Load Capacity Analysis for Concrete-Filled-Steel-Tube Arch Bridge

Seismic analysis of concrete-filled steel tube (CFST) arch bridge based on finite element method is a time-consuming work. Especially when uncertainty of material and structural parameters are involved, the computational requirements may exceed the computational power of high performance computers. In this paper, a seismic analysis method of CFST arch bridge based on artificial neural network is presented. The ANN is trained by these seismic damage and corresponding sample parameters based on finite element analysis. In order to obtain more efficient training samples, a uniform design method is used to select sample parameters. By comparing the damage probabilities under different seismic intensities, it is found that the damage probabilities of the neural network method and the finite element method are basically the same. The method based on ANN can save a lot of computing time.

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Research on Mechanical Performance of Concrete-Filled Steel Tube Tied Arch Bridge under Different Suspender Arrangements

10.1061/9780784483565.146 ◽

2021 ◽

Author(s):

Xinke Cao ◽

Xianwu Hao ◽

Teng Xu

Keyword(s):

Mechanical Performance ◽

Steel Tube ◽

Arch Bridge ◽

Concrete Filled Steel Tube ◽

Tied Arch Bridge

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Investigation on the dynamic impact factor of a concrete filled steel tube butterfly arch bridge

Engineering Structures ◽

10.1016/j.engstruct.2021.113614 ◽

2021 ◽

pp. 113614

Author(s):

Shiqiang Qin ◽

Jiacheng Feng ◽

Yun-Lai Zhou ◽

Chao Li ◽

Xuejin Huo ◽

...

Keyword(s):

Impact Factor ◽

Steel Tube ◽

Dynamic Impact ◽

Arch Bridge ◽

Concrete Filled Steel Tube ◽

Dynamic Impact Factor

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Creep Effects on the Reliability of a Concrete-Filled Steel Tube Arch Bridge

Journal of Bridge Engineering ◽

10.1061/(asce)be.1943-5592.0000446 ◽

2013 ◽

Vol 18 (10) ◽

pp. 1095-1104 ◽

Cited By ~ 13

Author(s):

Yi Shuo Ma ◽

Yuan Feng Wang

Keyword(s):

Steel Tube ◽

Arch Bridge ◽

Concrete Filled Steel Tube

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Research on Overall Stability of Concrete-Filled Steel Tubular Bowstring Arch Bridge

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.243-249.1988 ◽

2011 ◽

Vol 243-249 ◽

pp. 1988-1994 ◽

Cited By ~ 2

Author(s):

Zi Lin Li ◽

Pei Yuan Zhou

Keyword(s):

Finite Element ◽

Steel Tube ◽

Construction Process ◽

Ansys Software ◽

Arch Bridge ◽

Concrete Filled Steel Tube ◽

Overall Stability ◽

The Stability ◽

Tied Arch Bridge ◽

Element Theory

Based on the finite element theory, the computational model, one through concrete filled steel tube tied-arch bridge was established under the considerations of both geometrical non-linearity and material non-linearity. And using the ANSYS software to study the bridge's arch rib construction process and the overall stability after the complete construction, the results show that the full-bridge’s stability coefficient are larger than other concrete-filled steel tube arch bridge; the in-plane stiffness is larger than the out-plane stiffness, and the influence of material non-linearity on the stability is notable. The results provide a good reference for the similar bridge's design and construction.

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Creep effects on dynamic behavior of concrete filled steel tube arch bridge

STRUCTURAL ENGINEERING AND MECHANICS ◽

10.12989/sem.2011.37.3.321 ◽

2011 ◽

Vol 37 (3) ◽

pp. 321-330 ◽

Cited By ~ 16

Author(s):

Y.S. Ma ◽

Y.F. Wang ◽

Z.K. Mao

Keyword(s):

Dynamic Behavior ◽

Steel Tube ◽

Arch Bridge ◽

Concrete Filled Steel Tube

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Research on Monitoring and Control for Suspender Cable Tension of Half-Through Concrete Filled Steel Tube Arch Bridge

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.859.131 ◽

2013 ◽

Vol 859 ◽

pp. 131-134

Author(s):

Fu Li Zhao ◽

Yi Qiang Xiang ◽

Qiang Qiang Wu

Keyword(s):

Steel Tube ◽

Calculation Formula ◽

Test Results ◽

Monitoring And Control ◽

Frequency Method ◽

Cable Tension ◽

Arch Bridge ◽

Concrete Filled Steel Tube ◽

Cable Force ◽

Force Calculation

The measurement accuracy of the cable tensions in the hanger rods of concrete filled steel tube arch bridges is important for the correct evaluation of bridges condition. Based on Jinpan Bridge-a half through concrete filled steel tube arch bridge with 80 m span in Tiantai, it was put forward the vibration frequency method for testing and evaluate suspender tensions with the help of analysis vibration characters of the suspender. The precision of cable force calculation formula was verified after comparing the practical tension with the designed tension obtained from tension jack method. Then, according to the test results and values predicted by the presented cable force calculation formula, the cable tensions were adjusted. Cable tension test results in the finished bridge show that this method is feasible.

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