Bridge Structure Detection Based on Load Test

2013 ◽  
Vol 438-439 ◽  
pp. 891-893
Author(s):  
Yan Zeng ◽  
Yong Zeng
Keyword(s):  
Working Condition ◽  
Load Test ◽  
Normal Operation ◽  
Bridge Structure ◽  
Continuous Beam ◽  
Loading Method ◽  
Structure Detection ◽  
Continuous Beam Bridge ◽  
Calculation Results ◽  
Beam Bridge

By the detection of a three spans continuous beam bridge, the detection loading method and arrangement of measuring points are discussed, the static and dynamic detection results such as the deflection, stress and inherent vibration frequency are comparative analyzed with those of theoretical calculation. Results show that the bridge is safe under actual working condition, which provides the basis for normal operation and maintenance of the bridge.

Study on the Load Test of Continuous Beam Bridge

2013 ◽  
Vol 405-408 ◽  
pp. 1637-1640
Author(s):  
Zhi Qiang Lu ◽  
Ting Zhang ◽  
Qing Yun Zhao
Keyword(s):  
Detection Method ◽  
Load Test ◽  
Bridge Structure ◽  
Continuous Beam ◽  
Continuous Beam Bridge ◽  
Dynamic Load Test ◽  
Inner Mongolia Autonomous Region ◽  
Beam Bridge ◽  
Simple Narrative

In recent years, we've paid more and more attention to the quality of bridges .So the detection of bridge structure is becoming more and more popular . In this paper we use a conventional continuous beam bridge as an example for the bridge detection method to do a simple narrative .This bridge is a newly completed one from ARongqi to BoKetu in the Inner Mongolia Autonomous Region .It is a continuous beam bridge goes across a provincial highway .We carried out this static and dynamic load test on this bridge, in order to get the information to guide the acceptance of the bridge. In this test we use a large number of professional softwares and equipments. And test this bridge in two different experimental methods to get the basic data acquisition of it as well as the bearing capacity .By analyzing these data to decide the construction quality.

Analysis of Influencing Factors of Welded Turnout Slab with Convex Block of Ballastless Track on Bridge

2011 ◽  
Vol 71-78 ◽  
pp. 1664-1668
Author(s):  
Yuan Xing Hao ◽  
Feng Dai ◽  
Rong Shan Yang
Keyword(s):  
Influencing Factors ◽  
Longitudinal Force ◽  
The Other ◽  
Continuous Beam ◽  
Computation Model ◽  
Temperature Range ◽  
Ballastless Track ◽  
Continuous Beam Bridge ◽  
Calculation Results ◽  
Beam Bridge

To figure out the structure and influencing factors of welded welded turnout slab convex block of ballastless track on bridge, according to the characteristics of force and displacement of welded turnout on bridge, the turnout-bridge-platform integration computation model was established by finite element method. Taking the ballastless turnout on a continuous beam bridge as the example, the longitudinal force and displacement of the bridge and parts of the turnout was obtained by the means of changing the numbers of slab, the stiffness of convex block support and the temperature range of slabs. The calculation results indicate: using three slabs is reasonable for the ballastless turnout on bridge; The stiffness of convex block supports on slabs should be set between 250kN/mm and 300kN/mm; Since the change of longitudinal force is very large, while the other parameters change little, with the change of the temperature range of slabs, slabs in turnout should be strengthen.

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

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 ◽  
Beam Bridge

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.

Evaluation of a Concrete Continuous Beam Bridge Using Load Test

2007 ◽  
Author(s):  
Xiedong Zhang ◽  
Hong Li ◽  
Xiaofan Li ◽  
Musheng Xiang ◽  
Chengwu Shen
Keyword(s):  
Load Test ◽  
Continuous Beam ◽  
Continuous Beam Bridge ◽  
Beam Bridge

Study on Static and Dynamic Load Test of Huaronggou Bridge

2014 ◽  
Vol 587-589 ◽  
pp. 1500-1506
Author(s):  
Wei Wang ◽  
Lei Wang
Keyword(s):  
Dynamic Load ◽  
Load Test ◽  
Stress And Strain ◽  
Bridge Structure ◽  
Element Analysis ◽  
Continuous Beam Bridge ◽  
Dynamic Load Test ◽  
Service Behavior ◽  
Design Requirements ◽  
Beam Bridge

HuaRonggou bridge is a continuous beam bridge, which is built recently in Inner Mongolia. In order to test the service behavior of structures, while the bridge is working in the condition of static and dynamic load, and evaluate whether the construction quality is to meet the design requirements, the static and dynamic load test is carried out. This paper describes the principles and methods of the load test, the measurement of the stress and strain, and dynamic characteristics of the bridge structure. By finite element analysis, it can provide the operation and supervision with benchmark data, and also offer the reference to constructions of the same kind of bridge.

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