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Arch dam temperature load applying method and system based on heat conduction theory

A heat conduction and arch dam technology, applied in the field of arch dam temperature load application methods and systems, can solve problems such as difficult mesh division, large temperature load deviation, and inability to apply temperature loads.

Pending Publication Date: 2022-04-01
YELLOW RIVER ENG CONSULTING
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Problems solved by technology

This calculation method has high requirements on the grid of the dam body. Considering the discharge orifice of the dam body and the pier, the division of the grid is extremely difficult, resulting in that the temperature load cannot be applied, or the temperature load after application large deviation

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  • Arch dam temperature load applying method and system based on heat conduction theory
  • Arch dam temperature load applying method and system based on heat conduction theory
  • Arch dam temperature load applying method and system based on heat conduction theory

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Embodiment Construction

[0055] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0056] The purpose of the present invention is to provide a method and system for applying temperature load to an arch dam based on the theory of heat conduction. Based on the principle of stable heat conduction, the linear application of temperature load along the thickness direction of the dam body is realized, and the application of temperature load is no longer overly dependent on the thickness direction. The equally divided finite...

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Abstract

The invention provides an arch dam temperature load applying method and system based on the heat conduction theory, and the method comprises the steps: dividing a dam body node into a plurality of upstream dam face node assemblies and a plurality of downstream dam face node assemblies along the elevation according to the shape parameters of an arch dam body; according to the temperature field condition of the arch dam body operation period, the upstream dam face temperature load of each upstream dam face node assembly and the downstream dam face temperature load of each downstream dam face node assembly are determined, the upstream dam face temperature load serves as the upstream temperature boundary condition, and the downstream dam face temperature load serves as the downstream temperature boundary condition; on the basis of the upstream temperature boundary conditions, the downstream temperature boundary conditions and dam body thermal parameters, dam body stable heat transfer finite element calculation is conducted, and the temperature load of each node in the arch dam body is determined; and the temperature load of each node in the arch dam body is applied to the corresponding position of the dam body, so that the difficulty of applying the temperature load is reduced, and the efficiency and the precision of applying the temperature load are improved.

Description

technical field [0001] The invention relates to the technical field of water conservancy and hydropower engineering, in particular to a method and system for applying temperature loads on arch dams based on heat conduction theory. Background technique [0002] Temperature load is one of the main loads of arch dams. The temperature load is determined by the difference between the temperature of the dam body concrete and the temperature of the arch closure during operation. The temperature of the dam body under the design normal temperature rise and design normal temperature drop should be calculated separately load. The distribution of temperature load along the thickness direction of the dam body is as follows: figure 1 As shown, it can be decomposed into the average temperature of the section (I), the equivalent linear temperature difference (II) and the nonlinear temperature change (III). The temperature difference (II) has two parts. Therefore, the temperature load cha...

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Application Information

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IPC IPC(8): G06F30/23G06F30/13E02B7/12G06F111/04G06F119/08
Inventor 王惠芹杨顺群杨军义董甲甲孙凯徐庆
Owner YELLOW RIVER ENG CONSULTING
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