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A Deformation-Based Earthquake Cumulative Damage Assessment Method for RC Frame Structures

A frame structure, cumulative damage technology, applied in special data processing applications, instruments, electrical and digital data processing, etc., can solve the problems of not considering the influence of cyclic deformation damage variables, simple models, and large uncertainty of damage variables.

Active Publication Date: 2017-11-10
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the damage assessment models proposed in the past with deformation as a parameter only considered the influence of the maximum deformation on the damage variable, and did not consider the influence of cyclic deformation on the damage variable. The model is too simple and the uncertainty of the damage variable is large.

Method used

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  • A Deformation-Based Earthquake Cumulative Damage Assessment Method for RC Frame Structures
  • A Deformation-Based Earthquake Cumulative Damage Assessment Method for RC Frame Structures
  • A Deformation-Based Earthquake Cumulative Damage Assessment Method for RC Frame Structures

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Effect test

Embodiment 1

[0059] Embodiment 1: as Figure 1-5 As shown, a deformation-based earthquake cumulative damage assessment method for RC frame structures, first establishes the calculation formula of seismic cumulative damage index for RC beams and columns based on deformation, and extracts them from the deformation data or experimental data of RC beams and columns under earthquake action The magnitude of the primary displacement angle and the magnitude of the secondary displacement angle of the beam and column components are used to calculate the limit displacement angle of the component when monotonously loaded; the formula for calculating the seismic cumulative damage index of each layer of the RC frame structure is established to calculate the seismic cumulative damage index of each layer of the RC frame structure; The calculation formula of the overall earthquake cumulative damage index of RC frame structure is established, and the overall earthquake cumulative damage index of RC frame str...

Embodiment 2

[0083] Embodiment 2: as Figure 1-5 As shown, a deformation-based earthquake cumulative damage assessment method for RC frame structures, first establishes the calculation formula of seismic cumulative damage index for RC beams and columns based on deformation, and extracts them from the deformation data or experimental data of RC beams and columns under earthquake action The magnitude of the primary displacement angle and the magnitude of the secondary displacement angle of the beam and column components are used to calculate the limit displacement angle of the component when monotonously loaded; the formula for calculating the seismic cumulative damage index of each layer of the RC frame structure is established to calculate the seismic cumulative damage index of each layer of the RC frame structure; The calculation formula of the overall earthquake cumulative damage index of RC frame structure is established, and the overall earthquake cumulative damage index of RC frame str...

Embodiment 3

[0104] Embodiment 3: as Figure 1-5 As shown, a deformation-based earthquake cumulative damage assessment method for RC frame structures, first establishes the calculation formula of seismic cumulative damage index for RC beams and columns based on deformation, and extracts them from the deformation data or experimental data of RC beams and columns under earthquake action The magnitude of the primary displacement angle and the magnitude of the secondary displacement angle of the beam and column components are used to calculate the limit displacement angle of the component when monotonously loaded; the formula for calculating the seismic cumulative damage index of each layer of the RC frame structure is established to calculate the seismic cumulative damage index of each layer of the RC frame structure; The calculation formula of the overall earthquake cumulative damage index of RC frame structure is established, and the overall earthquake cumulative damage index of RC frame str...

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Abstract

The invention relates to a deformation-based seismic cumulative damage assessment method of an RC frame structure, which belongs to the field of seismic damage assessment of engineering structures. The present invention firstly establishes the calculation formula of earthquake cumulative damage index based on deformation of RC beams and columns, and extracts the main displacement angle amplitude and secondary displacement angle amplitude of beams and columns from the deformation data or experimental data of RC beams and columns under earthquake action , to calculate the limit displacement angle of the component under monotonic loading; establish the calculation formula of the earthquake cumulative damage index of each floor of the RC frame structure, and calculate the earthquake cumulative damage index of each floor of the RC frame structure; establish the calculation formula of the overall earthquake cumulative damage index of the RC frame structure, and calculate the RC frame structure The overall earthquake cumulative damage index of the structure; finally, the local damage assessment and the overall damage assessment are carried out for the RC frame structure. The invention has the characteristics of simplicity, practicability, quickness, accuracy and the like; the overall damage index of the structure can be obtained, and the local damage index of any beam and column member inside the structure can be obtained.

Description

technical field [0001] The invention relates to a deformation-based seismic cumulative damage assessment method of an RC frame structure, which belongs to the field of seismic damage assessment of engineering structures. Background technique [0002] Whether the structure can be repaired after the earthquake occurs, it is necessary to know the degree of earthquake damage of the structure, which is especially important for post-earthquake disaster relief and post-disaster assessment. In my country, due to the implementation of new codes for seismic design of buildings, many high-rise buildings will be equipped with seismic observation systems or seismic experiments, and it is easy to obtain deformation data of structures under earthquakes. Therefore, it is urgent to provide technologies and methods to process these data. In this way, an earthquake damage assessment model is established, and then the damage degree of the structure is evaluated, and technical support is provided...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F19/00
Inventor 张品乐陶忠潘文高军芳
Owner KUNMING UNIV OF SCI & TECH