Test and Analysis of Dynamic Characteristics of Reinforced Concrete Arch Bridge

2014 ◽  
Vol 599-601 ◽  
pp. 1081-1084
Author(s):  
Jia Lin Xu ◽  
Yong Liang Zhang

The development and application of the reinforced concrete arch bridge has been several decades in China. However, the research on arch bridge is relatively slow in recent years, due to the limit of arch bridge’s dependence on geological conditions , the characteristics of its structure and construction technology . Especially ,many reinforced concrete arch bridges which were built after 1940s has been subjected to earthquake, flood or beyond design life. And there is lack of some corresponding researchs on assessment criteria. This paper aims to put forward some state evaluation methods and suggestions by the test and analysis of dynamic characteristics of reinforced concrete arch bridge. Keywords: reinforced concrete arch bridge; state evaluation; dynamic test; modal analysis

2021 ◽  
Vol 5 (6) ◽  
pp. 67-71
Author(s):  
Zhongyu Wang

Bridge construction has received a lot of attention as transportation continues to improve. Reinforced concrete linked arch bridges are a common bridge style in today’s bridge construction. This type of bridge not only has a basic and generous shape, but it is also incredibly easy to construct, resulting in significant material and construction cost savings. This article analyzes the construction technology of a reinforced concrete linked arch bridge in order to achieve good construction and application. It is hoped that this analysis can provide a scientific reference for the guarantee of the construction quality and subsequent application effect of this kind of bridge.


2012 ◽  
Vol 256-259 ◽  
pp. 1496-1502 ◽  
Author(s):  
Da Lin Hu ◽  
Tian Qi Qu ◽  
Hong Bin Wang ◽  
Long Gang Chen

There are few researches on seismic response of reinforced concrete rib arch bridges at present; therefore, it is necessary to analyze seismic performance of this kind of bridges. Based on the engineering background of a three-span reinforced concrete rib arch bridge, a full bridge finite element model is built to analyze the structural dynamic characteristic and seismic response of the bridge. The internal forces and displacements of each key section is compared and discussed when the bridge is excited by horizontal unidirectional ground motion or the combination of vertical and horizontal ground motion. The structural seismic response calculated with different analysis methods is compared. The research results of this study can be used as a reference for the seismic design of similar bridges.


Author(s):  
Azer A. Kasimzade ◽  
Sertaç Tuhta ◽  
Furkan Günday ◽  
Hakan Aydın

Operational Modal Analysis (OMA) is a one of the most popular method to extract the dynamic characteristics from ambient vibration response signals. In this study, the dynamic characteristics of a model of steel arch bridge with a bolt connection constructed in a 6.10 m span and 1.88 m height laboratory were determined by finite element method and operational modal analysis methods. Firstly, finite element model was created in SAP2000 software of model steel system and dynamic characteristic were obtained numerically. Then, accelerometers were placed where the displacements are high on points of the system and dynamic characteristics were determined by operational modal analysis method. The aim of this study is to obtain the dynamic parameters (frequency, damping ratio, mode shapes) of the model of the steel arch bridge accurately and reliably by operational modal analysis method by making use of ambient vibrations in the laboratory conditions. For this purpose, analytical analysis of the model of the steel arch bridge with finite element method and the dynamic parameters obtained as a result of the operational modal analysis of the model steel arch bridge were compared. Also, the modal assurance criterion (MAC) was used. Good compatibility was recognized between the results obtained for experimental and numerical procedures in terms of both the natural frequency and the mode of vibration. At the end of this study, reasonable correlation is obtained between mode shapes, frequencies and damping ratios. Analytical and Operational modal frequencies differences between 0.139 %–7.170 %.


2015 ◽  
Vol 648 ◽  
pp. 72-79
Author(s):  
Hang Sun ◽  
Da Peng Chen ◽  
Ying Ping Wu

As more and more arch bridges built with the construction method of cantilever erection, the strength and entirety of the bridge shall worry the designers. This paper studies an arch bridge with a 65-meter span, gives the static loading test plan and the dynamic test plan, analyzes the testing data of the displacement and strain, explains the methods of static and dynamic load test in detail, and gives a conclusion about the bearing capacity and dynamic properties of bridge. This can be referred by the similar bridge.


1994 ◽  
Vol 10 (2) ◽  
pp. 319-331 ◽  
Author(s):  
John F. Bonacci

This paper explores the development of a method that is useful for design of reinforced concrete (RC) frame structures to resist earthquakes. The substitute structure method, originally proposed in the 1970s, makes an analogy between viscously damped linear and hysteretic response for the purpose of estimating maximum displacement. The evolution of the method is retraced in order to emphasize its unique reliance on experimental results, which are needed to establish rules for assignment of substitute linear properties. Recent dynamic test results are used to extend significantly the calibration of the method, which furnishes design loads on the basis of drift and damage control.


2007 ◽  
Vol 340-341 ◽  
pp. 223-228
Author(s):  
Ying Fang Fan ◽  
Zhi Qiang Hu ◽  
Jing Zhou

The structural behavior of an old six-span reinforced concrete arch bridge, which has been in service for about 40 years, is investigated. Field monitoring (inclusive of test of material property, static and dynamic test of the bridge) was conducted, static and dynamic responses of the bridge are obtained. Based on the primitive bridge, a scaled one-span bridge model was fabricated by organic-glasses. Both the static and dynamic tests were executed on the bridge model in the laboratory. Since the arch rib is the crucial member for the arch bridge, 7 notches were cut on both arch ribs of the bridge model to simulate different damages of the arch rib. Mechanical responses of the bridge with different damages on the arch ribs were achieved. FEM analyses were preformed on the bridge as well. Numerical results show good agreement with the experimental results.


1995 ◽  
Vol 28 (6) ◽  
pp. 377-386 ◽  
Author(s):  
D.M. Armstrong ◽  
A. Sibbald ◽  
C.A. Fairfield ◽  
M.C. Forde

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