Construction Monitoring Technology for Large-Span PC Continuous Box-Girder Bridge with Corrugated Steel Webs

2014 ◽  
Vol 1065-1069 ◽  
pp. 865-869
Author(s):  
Zhao Cai Liu ◽  
Lin Jie Hou ◽  
Can Hua Chang ◽  
Chong Hui Zhou ◽  
Shui Wan
Keyword(s):  
Field Measurements ◽  
Box Girder ◽  
Construction Monitoring ◽  
Large Span ◽  
Element Simulation ◽  
Single Room ◽  
Design Requirements ◽  
Box Girder Bridge ◽  
Girder Bridge ◽  
And Control

Through the construction monitoring of a large-span bridge which is a single box single room PC continuous box-girder bridge with corrugated steel webs, suitable methods are summed up. Finite element simulation was combined with field measurements data to calculate the model elevation of construction. By adjusting and control the model elevation, the linear shape of the bridge met the design requirements. By collecting strain data of the key sections of the bridge, abnormalities that may exist could be detected timely so that early warning could be made and construction safety and quality could be ensured.

Analysis of Loading Test Research on a Steel-Concrete Composite Box Girder Bridge

2013 ◽  
Vol 438-439 ◽  
pp. 908-912
Author(s):  
Zhi Yong Wang ◽  
Qiu Yan Sun ◽  
Du Bo Wang
Keyword(s):  
Loading Test ◽  
Box Girder ◽  
Calculation Results ◽  
Impact Coefficient ◽  
Design Requirements ◽  
Static And Dynamic Tests ◽  
Working Performance ◽  
Box Girder Bridge ◽  
Stress And Deformation ◽  
Girder Bridge

In order to understand the overall mechanical characteristics of a steel-concrete composite box girder bridge, static and dynamic tests were carried out. According to the results of tests and calculations, its bearing capacity and working performance were evaluated. The results show that the stress and deformation at control cross-section of the bridge meet design requirements under the static load, the vibration frequency and impact coefficient consistent with the theoretical calculation results under the dynamic load.

Effects Analysis of Web Cracks on Long-Term Deformation of Large Span Pre-Stressed Concrete Continuous Box Girder Bridge

2010 ◽  
Vol 163-167 ◽  
pp. 1207-1212 ◽  
Author(s):  
Fei Shao ◽  
Da Rong Pan ◽  
Feng Li ◽  
Ya Wen Liu
Keyword(s):  
Sustainable Development ◽  
Common Disease ◽  
Inclined Crack ◽  
Box Girder ◽  
Large Span ◽  
Box Girder Bridge ◽  
Girder Bridge ◽  
The Web ◽  
Inclined Cracks

Excessive deflection and its long-term sustainable development has become a common disease of large span pre-stressed concrete continuous box girder bridge, but the causes of it is difficult to reach consensus. A three-spans continuous pre-stressed concrete box girder bridge is studied in this paper. The web inclined cracks near L/4 of the continuous girder bridge is simulated by FEM (finite element method), in order to explore the influences of web inclined cracks near L/4 on the overall deflection of the bridge and the effect differences of the crack width, length and numbers. The results show that when the web inclined cracks reach a certain level, it will cause a long-term sustainable development of the deflection of the bridge. Therefore, web inclined crack is the main factor that causes the sustainable development of long-term deflection of large span pre-stressed concrete continuous box girder bridges.

Construction Monitoring of Long Span Continuous Rigid Frame Box Girder Bridge

2010 ◽  
Vol 163-167 ◽  
pp. 2715-2722 ◽  
Author(s):  
Guang Yue Wang ◽  
Jian Liu ◽  
Qi Fan
Keyword(s):  
Internal Force ◽  
Construction Technology ◽  
Construction Process ◽  
Stress Monitoring ◽  
Box Girder ◽  
Construction Monitoring ◽  
Long Span ◽  
Rigid Frame ◽  
Box Girder Bridge ◽  
Girder Bridge

The construction of a modern long span rigid frame box girder bridge gives impetus to the development of structural analysis design theory and construction technology. Moreover, it makes construction monitoring of the rigid frame box bridge a significant research subject. Construction monitoring of the rigid frame box bridge signifies regulating the structure’s internal force and alignment in the construction process and completion state, and thence satisfies the designed expectation. Based on the construction monitoring of Liang-Ji Canal Bridge project, the construction process and the designed completion state have been simulated and analyzed at a certain precision level [1]. A plane bar finite element computational model is established, and the alignment and internal force of the bridge in each construction stage are analyzed. Then the simulation analysis of construction process is derived according to its construction characteristics [2]. Through systematical research on the form work elevation and the stress monitoring of the cantilevers during the cast-in-situ construction, the factors which influence deflection and stress are analyzed. The elevation is predicated by the Kalman's filter estimation, the modified grey model and the combination of these two methods. The stress monitoring error and corresponding reasons are analyzed. The measured results show that the combination of the two approaches can improve prediction accuracy. The presented analysis, processing and control methods accumulate many experiences for the design and construction of the long span box girder rigid frame bridge.

Rehabilitation of the Boivre Viaduct - A Multispan Prestressed Box Girder Bridge

PCI Journal ◽  
1986 ◽  
Vol 31 (3) ◽  
pp. 22-47 ◽  
Author(s):  
Charles C. Zollman ◽  
Serge H. Barbaux
Keyword(s):  
Box Girder ◽  
Box Girder Bridge ◽  
Girder Bridge

scholarly journals The Analysis of Thermal Effect on Concrete Box Girder Bridge

2015 ◽  
Vol 111 ◽  
pp. 470-477 ◽  
Author(s):  
Lukáš Krkoška ◽  
Martin Moravčík
Keyword(s):  
Thermal Effect ◽  
Box Girder ◽  
Concrete Box Girder ◽  
Box Girder Bridge ◽  
Girder Bridge
Sign in / Sign up

Export Citation Format

Share Document