﻿ 岳阳洞庭湖大桥索梁温差效应下的随机形变规律分析研究 Analysis of Random Deformation Law of Yueyang Dongting Lake Bridge under the Cable Girder Effect of Temperature Difference

Hans Journal of Civil Engineering
Vol. 07  No. 05 ( 2018 ), Article ID: 26832 , 5 pages
10.12677/HJCE.2018.75087

Analysis of Random Deformation Law of Yueyang Dongting Lake Bridge under the Cable Girder Effect of Temperature Difference

Yuanting Li1, Qiao Wen2, Cong Liu2

1China Transport Telecommunications & Information Center, Beijing

2School of Architecture Engineering, Shandong University of Technology, Zibo Shandong

Received: Aug. 24th, 2018; accepted: Sep. 10th, 2018; published: Sep. 17th, 2018

ABSTRACT

In the random factors of different structural loads, temperature is the most important factor affecting the deformation of bridges. The temperature difference effect of cable beam (tower) is one of the temperature effects of cable-stayed bridges. The internal cause of temperature difference between cable and beam is the difference of material composition and geometry between cable and beam, and the external cause is the influence of sunshine. Taking Yueyang Dongting Lake Bridge as an example, this paper analyzes the deformation law of the main girder and the middle tower of Yueyang Dongting Lake Bridge under different temperature.

Keywords:Cable-Stayed Bridge, Cable Girder Temperature Difference, Bridge Deformation

1中国交通通信信息中心，北京

2山东理工大学建筑工程学院，山东 淄博

1. 引言

2. 温度传感器布设

3. 索梁温差效应下桥梁随机形变规律分析

Figure 1. Schematic diagram of cable-stayed thermometer layout

Table 1. Length of thermometer wiring (estimated)

Figure 2. Simulation results of vertical displacement of girder under temperature difference effect of cable beam

Figure 3. Simulation results of tower top displacement under temperature difference effect of cable beam

Figure 4. Spatial statistics of deformation rate of Dongting Lake Bridge

4. 小结

Analysis of Random Deformation Law of Yueyang Dongting Lake Bridge under the Cable Girder Effect of Temperature Difference[J]. 土木工程, 2018, 07(05): 734-738. https://doi.org/10.12677/HJCE.2018.75087

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