Anti-seismic calculation mode superposition method of hybrid structure

A modal superposition and hybrid structure technology, applied in complex mathematical operations, design optimization/simulation, geometric CAD, etc., can solve problems such as non-unique calculation results, large differences between calculation results and actual values, and complicated damping matrix construction process
CN112528528APending Publication Date: 2021-03-19SHENZHEN INSTITUTE OF INFORMATION TECHNOLOGY
0 Cites 1 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SHENZHEN INSTITUTE OF INFORMATION TECHNOLOGY
Publication Date
2021-03-19

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses an anti-seismic calculation mode superposition method of a hybrid structure, which comprises the following steps: S1, establishing a finite element analysis model of the structure, and further obtaining a motion equation, a mass matrix M, a rigidity matrix K and a damping matrix G of the structure; s2, obtaining a circular frequency omega j, a feature vector and a componentmodal internal force vector rj (j = 1... L) through regular modal calculation of the structure, and further calculating a damping coefficient gji (j, i = 1... L) through an equation; and S3, performing calculation by utilizing frequency domain iterative solution or time domain iterative solution to obtain node displacement x (t) or component internal force R (t), wherein t represents time. By implementing the invention, the damping matrix is clear in physical significance and simple in construction process, only one calculation result is provided, the uncertainty of the calculation result when classical damping assumption exists is avoided, and the calculation result is closer to an accurate value.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the field of construction and relates to an anti-seismic calculation mode superposition method of a hybrid structure. Background technique

[0002] For a single material structure, the modal superposition method is a time-history analysis method with high computational efficiency and low computational cost. my country's seismic code stipulates that for particularly irregular buildings, Class A buildings and high-rise buildings exceeding a certain height, it is appropriate to use the time-history analysis method for supplementary calculations. With the rapid development of my country's economy, a variety of super high-rise buildings, large-span space structures and other hybrid structures composed of different material components have emerged in various places. For example, the core material of super high-rise buildings is reinforced concrete. The component material is steel; the lower chassis material of large stadiums is reinf...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More