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A Calculation Method for Earthquake Failure Load of Single-layer Spherical Shell

A calculation method, a single-layer ball technology, applied in complex mathematical operations, design optimization/simulation, special data processing applications, etc., can solve problems such as low calculation efficiency and insufficient statistical significance of failure loads, and achieve high statistical significance.

Active Publication Date: 2022-03-08
SOUTHWEST JIAOTONG UNIV
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  • Claims
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Problems solved by technology

[0004] Aiming at the above-mentioned deficiencies in the prior art, a method for calculating the seismic failure load of a single-layer spherical shell provided by the present invention solves the problems of insufficient statistical significance and low calculation efficiency of the failure load calculated in the prior art

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  • A Calculation Method for Earthquake Failure Load of Single-layer Spherical Shell

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Embodiment Construction

[0038] The specific embodiments of the present invention are described below so that those skilled in the art can understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes Within the spirit and scope of the present invention defined and determined by the appended claims, these changes are obvious, and all inventions and creations using the concept of the present invention are included in the protection list.

[0039] Such as figure 1 As shown, the method for calculating the seismic failure load of a single-layer spherical shell includes the following steps:

[0040] S1. Establish a single-layer spherical shell model and set corresponding parameters;

[0041] S2. Obtain the surface peak acceleration and the structural site design spectral acceleration;

[0042] S3. According to the parameters of the single-layer spherical shell ...

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Abstract

The invention discloses a method for calculating the seismic failure load of a single-layer spherical shell, which includes establishing a single-layer spherical shell model and setting corresponding parameters; obtaining the peak acceleration of the ground surface and the design spectral acceleration of the structural site; Surface peak acceleration and structural site design spectral acceleration, calculate reticulated shell joint dead load and reticulated shell joint seismic action; calculate elastic buckling load according to reticulated shell joint dead load and reticulated shell joint seismic action; calculate plasticity according to parameters of single-layer spherical shell model load; use the finite element nonlinear analysis method to calculate elastic-plastic buckling load based on elastic buckling load and plastic load; calculate seismic failure load based on elastic-plastic buckling load. The invention can improve the accuracy, safety and statistical significance of the calculation and analysis of the seismic failure load of the single-layer spherical reticulated shell.

Description

technical field [0001] The invention relates to the field of structural dynamics, in particular to a method for calculating the seismic failure load of a single-layer spherical shell. Background technique [0002] The reticulated shell structure has the advantages of reasonable force, beautiful shape, strong space spanning ability, and convenient construction. Therefore, the reticulated shell structure has been widely used in engineering in my country. As the construction of reticulated shell structures continues to develop, global earthquake disasters also continue to occur frequently. According to the statistics of the China Earthquake Network, in the past 9 years, the number of strong earthquakes of magnitude 6 or above has occurred on average globally more than 90 times a year. Under the action of strong earthquakes, the theoretically better seismic performance of the reticulated shell structure is also facing the danger of damage. Therefore, the dynamic failure analysi...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/23G06F17/18
CPCG06F30/23G06F17/18
Inventor 张明谢鑫康锐
Owner SOUTHWEST JIAOTONG UNIV
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