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Selection method for inputting earthquake waves in time-procedure analysis for earthquake resistance of complex structures

A technology for complex structure and time-history analysis, applied in seismic signal processing and other fields

Inactive Publication Date: 2013-10-23
DALIAN MARITIME UNIVERSITY
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a method for selecting input seismic waves for seismic time-history analysis of complex structures that introduces the influence of high mode shapes

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  • Selection method for inputting earthquake waves in time-procedure analysis for earthquake resistance of complex structures
  • Selection method for inputting earthquake waves in time-procedure analysis for earthquake resistance of complex structures
  • Selection method for inputting earthquake waves in time-procedure analysis for earthquake resistance of complex structures

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Embodiment Construction

[0051] Selection method of input seismic wave for seismic time history analysis of complex structures:

[0052] Step 1: Based on the US PEER strong earthquake record database, select alternative seismic waves that meet the different site conditions of magnitude, distance, acceleration peak value and long-period characteristics, and form a small strong earthquake database for engineering seismic analysis;

[0053] A small strong earthquake database for engineering seismic analysis. The database is selected from the public PEER database in the United States. The selection principles are as follows:

[0054] In the US PEER strong motion record database, candidate seismic waves that meet different site conditions of magnitude, distance, peak acceleration and long-period characteristics are selected to form a primary selection database. The principles for selecting seismic waves in the database are as follows: (1) The earthquake magnitude (Ms) is above 6; (2) The epicentral distanc...

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Abstract

The invention discloses a selection method for inputting earthquake waves in time-procedure analysis for earthquake resistance of complex structures to meet the earthquake-resistant requirements of the complex structures such as a high-pier long-span girder bridge, a cable-stayed bridge, a suspension bridge and a super high-rise building. The method comprises the steps that firstly, alternative earthquake waves which meet different site conditions such as earthquake magnitude, distance, an acceleration peak value and long cycle characteristics are selected in an American PEER strong earthquake record database, and a primary-selection database is formed; secondly, the minimum relative weighted average error of spectrum values of alternative earthquake wave response spectrums and design response spectrums in the primary-selection database near previous orders of periodic points of platforms stages and the complex structures is used as a double-control index according to site conditions, and the specific input earthquake waves are determined to meet the requirement that a time-procedure analysis result is in accordance with response spectrum analysis analytic statistics. According to the selection method, engineering realization is easy to achieve, and the method is compared with multiple mode decomposition reaction spectrum methods. In addition, due to the fact that the earthquake waves are selected in the appointed primary-selection database, similar classification of the site conditions is ensured, and the quality of input earthquake waves is ensured.

Description

technical field [0001] The invention relates to a method for selecting input seismic waves for seismic time-history analysis of complex structures. Background technique [0002] Yang Pu et al. (Yang Pu, Li Yingmin, Lai Ming. Structural time-history analysis method input seismic wave selection control index [J]. Chinese Journal of Civil Engineering, 2000, 33 (6): 33-37) proposed a method for structural time-history The analyzed dual-band control wave selection method only considers the influence of the response spectrum plateau and the fundamental period of the structure. [0003] Qu Zhe and Ye Lieping (Qu Zhe, Ye Lieping, Pan Peng. A comparative study on the selection methods of ground motion records in elastic-plastic time-history analysis of building structures [J]. Chinese Journal of Civil Engineering, 2011, 44 (7): 10-21) The selection methods of input seismic waves for time history analysis of building structures at home and abroad are summarized and compared, includin...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V1/28
Inventor 王东升岳茂光李晓莉孙治国石岩
Owner DALIAN MARITIME UNIVERSITY
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