Suspension bridge inhaul cable force finding analysis method

An analysis method and suspension bridge technology, applied in the fields of instrumentation, electrical digital data processing, geometric CAD, etc., can solve the problems of time-consuming, complex programming, and high computer hardware requirements, and achieve low computer configuration requirements and fewer iterations. , the effect of high solution accuracy

CN110837705APending Publication Date: 2020-02-25JIANGSU UNIV OF SCI & TECH +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2020-02-25

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Abstract

The invention relates to a suspension bridge inhaul cable force finding analysis method. The suspension bridge inhaul cable force finding analysis method is a suspension bridge inhaul cable force finding analysis method based on a target tracking-iterative updating algorithm. According to the method, under the condition that the geometric configuration and boundary conditions of the suspension bridge are known and the cable force in a finished bridge state is unknown, the mid-span deflection of a suspension bridge in a finished bridge state is used as a target value, an ANSYS parameterized programming language is used, and a force finding analysis method of a mid-span deflection-iterative update real constant array is tracked to solve the inhaul cable force meeting the structural design requirement of the suspension bridge. The suspension bridge inhaul cable force finding analysis method has the advantages that the suspension bridge inhaul cable force finding analysis method is simple,rapid, small in iteration frequency, short in solving time, low in requirement for computer configuration, high in solving precision and capable of meeting the requirements for academic research andengineering application to a certain extent, and is an effective method for determining the cable force of the suspension bridge in the bridging state.
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Description

technical field

[0001] The invention belongs to the field of bridge and culvert engineering in the transportation industry, and in particular relates to a force-finding analysis method for a suspension bridge cable based on a target tracking-iterative update algorithm. Background technique

[0002] The realization of large-span spanning of suspension bridges is mainly accomplished by prestressed cables. When designing a suspension bridge, it is necessary to analyze the static and dynamic performance of the suspension bridge to evaluate the rationality of the design scheme of the suspension bridge, and make modifications and adjustments as needed to meet the structural design requirements of the suspension bridge. Among them, the completion state analysis of the suspension bridge is the basis of other static and dynamic performance analysis. The key to the completion state analysis is to solve the prestress of the cables, that is, to carry out the force-finding analysis of th...

Examples

Embodiment Construction

[0037] The following examples can enable those skilled in the art to understand the present invention more comprehensively, but the present invention is not limited to the scope of the described examples.

[0038] The present invention provides an analysis method for cable force finding of suspension bridges based on target tracking-iterative update algorithm. The method uses suspension bridges to form a bridge under the condition that the geometric configuration and boundary conditions of the suspension bridge are known and the cable force of the bridge state is unknown. The mid-span deflection of the state is the target value. Using the ANSYS parametric command language, the force-finding analysis method of tracking the mid-span deflection and iteratively updating the real constant array is used to solve the cable force that meets the structural design requirements of the suspension bridge. Specifically: According to the Knowing the geometric configuration and boundary condit...