Heightened gravity dam concrete partial load calculation method based on finite element direct internal force method

A calculation method and technology for gravity dams, applied in design optimization/simulation, instrumentation, electrical digital data processing, etc., can solve problems such as the inability to effectively evaluate the safety of gravity dams

Active Publication Date: 2020-03-06
CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0007] Aiming at the above-mentioned deficiencies in the prior art, the present invention provides a heightened gravity dam based on the finite element direct internal force method that can solve the problem that the finite element method in the prior art cannot effectively evaluate the safety of the heightened gravity dam Calculation method of concrete load sharing

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  • Heightened gravity dam concrete partial load calculation method based on finite element direct internal force method
  • Heightened gravity dam concrete partial load calculation method based on finite element direct internal force method
  • Heightened gravity dam concrete partial load calculation method based on finite element direct internal force method

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Embodiment Construction

[0077] The present invention will be further described below in conjunction with accompanying drawing:

[0078] like figure 1 As shown, it is a flow chart of the new and old concrete load sharing calculation method of the heightened gravity dam of the present invention.

[0079] The heightening gravity dam concrete load sharing calculation method based on the finite element direct internal force method of the present invention comprises the steps:

[0080] S1. Obtain the physical data of the heightened gravity dam and the physical data of the environment where the heightened gravity dam is located.

[0081] Wherein, the physical data of the heightening gravity dam includes the geometric data of the original dam body 1 and the heightening dam body 2, including the bottom width a of the original dam body 1 and the heightening dam body 2 1 、a 2 , the bottom length b 1 , b 2 ; The self-weight G of the original dam body 1 and the raised dam body 2 1 , G 2 , build the base su...

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Abstract

The invention discloses a heightened gravity dam concrete partial load calculation method based on a finite element direct internal force method. The method comprises: simplifying a heightened gravitydam into a dam body model comprising an original dam body, a heightened dam body and a foundation; solving a displacement field of the dam body model; combining the displacement field with the dam body rigidity and the resultant force borne by the dam body to obtain an overall equation; and then independently analyzing the original dam body and the heightened dam body, obtaining acting force acting on the original dam body and the heightened dam body, then obtaining the mechanical response characteristics of the original dam body and the heightened dam body, and therefore the safety characteristics of the original dam body and the heightened dam body under the load effect of the heightened dam body are obtained. The problem that the safety of the heightened gravity dam cannot be effectively evaluated through a finite element method in the prior art can be solved, the result is stable, the calculated amount is small, and evaluation is accurate.

Description

technical field [0001] The invention relates to the field of water conservancy and hydropower engineering, in particular to a method for calculating the load sharing of concrete in heightened gravity dams based on the finite element direct internal force method. Background technique [0002] Urban development requires water resources, and the water volume of existing reservoirs is gradually difficult to meet the demand. Renovating existing reservoirs and increasing the height of dams to increase reservoir capacity is an option. There are already a large number of examples of increasing the storage capacity of reservoirs through heightening of dams at home and abroad, and one of the heightening dam types is the concrete gravity dam. The main form of gravity dam heightening is heightening and thickening, that is, the upper part of the old dam is heightened with concrete, and the downstream of the old dam is thickened with concrete to increase the volume of the dam body, so as ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/13G06F30/23G06F119/14
Inventor 张国新雒翔宇张春雨
Owner CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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