A vertical earthquake action evaluation method based on random effect method
By establishing a V/H spectral value model based on the random effects method in the southwest region, the problem of inaccurate vertical seismic action assessment in this region using existing technologies has been solved, achieving efficient and accurate vertical seismic action assessment, which is applicable to seismic hazard analysis.
CN116643309BActive Publication Date: 2026-04-14SOUTHWEST JIAOTONG UNIV
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Patent Information
- Application Number
- CN202310515201.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-05-09
- Publication Date
- 2026-04-14
- Estimated Expiration
- 2043-05-09
AI Technical Summary
Technical Problem
Existing methods for assessing vertical seismic action are not applicable to southwestern my country, and there is a lack of V/H spectral value models suitable for this region, resulting in inaccurate assessments of vertical seismic action.
Method used
Using the random effects method, a V/H spectral value model applicable to Southwest China was established with moment magnitude, fault type, site conditions, distance, and focal depth as variables. The model was evaluated through multivariate nonlinear regression fitting and mixed-effects expression.
Benefits of technology
It provides a simple and accurate method for assessing vertical seismic action, applicable to the Southwest region, to reasonably assess vertical seismic action and facilitate seismic hazard analysis.
✦ Generated by Eureka AI based on patent content.
Abstract
The present application belongs to the vertical earthquake evaluation technical field, disclose a kind of vertical earthquake action evaluation method based on random effect method, including S1, the ground motion record dataset of southwest region is established;S2, determine as basic input seismic parameter;S3, determine the model equation capable of fully reflecting the V / H spectrum value variation law of target area;S4, the model equation in S3 is carried out multiple nonlinear regression fitting using random effect method;S5, according to the vibration data set established in S1 as training set, combined with the mixed effect expression fitting in S4 coefficient in S3, i.e. the V / H spectrum value model of southwest region is obtained;The present application takes magnitude, fault type, site condition, distance, focal depth as variable, and adopts random effect method to propose V / H spectrum value model suitable for southwest region, to reasonably evaluate the vertical earthquake action of the region.
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