CN105952239B - The anti-bending unstability bracing means of steel tower corner iron - Google Patents
The anti-bending unstability bracing means of steel tower corner iron Download PDFInfo
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- CN105952239B CN105952239B CN201610457324.7A CN201610457324A CN105952239B CN 105952239 B CN105952239 B CN 105952239B CN 201610457324 A CN201610457324 A CN 201610457324A CN 105952239 B CN105952239 B CN 105952239B
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- supporting plate
- type supporting
- confining part
- bracing means
- steel tower
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H12/00—Towers; Masts or poles; Chimney stacks; Water-towers; Methods of erecting such structures
- E04H12/02—Structures made of specified materials
- E04H12/08—Structures made of specified materials of metal
- E04H12/10—Truss-like structures
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
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- Wood Science & Technology (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
The invention discloses a kind of anti-bending unstability bracing means of steel tower corner iron, ribbing confining part including the confining part on the outside of angle steel and on the inside of angle steel, described confining part is " L " type supporting plate I, described ribbing confining part includes " L " type supporting plate II, and the deep floor that multiple cross sections are rectangle is provided with the clear width of " L " type supporting plate；The gap of cleat angle is formed between described " L " type supporting plate I and deep floor, and " L " type supporting plate I and " L " type supporting plate II fit together to form square outsourcing bracing means.
Description
Technical field
The invention belongs to the anti-buckling field of reinforcement of angle iron component, and in particular to prevent the steel tower corner irons such as power transmission tower or communications tower
The reinforcement means of entirety or local buckling occurs.
Background technology
Transmission line of electricity is related to the security of the lives and property of people as lifeline engineering, its safety and stability.In addition, along with
The development of mechanics of communication, in commission communications tower upgrade expanding problem turn into the most important thing.At present, many electric power pylons or communication
Tower is designed and constructed according to based on technical standard at that time, functional requirement and performance when building.Put into
After for many years, under new use condition, load or force path etc. change, or under extraneous environmental activity,
There is inevitably damage and defect, cause the deterioration of macro-mechanical property, disastrous effect is buried for engineering accident.Cause
This, transforms existing steel tower reinforcement and strengthening extremely urgent.
Angle steel tower construction is simple, convenient transportation, it is widely used in transmission line of electricity and communication systems, accounts for global steel tower
80% or so.Angle steel in angle steel tower, actually belongs to Biaxial Eccentric Compression Members, and its stress is extremely complex.Angle steel by
The buckling pattern that pressing to be presented includes overall collapse (containing bending-buckling, torsional buckling, bending unstability) and local buckling.Nothing
By which kind of buckling pattern occurs, angle steel Post-Bucking Strength and rigidity can be all remarkably decreased, and easily induce structure partial or entirety
Collapse.
Degenerated for strength and stiffness caused by preventing component flexing, be developed buckling restrained brace in recent years
(Buckling restrained brace.BRB), improve conventional center be supported under earthquake or wind action exist by
The problem of lateral deflection song, increase the economy of structure.
The content of the invention
It is an object of the present invention to provide one kind to be used for steel tower corner iron bracing means, mainly prevent steel tower corner iron bending unstability and
Local buckling, improve the anti-buckling bearing capacity of structure.Outer surface of the present invention along angle steel compression member sets two deformation constraints
Component, the two is bolted, and forms outsourcing square-section.Along angle steel length direction, setting floor spaced apart.,
This covering device can play a part of preventing angle steel from overall collapse and local buckling occurs, and improve the limit compression load of angle steel
Power.
To achieve the above object, the present invention uses following technical proposals：
The anti-bending bracing means of steel tower corner iron, including confining part on the outside of angle steel to be constrained and positioned at treating about beam angle
Ribbing confining part on the inside of steel,
Described confining part is " L " type supporting plate I, and described ribbing confining part includes " L " type and supported
Plate II, the deep floor that multiple cross sections are rectangle is provided with the clear width of " L " type supporting plate；
The gap for clamping the angle steel, and " L " type supporting plate I are formed between described " L " type supporting plate I and deep floor
" L " type supporting plate II fits together to form square outsourcing bracing means.
Further, it is wide that described " L " type supporting plate I limb is wider than leg of angle to be constrained, in leg of angle broadside to be constrained
Edge sets bolt hole.
Further, described " L " type supporting plate II limb is wide roughly the same with angle steel to be constrained, in " L " type supporting plate II
Limb end 90 ° of turnings are set, and bolt hole is set in the supporting plate of corner location, for installing fixation.
Further, described " L " type supporting plate I and " L " type supporting plate II are bolted.
Further, the confining part and ribbing confining part use GFRP materials.
Further, the length of the confining part and ribbing confining part is about 4/5 or so of angle steel to be constrained, is located at
The middle part of angle steel to be constrained.
Further, it is provided with positive stop in the bottom of confining part or/and ribbing confining part.
Further, described positive stop is arranged on the relatively low one end of angle steel absolute altitude to be constrained.
Further, described positive stop uses GFRP materials.
Further, described positive stop is pasted onto angle steel surface to be constrained by epoxy resin.
Beneficial effects of the present invention are as follows：
The present invention can be used for the angle steel for reinforcing existing steel tower, improve the Compressive Bearing Capacity of steel tower, and prevent the part of angle steel
And complete buckling.The present invention can be reinforced directly against steel tower corner irons such as power transmission tower just under arms or communications towers, be not required to weld
Connect, avoid producing residual stress and local damage.The invention is reinforced by the diagonal steel of confining part 2, will not cause internal force
Redistribution.The present invention is simple to operate, and installation rate is fast, cost-effective；Available for all kinds of angle steel towers to need reinforcement, and realize
The reinforcing of high-volume angle steel tower.
It is contemplated that apply deformation confining part in angle iron component, to realize buckling-restrained mechanism.The present invention intends adopting
Prevent the local buckling of angle steel with the confining part based on FRP material and include the overall collapse that bending deforms.The device is processed
Convenient, construction is simple is cost-effective, and the steel tower corner iron that can be aligned under arms is reinforced.In addition, FRP (fiber
Reinforced Plastic) material has intensity high, and it is unlikely to deform, is high without galvano-cautery, non magnetic, heat resistance and fire resistance,
, can be long-term use of in acid, alkali, villaumite and wet environment with good chemical resistance, and have easy for construction, weight
Gently, the advantages that service life is long and cheap.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are the present invention
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
These accompanying drawings obtain other accompanying drawings.
Fig. 1 is steel tower schematic three dimensional views；
Fig. 2 is the anti-bending bracing means schematic diagram of steel tower corner iron；
Fig. 3 is the anti-bending bracing means schematic cross-section of steel tower corner iron；
In figure：1 angle steel, 2 confining parts, 3 ribbing confining parts, 4 floors, 5 bolts, 6 positive stops.
Embodiment
Embodiments of the present invention are described in detail below in conjunction with technical scheme and accompanying drawing.
As shown in Figure 2,3：The anti-bending unstability bracing means of steel tower corner iron, including confining part 2, ribbing confining part 3 and
If bolt stem 5, confining part is located at the outside of angle steel 1, and its limb is wider than that leg of angle is wide, and bolt is set at the wide edge of its limb
Hole；Ribbing confining part 3 then on the inside of angle steel, is oppositely arranged with confining part 2, and is arranged at intervals floor 4 along its length.
Ribbing confining part limb is wide wide roughly the same with leg of angle, 90 ° of turnings is set in the acra of ribbing confining part 3, in corner part
Bolt hole is set.Confining part is connected with ribbing confining part by bolt 5, forms square outsourcing reinforcement system.Two pieces about
Beam component length is about 4/5 of angle steel or so, positioned at the centre position of angle steel length.
The spacing of floor 4 can be configured according to the length of calculating and reinforcing angle.It should be stayed on the inside of floor Edge Distance angle steel
There is appropriate clearance, prevent the installation inconvenience caused by scantling error.
The thickness of confining part 2 and ribbing confining part 3 can calculate according to actual conditions, and two kinds of confining part thickness can
It is identical.The same confining part of floor thickness.Two class confining parts can carry out batch production processing, one-shot forming, simple to operate, construction party
Just, and there is a relatively stable stress performance.
Confining part 2 and ribbing confining part 3 respectively stay 1/10 positioned at being reinforced 4/5 of angle steel or so at angle steel both ends
Distance.
Positive stop 6 uses FRP material, and being arranged at one end of angle steel, (if angle steel both ends absolute altitude is different, block should be arranged in
The relatively low one end of absolute altitude), the surface for being reinforced angle steel is pasted onto by polyester fiber, it is intended to ensure confining part not along angle steel axle
Significantly slided to generation.
Further, it is wide to be wider than leg of angle for confining part 2 and ribbing confining part 3 and limb, in confining part limb broadside
Edge sets bolt hole, is easy to fix.
Further, the limb of ribbing confining part 3 is wide roughly the same with angle steel, and 90 ° of turnings are set at limb end, and in turning branch
Bolt hole is set on fagging, for installing fixation.Ribbing confining part is arranged at intervals floor along its length.Ribbing confining part
2 one-shot formings, conveniently install and use and produce in enormous quantities, and can prevent operating error.
Further, confining part 2 and ribbing confining part 3 are connected by bolt 5.Bolt should try one's best use compared with small dimension
Bolt, it is proposed that using M16 bolts.General angle iron component can use three bolts, positioned at the both ends of confining part and in
Between, when angle iron component is longer, it can optionally increase the quantity of bolt.
Further, confining part 2 and the solid length of ribbing confining part 3 are about 4/5 of angle steel or so, are fixed on angle steel
Centre position.
Further, positive stop 6 is arranged at one end of angle steel 1 (if angle steel both ends absolute altitude is different, block should be arranged in mark
High relatively low one end), it is pasted onto by polyester fiber and is reinforced angle steel surface, it is ensured that the device will not in tension pressurized process
Fall off.
Confining part 2 and ribbing confining part 3 are intended using FRP material, and FRP is referred to as fiberglass or glass-steel reinforced plastic,
The FRP main materials commonly used in engineering structure mainly have carbon fiber (CFRP), glass fibre (GFRP) and aramid fiber (AFRP), its material
Material form mainly has sheet material (fiber cloth and plate), bar (muscle material and rope material) and section bar (grid type, I-shaped, honeycomb type etc.).
Wherein GFRP has the characteristics of intensity is high, is unlikely to deform, is non magnetic, heat resistance and fire resistance are high, has preferable chemically-resistant rotten
Corrosion and longer service life, and it is easy for construction, quality is small, cheap, can one-shot forming and factorial praluction.This patent
Confining part and ribbing confining part are not limited solely to FRP material, it is also contemplated that other materials (such as steel, aluminium alloy
Deng)；In addition, floor can also be substituted by the packing material of high-strength light.
Further, confining part 2 is " L " type supporting plate I, and ribbing confining part 3 includes " L " type supporting plate
II, the deep floor 4 that multiple cross sections are rectangle is provided with the clear width of " L " type supporting plate；
Between described " L " type supporting plate I and deep floor formed cleat angle gap, and " L " type supporting plate I and
" L " type supporting plate II fits together to form square outsourcing bracing means.
Further, it is wide to be wider than leg of angle for " L " type supporting plate I limb, and bolt hole is set in leg of angle broad edge.
Further, " L " type supporting plate II limb is wide roughly the same with angle steel, is set at " L " type supporting plate II limb end
90 ° of turnings, and bolt hole is set on corner supports plate, for installing fixation.
Further, " L " type supporting plate I and " L " type supporting plate II are connected by bolt 5, and bolt 5 is intended to connection constraints structure
Part and ribbing confining part, can in the case where ensuring confining part expectation function try one's best reduce bolt dosage with reduce material and
Installation cost.
The following aspects is should be noted in the present embodiment：
First, the floor of confining part should leave space apart from angle steel inside edge, prevent scantling error, cause to pacify
Dress inconvenience.
Second, before diagonal steel is reinforced, comprehensive assessment is carried out to steel tower, to design and determine confining part
Size, reach preferable consolidation effect.
In the present embodiment, the installation site sum of steel tower corner iron bracing means should be determined according to the concrete condition of structure
Amount, to reach optimal consolidation effect.
The present invention sets confining part on the outside of steel tower corner iron, and inner side sets ribbing confining part, two confining part phases
To setting, it is bolted.Realize in the case of welding, align the angle of the steel towers such as power transmission tower or communications tower under arms
The purpose that steel is reinforced.
The embodiment above of the present invention is not limiting the scope of the present invention, and embodiments of the present invention are unlimited
In this, all such a the above according to the present invention, according to the ordinary technical knowledge and customary means of this area, this is not being departed from
Under the premise of inventing above-mentioned basic fundamental thought, modification, replacement or the change of the other diversified forms made to said structure of the present invention
More, all should fall within the scope and spirit of the invention.
Claims (10)
1. the anti-bending bracing means of steel tower corner iron, it is characterised in that：Including the confining part on the outside of angle steel to be constrained and position
Ribbing confining part on the inside of angle steel to be constrained,
Described confining part is " L " type supporting plate I, and described ribbing confining part includes " L " type supporting plate II,
The deep floor that multiple cross sections are rectangle is provided with the clear width of " L " type supporting plate；
Form the gap for clamping the angle steel between described " L " type supporting plate I and deep floor, and " L " type supporting plate I and
" L " type supporting plate II fits together to form square outsourcing bracing means.
2. the anti-bending bracing means of steel tower corner iron as claimed in claim 1, it is characterised in that：The limb of " L " the type supporting plate I
It is wide to be wider than leg of angle to be constrained, bolt hole is set in leg of angle broad edge to be constrained.
3. the anti-bending bracing means of steel tower corner iron as claimed in claim 1, it is characterised in that：" L " the type supporting plate II's
Limb is wide roughly the same with angle steel to be constrained, and 90 ° of turnings are set at " L " type supporting plate II limb end, and in the support of corner location
Bolt hole is set on plate, for installing fixation.
4. the anti-bending bracing means of steel tower corner iron as claimed in claim 1, it is characterised in that：" L " the type supporting plate I and
" L " type supporting plate II is bolted.
5. the anti-bending bracing means of steel tower corner iron as claimed in claim 1, it is characterised in that：The confining part and ribbing are about
Beam component uses GFRP materials.
6. the anti-bending bracing means of steel tower corner iron as claimed in claim 1, it is characterised in that：The confining part and ribbing are about
The length of beam component is about 4/5 or so of angle steel to be constrained, positioned at the middle part of angle steel to be constrained.
7. the anti-bending bracing means of steel tower corner iron as claimed in claim 1, it is characterised in that in confining part or/and ribbing
The bottom of confining part is provided with positive stop.
8. the anti-bending bracing means of steel tower corner iron as claimed in claim 7, it is characterised in that described positive stop is arranged on
The relatively low one end of angle steel absolute altitude to be constrained.
9. the anti-bending bracing means of steel tower corner iron as claimed in claim 7, it is characterised in that described positive stop uses
GFRP materials.
10. the anti-bending bracing means of steel tower corner iron as claimed in claim 7, it is characterised in that described positive stop passes through
Epoxy resin is pasted onto angle steel surface to be constrained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610457324.7A CN105952239B (en) | 2016-06-21 | 2016-06-21 | The anti-bending unstability bracing means of steel tower corner iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610457324.7A CN105952239B (en) | 2016-06-21 | 2016-06-21 | The anti-bending unstability bracing means of steel tower corner iron |
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| CN105952239A CN105952239A (en) | 2016-09-21 |
| CN105952239B true CN105952239B (en) | 2018-01-09 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106677591A (en) * | 2017-03-10 | 2017-05-17 | 广东电网有限责任公司电力科学研究院 | Anti-buckling reinforcing device for angle steel of power transmission tower |
| CN107035160B (en) * | 2017-06-16 | 2022-06-14 | 湖北武大珞珈工程结构检测咨询有限公司 | Fabricated reinforcing device and method for bending deformation steel member |
| CN107060366A (en) * | 2017-06-16 | 2017-08-18 | 湖北武大珞珈工程结构检测咨询有限公司 | A kind of assembled Dam Foundation Strengthened in Situ device and method without flexural deformation steel member |
| CN107178242A (en) * | 2017-07-26 | 2017-09-19 | 广州大学 | A kind of bracing means for high voltage power transmission angle steel tower principal post angle steel |
| CN113931513A (en) * | 2021-09-23 | 2022-01-14 | 增立钢管结构(江门)有限公司 | Device and method for reinforcing strength of main material of iron tower |
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| CN101463667A (en) * | 2009-01-16 | 2009-06-24 | 天津市电力公司 | Reinforcing means for power transmission iron tower |
| CN101781937A (en) * | 2010-03-11 | 2010-07-21 | 同济大学 | Ice-resisting and strengthening reconstruction method of existing power transmission tower |
| CN101852022A (en) * | 2010-05-10 | 2010-10-06 | 中国电力科学研究院 | Method for reinforcing transmission angle steel tower |
| CN103883154A (en) * | 2014-03-14 | 2014-06-25 | 国家电网公司 | Method for field welding and strengthening of power transmission line steel angle tower leg |
| CN205688924U (en) * | 2016-06-21 | 2016-11-16 | 山东大学 | Steel tower corner iron anti-bending unstability bracing means |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7941984B2 (en) * | 2008-10-06 | 2011-05-17 | Charles Roig | Wind force resistant structure |
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2016
- 2016-06-21 CN CN201610457324.7A patent/CN105952239B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101463667A (en) * | 2009-01-16 | 2009-06-24 | 天津市电力公司 | Reinforcing means for power transmission iron tower |
| CN101781937A (en) * | 2010-03-11 | 2010-07-21 | 同济大学 | Ice-resisting and strengthening reconstruction method of existing power transmission tower |
| CN101852022A (en) * | 2010-05-10 | 2010-10-06 | 中国电力科学研究院 | Method for reinforcing transmission angle steel tower |
| CN103883154A (en) * | 2014-03-14 | 2014-06-25 | 国家电网公司 | Method for field welding and strengthening of power transmission line steel angle tower leg |
| CN205688924U (en) * | 2016-06-21 | 2016-11-16 | 山东大学 | Steel tower corner iron anti-bending unstability bracing means |
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