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Arrangement method of crescent rib bifurcated pipe reinforcing beam

A technology for strengthening beams and ribbed bifurcated pipes, which is applied to pipes, branch pipelines, mechanical equipment, etc., can solve the problems of difficult welding, reduced construction efficiency, and uneconomical problems, so as to reduce the difficulty of construction welding, save steel consumption, and improve The effect of construction efficiency

Active Publication Date: 2021-04-02
POWER CHINA KUNMING ENG CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of scheme is uneconomical. First, the amount of steel plate engineering is large. Second, the increase in thi

Method used

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  • Arrangement method of crescent rib bifurcated pipe reinforcing beam
  • Arrangement method of crescent rib bifurcated pipe reinforcing beam
  • Arrangement method of crescent rib bifurcated pipe reinforcing beam

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Embodiment 1

[0021] Embodiment 1: The setting method of the crescent rib bifurcation pipe reinforcement beam, the steps are as follows:

[0022] S1, formulate the diameter of the main pipe of the crescent rib bifurcation pipe, the diameter of the branch pipe, the diameter of the common cutting ball, the bifurcation angle, the angle of the main branch cone and the semi-cone apex, the shape and thickness of the crescent rib plate, and formulate the wall thickness of the conical pipe according to the overall membrane stress;

[0023] In this embodiment, the diameter of the main pipe 1 is 7500mm, the diameter of the branch pipe A2 and the branch pipe B3 is 4600mm, the diameter of the public cutting ball 8 is 8600mm, the bifurcation angle is 72°, the main cone and half cone apex angle is 10°, and the support cone and half cone apex angle The thickness of the crescent rib is 110mm, the total height is 8820mm, the total width is 4970mm, and the central section width is 1800mm; the wall thickness o...

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Abstract

The invention provides a novel reinforcing structure for a crescent rib bifurcated pipe, relates to the technology of water conservancy, hydropower and water delivery pipelines, and particularly relates to a crescent rib bifurcated pipe reinforcing method. The arrangement method of a crescent rib bifurcated pipe reinforcing beam comprises the steps of setting basic parameters of the crescent rib bifurcated pipe at first, controlling the wall thickness of the set bifurcated pipe according to overall membrane stress, carrying out finite element calculation on a conventional crescent rib bifurcated pipe without the bifurcated pipe reinforcing beam, setting the specification of the reinforcing beam, and then carrying out stress analysis through finite element calculation to confirm the parameters. According to the method, the reinforcing beam is arranged, the stress of the bifurcated pipe is obviously improved, the pipe wall thickness of the bifurcated pipe can be effectively reduced, thesteel consumption is reduced, the construction welding difficulty is reduced, and the construction efficiency is improved. The method has a certain reference effect on similar projects.

Description

technical field [0001] The invention relates to water conservancy and hydropower water transmission pipeline technology, in particular to a crescent rib bifurcated pipe reinforcement technology. Background technique [0002] In the water delivery system, the bifurcated pipe is a form of arrangement used for diversion or confluence. It is a complex space combination structure composed of thin shells and stiffened beams, mainly including three-beam bifurcated pipes, edged bifurcated pipes, and crescent bifurcated pipes. Rib bifurcation pipes, spherical bifurcation pipes and beamless bifurcation pipes, etc. Among them, crescent rib bifurcation pipes have been widely used in large and medium-sized power stations at home and abroad due to their good water flow and compact structure. [0003] The crescent rib bifurcation pipe is a complex spatial combination structure, and its stress state is relatively complicated. There are three intersecting lines at the branch pipe, and the c...

Claims

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Application Information

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IPC IPC(8): F16L41/02
CPCF16L41/023
Inventor 杨丽娜喻建清何兆升江东勃
Owner POWER CHINA KUNMING ENG CORP LTD