CN106289711A - A kind of force test in wind tunnel method being applicable to lattice round steel pipe power transmission tower - Google Patents
A kind of force test in wind tunnel method being applicable to lattice round steel pipe power transmission tower Download PDFInfo
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- CN106289711A CN106289711A CN201610636217.0A CN201610636217A CN106289711A CN 106289711 A CN106289711 A CN 106289711A CN 201610636217 A CN201610636217 A CN 201610636217A CN 106289711 A CN106289711 A CN 106289711A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/06—Measuring arrangements specially adapted for aerodynamic testing
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Abstract
The invention discloses a kind of force test in wind tunnel method being applicable to lattice round steel pipe power transmission tower: including building power transmission tower model, whole tower is tested, and decouples piecemeal, tests and calculates thus obtains whole section and the wind load of each section.The method of the present invention makes the experiment of lattice steel pipe power transmission tower wind tunnel force measurement both consider different tower section version and the difference of physical dimension, in turn ensure that the consistency of boundary conditions of test tower section and practical structures, obtained experimental result can reflect practical situation more realistically.
Description
Technical field
The present invention relates to a kind of force test in wind tunnel method, be specifically related to one and be applicable to lattice round steel pipe power transmission tower
Force test in wind tunnel method.
Background technology
In prior art, rigid model wind tunnel test is divided into manometric test and dynamometer check two kinds, but power transmission tower is lattice because of it
Structure formula structure, so generally using aerodynamic balance measuring method to obtain Shape Coefficient.Aerodynamic balance measuring can be divided into again whole tower test and
Sectionalization test two class.The test of whole tower is directly to record wind load suffered by whole tower, and full tower uses unified Shape Coefficient to be designed, but
This method of testing have ignored the difference of the wind characteristic that tower head, cross-arm and tower body sections different structure form cause.Segmentation
Test is then individually to take out a certain tower section to test, although can respectively obtain the Shape Coefficient of different tower section, but change
The actually located wind field of tower section, does not accounts for the impact on this tower section flow field of the up and down or left and right structure.Therefore, above test side
The experimental data that method obtains all can not fully reflect practical situation.
Although related specifications gives the round cross-section rod Shape Coefficient value with rod member diameter, fundamental wind pressure as parameter, but
When carrying out steel tube tower design, the bar cross section included by whole tower is of a great variety, and the aerodynamic interference between rod member is not in specification
Middle embodiment, it is therefore necessary to obtain steel tube tower Shape Coefficient by wind tunnel test.
Summary of the invention
In view of this, it is an object of the invention to provide a kind of wind tunnel force measurement being applicable to lattice round steel pipe power transmission tower
Test method, on the premise of not changing each tower section stress wind field, the test method of the present invention can record different structure respectively
The tower section Shape Coefficient of form.
Technical scheme is as follows:
A kind of force test in wind tunnel method being applicable to lattice round steel pipe power transmission tower, comprises the following steps:
Step 1: build power transmission tower model, utilize lattice steel tube tower as power transmission tower model, and by lattice steel tube tower from
Top to bottm making dismountable multi-segment structure, the most each section is an overall structure；
Step 2: whole tower is suspended on a support, then carries out dynamometer check, obtain the wind load of whole tower；
Step 3: by the one section of dismounting topmost of lattice steel tube tower, be then suspended on by remainder on above-mentioned support is the most right
Remainder steel tube tower is carried out and the dynamometer check of step 2 the same terms, obtains the wind load of remainder steel tube tower, then will
Twice gained wind load subtract each other be the wind load of dismounting part；
Step 4: with reference to step 3, the most progressively remove each section, then remainder is suspended on above-mentioned support and surveys
Power is tested, and utilizes the wind load that the method for step 3 obtains each section successively.
Further, lattice steel tube tower is split into nine sections by step 1, by arranging between main material between adjacent two sections
Connector is attached.
Further, described connector is aluminum pipe, and described aluminum pipe is divided into upper, middle and lower three sections, wherein the caliber of interlude and steel pipe
The outer tube diameter of the main material of tower is identical, caliber is identical in the caliber of upper-lower section material main with steel tube tower.
Further, described support includes a root post and a hanger bracket, the hitch point that institute's hanger bracket is arranged, described outstanding
Hanger is detachably mounted on column by bolt, and described hanger bracket height on column can be regulated by bolt.
Further, when described power transmission tower model is suspended on support, power transmission tower model ground clearance be 0.5cm ~ 2cm it
Between.
Further, when described power transmission tower model is suspended on support, power transmission tower model ground clearance is 1cm.
The beneficial effects of the present invention is: the method for the present invention makes the experiment of lattice steel pipe power transmission tower wind tunnel force measurement both examine
Consider different tower section version and the difference of physical dimension, in turn ensure that the boundary condition one of test tower section and practical structures
Cause property, obtained experimental result can reflect practical situation more realistically.
Accompanying drawing explanation
In order to make the purpose of the present invention, technical scheme and beneficial effect clearer, the present invention provides drawings described below to carry out
Illustrate:
Fig. 1 is lattice steel tube tower structural representation；
Fig. 2 is second to be dried bottle structural representation.
Detailed description of the invention
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings, so that those skilled in the art is permissible
It is better understood from the present invention and can be practiced, but illustrated embodiment is not as a limitation of the invention.
As it can be seen, a kind of force test in wind tunnel method being applicable to lattice round steel pipe power transmission tower, including following step
Rapid:
Step 1: build power transmission tower model, utilize lattice steel tube tower as power transmission tower model, and by lattice steel tube tower from
Top to bottm making dismountable multi-segment structure, the most each section is an overall structure；
Step 2: whole tower is suspended on a support, then carries out dynamometer check, obtain the wind load of whole tower；
Step 3: by the one section of dismounting topmost of lattice steel tube tower, be then suspended on by remainder on above-mentioned support is the most right
Remainder steel tube tower is carried out and the dynamometer check of step 2 the same terms, obtains the wind load of remainder steel tube tower, then will
Twice gained wind load subtract each other be the wind load of dismounting part；
Step 4: with reference to step 3, the most progressively remove each section, then remainder is suspended on above-mentioned support and surveys
Power is tested, and utilizes the wind load that the method for step 3 obtains each section successively.
In the present embodiment, lattice steel tube tower is split into nine sections by step 1, such as the 1-9 of labelling in Fig. 1, adjacent two sections
Between be attached by arranging connector between main material.
In the present embodiment, described connector is aluminum pipe, and described aluminum pipe is divided into upper, middle and lower three sections, wherein the caliber of interlude with
The outer tube diameter of the main material of steel tube tower is identical, caliber is identical in the caliber of upper-lower section material main with steel tube tower.
In the present embodiment, described support includes a root post and a hanger bracket as described in Figure 2, and institute's hanger bracket is arranged
Hitch point 11, described hanger bracket is detachably mounted on column by bolt, and described hanger bracket height on column can lead to
Cross bolt regulation.
In the present embodiment, when described power transmission tower model is suspended on support, when described power transmission tower model is suspended on support,
Power transmission tower model ground clearance is 1cm.
The method of the present embodiment makes the experiment of lattice steel pipe power transmission tower wind tunnel force measurement both consider different tower section structure shape
Formula and the difference of physical dimension, in turn ensure that the consistency of boundary conditions of test tower section and practical structures, obtained experimental result
Practical situation can be reflected more realistically.
Embodiment described above is only the preferred embodiment lifted by absolutely proving the present invention, the protection model of the present invention
Enclose and be not limited to this.The equivalent that those skilled in the art are made on the basis of the present invention substitutes or conversion, all in the present invention
Protection domain within.Protection scope of the present invention is as the criterion with claims.
Claims (6)
1. the force test in wind tunnel method being applicable to lattice round steel pipe power transmission tower, it is characterised in that: include following step
Rapid:
Step 1: build power transmission tower model, utilize lattice steel tube tower as power transmission tower model, and by lattice steel tube tower from
Top to bottm making dismountable multi-segment structure, the most each section is an overall structure；
Step 2: whole tower is suspended on a support, then carries out dynamometer check, obtain the wind load of whole tower；
Step 3: by the one section of dismounting topmost of lattice steel tube tower, be then suspended on by remainder on above-mentioned support is the most right
Remainder steel tube tower is carried out and the dynamometer check of step 2 the same terms, obtains the wind load of remainder steel tube tower, then will
Twice gained wind load subtract each other be the wind load of dismounting part；
Step 4: with reference to step 3, the most progressively remove each section, then remainder is suspended on above-mentioned support and surveys
Power is tested, and utilizes the wind load that the method for step 3 obtains each section successively.
The force test in wind tunnel method being applicable to lattice round steel pipe power transmission tower the most according to claim 1, its feature
It is: lattice steel tube tower is split into nine sections by step 1, passing through between adjacent two sections, connector is set between main material and carries out
Connect.
The force test in wind tunnel method being applicable to lattice round steel pipe power transmission tower the most according to claim 2, its feature
Being: described connector is aluminum pipe, described aluminum pipe is divided into upper, middle and lower three sections, outside wherein the caliber of interlude is with the main material of steel tube tower
Caliber is identical, caliber is identical in the caliber of upper-lower section material main with steel tube tower.
The force test in wind tunnel method being applicable to lattice round steel pipe power transmission tower the most according to claim 1, its feature
Being: described support includes a root post and a hanger bracket, the hitch point that institute's hanger bracket is arranged, described hanger bracket passes through spiral shell
Bolt is detachably mounted on column, and described hanger bracket height on column can be regulated by bolt.
The force test in wind tunnel method being applicable to lattice round steel pipe power transmission tower the most according to claim 1, its feature
Being: when described power transmission tower model is suspended on support, power transmission tower model ground clearance is between 0.5cm ~ 2cm.
The force test in wind tunnel method being applicable to lattice round steel pipe power transmission tower the most according to claim 5, its feature
Being: when described power transmission tower model is suspended on support, power transmission tower model ground clearance is 1cm.
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| CN201610636217.0A CN106289711B (en) | 2016-08-05 | 2016-08-05 | A kind of force test in wind tunnel method suitable for lattice round steel pipe power transmission tower |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107328548A (en) * | 2017-05-24 | 2017-11-07 | 国家电网公司 | A kind of extra-high voltage multiloop power transmission tower Shape Coefficient test method |
| CN107894319A (en) * | 2017-12-29 | 2018-04-10 | 中国能源建设集团浙江省电力设计院有限公司 | A kind of test device of round steel pipe bar Shape Coefficient |
| CN110276157A (en) * | 2019-06-28 | 2019-09-24 | 中国铁塔股份有限公司 | A kind of the Wind load calculating method and relevant device of single-tube communication tower |
| CN112098038A (en) * | 2020-08-27 | 2020-12-18 | 汕头大学 | Rigid body model multipoint synchronous force measuring method under three-dimensional wind action |
| CN113374329A (en) * | 2021-07-08 | 2021-09-10 | 重庆科技学院 | Cross oblique material double-limb connecting node and power transmission tower angle steel connecting structure |
| CN113465957A (en) * | 2021-05-17 | 2021-10-01 | 中国人民解放军第六九O五工厂 | Antenna lift mast wind-resistant simulation test system |
| CN113504025A (en) * | 2021-09-13 | 2021-10-15 | 中国航天空气动力技术研究院 | Dynamic load testing method for wind tunnel with large attack angle and low frequency structure |
| CN113670562A (en) * | 2021-08-11 | 2021-11-19 | 中国南方电网有限责任公司超高压输电公司广州局 | Support tower device and method for simulating collapse of wind tunnel test power transmission tower |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107328548A (en) * | 2017-05-24 | 2017-11-07 | 国家电网公司 | A kind of extra-high voltage multiloop power transmission tower Shape Coefficient test method |
| CN107894319A (en) * | 2017-12-29 | 2018-04-10 | 中国能源建设集团浙江省电力设计院有限公司 | A kind of test device of round steel pipe bar Shape Coefficient |
| CN110276157A (en) * | 2019-06-28 | 2019-09-24 | 中国铁塔股份有限公司 | A kind of the Wind load calculating method and relevant device of single-tube communication tower |
| CN112098038A (en) * | 2020-08-27 | 2020-12-18 | 汕头大学 | Rigid body model multipoint synchronous force measuring method under three-dimensional wind action |
| CN112098038B (en) * | 2020-08-27 | 2022-09-20 | 汕头大学 | Rigid body model multipoint synchronous force measuring method under three-dimensional wind action |
| CN113465957A (en) * | 2021-05-17 | 2021-10-01 | 中国人民解放军第六九O五工厂 | Antenna lift mast wind-resistant simulation test system |
| CN113374329A (en) * | 2021-07-08 | 2021-09-10 | 重庆科技学院 | Cross oblique material double-limb connecting node and power transmission tower angle steel connecting structure |
| CN113670562A (en) * | 2021-08-11 | 2021-11-19 | 中国南方电网有限责任公司超高压输电公司广州局 | Support tower device and method for simulating collapse of wind tunnel test power transmission tower |
| CN113504025A (en) * | 2021-09-13 | 2021-10-15 | 中国航天空气动力技术研究院 | Dynamic load testing method for wind tunnel with large attack angle and low frequency structure |
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