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Large-span steel box basket handle arch bridge dynamic characteristics of the high-speed rail and earthquake response analysis

Author: HuDongYang
Tutor: HeXuHui
School: Central South University
Course: Civil Engineering
Keywords: High-speed rail Steel box basket handle arch bridge Self - vibration characteristics Response spectrum analysis Time history analysis Traveling wave effect Earthquake response
CLC: U442.55
Type: Master's thesis
Year: 2011
Downloads: 32
Quote: 0
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Abstract


In recent years , the world's earthquakes occur frequently , seriously endanger people's lives and property safety . Large span steel box basket handle arch bridge as a new bridge type , lateral stiffness , good dynamic performance, sleek , and therefore plays an important role in urban lifeline engineering . However , due to the late development of large-span steel box basket handle arch bridge , its dynamic characteristics and seismic response of the study is relatively small . The the south wide in high-speed railway Zhaoqing Xijiang Bridge engineering background , the response spectrum analysis and time history analysis method of combining the analysis of its dynamic properties and seismic response . This paper completed work includes the following aspects : 1 , In this paper, the extensive collection at home and abroad on the basis of existing research data through the domestic several typical steel box basket handle arch bridge steel box basket handle arch bridge overview of the development and characteristics of ; combination arch bridge vibration theory and earthquake response analysis method , the basket handle arch bridge of steel box dynamic performance and seismic performance of Research , and the impact of large -span steel box basket handle arch bridge seismic response factors . 2, based on the large ANSYS structural analysis to establish common procedures space finite element model , and calculated from the vibration characteristics of Zhaoqing Xijiang Bridge Rib inclination of its natural vibration characteristics , summed up large - span steel box basket handle arch bridge since the vibration characteristics , and pave the way for the further study of its earthquake response . Zhaoqing Xijiang Bridge site conditions , select the appropriate ground motion parameters to determine the response spectra for seismic response analysis , longitudinal bridge of Lateral and vertical three kinds of input methods Zhaoqing Xijiang Bridge response spectrum analysis , and summarizes the characteristics of the seismic response of large span steel box basket handle arch bridge . El-Centro earthquake wave selection adjusted as seismic input , Zhaoqing Xijiang Bridge elastic analysis of vertical ground motion , traveling wave effect and arch rib inclination of its earthquake response .

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CLC: > Transportation > Road transport > Bridges and Culverts > Investigation, design and calculation > Bridge Design > Damage Analysis and Seismic Design
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