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Roof Truss Structure Reliability and Sensitivity Calculation Method

A calculation method and sensitivity technology, which is applied in the field of system robustness analysis, can solve problems such as lack of reliability and sensitivity calculation methods, and high risk of roof truss structures, so as to increase robustness and safety, reduce calculation costs, and improve accuracy. Effect

Active Publication Date: 2022-07-05
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology

[0008] The purpose of the present disclosure is to provide a roof truss structure reliability and sensitivity calculation method, and then at least to a certain extent overcome the limitations and defects of related technologies caused by the lack of reliability and sensitivity calculation methods in the prior art. Risky problems of roof truss structure

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  • Roof Truss Structure Reliability and Sensitivity Calculation Method
  • Roof Truss Structure Reliability and Sensitivity Calculation Method
  • Roof Truss Structure Reliability and Sensitivity Calculation Method

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Embodiment Construction

[0046] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments, however, can be embodied in various forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided in order to give a thorough understanding of the embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure may be practiced without one or more of the specific details, or other methods, components, devices, steps, etc. may be employed. In other instances, well-known solutions have not been...

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Abstract

The present disclosure relates to a method for calculating the reliability and sensitivity of a roof truss structure, belonging to the technical field of system robustness analysis. The method includes: constructing a first kriging surrogate model, calculating the mean value of each sample point in a first initial sample matrix, and mean square error; calculate the intermediate failure limit according to the first kriging substitution model and calculate the U value of each sample point in the initial sample matrix; if the U value of each sample point in the first initial sample matrix is ​​greater than the preset U value, then generate The next sample matrix is ​​to replace the first initial sample matrix to obtain the second initial sample matrix; if the intermediate failure limit is not greater than the preset failure limit, the first kriging replacement model and the second initial sample matrix are used to calculate the roof truss structure. Failure probability and sensitivity. The method reduces the calculation cost of the failure probability of the roof truss structure, and increases the robustness and safety of the roof truss structure.

Description

technical field [0001] The present disclosure relates to the technical field of system robustness analysis, and in particular, to a method for calculating the reliability and sensitivity of a roof truss structure. Background technique [0002] The roof truss is one of the components of the house. The truss used for the roof structure needs to bear the weight of the roof and the frame and the wind load acting on the upper chord. It can be made of materials such as wood, steel or reinforced concrete, including triangular, trapezoidal, arched and other shapes. The roof truss form is generally triangular, which can be composed of upper chord, lower chord, vertical web rod and inclined web rod. The roof truss structure plays a vital role in the entire house construction. [0003] Reliability analysis is an important theoretical tool used to study the ability of structural systems to perform specific set functions, and has developed rapidly in recent years. Reliability analysis...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/13G06F17/18
CPCG06F17/18G06F30/13G06F30/20
Inventor 魏鹏飞岳珠峰刘付超周长聪张政王文选唐成虎
Owner NORTHWESTERN POLYTECHNICAL UNIV
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