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The Calculation and Design of the Longitudinal Undamping Restraint Device

Author: CuiJing
Tutor: LiuJianXin
School: Chang'an University
Course: Bridge and Tunnel Engineering
Keywords: Roads and bridges Limit device Dynamic Analysis Concrete block file
CLC: U442.55
Type: Master's thesis
Year: 2010
Downloads: 70
Quote: 2
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Abstract


Descriptions of the bridge structure earthquake damage , mainly off the beam aspect , and summarize the lessons learned bridge damage ; brief study abroad Falling beam profile and significance of this study and the main content. Domestic limit device generally used only as a structural measure , without calculation and design , under earthquake really difficult to play against falling beam effect . In this paper, undamped longitudinal bridge set to limit device structure of earthquake excitation dynamic analysis . Under Strong Earthquakes structure, limit device can not only play an anti- fall device beam effects, will increase the structural integrity and improve the structure of the anti- push rigidity. The analysis calculated the stopper by the force and effect of anti-drop beam with its stiffness , the initial gap , the variation of site soil , get this example corresponds to the most reasonable limit device parameter, and a bridge for this paper design of concrete stopper .

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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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