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Analysis on Seismic Dynamic Response of the Anchor-bar and Surrounding Rock-soil System

Author: JiaBin
Tutor: YinKe
School: Chongqing University
Course: Geotechnical Engineering
Keywords: Anchor Dynamic Model Earthquake Dynamic parameters Dynamic Response
CLC: TU435
Type: Master's thesis
Year: 2010
Downloads: 107
Quote: 0
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Abstract


Southwest regions due to the unique geographical terrain and a variety of construction needs , often need to be implemented on many high slope engineering support reinforcement . The Bolting structure with its unique superiority in all walks of life are widely used in engineering construction . Especially in recent years , with the rapid development of transportation construction in the southwest region , bolting structure High Slope in the road and rail in the anchoring effect . 5.12 Wenchuan earthquake exposed the deficiencies and problems bolting structures in seismic design , structural design and construction of earthquake-prone areas or high vibration areas Bolting damage phenomena show that does not take full account of the earthquake dynamics Rats. Therefore it is necessary to earthquake bolting the seismic response mechanism for analysis and research to provide some reference and guidance bolting slope seismic fortification . The process of this paper is constituted by four main aspects : First, the establishment of the bolt the geotechnical body system dynamics analysis model , simplify earthquake geotechnical body for the role of anchor line springs and dampers and speed , the panel of anchor the inertial force to simplify the role of a linear spring to be analyzed. Thereby establishing the resonant power of the anchor system equilibrium equations , and solving the analytical solution of the steady-state harmonic dynamic loads dynamic response . Secondly , by this calculation model of large-scale finite element analysis software ANSYS was validated . Then, the anchor geotechnical body system parameters impact analysis , summarized the main parameters of the model on the bolt the geotechnical body system axis force peak response . Finally, the theoretical analysis and numerical simulation results to a new understanding of the earthquake bolting slope failure mechanism .

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CLC: > Industrial Technology > Building Science > Soil mechanics,foundation engineering > Soil Mechanics > Soil Dynamics and Vibration foundation
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