Internal force calculation method taking shear deformation of closed frame and rigid joints into consideration

A technology of shear deformation and calculation method, applied in the direction of calculation, design optimization/simulation, special data processing application, etc., can solve the problem of not considering shear deformation and rigid nodes, can not be used, etc., to facilitate popularization, application and operation. Convenient, reliable results

Active Publication Date: 2016-06-01
CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The PK module of PKPM software can realize the calculation of plane frame structure, but this module does not have the function of considering shear deformation and rigid nodes
Therefore, PKPM software cannot be used for the calculation of planar closed frames considering shear deformation and rigid joints

Method used

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  • Internal force calculation method taking shear deformation of closed frame and rigid joints into consideration
  • Internal force calculation method taking shear deformation of closed frame and rigid joints into consideration
  • Internal force calculation method taking shear deformation of closed frame and rigid joints into consideration

Examples

Experimental program
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Effect test

Embodiment 1

[0049] For such as figure 1 The closed frame structure shown is composed of frame bottom plate 1, frame top plate 2, frame left pier 3, frame middle pier 4, frame right pier 5, and frame member node 6. The internal force calculation is carried out by the following steps:

[0050] ①Determine the calculation structure: According to the basic principle of the plane frame method, the lower solid structure of the plant is divided into single-width plane frames. Because the relative stiffness of the upper members is close to the relative stiffness of the bottom plate, the calculation is based on the closed frame. Formed as figure 1 In the closed frame structure shown, the closed frame is composed of a frame bottom plate 1, a frame top plate 2, a frame left pier 3, a frame middle pier 4, a frame right pier 5 and a frame member node 6.

[0051] ②Determine the calculation diagram: the center line of the frame structure is the calculated length of the accurately determined member; according...

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PUM

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Abstract

The invention provides an internal force calculation method taking shear deformation of a closed frame and rigid joints into consideration. The method comprises the following steps of determining a structure, determining a calculation diagram, determining a calculation model, limiting the freedom degree of the model, restraining lateral sway, determining a shear-resisting rigidity coefficient, adjusting the calculation model and carrying out structural calculation and analysis. Precision of the calculation result meets the standard requirement, the fast and accurate purpose is achieved, powerful functions and operation convenience of a structural mechanics solver are fully utilized, reliability of the calculation result is high, and the method is convenient to apply and popularize.

Description

Technical field [0001] The invention relates to an internal force calculation method considering the shear deformation of a closed frame and rigid nodes, and belongs to the technical field of water conservancy and hydropower engineering. Background technique [0002] According to the current requirements of the hydropower industry in my country, the substructure of the lower part of the plant, such as the spiral casing, draft tube, tubular seat of the tubular unit, the inlet section of the riverbed plant, the underwater wall pier, and the foundation slab, can be cut according to the independent structure. The frame is calculated, and the space effect should be considered for large-scale workshops, and the overall three-dimensional finite element structure analysis of the workshop should be carried out if necessary. [0003] In the calculation of the plane frame method, according to the relative rigidity of the bar at the cut-out position, when the relative rigidity of the upper bar ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 陈仁宏陈本龙马青文浩王家明史国坤
Owner CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD
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