Calculation method of concrete load sharing for heightened gravity dam based on finite element direct internal force method

A calculation method and technology of gravity dam, applied in design optimization/simulation, instrument, geometric CAD, etc., can solve the problem of inability to effectively evaluate the safety of gravity dam, avoid grid dependence, facilitate evaluation, and calculate the amount of small effect

Active Publication Date: 2021-08-17
CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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  • 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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  • Calculation method of concrete load sharing for heightened gravity dam based on finite element direct internal force method
  • Calculation method of concrete load sharing for heightened gravity dam based on finite element direct internal force method
  • Calculation method of concrete load sharing for heightened gravity dam 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] Such as 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...

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Abstract

The invention discloses a method for calculating load sharing of heightened gravity dam concrete based on a finite element direct internal force method. The overall equation is obtained by combining the displacement field with the stiffness of the dam body and the resultant force on the dam body, and then the original dam body and the heightened dam body are analyzed separately, and the effects on the original dam body and the heightened dam body are obtained. Then, the mechanical response characteristics of the original dam body and the heightened dam body can be obtained, so as to obtain the safety characteristics of the original dam body and the heightened dam body under the load of the heightened dam body. The invention can solve the problem that the finite element method in the prior art cannot effectively evaluate the safety of the heightened gravity dam, and the result is stable, the calculation amount is small, and the 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 Patents(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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