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Method for analyzing length error sensibility of rod member with cable-strut tensile structure

A technology of length error and tension structure, used in building components, building construction, special data processing applications, etc.

Inactive Publication Date: 2015-07-15
WENZHOU UNIVERSITY
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  • Abstract
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  • Claims
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Problems solved by technology

[0004] To sum up, at present, the error work such as error effect and error sensitivity analysis of pretension structure has been gradually carried out, but the research methods mostly adopt the influence of a group of random error numbers satisfying a certain distribution or several groups of deviation levels on the initial prestress distribution of the structure. , static and dynamic performance to analyze the error sensitivity of the structure, and did not carry out the error effect analysis based on the fact that all components of the structure satisfy a certain distribution and generally conform to the law of mathematical statistics

Method used

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  • Method for analyzing length error sensibility of rod member with cable-strut tensile structure
  • Method for analyzing length error sensibility of rod member with cable-strut tensile structure
  • Method for analyzing length error sensibility of rod member with cable-strut tensile structure

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[0018] In order to make the object, technical solution and advantages of the present invention more clear and definite, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0019] Such as figure 1 Shown is a flow chart of an embodiment of the method for analyzing the sensitivity to length error of a cable-strut tension structure member of the present invention. The method comprises the steps of:

[0020] S100. Establish the mathematical model of the length error of the bar. According to the theory of probability, the total length error of the bar obeys the normal distribution N~(μ, σ 2 ), where μ is the average value of the error, σ 2 is the variance of the error, so for a random error variable that obeys a normal distribution, the probability of the err...

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Abstract

The invention discloses a method for analyzing the length error sensibility of a rod member with a cable-strut tensile structure. The method disclosed by the invention comprises the following steps: establishing a mathematical model of the length error of the rod member; deducing a basic relation between the length error of the rod member and the pretension deviation; calculating evaluation parameters of the length error sensibility of the rod member. The method disclosed by the invention can be used for effectively judging and evaluating the length error sensibility of various members of the cable-strut pretension structure and providing a theoretical guidance for control over the mounting precision in the construction of the similar structures, for instance, the length of a length error sensitive member, for example, a ring cable in a calculation example needs to be accurately controlled.

Description

technical field [0001] The invention relates to the technical field of calculating the sensitivity of the length error of a pre-tensioned structural member, in particular to an analysis method for the sensitivity of the length error of a cable-strut tension structural member. Background technique [0002] The cable-strut pretension structure is a flexible tension structure composed of cables and compression rods and formed by tensioning. Since this system makes full use of the high strength of the cables and the advantages of pretension regulation, the structure has a strong spanning ability. , good economical performance, light and compact shape, etc., are the research hotspots and future development directions of space large-span structures at home and abroad at this stage. What needs to be emphasized is that the superior load-carrying performance of the cable-strut pretensioned structure system is derived from the high strength of the cables and the controllability of pre...

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Application Information

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IPC IPC(8): G06F19/00E04B7/14
Inventor 陈联盟邓华叶锡国
Owner WENZHOU UNIVERSITY
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