Bridge tower modeling based on 3D experience platform

2021 ◽  
Author(s):  
YiBoChen
Keyword(s):  
Bridge Tower

Thermal effect of the cable-stayed bridge tower

2003 ◽  
Vol 8 (4) ◽  
pp. 1121-1125 ◽  
Author(s):  
Zhang Hai-long ◽  
Li Jun ◽  
Liu Changguo ◽  
Jiang Tian-hua ◽  
Wei jun
Keyword(s):  
Thermal Effect ◽  
Cable Stayed Bridge ◽  
Bridge Tower

Research on the anti-cracking ability of large composite girder cable- stayed bridge

2019 ◽  
Author(s):  
Yuhao Huang ◽  
Liu Chao ◽  
Xu Dong
Keyword(s):  
Principal Stress ◽  
Bridge Deck ◽  
Design Method ◽  
Concrete Bridge ◽  
Cable Stayed Bridge ◽  
Composite Girder ◽  
Concrete Bridge Deck ◽  
Bottom Slab ◽  
First Time ◽  
Bridge Tower

<p>Recently, composite girder cable-stayed bridge is widely used in the world. Since the existing design method takes less focus on the principal stress of the top and bottom slab, the cracking problem of the concrete bridge deck has not been solved perfectly yet. Based on the spatial grid model, this paper takes Guan He Bridge in Jiangsu province as an example to analyze this kind of structure. Monitoring the principal stress of the concrete bridge deck is proposed for the first time to study the effect of diagonal crack. The principal stress of the concrete deck in the middle span, the quartile span, one-eighth of the span, the side span, the bridge tower, and the auxiliary pier are observed respectively. Comparing the theoretical values with the measured value, the results show that the actual stress state of the whole concrete bridge deck during construction is in accordance with the theoretical calculation. For composite girder cable-stayed bridge, the concrete bridge deck is prone to crack, so it is very significant to control the quality in the construction stage, which can provide a guarantee for the safety and durability of the structure.</p>

scholarly journals Determination of reasonable damage index for suspension bridge tower

2018 ◽  
Vol 439 ◽  
pp. 042067
Author(s):  
Lei Liu ◽  
Tieyi Zhong ◽  
Guangzhi Fu ◽  
Junhua Xiao
Keyword(s):  
Damage Index ◽  
Suspension Bridge ◽  
Bridge Tower

Modeling and Active Vibration Control for Bridge Tower Structures Under Construction

1997 ◽  
Author(s):  
Kazuto Seto ◽  
Fumio Doi ◽  
Mingzhang Ren
Keyword(s):  
Robust Control ◽  
Control Theory ◽  
Active Vibration Control ◽  
Flexible Structures ◽  
Suboptimal Control ◽  
Lumped Mass ◽  
Modes Of Vibration ◽  
Active Vibration ◽  
Under Construction ◽  
Bridge Tower

Abstract For controlling multi-modes of vibration of flexible bridge towers under construction, a lumped mass modeling method and a new method of simple robust control are proposed. Although the robust control theory such as H∞ theory is useful for controlling systems with unknown factors and variable parameters, it is not effective to control multi-modes of vibration of flexible structures. This proposed methods are specified by combining the suboptimal control theory for reducing sensor number and filtering technique for preventing spillover of neglected high modes of vibration. Effectiveness of the method is demonstrated by showing that the first five modes of vibration of a model structure of flexible bridge tower are well controlled without spillover of neglected high modes.

A Novel Modeling Method Based on Multi-Dimensional Taylor Network and its Application in Time Series Prediction

2014 ◽  
Vol 940 ◽  
pp. 480-484 ◽  
Author(s):  
Yi Lin ◽  
Hong Sen Yan ◽  
Bo Zhou
Keyword(s):  
Time Series ◽  
Prior Knowledge ◽  
Dynamic Characteristics ◽  
Prediction Accuracy ◽  
Time Series Prediction ◽  
Nonlinear Time Series ◽  
Modeling Method ◽  
Input Output ◽  
Output Data ◽  
Bridge Tower

A novel modeling method based on multi-dimensional Taylor network is proposed. The structure and the principle of the multi-dimensional Taylor network are introduced. Based on this, the method is applied in the nonlinear time series prediction based on multi-dimensional Taylor network. It provides a new method to predict the time series, which can describe the dynamic characteristics without prior knowledge and can realize the prediction of the nonlinear time series just with input-output data. An example of predicting the stress data of a large span bridge tower induced by strong typhoon is taken at last in this paper. Results indicate the validity and the better prediction accuracy of this method in nonlinear time series prediction.

Experimental Research on Steel-High Performance Concrete Composite Bridge Towers and Piers

2011 ◽  
Vol 255-260 ◽  
pp. 1303-1306
Author(s):  
Chun Sheng Wang ◽  
Xin Xin Wang ◽  
Qian Wang
Keyword(s):  
Mechanical Properties ◽  
Bearing Capacity ◽  
High Performance ◽  
High Performance Concrete ◽  
Ultimate Bearing Capacity ◽  
Bridge Engineering ◽  
Good Prospect ◽  
Compression Tests ◽  
Composite Bridge ◽  
Bridge Tower

Steel-concrete composite bridge towers have the advantages of steel and concrete, they have a good prospect in bridge engineering. However, the applications and related researches of composite bridge towers in China are rare. Therefore, in this article, two types of steel-high performance concrete composite bridge tower and pier models, which had none and one row of longitudinal stud connectors, were designed. The axial compression tests were practiced on the two specimens, in order to study the influence of connectors on the mechanical properties of the composite bridge towers and piers. From the tests, the ultimate bearing capacity and failure mode were obtained, and the regularities of strains and deformations were also analyzed. The results show that setting up stud connectors on the composite towers and piers can improve the ductility and the ultimate bearing capacity obviously.

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