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A concrete dam formwork safety construction analysis method based on finite element simulation

An analysis method and technology for concrete dams, applied in design optimization/simulation, instrumentation, geometric CAD, etc., can solve problems such as insufficient formwork stability, improper support measures, casualties, etc., to achieve optimized formwork design, accurate modeling, reliable strong effect

Active Publication Date: 2019-02-22
SINOHYDRO BUREAU 7 CO LTD
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  • Claims
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AI Technical Summary

Problems solved by technology

In practice, improper support measures for formwork engineering and insufficient formwork stability have caused frequent formwork collapse accidents during construction, resulting in economic losses and casualties

Method used

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  • A concrete dam formwork safety construction analysis method based on finite element simulation
  • A concrete dam formwork safety construction analysis method based on finite element simulation
  • A concrete dam formwork safety construction analysis method based on finite element simulation

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Embodiment Construction

[0031] The present invention is further described below in conjunction with specific embodiment, and specific embodiment is the further description of the principle of the present invention, does not limit the present invention in any way, and the identical or similar technology of the present invention all does not exceed the scope of protection of the present invention.

[0032] In conjunction with the accompanying drawings.

[0033] This example selects the 6.2m assembled large formwork (composed of two 3m*3.1m large formworks) during the construction process of the upstream dam surface elevation 1882.0~elevation 1888.0 of the 4th dam section on the left bank of a power station in the Lancang River. The meta-simulation analysis was carried out to obtain the safety analysis results, and the effective implementation and application were carried out and the measured values ​​of the formwork strain tests during the on-site construction process were used to verify the reliability...

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Abstract

The invention discloses a concrete dam formwork safety construction analysis method based on finite element simulation. The invention simulates the stress and deformation development law of the high formwork under different loading conditions before and during the concrete pouring and rolling construction through finite element simulation, according to the design drawings and technical parametersof large formwork, the original two-dimensional drawing is transformed into three-dimensional finite element model in ADINA finite element software AUI geometry modeling, and by combining with the lateral pressure measured in the existing site filling construction, the deformation parameter and template boundary constraint parameter setting, the simulation simulates the deformation and stress prediction analysis of large formwork under different working conditions, especially the most unfavorable construction loads, such as rapid filling, thereby providing decision-making parameters for the design optimization, installation and transformation of large formwork and construction process adjustment, and ensuring the safety and economy of formwork design and construction application.

Description

technical field [0001] The invention relates to a method for analyzing safe construction of tall formwork based on finite element simulation, more specifically, a method for controlling safe design and construction application of tall formwork by using ADINA three-dimensional finite element simulation. Background technique [0002] Concrete dam tall formwork refers to a large steel formwork with a single warehouse size of more than 3m for single warehouse pouring on the upstream and downstream sides of concrete dam construction. Usually, the structural form of large formwork includes: continuous lifting formwork, semi-cantilever formwork, cantilever formwork, etc. At present, the most widely used lifting formwork in engineering basically adopts 3m×3.1m steel customized or processed formwork, and the construction technology of this type of formwork is relatively It is mature, but the construction efficiency is low, the consumption of artificial machinery and materials is larg...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/23G06F30/13G06F2119/06
Inventor 刘英郑祥姚必全付勇魏晋鹏杨帆
Owner SINOHYDRO BUREAU 7 CO LTD
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