Arch ring compilation method of parabolic double-curvature arch dam

A hyperbolic arch dam and parabola technology, which is applied in image data processing, special data processing applications, instruments, etc., can solve the problems of error-prone, not strict enough, complex shape of parabolic hyperbolic arch dam, etc. Simple and clear, the effect of improving modeling and analysis efficiency

Active Publication Date: 2017-09-05
CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD
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Problems solved by technology

[0004] The shape of the parabolic hyperbolic arch dam is relatively complex, and the conventional modeling method is not rigorous enough, basically relying on the fitting curve modeling
Although it is possible to make a model with a realistic shape and a smooth surface, it is impossible to control the model parameters and accuracy to achieve an effect that is completely consistent with t

Method used

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  • Arch ring compilation method of parabolic double-curvature arch dam
  • Arch ring compilation method of parabolic double-curvature arch dam
  • Arch ring compilation method of parabolic double-curvature arch dam

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Embodiment 1

[0058] A method for compiling the shape of a parabolic hyperbolic arch dam is carried out according to the following steps:

[0059] Firstly, the basic parameters for building the parabolic hyperbolic arch dam shape are calculated, and the calculation process is as follows.

[0060] ①Calculation of arch dam foundation parameters: An arch dam is randomly selected from the database as a reference, and for this reference arch dam, the curve equation f 1 (z), f 2 (z), the center line equation f of the radius of curvature at the crowns of the left and right arch rings 3 (z), f 4 (z), the chord length L of the centerline of the left and right arch circles l , L r , Y at the arch crown beam on the centerline of the dam crest arch circle c value;

[0061] ②Calculation of crown foundation parameters: calculation of elevation crown beam thickness T=|f 1 (z)-f 2 (z)|, and the radius of curvature R at the crown of the left and right arch rings 1 =|f 2 (z)-f 3 (z)+T / 2|, R r =|f...

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Abstract

The invention provides an arch ring compilation method of a parabolic double-curvature arch dam. On the basis of analysis of double-curvature arch dam basic parameters, based on the powerful parametric modeling function of CATIA software, three-dimensional modeling of the arch dam can be achieved, and dam stress analysis, rendering effect picture, generation of a two-dimensional picture and calculation of work amount and the like are conducted with a three-dimensional model imported into relevant software. The method has the advantages that building of the arch ring of a parabolic double-curvature arch dam completely relies on parametric driving, and adjustment of the arch dam shape can be completed through modification of the basic parameters, so that the modeling and analysis efficiency is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of water conservancy and hydropower engineering, in particular to a method for editing and drawing arch rings of parabolic hyperbolic arch dams. Background technique [0002] The arch dam is a space shell structure fixed to the bedrock. On the plane, the arch circle is in the shape of an arch convex to the upstream, and the cross section of the arch crown is in the shape of a vertical or convex curve to the upstream. An arch dam that has only horizontal curvature and the upstream surface of each cantilever beam is vertical is called a single-curvature arch dam, and an arch dam that has both horizontal and vertical curvature is called a double-curvature arch dam. [0003] The arch ring type has developed from the early single-centered circular arch to three-centered circular arch, elliptical arch, parabolic arch and logarithmic spiral arch. Elliptical arches, parabolic arches, and logarithmic spiral arches a...

Claims

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Application Information

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IPC IPC(8): G06F17/50G06T17/20
CPCG06F30/13G06T17/20
Inventor 李波居浩何建峰陈祖文王正清李刚高传彬郑晓晖房彬陈波
Owner CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD
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