Multi-modal performance-based seismic design method based on performance level

A seismic design and multi-modal technology, applied in design optimization/simulation, computer-aided design, calculation, etc., can solve problems such as ambiguity in correlation and inability to grasp the degree of engineering damage

Active Publication Date: 2019-12-17
QINGDAO TECHNOLOGICAL UNIVERSITY
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Problems solved by technology

The anti-seismic design is carried out by using the anti-intensity (earthquake parameters), because the correlation between the fortification intensity (earthquake parameters) and the final damage state is fuzzy. grasp

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  • Multi-modal performance-based seismic design method based on performance level
  • Multi-modal performance-based seismic design method based on performance level
  • Multi-modal performance-based seismic design method based on performance level

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Embodiment Construction

[0023] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0024] The multi-mode performance-based seismic design method based on the performance level of the present invention includes the following steps,

[0025] S1. Set the seismic performance level of the designed structure according to the seismic code and in combination with actual needs;

[0026] The level of seismic performance of a structure refers to the maximum damage that a structure may achieve under a certain fortification earthquake.

[0027] The performance level index includes force, displacement, deformation, strain, ductility, energy and curvature. In this embodiment, the displacement is selected, and the displa...

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Abstract

The invention relates to the technical field of aseismic design, and particularly to a performance-based multi-modal aseismic-design method based on a performance level. The method is a method of directly carrying out aseismic design on the basis of the quantified performance level, the aseismic-design method based on the performance level uses final damage status as a basis of aseismic design, and thus aseismic performance of a structure can be controlled regardless of whether an earthquake exceeding fortification intensity (ground motion parameter) occurs. Obviously, the method of the application is more scientific than performance-based traditional aseismic design based on the fortification intensity (ground motion parameter), and can control aseismic behaviors of the structure.

Description

technical field [0001] The invention relates to the technical field of anti-seismic design, in particular to a multi-mode performance-based anti-seismic design method based on performance levels. Background technique [0002] China's seismic code (GB 50011-2016) conducts seismic design based on seismic intensity (earthquake motion parameters). The earthquake intensities with 50-year exceeding probability of 10%, 63% and 2% are respectively small earthquake, moderate earthquake and large earthquake intensity, and fortification according to three levels: that is, small earthquake is not damaged, moderate earthquake can be repaired, and large earthquake can not collapse. A two-stage method is adopted, the first stage is elastic design, and the second stage is elastic-plastic design: the first stage is elastic design under the action of small earthquakes, based on the two-dimensional elastic seismic response spectrum, using mode decomposition method or bottom shear force Calcul...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50E04H9/02
CPCE04H9/02G06F30/13G06F30/20G06F2119/06
Inventor 刘文锋
Owner QINGDAO TECHNOLOGICAL UNIVERSITY
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