CN106927364B - The antifatigue connection method of steel crane beam and rail - Google Patents
The antifatigue connection method of steel crane beam and rail Download PDFInfo
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- CN106927364B CN106927364B CN201710110196.3A CN201710110196A CN106927364B CN 106927364 B CN106927364 B CN 106927364B CN 201710110196 A CN201710110196 A CN 201710110196A CN 106927364 B CN106927364 B CN 106927364B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C7/00—Runways, tracks or trackways for trolleys or cranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C7/00—Runways, tracks or trackways for trolleys or cranes
- B66C7/08—Constructional features of runway rails or rail mountings
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J163/00—Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J5/00—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
- C09J5/02—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers involving pretreatment of the surfaces to be joined
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2433/00—Presence of (meth)acrylic polymer
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2463/00—Presence of epoxy resin
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- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Inorganic Chemistry (AREA)
- Ceramic Engineering (AREA)
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- Materials Engineering (AREA)
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Abstract
The present invention relates to the antifatigue connection method of a kind of steel crane beam and rail, rail is positioned over the upper surface centre position of the top flange of steel crane beam, the web both sides of steel crane beam are arranged at intervals with ribbed stiffener, two lower limb of rail are pressed on the top flange of steel crane beam by pressing plate, the top flange that pressing plate penetrates steel crane beam by bolt is fixed, and the both sides up and down of pressing plate set upper padding plate and lower bolster respectively；The asphalt concrete layer containing rubber grain is provided between rail and the top flange of steel crane beam, L-type angle steel is provided with the top flange of steel crane beam and web link position, L-type angle steel is symmetrically bonded with the lower surface of top flange and web respectively relative to web located at both sides and close to ribbed stiffener, two points of limbs of L-type angle steel by steel bonding glue.Above-mentioned antifatigue connection method avoids the hard contact between rail and steel crane beam upper surface, reduces fatigue rupture source, enhances the anti-fatigue performance of structure, largely avoid the generation of fatigue phenomenon.
Description
Technical field
The present invention relates to the antifatigue connection method of a kind of steel crane beam and rail, suitable for the skill of structural steel industrial building
Art field.
Background technology
In industrial premises, the application of steel crane beam is quite varied, its can normal operation, directly influence the peace of factory
Full production.However, in reality many steel crane beams and not up to design life just occur getting up early destruction, wherein 80-90%
It is due to caused by fatigue effect.Research shows, the especially large-tonnage heavyweight duty of the steel crane beam in industrial building or
The crane girder of super-heavy weight duty, fatigue damage are serious.Because crane girder has hammering during traveling, therefore make
There is not fatigue damage in the lower flange of tension, and the top flange contacted with crane runway and the attachment weld of web, upper limb
There is the phenomenon of fatigue rupture in the connection of edge and ribbed stiffener.In addition, crane girder is inclined with caused technology in manufacturing process in installation
Difference can make the vertical load wobbler action of crane girder operation on crane girder, so as to produce part in the upper area of crane girder
Twisting action.Clamp rail power and crane transverse horizontal force during being travelled along with crane have aggravated this moment of torsion effect, can make
Into serious stress raisers, the generation of fatigue phenomenon consequently leads to.
As shown in figure 1, which show a kind of connection method of steel crane beam in the prior art and rail.As illustrated,
Rail 10 is placed in the upper surface centre position of the top flange of steel crane beam, and the both sides of web 20 of steel crane beam, which are arranged at intervals with, puts more energy into
Rib 30, the upper limb of ribbed stiffener 30 lean the top flange of steel crane beam and welded with it.Two lower limb of rail 10 pass through pressing plate 103
It is pressed on the top flange of steel crane beam, the top flange that pressing plate 103 penetrates steel crane beam by bolt 104 is fixed, pressing plate 103
Upper and lower both sides set upper padding plate 102 and lower bolster 101 respectively.Because rail 10 is placed directly within steel crane beam in the program, institute
So that hard contact can be formed between the two, it result in and stress concentration is formed between the top flange of steel crane beam and web, easily cause
The generation of fatigue phenomenon.
A kind of steel crane beam fatigue rupture reinforcement means is disclosed in Chinese patent 201310039715.3, as shown in Fig. 2
Angle steel 3 is wherein positioned over to the top flange 1 for crack occur and the junction of web 2, in the both sides of web 2, angle steel 3 is symmetrical arranged,
Web 2, top flange 1 and angle steel 3 are linked into an integrated entity with high-strength bolt 6, high-strength bolt 6 is welded again after tightening, so as to effectively prolong
The service life of crane girder is grown.
Above-mentioned fatigue of steel structures reinforcement means of the prior art is as welded, bolt connection has some limitations,
Such as welding can cause weld defect and residual stress, easily produce that new fatigue crack source, difficulty of construction be big, quality is difficult to protect
Card etc., bolt connection need on original structure perforate so as to weaken section, easily occur stress concentration, be limited to working space,
Easy stress relaxation etc..Therefore seeking a kind of economic, efficient antifatigue connection method, to be that this area is in the urgent need to address ask
Topic.
The content of the invention
The present invention is in order to overcome drawbacks described above of the prior art, it is proposed that one kind avoids connecting using bolt and weld seam as far as possible
The antifatigue connection method connect, it is capable of the anti-fatigue performance of greatly enhancing structure.
According to the antifatigue connection method of the steel crane beam of the present invention and rail, rail is positioned over the top flange of steel crane beam
Upper surface centre position, the web both sides of steel crane beam are arranged at intervals with ribbed stiffener, and two lower limb of rail pass through pressing plate pressure
Put on the top flange of steel crane beam, the top flange that pressing plate penetrates steel crane beam by bolt is fixed, the both sides up and down point of pressing plate
She Zhi not upper padding plate and lower bolster；The bituminous concrete containing rubber grain is provided between rail and the top flange of steel crane beam
Layer, is provided with L-type angle steel, L-type angle steel is symmetrically located at relative to web at the top flange of steel crane beam and web link position
Both sides are simultaneously bonded with the lower surface of top flange and web respectively close to ribbed stiffener, two points of limbs of L-type angle steel by steel bonding glue.
Preferably, be provided with tilt prop between two points of limbs of L-type angle steel, the both ends of tilt prop respectively with L-type angle steel two
It is individual to divide limb to weld.It is also provided with being cast in the built-in fitting in asphalt concrete layer on the upper surface of the top flange of steel crane beam.
Preferably, two points of limb length of L-type angle steel are identical, the width of the top flange of steel crane beam, the width of single ribbed stiffener, L-type
Angle steel divides the length ratio of limb to be 4：1.5：1.
Preferably, the asphalt concrete layer uses asphalt, bisphenol A type epoxy resin and cement as master bond material
Material, it is even by asphalt, bisphenol A type epoxy resin, polyamide curing agent, GMA toughener, silane
Join agent, particle diameter in 1-2.5mm butadiene-styrene rubber particle, particle diameter in 3-3.5mm blinding, the silicon carbide powder of 50-60 mesh, water
Mud, length are 13-25mm carbon fiber, flyash composition, prepare the first component and the second component, the first component respectively during preparation
Mass ratio with the second component is 1：1.6, wherein：
First component is by asphalt, bisphenol A type epoxy resin, polyamide curing agent, GMA
Toughener, silane coupler are 1 according to mass ratio：0.6：0.15：0.08：0.05 composition；
Second component by particle diameter 1-2.5mm blinding, carborundum powder in 3-3.5mm of butadiene-styrene rubber particle, particle diameter
End, cement, carbon fiber, flyash are 1 according to mass ratio：1：0.3：0.15：0.1：0.26 composition；
Its preparation process and construction method are as follows：
(1) asphalt and bisphenol A type epoxy resin are mixed and heated to 135 DEG C in a kettle, are then spaced successively
The 35-40 seconds add GMA toughener, silane coupler and polyamide curing agent, are heated after being sufficiently stirred
To 150 DEG C, it is standby that the first component is made；
(2) each component in the second component is well mixed according to corresponding mass ratio；
(3) after the first component being heated into 160 DEG C, the second component is put into, and 160 are again heated to after being mixed evenly
DEG C, the opening position brushing interfacial agents that pave in top flange, then bituminous concrete is paved the specified location on top flange, drip
The paving material of blue or green concrete is 152-155 DEG C, paving thickness 6cm, and spreading speed is 3.5 ms/min；
(4) rolled twice using pressure roller after the completion of paving, naturally cool to room temperature.
Preferably, the steel bonding glue is 3.8 according to mass ratio by component A and B component:1 it is well mixed be made, A therein
Component is by 45 parts of bisphenol A type epoxy resin, 12 parts of γ aminopropyltriethoxy silane, 10 parts of liquid propene acid esters rubber, ring
3 parts of compositions of Ethylene Oxide butyl ether；B component is by aromatic amine and 25 parts of the composite modified curing agent of aliphatic cyclic amine, 13 parts of silicon carbide powder, gas
4 parts of 17 parts of aerosil thixotropic agent, 28 parts of polyamide, bentonite compositions；
The work progress that L-type angle steel is pasted to crane girder lower flange and web comprises the following steps：
1. a pair position to be pasted is cleaned and polished, to remove surface impurity；
2. above-mentioned component A being put into after being well mixed in reactor and being heated to 80 DEG C, the B component after being well mixed adds
In reactor and be sufficiently stirred, be then heated to 125 DEG C each component is cooled to 62 DEG C after fully reacting that steel bonding glue is made is standby；
3. in the bed boundary agent of opening position brushing one to be pasted, steel bonding glue of the temperature at 62 DEG C is then applied to position to be pasted
Place is put, usage amount is the grams per square meters of 6-7 thousand；
4. waiting the 30-50 seconds, L-type angle steel is pasted into crane girder top flange and web, and kept under 2MPa pressure
At least half an hour；
5. stand 24 hours after removing pressure so that steel bonding glue fully solidifies.
L-type angle steel is glued respectively by steel bonding glue according in the antifatigue connection method of the steel crane beam of the present invention and rail
Tie on steel crane beam, avoid using bolt and solder design, reduce fatigue rupture source；Meanwhile in rail and steel crane beam
Between be additionally provided with the asphalt concrete layer of flexible cushioning effect, further enhancing the anti-fatigue performance of structure, greatly
Ground avoids the generation of fatigue phenomenon, and is easily repaired.
Brief description of the drawings
Fig. 1 shows a kind of connection method of steel crane beam in the prior art and rail.
Fig. 2 shows a kind of reinforcement means of the antifatigue destruction of steel crane beam of the prior art.
Fig. 3 shows the schematic diagram of the antifatigue connection method of the steel crane beam and rail according to the present invention.
Fig. 4 shows the A-A sectional views in Fig. 3.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, below in conjunction with accompanying drawing to the present invention
Embodiment be described in detail.It should be noted that in the case where not conflicting, in the embodiment and embodiment in the application
Feature can mutually be combined.
As shown in figure 3, which show the signal of the antifatigue connection method of the steel crane beam according to the present invention and rail
Figure, steel crane beam is I-shaped die.Rail 10 is placed in the upper surface centre position of the top flange of steel crane beam, the abdomen of steel crane beam
The both sides of plate 20 are arranged at intervals with ribbed stiffener 30, and the upper limb of ribbed stiffener 30 leans the top flange of steel crane beam and welded with it.Rail
10 two lower limb are pressed on the top flange of steel crane beam by pressing plate 103, and pressing plate 103 penetrates steel crane by bolt 104
The top flange of beam is fixed, and the both sides up and down of pressing plate 103 set upper padding plate 102 and lower bolster 101 respectively.The antifatigue company of the present invention
Connect method includes following two aspects relative to the improvement of the prior art shown in Fig. 1：
(1) as shown in figure 3, being provided with the bituminous concrete containing rubber grain between rail 10 and the top flange of steel crane beam
Layer 105, its effect is that elastic cord breaker is formed between rail and steel crane beam, hard contact between the two is prevented, so as to carry
High overall anti-fatigue performance.
(2) as shown in Figure 3-4, L-type angle steel 21, L-type angle are provided with the top flange of steel crane beam and web link position
Steel 21 is relative to web 20 symmetrically located at both sides and close to ribbed stiffener 30.Two points of limbs of L-type angle steel 21 pass through steel bonding glue point
Do not bonded with the lower surface of top flange and web.With in the prior art by welding or bolt connection L-type angle steel technology compared with,
The present invention fixes L-type angle steel using steel bonding glue can greatly reduce the possibility of fatigue failure, and easy for construction, quick.
Preferably, be also provided with tilt prop 22 between two points of limbs of L-type angle steel 21, the both ends of tilt prop 22 respectively with L-type angle
Two points of limbs of steel 21 weld.
The present invention sets asphalt concrete layer between rail and the top flange of steel crane beam, can be greatly enhanced structure
Anti-fatigue performance.Because bituminous concrete not only has good elasticity, but also has the advantages that cohesive force is strong.Applicant
For the demand, a kind of new asphalt concrete material containing rubber grain is also developed, can be perfectly suitable for
It is filled between the rail of the present invention and the top flange of steel crane beam.
According to the asphalt concrete layer of the present invention using asphalt, bisphenol A type epoxy resin and cement as master bond
Material, by asphalt, bisphenol A type epoxy resin, polyamide curing agent, GMA toughener, silane
Butadiene-styrene rubber particle, the particle diameter of coupling agent, particle diameter in 1-2.5mm are fine in 3-3.5mm blinding, silicon carbide powder, cement, carbon
Dimension, flyash composition, prepare the first component and the second component during preparation respectively, and the mass ratio of the first component and the second component is 1：
1.6, wherein：
First component is by asphalt, bisphenol A type epoxy resin, polyamide curing agent, GMA
Toughener, silane coupler are 1 according to mass ratio：0.6：0.15：0.08：0.05 composition；
Second component by particle diameter 1-2.5mm blinding, carborundum powder in 3-3.5mm of butadiene-styrene rubber particle, particle diameter
End, cement, carbon fiber, flyash are 1 according to mass ratio：1：0.3：0.15：0.1：0.26 composition；
Its preparation process and construction method are as follows：
(1) asphalt and bisphenol A type epoxy resin are mixed and heated to 135 DEG C in a kettle, then sequentially added
GMA toughener, silane coupler and polyamide curing agent, 150 DEG C are heated to after being sufficiently stirred, system
It is standby to obtain the first component；Preferably, GMA toughener, silane coupler and polyamide curing agent plus
The angle of incidence is at intervals of the 35-40 seconds；
(2) each component in the second component is well mixed according to corresponding mass ratio；
(3) after the first component being heated into 160 DEG C, the second component is put into, and 160 are again heated to after being mixed evenly
DEG C, bituminous concrete is paved the specified location on steel crane beam top flange, the paving material of bituminous concrete is 152-155
DEG C, paving thickness 6cm, spreading speed is 3.5 ms/min；Preferably, can be first in the position that paves of top flange before paving
Place's brushing interfacial agents are put, to improve the adhesive property of adhesive surface；
(4) rolled twice using pressure roller after the completion of paving, naturally cool to room temperature.
Preferably, above-mentioned silane coupler can be γ-amine propyl-triethoxysilicane, γ-aminopropyl trimethoxysilane
Or any of 3- aminopropyl trimethoxysilanes；The fineness of silicon carbide powder is 50-60 mesh；The length of carbon fiber is 13-
25mm。
Preferably, two points of limb length of L-type angle steel are identical, the width of steel crane beam top flange, the width of single ribbed stiffener
Degree, L-type angle steel divide the length ratio of limb to be 4:1.5:1.By the Combination Design of above-mentioned each parameter, rail and steel is enabled to hang
The stress of bicycle beam is more reasonable, and anti-fatigue performance is higher.Meanwhile in order to improve between bituminous concrete and steel crane beam top flange
Cohesive force, can also be on top flange integrally formed with anchoring piece, it is embedded in bituminous concrete when pouring, and treats pitch
It is in combination integral after concrete hardening, to strengthen anchor force.
Another key technology of the present invention is, passes through steel bonding glue at the top flange of steel crane beam and web link position
It is bonded with L-type angle steel.Wherein, steel bonding glue is the bisphenol A-type modified epoxy structure glue of A, B bi-component, has superpower bonding
Power, shearing force are strong, anti-aging, shock resistance is strong, and normal temperature cure, hardening process contraction are small, can be applied in wide temperature range
Work.
Steel bonding glue in the application is 3.8 according to mass ratio by component A and B component:1 it is well mixed be made, A groups therein
Divide by bisphenol A type epoxy resin 45 parts (mass fractions, similarly hereinafter), 12 parts of γ aminopropyltriethoxy silane, liquid propene acid
3 parts of 10 parts of ester rubber, epoxy propane butyl ether compositions；B component is by aromatic amine and 25 parts of the composite modified curing agent of aliphatic cyclic amine, carbonization
4 parts of 13 parts of Si powder, 17 parts of aerosil thixotropic agent, 28 parts of polyamide, bentonite compositions.Steel bonding glue is made at the construction field (site)
Make, can so make full use of the bonding characteristic of glue, it has been given play to optimal bond effect in the best condition.
L-type angle steel is pasted including following by the work progress of crane girder lower flange and web using the steel bonding glue of the application
Step：
1. a pair position to be pasted is cleaned and polished, to remove surface impurity；
2. above-mentioned component A being put into after being well mixed in reactor and being heated to 80 DEG C, the B component after being well mixed adds
In reactor and be sufficiently stirred, be then heated to 125 DEG C each component is cooled to 62 DEG C after fully reacting that steel bonding glue is made is standby；
3. in the bed boundary agent of opening position brushing one to be pasted, steel bonding glue of the temperature at 62 DEG C is then applied to position to be pasted
Place is put, usage amount is the grams per square meters of 6-7 thousand；
4. waiting the 30-50 seconds, L-type angle steel is pasted into crane girder top flange and web, and kept under 2MPa pressure
At least half an hour；
5. stand 24 hours after removing pressure so that steel bonding glue fully solidifies.
Set according in the antifatigue connection method of the steel crane beam of the present invention and rail between rail and steel crane beam
Asphalt concrete layer containing rubber grain, avoid the hard contact between rail and steel crane beam upper surface；In addition, by viscous
L-type angle steel is bonded on steel crane beam by steel glue respectively, is avoided using bolt and solder design, is reduced fatigue rupture source, is increased
The strong anti-fatigue performance of structure, largely avoid the generation of fatigue phenomenon, and be easily repaired.
Although disclosed herein embodiment as above, described content only to facilitate understand the present invention and adopt
Embodiment, it is not limited to the present invention.Any those skilled in the art to which this invention pertains, this is not being departed from
On the premise of the disclosed spirit and scope of invention, any modification and change can be made in the implementing form and in details,
But the scope of patent protection of the present invention, still should be subject to the scope of the claims as defined in the appended claims.
Claims (5)
1. the antifatigue connection method of a kind of steel crane beam and rail, the rail are positioned over the top flange of the steel crane beam
Upper surface centre position, the web both sides of the steel crane beam are arranged at intervals with ribbed stiffener, and two lower limb of the rail pass through
Pressing plate is pressed on the top flange of the steel crane beam, and the top flange that the pressing plate penetrates the steel crane beam by bolt is consolidated
Fixed, the both sides up and down of the pressing plate set upper padding plate and lower bolster respectively；Characterized in that,
The asphalt concrete layer containing rubber grain is provided between rail and the top flange of steel crane beam, in the upper limb of steel crane beam
L-type angle steel is provided with edge and web link position, the L-type angle steel symmetrically adds relative to web located at both sides and close to described
Strength rib, two points of limbs of the L-type angle steel are bonded with the lower surface of top flange and web respectively by steel bonding glue；
The asphalt concrete layer, as primary binder, is dripped using asphalt, bisphenol A type epoxy resin and cement by oil
Green grass or young crops, bisphenol A type epoxy resin, polyamide curing agent, GMA toughener, silane coupler, particle diameter exist
1-2.5mm butadiene-styrene rubber particle, particle diameter be in 3-3.5mm blinding, the silicon carbide powder of 50-60 mesh, cement, length
13-25mm carbon fiber, flyash composition, prepare the first component and the second component during preparation respectively, the first component and second group
The mass ratio divided is 1：1.6, wherein：
First component is by asphalt, bisphenol A type epoxy resin, polyamide curing agent, GMA toughness reinforcing
Agent, silane coupler are 1 according to mass ratio：0.6：0.15：0.08：0.05 composition；
Second component by particle diameter 1-2.5mm butadiene-styrene rubber particle, particle diameter 3-3.5mm blinding, silicon carbide powder, water
Mud, carbon fiber, flyash are 1 according to mass ratio：1：0.3：0.15：0.1：0.26 composition；
Its preparation process and construction method are as follows：
(1) asphalt and bisphenol A type epoxy resin are mixed and heated to 135 DEG C in a kettle, are then spaced 35-40 successively
Second adds GMA toughener, silane coupler and polyamide curing agent, and 150 are heated to after being sufficiently stirred
DEG C, it is standby that the first component is made；
(2) each component in the second component is well mixed according to corresponding mass ratio；
(3) after the first component being heated into 160 DEG C, the second component is put into, and 160 DEG C are again heated to after being mixed evenly,
The opening position brushing interfacial agents that pave in top flange, then bituminous concrete is paved the specified location on top flange, pitch
The paving material of concrete is 152-155 DEG C, paving thickness 6cm, and spreading speed is 3.5 ms/min；
(4) rolled twice using pressure roller after the completion of paving, naturally cool to room temperature.
2. antifatigue connection method according to claim 1, it is characterised in that between two points of limbs of the L-type angle steel
Provided with tilt prop, the two points of limbs of the both ends of the tilt prop respectively with the L-type angle steel weld.
3. antifatigue connection method according to claim 1 or 2, it is characterised in that the length of two points of limbs of L-type angle steel
Identical, the width of the top flange of the steel crane beam, the width of single ribbed stiffener, L-type angle steel divide the length ratio of limb to be 4：
1.5：1.
4. antifatigue connection method according to claim 1 or 2, it is characterised in that the top flange of the steel crane beam
Upper surface is provided with the built-in fitting being cast in asphalt concrete layer.
5. antifatigue connection method according to claim 1 or 2, it is characterised in that the steel bonding glue is by component A and B groups
It is 3.8 to divide according to mass ratio:1 it is well mixed be made, component A therein is by 45 parts of bisphenol A type epoxy resin, gamma-amino propyl group
3 parts of 12 parts of triethoxysilane, 10 parts of liquid propene acid esters rubber, epoxy propane butyl ether compositions；B component is by aromatic amine and fat
25 parts of the composite modified curing agent of cyclammonium, 13 parts of silicon carbide powder, 17 parts of aerosil thixotropic agent, 28 parts of polyamide, swelling
4 parts of compositions of soil；
The work progress that L-type angle steel is pasted to crane girder lower flange and web comprises the following steps：
(1) position to be pasted is cleaned and polished, to remove surface impurity；
(2) above-mentioned component A is put into after being well mixed in reactor and is heated to 80 DEG C, the B component after being well mixed adds anti-
Answer in kettle and be sufficiently stirred, be then heated to 125 DEG C each component is cooled to 62 DEG C after fully reacting that steel bonding glue is made is standby；
(3) in the bed boundary agent of opening position brushing one to be pasted, steel bonding glue of the temperature at 62 DEG C is then applied to position to be pasted
Place, usage amount is the grams per square meters of 6-7 thousand；
(4) the 30-50 seconds are waited, L-type angle steel are pasted into crane girder top flange and web, and kept at least under 2MPa pressure
Half an hour；
(5) 24 hours are stood after removing pressure so that steel bonding glue fully solidifies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710110196.3A CN106927364B (en) | 2017-02-27 | 2017-02-27 | The antifatigue connection method of steel crane beam and rail |
Applications Claiming Priority (1)
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| CN107381344A (en) * | 2017-07-20 | 2017-11-24 | 中船第九设计研究院工程有限公司 | A kind of steel beam for crane resistant slide structure |
| CN107790954A (en) * | 2017-10-21 | 2018-03-13 | 山东东华水泥有限公司 | A kind of online quick maintenance method of large-sized grinder crawler shoe band and special tooling |
| CN108178065A (en) * | 2017-12-30 | 2018-06-19 | 天津市新宇彩板有限公司 | The fixed structure of mill crane beam |
| CN109052162A (en) * | 2018-08-08 | 2018-12-21 | 太原重工工程技术有限公司 | Crane runway mounting device and installation method |
| CN113581247B (en) * | 2020-04-30 | 2022-10-18 | 比亚迪股份有限公司 | Axle counting device and system of railway vehicle |
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| WO2014129185A1 (en) * | 2013-02-21 | 2014-08-28 | 株式会社今井鉄工所 | Rail fastening element and rail fastening process |
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| CN1488810A (en) * | 2003-07-26 | 2004-04-14 | 尹学军 | Elastic pad |
| CN202705820U (en) * | 2012-06-28 | 2013-01-30 | 纪军付 | Single rail fixing device |
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