Static Reliability Analysis of Prestressed Concrete V - Shaped Continuous Beam Bridge

10.4028/www.scientific.net/amr.915-916.133 ◽

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.

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

10.4028/www.scientific.net/amm.353-356.2239 ◽

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 ◽

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

10.4028/www.scientific.net/amm.361-363.1288 ◽

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 ◽

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.

Research on Prestressed Loss in Curving Hole of Prestressed Concrete Structure Caused by Frictional Resistance

10.4028/www.scientific.net/amm.587-589.1668 ◽

2014 ◽

Vol 587-589 ◽

pp. 1668-1671 ◽

Cited By ~ 2

Author(s):

Chen Li ◽

Kai Yin Zhang ◽

Zhong Lin Fan

Keyword(s):

Friction Coefficient ◽

Prestressed Concrete ◽

Frictional Resistance ◽

Continuous Beam ◽

Continuous Rigid Frame Bridge ◽

Continuous Beam Bridge ◽

Rigid Frame ◽

Different Types ◽

Beam Bridge ◽

Rigid Frame Bridge

Excessive prestressed loss in prestressed concrete continuous beam bridge and continuous rigid frame bridge causes structures appearing different types of diseases. By theoretical analysis on computational expression of effective prestress in curving hole, and distribution of contact stress and experiment about prestressed loss caused by frictional resistance, this paper points out the disadvantages of current effective prestress formula in curving hole. According to the research on the major influencing factors of prestressed loss in curving hole-contact status and friction coefficient μ, it plays a remarkable role on the further analysis of prestressed loss in curving hole.

Construction Monitoring of Prestressed Concrete Continuous Beam Bridge

10.4028/www.scientific.net/amr.919-921.308 ◽

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 ◽

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

10.4028/www.scientific.net/amm.644-650.4987 ◽

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 ◽

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.

Study on Internal Force Effect of a High-Speed Rail (40+56+40) m Prestressed Concrete Continuous Beam Bridge

10.4028/www.scientific.net/amr.859.228 ◽

2013 ◽

Vol 859 ◽

pp. 228-232 ◽

Cited By ~ 1

Author(s):

Yong Ming Zhao

Keyword(s):

Prestressed Concrete ◽

High Speed ◽

Design Theory ◽

Variable Cross ◽

Construction Technology ◽

Continuous Beam ◽

High Speed Rail ◽

Double Line ◽

Continuous Beam Bridge ◽

The continuous beam bridge is a kind of bridge type used widely on the project. With the design theory and construction technology, prestressed concrete continuous beam bridge shown strong vitality. This design is a high-speed rail (40+56+40) m prestressed concrete continuous beam bridge design, whose width is 12.2m and its maximum Design speed is 300km/h. The form of the railway is double line which is 4.8m far away, and the cross-sectional slope is 2%.ZK load was applied on the bridge. A three-span P.C continuous Beam structure with variable cross-section is used in this bridge. The girder body adopts single cell and single box, the height of beam takes quadratic parabola relation, which is 5m high at the middle fulcrum, while at the side fulcrum and the mid-span is 2.5m. The design uses Midas/Civil to establish the finite element model that is reasonable and simple, analyzing the structure behavior of the girder body under loading, especially the internal forces of bridge structure under dead load, live load and additional force.

Research of the Vibration Signal for the Bridge Structure Base on Stochastic Minus Method

10.4028/www.scientific.net/amr.712-715.1659 ◽

2013 ◽

Vol 712-715 ◽

pp. 1659-1661

Author(s):

Yan Hui Zhang ◽

Zeng Hua Lin ◽

Jian Qiang Li

Keyword(s):

Computer Simulation ◽

Prestressed Concrete ◽

Vibration Signal ◽

Seismic Excitation ◽

Bridge Structure ◽

Continuous Beam ◽

Continuous Beam Bridge ◽

Bridge Structures ◽

Environmental Vibration ◽

With the Stochastic Minus method to get the vibration signal of bridge structure based on seismic excitation. Meanwhile, in order to verify the validity of the method, we make a computer simulation to a prestressed concrete continuous beam bridge. And we point out that the method is suitable to monitor the bridge structures based on environmental vibration.

The Stress Monitoring Analysis of PC Continuous Beam Bridge

10.4028/www.scientific.net/amm.644-650.895 ◽

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 ◽

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.

Design and Analysis of Parameter Sensitivity of Prestressed Concrete Continuous Beam Bridge Inconstruction Control

10.4028/www.scientific.net/amm.638-640.1063 ◽

2014 ◽

Vol 638-640 ◽

pp. 1063-1066

Author(s):

Long Sheng Bao ◽

Tao Song ◽

Ling Yu

Keyword(s):

Sensitivity Analysis ◽

Cross Section ◽

Prestressed Concrete ◽

Stress Sensitivity ◽

Design Parameters ◽

Construction Control ◽

Calculation Error ◽

Continuous Beam ◽

Continuous Beam Bridge ◽

During the construction control in order to better control the elevation, the need for sensitivity analysis of the design parameters, the sensitivity analysis of design parameter adjustment principle, so as to adjust the measured deflection and deflection calculation error of judgment, and for the cross section should be the main design parameters of stress sensitivity. This method can identify accurately fast parameter error during the bridge construction, and ensure the smooth and long construction Liang Qiao. To provide reference for construction control of this kind of bridge deflection.