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Bridge seismic design of the importance of the correction factor

Author: QiDongYan
Tutor: LiuJianXin
School: Chang'an University
Course: Bridge and Tunnel Engineering
Keywords: Fortification goal Fortification levels Ground motion parameters Importance of the correction factor Strength reduction factor Ductility design
CLC: U442.55
Type: Master's thesis
Year: 2005
Downloads: 210
Quote: 10
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Abstract


The paper describes the seismic fortification goal in the seismic design of the national industry , fortification levels , the importance of classification and seismic design method , some of the problems that exist in China 's \the degree of re- classification, the China bridge seismic design should adopt a multi-stage multi- level security design . On this basis , the importance of standardized correction factor to adjust and to study the rules bridge ductility design method . Reference to the relevant literature , design reference period seismic standards in China , the earthquake intensity , the level of the ground peak acceleration correction parameters and reference seismic hazard analysis method gives the conversion relationship between seismic intensity and peak ground acceleration , and then use probability analysis method gives the probability of exceedance of the design basis of the importance of the correction factor by various fortification levels . Ductility significance bridge ductility types in China are classified , and displacement ductility factor related indicators to compare and determine , given the specific expression of the strength reduction factor , thus giving the bridge ductility design method . Given Earthquake Engineering multi-level fortification multiple design example , in the example of a real bridge seismic analysis and seismic forces calculated on the basis of a comparative analysis of highway engineering seismic design specification \turn the highway engineering seismic design specification \The importance of the correction factor amendments to the seismic design method is more detailed and scientific in China , showing the superiority of the elastic ductility design of multi-stage multi-level fortification .

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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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