CN108035607A - For the anti-buckling alternative and method in the repairing of steel truss tower, replacement and maintenance work - Google Patents
For the anti-buckling alternative and method in the repairing of steel truss tower, replacement and maintenance work Download PDFInfo
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- CN108035607A CN108035607A CN201711415981.6A CN201711415981A CN108035607A CN 108035607 A CN108035607 A CN 108035607A CN 201711415981 A CN201711415981 A CN 201711415981A CN 108035607 A CN108035607 A CN 108035607A
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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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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0218—Increasing or restoring the load-bearing capacity of building construction elements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
A kind of anti-buckling alternative in the repairing of steel truss tower, replacement and maintenance work, including anti-buckling excessively rod piece, jointing and connecting elements, the anti-buckling excessively rod piece includes core component, connecting sleeve, sleeve, anti-buckling interlayer and layer of carbon fiber material；The jointing is including replacing component bolt hole, connection stiffener and jointing end on stiffener, gusset plate, the jointing is set on each gusset plate with power transmission tower, and the both ends of the anti-buckling excessively rod piece are connected with the jointing on gusset plate by connecting elements respectively.And provide a kind of anti-buckling replacement method in the repairing of steel truss tower, replacement and maintenance work.The present invention can provide safe and reliable steel truss tower Local Members alternative and technique, so as to ensure the construction safety in the repairing of steel truss tower, replacement and maintenance work, greatly increase the service life of steel truss tower, can greatly save every cost.
Description
Technical field
It is particularly a kind of to be used for the repairing of steel truss tower, replace the present invention relates to transmission facility technical field and field of steel structure
Change and the anti-buckling alternative and method in maintenance work.
Background technology
In recent years, to adapt to the rapid growth of China's economy, China's power grid scale is increasing, and voltage class is increasingly
Height, electric network composition become increasingly complex.Meanwhile requirement of the national socio-economic development to power grid is higher and higher, economically developed
Area, particularly in areas such as such as Delta of the Pearl River, circuit in industrial area, resident compact district or need to be clipped in two built circuits
Between cabling, erect power transmission lines corridor epitonos, and the contradiction of power transmission line corridor and land resource is very prominent.How to ensure
The safe and stable operation of power grid, it is ensured that power grid is securely and reliably powered to the whole society, is the weight for concerning national economy and national security
Big problem.
Power transmission tower is a kind of lattice tall and slender structure, is the important component of transmission line of electricity, has height, and soft and damping is small
The features such as, currently, most of power transmission tower is made of angle steel (or round steel) substantially, it resists outer lotus by the strength and stiffness of itself
Carry.On the one hand, power transmission distance is all very long at present, and some all takes high-voltage transmission, in order to avoid safety is hidden existing for high pressure
Suffer from, also for urban construction, the height of the power transmission tower of general high voltage is all more than 30 meters.Under outer load action, power transmission tower
Easily there are some local deformations in local component, for a long time with for component easily large deformation occurs and causes intensity and unstability
Destroy；On the other hand, electric power pylon mainly uses zinc-plated steel construction, is chronically exposed in the environment exposed to the weather, particularly plates
Zinc steel construction power transmission tower easily occurs what is corroded in the presence of very lossy, component in itself in coastal area and industrial pollution, power transmission tower
Phenomenon, service life will greatly shorten.So staff needs periodically to rush to repair power transmission tower and maintenance work, but work as
When some components deform in structure, repairing and maintenance work at present is only limitted to the local reinforcement and spray to original structure substantially
Apply anticorrosion material etc..Such as when certain deformation occurs in a certain king-post vertically carried in power transmission tower, if let go unchecked,
The generation that will then cause the overall collapse of power transmission tower to collapse, if using general reinforcement, can distribute the rigidity of structure
Occur unbalanced, the security needs of structure are recalculated and assessed, and otherwise, power transmission tower should carry out dismounting reconstruction.With respect to certain
Some components are unsatisfactory for bearing capacity and wave deformation requirements and to reconstruct, and replace these undesirable components then relatively more
Add economy.However, the conventional substantial amounts of equipment of replacement need of work, and there are larger security risk.
The content of the invention
For the above problem in the presence of the repairing of existing steel truss tower and maintenance work, the present invention provides one kind to be used for
Anti-buckling alternative in the repairing of steel truss tower, replacement and maintenance work, it is local can to provide safe and reliable steel truss tower
Component alternative and method, so as to ensure the construction safety in the repairing of steel truss tower, replacement and maintenance work, greatly increase steel
The service life of derrick tower, can greatly save every cost.
The technical solution adopted by the present invention to solve the technical problems is：
A kind of anti-buckling alternative in the repairing of steel truss tower, replacement and maintenance work, the anti-buckling replacement
Device includes anti-buckling excessively rod piece, jointing and connecting elements, and the anti-buckling excessively rod piece includes core component, connection
Casing, sleeve, anti-buckling interlayer and layer of carbon fiber material, two core components are connected by connecting sleeve, every core component
The outer suit sleeve, is anti-buckling interlayer between the core component and sleeve lining, sets carbon fine outside the connecting sleeve
Tie up material layer；
The jointing is including replacing component bolt hole, connection stiffener and jointing end on stiffener, gusset plate
Portion, the stiffener and connection stiffener are each attached on gusset plate, are connected between two stiffeners by the connection stiffener
Connect, set on the gusset plate and component bolt hole is replaced on gusset plate, jointing end is set on the jointing end
Bolt hole；
The jointing is set on each gusset plate with power transmission tower, the both ends of the anti-buckling excessively rod piece respectively with
Jointing on gusset plate is connected by connecting elements.
Further, set on gusset plate and component bolt hole is replaced on the gusset plate being adapted with power transmission tower main component；
Connection stiffener is crossed welding manner and is connected on gusset plate；To ensure the inside and outside stability of the plane of connection stiffener, pass through weldering
Connect mode stiffener is connected on gusset plate and connection stiffener；Jointing portion is welded on connection stiffener again；Even
Connect fitting end bolt hole and be arranged on by Force Calculation in jointing portion and form the jointing.
Further, the first core component upper bolt hole, the second core are set respectively on core component and connecting sleeve
Bolt hole on component upper bolt hole, connecting sleeve；Two are connected between core component and connecting pipe box by connecting elements
Connect；Sleeve is set on the outside of core component, and on cross section, core component is located at the positive middle part of sleeve scope.
It is a kind of for steel truss tower repairing, replace and maintenance work in it is anti-buckling replace method, replaced in power transmission tower component
During changing, first anti-buckling excessively rod piece is needed by connecting elements and power transmission tower to replace the company of the jointing at component both ends
Connect connector portions connection；The component for needing to replace is pulled down again, then removes the component for needing to replace, replaces new component, finally will
Superflexion rod piece is pulled down, and displacement is completed.
Further, the replacement method comprises the following steps：
(1) built in power transmission tower and use gusset plate pattern, i.e., jointing end described in jointing in position of joints initial stage
The number of bolt hole in portion and aperture are also determined by design-calculated envelope internal force；
(2) the anti-excessive rod piece in the wrong of component design replaced is needed for power transmission tower；
(3) making is processed according to the design drawings of anti-buckling excessively rod piece, and transports scene to；
(4) superflexion rod piece is connected to by connecting elements on the jointing for needing to replace component both ends, then torn open
Except the component that needs are replaced, new component is replaced, finally pulls down superflexion rod piece, displacement is completed.
The present invention technical concept be：Rushed to repair for steel truss tower, the anti-buckling alternative in replacement and maintenance work,
" replacement " and " anti-buckling alternative " implication are scarce in having in power transmission tower can be safely replaced by the device of the invention
Sunken component, so as to ensure the safety of structure；In some project or in standardization drawing, same type of power transmission tower meeting
Have multiple, for each type of transmission of electricity Deethanizer design and produce some anti-buckling excessively rod piece (these anti-buckling excessive bars
Part can also formula for composite be assembled into new anti-buckling excessive rod piece), it is anti-buckling excessively rod piece pass through on power transmission tower gusset plate
Excessive connector be attached, need the component replaced removing, install new component, then pull down anti-buckling excessive rod piece,
So as to reach the requirement of replacement.So as to ensure the construction safety in the repairing of steel truss tower, replacement and maintenance work, steel is greatly increased
The service life of derrick tower, can greatly save every cost.
Compared with the prior art, the present invention has following advantageous effects：
(1) present invention replaces the supporting member of work using anti-buckling excessively rod piece as defective rod piece in power transmission tower,
Anti-buckling excessively rod length can set longer, can make full use of the intensity of core, relatively pure steel member is substantially reduced
The section of component, excessive connector can also be set relatively small, so as to not influence the beauty of power transmission tower alien invasion；It is anti-buckling
Excessive rod piece can reuse, and can be combined use, preferable using in the power transmission tower of same type used, having
Cost performance.
(2) present invention replaces original defective component using new structural member, it is ensured that component is lacked small in power transmission tower
After falling into (local buckling, local corrosion etc.), it will be replaced before large deformation, big weakening, it is ensured that effect of the power transmission tower in external load
Under have a surplus some supporting member unstabilitys or fracture there is a situation where unstability is collapsed, greatly increase steel truss tower uses the longevity
Life, can greatly save every cost.
(3) process that the present invention is changed afterwards using first supporting, can ensure to replace the security of work, by constructor significantly
The life safety hazard of member and the danger of structural collapse are preferably minimized.
(4) without substantial amounts of equipment in construction of the invention, technique is simple, easy for construction, and short time limit, human input is few,
Construction efficiency is high, of low cost, as can be largely used in present steel tower construction and steel tower maintenance, repairing neutralization replacement, will
Huge economic benefit can be brought.
Brief description of the drawings
Fig. 1 is the typical parts schematic diagram that power transmission tower of the present invention needs to replace.
The anti-buckling excessively rod piece explosive view of Fig. 2 present invention.
Fig. 3 transit joint connection diagrams of the present invention.
The anti-buckling excessively rod piece installation composite diagram of Fig. 4 present invention.
The replacement schematic diagram of the lateral stressed component of Fig. 5 present invention.
The replacement schematic diagram of Fig. 6 vertical applied force components of the present invention.
Primary structure member replacement step schematic diagram in Fig. 7 power transmission towers of the present invention.
In Fig. 1~Fig. 7,1 is anti-buckling excessive rod piece；11 be core component；12 be connecting sleeve；13 be sleeve；14 are
Anti-buckling interlayer；15 be the first core component upper bolt hole；16 be the second core component upper bolt hole；17 is in connecting sleeves
Bolt hole；18 be layer of carbon fiber material；19 be connecting elements；2 be jointing；21 be stiffener；22 be to be replaced on gusset plate
Component bolt hole；23 be connection stiffener；24 be jointing end；241 be jointing end bolt hole；25 be node
Plate；3 be connecting elements；4 be power transmission tower；41 be vertical applied force component；42 be lateral stressed component；43 be connecting elements；44 are
Position of joints.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
Embodiment 1
With reference to Fig. 1~Fig. 7, a kind of anti-buckling alternative in the repairing of steel truss tower, replacement and maintenance work, institute
Stating anti-buckling alternative includes anti-buckling excessively rod piece, jointing and connecting elements, and the anti-buckling excessively rod piece includes
Core component, connecting sleeve, sleeve, anti-buckling interlayer and layer of carbon fiber material, two core components are connected by connecting sleeve,
The sleeve is set with outside every core component, is anti-buckling interlayer between the core component and sleeve lining, the connector sleeve
Pipe is outer to set layer of carbon fiber material；
The jointing is including replacing component bolt hole, connection stiffener and jointing end on stiffener, gusset plate
Portion, the stiffener and connection stiffener are each attached on gusset plate, are connected between two stiffeners by the connection stiffener
Connect, set on the gusset plate and component bolt hole is replaced on gusset plate, jointing end is set on the jointing end
Bolt hole；
The jointing is set on each gusset plate with power transmission tower, the both ends of the anti-buckling excessively rod piece respectively with
Jointing on gusset plate is connected by connecting elements.
Further, set on gusset plate and component bolt hole is replaced on the gusset plate being adapted with power transmission tower main component；
Connection stiffener is crossed welding manner and is connected on gusset plate；To ensure the inside and outside stability of the plane of connection stiffener, pass through weldering
Connect mode stiffener is connected on gusset plate and connection stiffener；Jointing portion is welded on connection stiffener again；Even
Connect fitting end bolt hole and be arranged on by Force Calculation in jointing portion and form the jointing.
Further, the first core component upper bolt hole, the second core are set respectively on core component and connecting sleeve
Bolt hole on component upper bolt hole, connecting sleeve；Two are connected between core component and connecting pipe box by connecting elements
Connect；Sleeve is set on the outside of core component, and on cross section, core component is located at the positive middle part of sleeve scope.
When transmitting electricity Deethanizer design, the gusset plate of power transmission tower interior joint position is designed to the form of jointing 2 entirely, is connected
Including replacing component bolt hole 22, connection stiffener 23 on stiffener 21, gusset plate, jointing portion 24 and connection connect connector 2
Cephalic par bolt hole 241.Set on gusset plate 25 and component bolt is replaced on the gusset plate being adapted with power transmission tower main component
Hole 22；Connection stiffener 23 is crossed welding manner and is connected on gusset plate 25；To ensure inside and outside steady of plane of connection stiffener 23
It is qualitative, stiffener 21 is connected on gusset plate 25 and connection stiffener 23 by welding manner；Jointing portion 24 is welded again
It is connected on connection stiffener 23；Jointing end bolt hole 241 is arranged in jointing portion 24 by Force Calculation, the company of being formed
Connector 2.
In power transmission tower operation, certain root component needs to be replaced, anti-according to the stressing conditions of the root component, design first
Superflexion rod piece 1, superflexion rod piece 1 include core component 11, connecting sleeve 12, sleeve 13, anti-buckling interlayer 14, first
Core component upper bolt hole 15, the second core component upper bolt hole 16, the bolt hole 17 in connecting sleeve, carbon fibre material 18,
Connecting elements 19.Wherein, the first core component upper bolt hole 15, second is set respectively on core component 11 and connecting sleeve 12
Bolt hole 17 on core component upper bolt hole 16, connecting sleeve；Connecting pipe box 12 are set between core component 11, pass through connection
Component 19 is attached；On the outside of core component 11 setting sleeve 13, cross section, core component 11 is located at sleeve 13 and includes model
The positive middle part enclosed, sets anti-buckling interlayer 14 between core component 11 and sleeve 13, then will be segmented by carbon fibre material 18
Component be attached, formed it is anti-buckling excessively rod piece 1.
In power transmission tower component replacement process, first anti-buckling excessively rod piece 1 is needed by connecting elements 3 with power transmission tower
The jointing portion 24 for replacing the jointing 2 at component both ends connects；The component for needing to replace is pulled down again, then removes needs
The component of replacement, replaces new component, finally pulls down superflexion rod piece 1, and displacement is completed.
As shown in Figures 2 to 5, a kind of anti-buckling alternative in the repairing of steel truss tower, replacement and maintenance work,
Including anti-buckling excessively rod piece 1, jointing 2 and connecting elements 3, anti-buckling excessively rod piece 1 includes core component 11, connector sleeve
Pipe 12, sleeve 13, anti-buckling interlayer 14, the first core component upper bolt hole 15, the second core component upper bolt hole 16, connector sleeve
Bolt hole 17, carbon fibre material 18, connecting elements 19 on pipe；Jointing 2 includes stiffener 21, and component is replaced on gusset plate
Bolt hole 22, connects stiffener 23, jointing end 24, jointing end bolt hole 241, gusset plate 25.
The jointing is set on each gusset plate with power transmission tower, the both ends of the anti-buckling excessively rod piece respectively at
Jointing on gusset plate is connected by connecting elements.
Preferential, the core component preferentially uses the steel of more than trade mark Q420, or exceedes the height of Q420 using intensity
Molecular material；
Preferential, the core component can use pipe form, the form such as square tube form, solid steel, and specification is consistent；
Preferential, the core component length total length specification is 1m, 2m, 5m, 10m, can also be fabricated to other length shapes
Formula；
Preferential, the both ends of the core component need out bolt hole, and surface needs to carry out blasting treatment, makes its surface thick
Rugosity reaches Sa2.5 grades, and bolt number of perforations and diameter are set by design envelope value；
Preferential, the bolt uses high-strength bolt, bolt number and diameter to be set by design envelope value；
The peripheral unit includes casing and anti-buckling interlayer, is attached between peripheral unit by carbon fibre material；
Preferential, the sleeve can use the steel pipe or metal tube of all kinds of specifications that in the market has, steel pipe or metal tube
Can be circle, square, rectangular steel pipe etc., or using two pieces of two plate arm phases for by metallic plate formed after 90 ° of bendings
Mutual vertical folded plate be welded；
Preferential, the sleeve total length is shorter 200mm than the total length of core component；
Preferential, the steel pipe or metal tube of all kinds of specifications that described sleeve pipe is had using in the market；
The anti-buckling interlayer can use high molecular material or concrete material；
It is preferential to use polyurethane material, layer of polyurethane by by liquid polyol, isocyanates by being poured into proportion
Chemically reacted and formed in steel pipe cavity；
Preferential, it is 1 by volume by liquid polyol, isocyanates, the glass of 20-200 μm of diameter or ceramic fine bead:
Allocated at 1: 1.5；
The excessively connector is arranged at each main node of power transmission tower；
Preferential, bolt hole, bolt number of perforations and diameter are provided with excessive connector and is set by design envelope value；
Preferential, preferentially use the material same with core in excessive connector；
The connecting elements can select axis pin peg or high-strength bolt, and the number of axis pin peg or bolt is pressed with diameter
Envelope value is calculated to determine.
As shown in Figure 1, there is power transmission tower 420 of the same race in X cities, power transmission tower 4 mainly includes vertical applied force component 41, lateral stressed
Component 42, connecting elements 43 and position of joints 44, build in power transmission tower and use new gusset plate sample in position of joints 44 initial stage
Formula --- jointing 2 (as shown in Figure 3), wherein stiffener 21, connection stiffener 23 can ensure that jointing end 24 exists
Larger displacement is occurred without during short time stress, makes jointing that there is good stability, jointing end 24 be for
When changing vertical applied force component 41 or lateral stressed component 42, the connector of fixed anti-buckling excessively rod piece 1, it is ensured that in the short time
Anti-buckling excessive rod piece is all given in the interior effect that structure is reached to the 41 or lateral stressed component 42 of part vertical applied force component
1, so as to carry out the replacement work of 41 or lateral stressed component 42 of part vertical applied force component.Jointing end 24 is pipe,
Pipe diameter is determined (each component maximum internal force in power transmission tower 4) by design-calculated envelope internal force, on jointing end 24
Jointing end bolt hole 241 number and aperture also determined by design-calculated envelope internal force.Jointing 2 need into
Row is compared with 4 more higher leveled fire prevention of power transmission tower and preservative treatment.Wherein, lateral stressed component 42 uses L80x6, Q345 steel；Section
Contact plate 25 is -12X200X600, Q345 steel；23 use -10X200X300, Q345 steel of stiffener, welding and gusset plate 25
On；Stiffener 21 uses corner cut form, Q345 steel according to actual conditions, and is welded on gusset plate 25 and stiffener 23；Even
Connect fitting end 24 and use length as 100mm, a diameter of 150mm, wall thickness be 10mm seamless steel pipe, Q420 steel；Side connects
241 a diameter of 17mm of fitting end bolt hole is met, up and down each four holes.
After for many years, under the influence of environment, the lateral stressed component 42 in the A portions of power transmission tower 4 goes out a certain power transmission tower 4 in X cities
Uneven corrosion is showed, it is necessary to be replaced.Project work personnel have access to the design data of power transmission tower 4, for the A of power transmission tower 4
The design of lateral stressed component 42 in portion is anti-to bend excessive rod piece 1 (as shown in Figure 2), and profit can be realized by anti-buckling excessively rod piece 1
The replacement compared with 4 defective part of large span power transmission tower is realized with less section.Anti-buckling excessively rod piece 1 includes core component
11st, connecting sleeve 12, sleeve 13, anti-buckling interlayer 14, the first core component upper bolt hole 15, the second core component upper bolt hole
16th, the bolt hole 17 in connecting sleeve, carbon fibre material 18, connecting elements 19.Wherein 42 liang of end segments of the lateral stressed component in A portions
The length of point is 5000mm, and core component 11 uses length as 2500mm, a diameter of 160mm, and wall thickness is the seamless steel pipe of 9mm,
Q420 steel；The first core component upper bolt hole 15, the second core component upper bolt hole 16 are opened on core component 11, it is a diameter of
17mm；Two core components 11 are attached using connecting sleeve 12 and connector 19, and connecting sleeve 12 is using a diameter of
170mm, wall thickness are the seamless steel pipe of 9mm, and Q420 steel, connector 19 is using axis pin form, a diameter of 16mm；Sleeve 13 uses
Become a length of 200mm, thickness as the square tube of 6mm, anti-buckling interlayer 14 uses polyurethane material, and sleeve 13 and anti-buckling interlayer 14 are grown
Spend for 2400mm；Core component 11 is connected integral by connecting elements 19, then sleeve 13 and anti-buckling folder is set on the outside of it
Layer 14, parcel seam is being carried out by carbon fibre material 18, forms anti-buckling excessively rod piece 1.
As shown in figure 4, by superflexion rod piece 1 by connecting elements 3 (using 10.9 grades of M16), the transverse direction in A portions is connected to
On the double hit connector 2 at 42 both ends of primary structure member, then lateral stressed component 42 is removed, replace new lateral stressed component 42, finally
Superflexion rod piece 1 is pulled down, displacement is completed.
Embodiment 2
As shown in Fig. 2 to Fig. 4 and Fig. 6, it is a kind of for the repairing of steel truss tower, replace and maintenance work in anti-buckling replace
Changing device, including anti-buckling excessively rod piece 1, jointing 2 and connecting elements 3, anti-buckling excessively rod piece 1 include core component
11st, connecting sleeve 12, sleeve 13, anti-buckling interlayer 14, the first core component upper bolt hole 15, the second core component upper bolt hole
16th, the bolt hole 17 in connecting sleeve, carbon fibre material 18, connecting elements 19；Jointing 2 includes stiffener 21, gusset plate
Upper replacement component bolt hole 22, connects stiffener 23, jointing end 24, jointing end bolt hole 241, gusset plate
25。
As shown in Figure 1, there is a power transmission tower 3000 of the same race in Y cities, power transmission tower 4 mainly includes vertical applied force component 41, laterally by
Power component 42, connecting elements 43 and position of joints 44, build in power transmission tower and use new gusset plate in position of joints 44 initial stage
Pattern --- jointing 2 (as shown in Figure 3), wherein stiffener 21, connection stiffener 23 can ensure jointing end 24
Larger displacement is occurred without in short time stress, makes jointing that there is good stability, jointing end 24 be
When replacing vertical applied force 41 or lateral stressed component 42 of component, the connector of fixed anti-buckling excessively rod piece 1, it is ensured that in short-term
Anti-buckling excessive bar is all given in the interior effect that structure is reached to the 41 or lateral stressed component 42 of part vertical applied force component
Part 1, so as to carry out the replacement work of 41 or lateral stressed component 42 of part vertical applied force component.Jointing end 24 is circle
Pipe, pipe diameter determine (each component maximum internal force in power transmission tower 4), jointing end 24 by design-calculated envelope internal force
On jointing end bolt hole 241 number and aperture also determined by design-calculated envelope internal force.Jointing 2 needs
Carry out compared with 4 more higher leveled fire prevention of power transmission tower and preservative treatment.Wherein, lateral stressed component 42 uses L120x10, Q345 steel
Material；Gusset plate 25 is -20X300X700, Q345 steel；23 use -16X300X400, Q345 steel of stiffener, welding and node
On plate 25；Stiffener 21 uses corner cut form, Q345 steel according to actual conditions, and is welded in gusset plate 25 and stiffener 23
On；Jointing end 24 uses length as 120mm, a diameter of 200mm, wall thickness be 12mm seamless steel pipe, Q420 steel；One
241 a diameter of 21mm of side jointing end bolt hole, up and down each four holes.
Into after for many years, under the influence of environment, the vertical applied force component 41 in the B portions of power transmission tower 4 goes out a certain power transmission tower 4 in X cities
Uneven corrosion is showed, it is necessary to be replaced.Project work personnel have access to the design data of power transmission tower 4, for the B of power transmission tower 4
The design of vertical applied force component 41 in portion is anti-to bend excessive rod piece 1 (as shown in Figure 2), and profit can be realized by anti-buckling excessively rod piece 1
The replacement compared with 4 defective part of large span power transmission tower is realized with less section.Anti-buckling excessively rod piece 1 includes core component
11st, connecting sleeve 12, sleeve 13, anti-buckling interlayer 14, the first core component upper bolt hole 15, the second core component upper bolt hole
16th, the bolt hole 17 in connecting sleeve, carbon fibre material 18, connecting elements 19.Wherein 42 liang of end segments of the lateral stressed component in A portions
The length of point is 7220mm, and core component 11 uses length as 3600mm, a diameter of 220mm, and wall thickness is the seamless steel pipe of 12mm,
Q420 steel；The first core component upper bolt hole 15, the second core component upper bolt hole 16 are opened on core component 11, it is a diameter of
21mm；Two core components 11 are attached using connecting sleeve 12 and connector 19, and connecting sleeve 12 is using a diameter of
240mm, wall thickness are the seamless steel pipe of 12mm, and Q420 steel, connector 19 is using axis pin form, a diameter of 20mm；Sleeve 13 is adopted
Square tube with a length of 300mm of change, thickness into 6mm, anti-buckling interlayer 14 use polyurethane material, sleeve 13 and anti-buckling interlayer 14
Length is 1700mm；Core component 11 is connected integral by connecting elements 19, then sleeve 13 and anti-buckling is set on the outside of it
Interlayer 14, parcel seam is being carried out by carbon fibre material 18, forms anti-buckling excessively rod piece 1.
As shown in figure 4, superflexion rod piece 1 is connected to the vertical of B portions by connecting elements 3 (using 10.9 grades of M20)
On the double hit connector 2 at 41 both ends of primary structure member, then vertical applied force component 41 is removed, replace new vertical applied force component 41, finally
Superflexion rod piece 1 is pulled down, displacement is completed.
Embodiment 3
As shown in fig. 7, a kind of anti-buckling replacement method in the repairing of steel truss tower, replacement and maintenance work, including
Following steps：
(1) built in power transmission tower and use in position of joints that new gusset plate pattern --- jointing is (such as Fig. 3 institutes initial stage
Show), the number of the bolt hole on jointing end and aperture are also determined by design-calculated envelope internal force.
(2) project work personnel have access to the design data of power transmission tower, and the component design for needing to replace for power transmission tower is prevented bending
Excessive rod piece (as shown in Figure 2).
(3) engineering is processed making according to the design drawings of anti-buckling excessively rod piece, and transports scene to；
(4) superflexion rod piece is connected to by connecting elements on the jointing for needing to replace component both ends, then torn open
Except the component that needs are replaced, new component is replaced, finally pulls down superflexion rod piece, displacement is completed.
The above-mentioned description to embodiment is understood that for ease of those skilled in the art and using the present invention.
Person skilled in the art obviously easily can make these embodiments various modifications, and saying herein
Bright General Principle is applied in other embodiment without by performing creative labour.Therefore the invention is not restricted to reality here
Apply example, those skilled in the art disclose according to the present invention, for the present invention make should into and modification all should be in the present invention
Protection domain within.
Claims (5)
- A kind of 1. anti-buckling alternative in the repairing of steel truss tower, replacement and maintenance work, it is characterised in that：It is described anti- Flexing alternative includes anti-buckling excessively rod piece, jointing and connecting elements, and the anti-buckling excessively rod piece includes core Component, connecting sleeve, sleeve, anti-buckling interlayer and layer of carbon fiber material, two core components are connected by connecting sleeve, every The sleeve is set with outside core component, is anti-buckling interlayer between the core component and sleeve lining, outside the connecting sleeve Layer of carbon fiber material is set；The jointing is including replacing component bolt hole, connection stiffener and jointing end, institute on stiffener, gusset plate State stiffener and connection stiffener is each attached on gusset plate, connected between two stiffeners by the connection stiffener, institute State to set on gusset plate and component bolt hole is replaced on gusset plate, jointing end bolt is set on the jointing end Hole；The jointing is set on each gusset plate with power transmission tower, the both ends of the anti-buckling excessively rod piece respectively with node Jointing on plate is connected by connecting elements.
- 2. as claimed in claim 1 for the anti-buckling alternative in the repairing of steel truss tower, replacement and maintenance work, it is special Sign is：Set on gusset plate and component bolt hole is replaced on the gusset plate being adapted with power transmission tower main component；Connection is put more energy into Plate is crossed welding manner and is connected on gusset plate；, will by welding manner to ensure the inside and outside stability of the plane of connection stiffener Stiffener is connected on gusset plate and connection stiffener；Jointing portion is welded on connection stiffener again；Jointing end Portion's bolt hole is arranged in jointing portion by Force Calculation and forms the jointing.
- 3. rushed to repair as claimed in claim 1 or 2 for steel truss tower, the anti-buckling alternative in replacement and maintenance work, It is characterized in that：First core component upper bolt hole is set respectively on core component and connecting sleeve, on the second core component Bolt hole on bolt hole, connecting sleeve；Two are attached between core component and connecting pipe box by connecting elements；In core Sleeve is set on the outside of heart component, on cross section, core component be located at sleeve scope it is positive in the middle part of.
- A kind of 4. anti-buckling alternative as claimed in claim 1 in the repairing of steel truss tower, replacement and maintenance work The replacement method of realization, it is characterised in that：In power transmission tower component replacement process, anti-buckling excessively rod piece is first passed through into connection Component needs the jointing portion for replacing the jointing at component both ends to be connected with power transmission tower；The component for needing to replace is torn open again Under, then the component for needing to replace is removed, new component is replaced, finally pulls down superflexion rod piece, displacement is completed.
- 5. replacement method as claimed in claim 4, it is characterised in that：The replacement method comprises the following steps：(1) built in power transmission tower and use gusset plate pattern in position of joints initial stage, i.e., described in jointing on jointing end Bolt hole number and aperture also determined by design-calculated envelope internal force；(2) the anti-excessive rod piece in the wrong of component design replaced is needed for power transmission tower；(3) making is processed according to the design drawings of anti-buckling excessively rod piece, and transports scene to；(4) superflexion rod piece is connected to by connecting elements on the jointing for needing to replace component both ends, then removes need The component to be replaced, replaces new component, finally pulls down superflexion rod piece, and displacement is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711415981.6A CN108035607B (en) | 2017-12-25 | 2017-12-25 | Buckling-restrained replacement device and method for rush repair, replacement and maintenance of steel truss tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711415981.6A CN108035607B (en) | 2017-12-25 | 2017-12-25 | Buckling-restrained replacement device and method for rush repair, replacement and maintenance of steel truss tower |
Publications (2)
| Publication Number | Publication Date |
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| CN108035607A true CN108035607A (en) | 2018-05-15 |
| CN108035607B CN108035607B (en) | 2023-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711415981.6A Active CN108035607B (en) | 2017-12-25 | 2017-12-25 | Buckling-restrained replacement device and method for rush repair, replacement and maintenance of steel truss tower |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| CN207988633U (en) * | 2017-12-25 | 2018-10-19 | 杭州市电力设计院有限公司 | For the anti-buckling alternative in the repairing of steel truss tower, replacement and maintenance work |
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| CN101575884A (en) * | 2009-05-27 | 2009-11-11 | 清华大学 | Reinforced-fiber composite constraining anti-buckling energy-consumption steel timbering |
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| CN108035607B (en) | 2023-07-07 |
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