Vol 353-356 ◽  
pp. 2239-2242
Author(s):  
Feng Lan Li ◽  
Chen Xiao Song ◽  
Shi Ming Liu
Keyword(s):  
Prestressed Concrete ◽  
Response Spectrum ◽  
Central Line ◽  
Seismic Action ◽  
Continuous Beam ◽  
Continuous Beam Bridge ◽  
North Water ◽  
Internal Forces ◽  
Seismic Behaviors ◽  
Beam Bridge

Combined with the typical prestressed concrete continuous-beam bridge with 17m+28m+17m span over the main channel of the Central Line of South-to-north Water Transfer Project, two finite element models of this bridge, one considering and another without considering the pile-soil action, were built by the specialist bridge analysis software MIDAS/Civil 2011. The main vibration mode and its frequency were calculated by the self-vibration analysis, and the seismic response of the bridge was given out by the SRSS method of response spectrum method. Based on the calculations, the effect of pile-soil action on the dynamic characteristics and seismic behaviors of the bridge was studied. The results show that the pile-soil action brought the bridge structure into flexible, which led to the smaller vibration frequency but had no influence on the top two vibration modes. It also led to the larger displacement at top of piers and midspan of continuous-beam and the smaller internal forces of brake pear under the seismic action.

Characteristics of Force Transmission of the Junction for Steel-Prestressed Concrete Composite Continuous Beam Bridges

2013 ◽  
Vol 361-363 ◽  
pp. 1288-1292
Author(s):  
Dong Jia Yin ◽  
Xiong Jun He ◽  
Qiao Lian Huang
Keyword(s):  
Prestressed Concrete ◽  
Concrete Beam ◽  
Bending Moment ◽  
Continuous Beam ◽  
Force Transmission ◽  
The Finite Element Method ◽  
Continuous Beam Bridge ◽  
Bridge Structures ◽  
New Type ◽  
Beam Bridge

A steel-prestressed concrete composite continuous beam bridge is one of new type navigational bridge structures with economic and clear mechanic behaviors. The junction of steel and concrete beam is the critical part, which makes the two different materials to be continuous structural system and transfer different kinds of loads reasonably. This article takes the Chang Bridge which locates on G318 state road in Changxing County, Zhejiang Province as the background to analyze the characteristics of transferring bending moment in the junction by the finite element method. The results show that the junction of steel and concrete designed can transfer loads smoothly. Therefore, the junction can be further researched for extensive application.

Development and Construction Techniques of Foreign PC Continuous Beam

2013 ◽  
Vol 671-674 ◽  
pp. 1729-1731
Author(s):  
De Yu Huang
Keyword(s):  
Prestressed Concrete ◽  
Technology Development ◽  
Development Trend ◽  
Construction Technology ◽  
Continuous Beam ◽  
Bridge Construction ◽  
Engineering Project ◽  
Long Span Bridges ◽  
Continuous Beam Bridge ◽  
Made In China

In construction of medium span, small span and commonly long span bridges, the prestressed concrete continuous beams are playing an important role and the vistas of development of the bridges is vast. The design , construction and new material application remain to be further improved, through great achievements has been made in China in the construction of the PC continuous beam bridges, the global techniques of the bridges in the country in the recent several decades. Through the study of prestressed concrete continuous beam bridge construction technology development trend and research, understand the international bridge of advanced design concepts and construction technology of foreign engineering project bidding, formulates the reasonable construction plan, strengthen the domestic enterprises to expand overseas bridge construction market competitive force, and provide useful reference.

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