Method for measuring load of tower

A technology for measuring towers and towers, used in measuring devices, testing of mechanical components, testing of machine/structural components, etc., can solve problems such as high space and loading requirements, inability to test indoors, and inability to truly reflect force characteristics. , to achieve the effect of accurate size and direction

Active Publication Date: 2013-12-04
STATE GRID CORP OF CHINA +2
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Problems solved by technology

[0003] The single member or component test cannot truly reflect the real force characteristics of the member or node in the tower. For example, the uneven force of the main material of the cross double angle steel cannot be simulated when the single member test is used. The better method is the real tower Test or simulation tower test; while the real tower is actually processed according to the engineering design drawings, the cost of processing and testing is high, and its space and loading requirements are high, so it cannot be tested indoors

Method used

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  • Method for measuring load of tower

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Embodiment Construction

[0031] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0032] Measurement method of the present invention comprises the following parts:

[0033] (1) Determine the simulated tower

[0034] First determine the rod or node to be studied, and build a simulated tower. The simulated tower is composed of several rods and nodes. During design, the load of the measured rod or node is reduced by increasing the slenderness ratio or reducing the section specification. Force, so that the bearing capacity of the rod or node under study becomes weaker than other parts of the overall tower, so that failure occurs first during the experiment. The legs of the tower are fixed on the reaction foundation, and the positions of the tower relative to the longitudinal loading reaction wall and the lateral loading reaction wall are adjusted according to the positions of the hanging points.

[0035] (2) Load design

[0036] Decompose t...

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Abstract

The invention provides a method for measuring the load of a tower. The tower adopts a truss structure, and a loading rope with a sensor is used for measurement. The method comprises the following steps: determining a hanging point; resolving the load; determining the included angle between the loading rope at the hanging point and the axis of the tower; determining the path of the loading rope and arranging the sensor; loading. Through the method, the condition for indoor tower experiment is satisfied, the indoor space is fully utilized, instant loading can be realized when the hanging point is subject to spatial three-dimensional displacement, and the method more approximates the actual working condition of stress of engineering rod pieces and node structures.

Description

technical field [0001] The invention belongs to the field of transmission line tower tests, in particular to a structural test measurement method for indoor transmission tower models. Background technique [0002] The power transmission tower is composed of several steel structures. In order to study the bearing capacity or strength of one of the structures, it is necessary to conduct structural tests on the tower. Because such tests are frequent, the conditions for outdoor tests are difficult and are easily affected by the external environment. Influences such as rain, snow, air temperature, corrosion, etc., and indoor testing can reduce these effects very well; for towers with high height or large bearing capacity, it is limited by the small space of the laboratory and the fixed position of the loading equipment , it is difficult for the loading cylinder to directly apply load to the tower. [0003] The single member or component test cannot truly reflect the real force c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/08G01M13/00
Inventor 李金忠王旭明丁平王佳佳张英杰
Owner STATE GRID CORP OF CHINA
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