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Method using static force scale model to test power transmission tower

A technology of scaled model and transmission tower, applied in the testing of machine/structural components, instruments, measuring devices, etc., can solve the problems of long cycle and high test cost of real tower, and achieve short duration, easy control, and test cost. low effect

Inactive Publication Date: 2013-09-11
STATE GRID CORP OF CHINA +3
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, although there are real-type tower test bases in China, the cost of real-type tower tests is too high and the cycle is long

Method used

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  • Method using static force scale model to test power transmission tower
  • Method using static force scale model to test power transmission tower

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Experimental program
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Effect test

Embodiment 1

[0025] Embodiment 1: A method for testing a transmission tower using a static scale model, which is used to verify the rationality of the design of the transmission tower and grasp the force mechanism and deformation characteristics of the transmission tower.

[0026] The method comprises the steps of:

[0027] (1) Process, assemble and fix the static scale model 1 of the transmission tower to be tested and determine the nodes to be applied on the static scale model 1.

[0028] The static scale model 1 of the transmission tower to be tested needs to be processed and assembled in the factory. Its height is between 8m and 15m to meet the requirements of the indoor test. The steel materials can be Q345, Q390, Q420, Q460 and other steel types. The material of connecting bolts can be grade 6.8, grade 8.8 and grade 10.9. The connecting flanges of the pipe fittings used in static scale model 1 adopt rigid flanges.

[0029] The test process after the static scale model 1 is processe...

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Abstract

The invention relates to a method using a static force scale model to test a power transmission tower. The method comprises the steps of processing, assembling and fixing the static force scale model of the power transmission tower to be tested, confirming a node to be stressed on the static force scale model, connecting a pull cable capable of exerting pull force in the horizontal or vertical direction on the static force scale model with the node, connecting the other end of the pull cable with a force exerting device, distributing strain testing points and displacement testing points on the static force scale model at the typical portions, starting the force exerting device, gradually exerting node force on the static force scale model through the pull cable, and simultaneously observing the development situations of the strain testing points and the displacement testing points. The testing method is low in testing cost, short in duration, little in natural environmental effect and easy to control. The testing method can achieves synchronous loading of all nodes of a model tower and meanwhile brings convenience to observation on the strain and displacement development of all testing points.

Description

technical field [0001] The invention relates to a method for testing a power transmission tower, in particular to a method for using a static scale model of a power transmission tower for testing. Background technique [0002] The transmission tower is a tall structure with a huge amount of engineering and is very important. As a power facility of an important lifeline project, transmission towers of various types and purposes are often used in transmission line projects. [0003] With the continuous improvement of the transmission capacity and voltage level of transmission lines, and due to the shortage of land resources in my country and the improvement of environmental protection requirements, double-circuit and multi-circuit lines on the same tower have become an inevitable trend in economically developed areas, and many large-load towers have appeared. Combine angle steel towers and more. In some economically developed areas, the requirements for line corridors are bec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M99/00
Inventor 戴岳张大长张春娟翁岳明周仰东张元兴
Owner STATE GRID CORP OF CHINA
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