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Roof truss structure reliability and sensitivity calculation method

A calculation method and sensitivity technology, applied in the field of system robustness analysis, can solve the problems of lack of reliability and sensitivity calculation methods, high risk of roof truss structure, etc.

Active Publication Date: 2018-09-04
NORTHWESTERN POLYTECHNICAL UNIV
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  • Application Information

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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 may, however, be embodied in many 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 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 adopted. In other instances, well-known technical solutions have not bee...

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Abstract

The invention relates to a roof truss structure reliability and sensitivity calculation method, and belongs to the technical field of system robustness analysis. The method comprises the following steps of: constructing a first Kriging substitution model, and calculating a mean value and a mean square error of each sample point in a first initial sample matrix; calculating an intermediate failurelimit according to the first Kriging substitution model and calculating a 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 a preset U value, generating a next sample matrix to substitute the first initial sample matrix so as to obtain a second initial sample matrix; and if the intermediate failure limit is not greater than a preset failure limit, calculating a failure probability and sensitivity of a roof truss structure by utilizing the first Kriging substitution model and the second initial sample matrix. According to the method, the calculation cost for failure probabilities of roof truss structures is decreased and the robustness and safety of the roof truss structures are increased.

Description

technical field [0001] The present disclosure relates to the technical field of system robustness analysis, 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 wood, steel or reinforced concrete, including triangular, trapezoidal, arched and other shapes. The form of the roof truss is generally triangular, which can be composed of upper and lower chords, vertical webs and diagonal webs. The roof truss structure plays a vital role in the construction of the whole house. [0003] Reliability analysis is an important theoretical tool used to study the ability of structural systems to complete specific set functions, and has developed rapidly in recent years. Reliability analysis methods can rou...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06F17/18
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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