CN108330752A - A kind of construction method of the prefabricated assembled steel-HPC combined tracks beam of straddle-type monorail - Google Patents
A kind of construction method of the prefabricated assembled steel-HPC combined tracks beam of straddle-type monorail Download PDFInfo
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- CN108330752A CN108330752A CN201810399830.4A CN201810399830A CN108330752A CN 108330752 A CN108330752 A CN 108330752A CN 201810399830 A CN201810399830 A CN 201810399830A CN 108330752 A CN108330752 A CN 108330752A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B25/00—Tracks for special kinds of railways
- E01B25/08—Tracks for mono-rails with centre of gravity of vehicle above the load-bearing rail
- E01B25/10—Mono-rails; Auxiliary balancing rails; Supports or connections for rails
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Abstract
The invention discloses the construction methods of the prefabricated assembled steel HPC combined track beams of straddle-type monorail, include the following steps A steel casees made by beam making field, prefabricated HPC plates；Connecting component is arranged in the wet seam section in each of B steel box top；Prefabricated HPC plates are arranged and are positioned on steel case by C, are corresponding wet seam section between two neighboring prefabricated HPC plates；D pours all wet seams, and all prefabricated HPC plates are connected to steel box-shaped into beam body；Beam body is transported to installation site and is installed on pier stud by E.With the construction method, steel boxboard part, that batch production standard can be used in prefabricated HPC plates is quick prefabricated, greatly reduce the risk for pouring and generating a large amount of contraction fissures, the additional stress of the generation of systolic dyssynchrony between top concrete and lower part steel case is eliminated, steel case web is not extend to back, and HPC plates not prefabricated to top generate package effect of contraction, ensure that it shrinks freely, this process simplify construction technologies, shorten the construction period, reduce influence of the situ wet operation to environment.
Description
Technical field
The present invention relates to field of track traffic, more particularly to a kind of prefabricated assembled steel-HPC (High of straddle-type monorail
Performance Concrete, high performance concrete) combined track beam construction method.
Background technology
Cross-saddle single-track traffic is different from traditional rail traffic, is shuttled among city in the form of by overpass, is one
Kind relatively new system of rail traffic, track girder are supported on pier stud, and train encircles traveling in track girder above, directive wheel with
Steady wheel is respectively acting on the top and the bottom of track girder two sides.Cross-saddle single-track traffic is high, right due to city space utilization rate
Along thread environment influence it is small, construction cost is relatively low, adapts to abrupt slope sharp turn, in Construction of Urban Rail Traffic have it is very strong
Adaptability is a kind of resource-effective, environmental-friendly system of rail traffic, will become the important side of future track transport development
To.
Traditional straddle-type monorail steel-mixes combined track beam top and casting concrete, two coxostermum of steel case is used to extend to
Back wraps up concrete, in concrete coagulation hardening process and there are problems that contraction under effect of environmental temperature, for increasing outside
The HPC (high performance concrete) of water-reducing agent is imitated, contraction problem is more serious, since casting concrete is in package about pencil
State, can not free shrink, the stress that blockage effect generates crosses senior general and leads to concrete cracking, influences the durability of structure and complete
Property, meanwhile, lower part uses steel box structure, and due to material sex differernce, expanding with heat and contract with cold for steel is asynchronous in concrete, causes to pour
The joint face of concrete and steel generates additional stress, keeps inherently weaker joint face stress more complicated, makes coagulation
Soil easy tos produce crack, or even comes to nothing, meanwhile, poured in place concrete, construction technology is complicated, influences the construction period, matter of constructing
Amount is also difficult to be protected.
Invention content
It is an object of the invention to overcome the existing straddle-type monorail steel-in the presence of the prior art to mix combined track beam
In concrete coagulation hardening process and there is contraction in structure, under effect of environmental temperature since casting concrete is in packet
Wrap up in restrained condition, can not free shrink, the stress that blockage effect generates crosses senior general and leads to concrete cracking, influences the durable of structure
Property and integrality, lower part use steel box structure, due to material sex differernce, expanding with heat and contract with cold for steel is asynchronous in concrete, causes
The joint face of casting concrete and steel generates additional stress, keeps inherently weaker joint face stress more complicated, makes
Concrete easy tos produce crack, or even the above-mentioned deficiency come to nothing, and provides a kind of prefabricated assembled steel-HPC combinations of straddle-type monorail
The construction method of track girder.
In order to achieve the above-mentioned object of the invention, the present invention provides following technical schemes：
A kind of construction method of the prefabricated assembled steel-HPC combined tracks beam of straddle-type monorail, includes the following steps：
A, the steel case made by beam making field, prefabricated HPC plates；
B, connecting component is arranged in the wet seam section in each of described steel box top；
C, the prefabricated HPC plates are arranged and are positioned on the steel case, be pair between the two neighboring prefabricated HPC plates
The wet seam section answered；
D, all wet seams are poured, all prefabricated HPC plates are connected to the steel box-shaped into beam body；
E, the beam body is transported to installation site and is installed on pier stud.
Using a kind of construction method of the prefabricated assembled steel-HPC combined tracks beam of straddle-type monorail of the present invention, steel
Boxboard part, prefabricated HPC plates can be used that batch production standard is quick prefabricated, greatly reduce the wind for pouring and generating a large amount of contraction fissures
Danger, eliminates the additional stress of the generation of systolic dyssynchrony between top concrete and lower part steel case, and steel case web is not extend to beam
Top, HPC plates not prefabricated to top generate package effect of contraction, ensure that it shrinks freely, pour wet seam, pre- by adjacent two
While HPC plates connection processed, wet seam wraps up connecting component, and prefabricated HPC plates are connected to steel case, construction method step letter
It is single, it is easy to operate, construction technology is simplified, construction period, prefabrication are shortened, in-site installation reduces situ wet operation
Influence to environment.
Preferably, bearing is equipped between the steel case and the pier stud.
Preferably, several extension lengthways main steel bars are equipped at each prefabricated HPC plate end faces, after executing the step C,
The extension lengthways main steel bar between the two neighboring prefabricated HPC plates is corresponded into overlap joint setting, then executes the step D.
Preferably, each connecting component includes several shearing pegs, and each connecting component includes all
The shearing peg is arranged along the corresponding wet seam length direction.
Preferably, all shearing pegs are welded on the steel box top.
Using this structure setting, shearing peg only is set in wet seam crossing and is welded on steel box top, is greatly reduced
The dosage of shearing peg and welding job amount, reduce the welding damage to steel box top, reduce the duration.
Preferably, the steel case includes web and top plate, and the top plate is equipped with opening, and the top plate is made to form two phases
To the structural slab of setting, each structural slab is connected on the corresponding web.
It, can only be outside top plate and web when top plate is welded to connect web since existing steel box structure is that a sealing is whole
Welding procedure on the connecting line of side, top plate are difficult to securely connect with web inner side connection wire, this using opening is equipped on top plate
Structure setting can construct to the interior outside connecting line full penetration of top plate and web, ensure welding quality, increase steel box structure
Stability, while rolled steel dosage has been saved, the dead weight of steel box structure is alleviated, cost has been saved.
Preferably, after executing the step D, all prefabricated HPC plates are sealedly attached to the top plate, then execute described
Step E.
Since top plate is equipped with opening, the track girder of outdoor layout in operation, rainwater can from the prefabricated HPC plates with
Gap between top plate enters opening, inside steel case, although and anti-corrosion structure is equipped with outside steel case, due to
Cost control, steel case inside usually lack anti-corrosion structure, and rainwater causes brokenly the generation corrosion of steel case internal structure into membership
It is bad, this structure setting of top plate is sealedly attached to using prefabricated HPC plates, steel case is with prefabricated HPC board groups at a confined space, energy
Enough it effectively prevent erosion of the external environmental factor to steel case internal structure.
Preferably, structural silicone adhesive sealed connection is filled between all prefabricated HPC plates and the top plate.
Preferably, after executing the step D, by the steel case end part seal, confined space in steel case is formed, at bridge operation
The maintenance outside steel case and maintenance need to be only carried out afterwards.
Preferably, each wet seam crossing is correspondingly provided with a connecting plate, and the both ends of each connecting plate connect respectively
It is connected on two structural slabs, each connecting component is set along structural slab described in the corresponding connecting plate and its both ends
It sets.
Using this structure setting, the bonding strength between each connecting component and steel case is increased, it is pre- to increase
Bonding strength between HPC plates and steel case processed.
Preferably, each connecting component includes several shearing pegs, the shearing peg on the connecting plate
Spaced set.
Preferably, further include drip, the width of the prefabricated HPC plates is more than the width of the top plate, the prefabricated HPC
Plate two bottom sides stretch out the top plate, and the prefabricated HPC plates base projection is respectively set the drip, prevents
Rainwater flows to bottom along the prefabricated HPC plates side wall, then flows to the top plate of the steel case and the web again, and opening
It is piled up in the intersection of the prefabricated HPC plates and the steel case under the action of power, the steel case is caused to corrode.
The present invention also provides a kind of construction methods of the prefabricated assembled steel-HPC combined tracks beam of straddle-type monorail, including
Following steps：
A, several vertical through holes are arranged on the prefabricated HPC plates in the steel case made by beam making field, prefabricated HPC plates；
B, connecting component is arranged in the corresponding steel box top of each through-hole；
C, the prefabricated HPC plates are arranged and are positioned on the steel case, keep each connecting component adaptation corresponding
The through-hole；
D, all through-holes are poured, all prefabricated HPC plates are connected to the steel box-shaped into beam body；
E, the beam body is transported to installation site and is installed on pier stud.
Using a kind of construction method of the prefabricated assembled steel-HPC combined tracks beam of straddle-type monorail of the present invention, steel
Boxboard part, prefabricated HPC plates can be used that batch production standard is quick prefabricated, greatly reduce the wind for pouring and generating a large amount of contraction fissures
Danger, eliminates the additional stress of the generation of systolic dyssynchrony between top concrete and lower part steel case, and steel case web is not extend to beam
Top, HPC plates not prefabricated to top generate package effect of contraction, ensure that it shrinks freely, pour through-hole, and inner concrete package connects
Prefabricated HPC plates are connected to steel case by relay part, and the construction method step is simple, easy to operate, simplifies construction technology, are shortened
Construction period, prefabrication, in-site installation reduce influence of the situ wet operation to environment.
Preferably, each through-hole is less than the port of the other side close to the port of steel box top side.
Using this structure setting, through-hole has upper and lower position-limiting action after pouring to prefabricated HPC plates.
Preferably, the steel case includes web and top plate, and the top plate is equipped with opening, and the top plate is made to form two phases
To the structural slab of setting, each structural slab is connected on the corresponding web, and each prefabricated HPC plates are along track girder
Several through-holes are respectively set in longitudinal both sides, the setting connection corresponding with the through-hole on each structural slab
Component.
In conclusion by adopting the above-described technical solution, the beneficial effects of the invention are as follows：
1, with a kind of construction method of the prefabricated assembled steel-HPC combined tracks beam of straddle-type monorail of the present invention,
Steel boxboard part, prefabricated HPC plates can be used that batch production standard is quick prefabricated, greatly reduce to pour and generate a large amount of contraction fissures
Risk, eliminates the additional stress of the generation of systolic dyssynchrony between top concrete and lower part steel case, and steel case web is not extend to
Back, HPC plates not prefabricated to top generate package effect of contraction, ensure that it shrinks freely, wet seam are poured, by adjacent two
While prefabricated HPC plates connection, wet seam wraps up connecting component, and prefabricated HPC plates are connected to steel case, construction method step letter
It is single, it is easy to operate, construction technology is simplified, construction period, prefabrication are shortened, in-site installation reduces situ wet operation
Influence to environment；
2, with a kind of construction method of the prefabricated assembled steel-HPC combined tracks beam of straddle-type monorail of the present invention,
Each connecting component includes several shearing pegs, and all shearing pegs that each connecting component includes are along right
The wet seam length direction setting answered, all shearing pegs are welded on the steel box top, using this structure
Setting is only arranged shearing peg in wet seam crossing and is welded on steel box top, considerably reduces dosage and the weldering of shearing peg
Workload is connect, the welding damage to steel box top is reduced, reduces the duration；
3, with a kind of construction method of the prefabricated assembled steel-HPC combined tracks beam of straddle-type monorail of the present invention,
Using this structure setting that is open is equipped on top plate, can construct to the interior outside connecting line full penetration of top plate and web,
Ensure welding quality, increase steel box structure stability, while having saved rolled steel dosage, alleviates the dead weight of steel box structure, save
Cost；
4, with a kind of construction method of the prefabricated assembled steel-HPC combined tracks beam of straddle-type monorail of the present invention,
This structure setting of top plate is sealedly attached to using prefabricated HPC plates, steel case and prefabricated HPC board groups, can at a confined space
It effectively prevent erosion of the external environmental factor to steel case internal structure；
5, with a kind of construction method of the prefabricated assembled steel-HPC combined tracks beam of straddle-type monorail of the present invention,
Each wet seam crossing is correspondingly provided with a connecting plate, and the both ends of each connecting plate are connected to two structures
On plate, each connecting component is arranged along structural slab described in the corresponding connecting plate and its both ends, is set using this structure
It sets, increases the bonding strength between each connecting component and steel case, to increase the connection between prefabricated HPC plates and steel case
Intensity；
6, with a kind of construction method of the prefabricated assembled steel-HPC combined tracks beam of straddle-type monorail of the present invention,
Steel boxboard part, prefabricated HPC plates can be used that batch production standard is quick prefabricated, greatly reduce to pour and generate a large amount of contraction fissures
Risk, eliminates the additional stress of the generation of systolic dyssynchrony between top concrete and lower part steel case, and steel case web is not extend to
Back, HPC plates not prefabricated to top generate package effect of contraction, ensure that it shrinks freely, pour through-hole, inner concrete package
Prefabricated HPC plates are connected to steel case by connecting component, and the construction method step is simple, easy to operate, simplifies construction technology, contracting
Short construction period, prefabrication, in-site installation reduce influence of the situ wet operation to environment；
7, with a kind of construction method of the prefabricated assembled steel-HPC combined tracks beam of straddle-type monorail of the present invention,
Each through-hole is less than the port of the other side close to the port of steel box top side, using this structure setting, through-hole
There is upper and lower position-limiting action to prefabricated HPC plates after pouring.
Description of the drawings
Fig. 1 is the schematic diagram that steel case is made in embodiment 1；
Fig. 2 is the schematic diagram that connecting component is arranged in the wet seam section in each of steel box top in embodiment 1；
Fig. 3 is hoisting prefabricated HPC plates and to be positioned at the schematic diagram of steel case in embodiment 1；
Fig. 4 is that the schematic diagram that wet seam connects steel case and prefabricated HPC plates form beam body is poured in embodiment 1；
Fig. 5 is that beam body transports to installation site and is lifted into the schematic diagram of pier stud in embodiment 1；
Fig. 6 is a kind of partial schematic sectional view of structure of combined track beam described in embodiment 1；
Fig. 7 is the partial schematic sectional view of another structure of combined track beam described in embodiment 1；
Fig. 8 is the schematic side view for the combined track beam that Fig. 6 or Fig. 7 is used；
Fig. 9 is a kind of partial schematic sectional view of structure of combined track beam described in embodiment 2；
Figure 10 is the schematic side view for the combined track beam that Fig. 9 is used；
Figure 11 is that the right side for the combined track beam that Fig. 8 or Figure 10 is used regards schematic diagram；
Figure 12 is the schematic diagram for the combined track beam that drip is equipped in Figure 11.
It is marked in figure：1- steel casees, 11- webs, 12- top plates, 13- openings, the prefabricated HPC plates of 2-, 21- extension lengthways main steel bars,
22- through-holes, the wet seams of 3-, 4- connecting components, 5- connecting plates, 6- pier studs, 7- drips.
Specific implementation mode
With reference to test example and specific implementation mode, the present invention is described in further detail.But this should not be understood
It is only limitted to embodiment below for the range of the above-mentioned theme of the present invention, it is all that this is belonged to based on the technology that the content of present invention is realized
The range of invention.
Embodiment 1
As shown in Fig. 1-8,11 and 12, a kind of prefabricated assembled steel-HPC combined tracks of straddle-type monorail of the present invention
The construction method of beam, includes the following steps：
A, as shown in Figure 1, the steel case 1 made by beam making field, prefabricated HPC plates 2；
B, as shown in Fig. 2, connecting component 4 is arranged in each of 1 top of the steel case 3 section of wet seam；
C, as shown in figure 3, hoisting prefabricated HPC plates 2 and being positioned on the steel case 1, the two neighboring prefabricated HPC plates 2
Between be corresponding 3 section of wet seam, wherein to be equipped with several extensions longitudinally main for each prefabricated 2 endface of HPC plates
Muscle 21；
D, the extension lengthways main steel bar 21 between the two neighboring prefabricated HPC plates 2 is corresponded into overlap joint setting；
E, as shown in figure 4, pouring all wet seams 3, all prefabricated HPC plates 2 are connected to 1 shape of steel case
At beam body；
F, structural silicone adhesive sealed connection is filled between 1 top of all prefabricated HPC plates 2 and the steel case；
G, by 1 end part seal of steel case, confined space in steel case 1 is formed；
H, as shown in figure 5, the beam body is transported to installation site and is lifted on pier stud 6.
Wherein, the length of each prefabricated HPC plates 2 is less than or equal to 8 meters, between the steel case 1 and the pier stud 6
Equipped with bearing.
As a preferred embodiment of the present embodiment, as shown in Figures 6 and 7, each connecting component 4 is cut including several
Power peg, all shearing pegs that each connecting component 4 includes are set along corresponding 3 length direction of wet seam
It sets, all shearing pegs are welded on 1 top of the steel case, using this structure setting, are only arranged at wet seam 3 and are cut
Power peg is simultaneously welded on 1 top of steel case, considerably reduces the dosage and welding job amount of shearing peg, reduces to steel case 1
The welding damage at top, reduces the duration.
As a preferred embodiment of the present embodiment, as shown in Figures 6 and 7, the steel case 1 includes web 11 and top plate 12,
The top plate 12 is equipped with opening 13, and the top plate 12 is made to form two structural slabs being oppositely arranged, and each structural slab connects
It is connected on the corresponding web 11, since existing steel box structure is that a sealing is whole, when top plate 12 is welded to connect web 11,
It can only be difficult to securely connect with 11 inner side connection wire of web in top plate 12 and welding procedure on 11 outside connecting line of web, top plate 12
It connects, it, can be to the interior outside connecting line fine melt of top plate 12 and web 11 using 13 this structure settings of opening are equipped on top plate 12
Saturating welding procedure ensures welding quality, increases by 1 structural stability of steel case, while having saved rolled steel dosage, alleviates 1 knot of steel case
Structure is conducted oneself with dignity, and cost has been saved.
As a preferred embodiment of the present embodiment, all prefabricated HPC plates 2 are sealedly attached to the top plate 12, by
It is equipped with opening 13 in top plate 12, for the track girder of outdoor layout in operation, rainwater can be from the prefabricated HPC plates 2 and top plate
Gap between 12 enters opening 13, inside steel case 1, although and the outside of steel case 1 is equipped with anti-corrosion structure, by
In cost control, 1 inside of steel case usually lacks anti-corrosion structure, and rainwater makes the generation corrosion of 1 internal structure of steel case into membership
At destruction, 12 this structure setting of top plate is sealedly attached to using prefabricated HPC plates 2, steel case 1 and prefabricated HPC plates 2 composition one are close
Space is closed, erosion of the external environmental factor to 1 internal structure of steel case can be effectively prevent.
As a preferred embodiment of the present embodiment, as shown in fig. 7, being correspondingly provided with a company at each wet seam 3
The both ends of fishplate bar 5, each connecting plate 5 are connected on two structural slabs, and each connecting component 4 is along correspondence
The connecting plate 5 and its both ends described in structural slab setting, using this structure setting, increase each connecting component 4 and steel
Bonding strength between case 1, to increase the bonding strength between prefabricated HPC plates 2 and steel case 1；Each connecting component 4
Including several shearing pegs, the shearing peg spaced set on the connecting plate 5.
Further include drip 7 as shown in figure 12 as a preferred embodiment of the present embodiment, the prefabricated HPC plates 2
Width is more than the width of the top plate 12, and prefabricated 2 two bottom sides of HPC plates stretch out the top plate 12, described prefabricated
The drip 7 is respectively set in 2 base projection of HPC plates, prevents rainwater from flowing to bottom along prefabricated 2 side wall of HPC plates, and
The top plate 12 and the web 11 of the steel case 1 are flowed to again afterwards, and is piled up in the prefabricated HPC plates under tension
2 and the steel case 1 intersection, the steel case 1 is caused to corrode.
With a kind of construction method of the prefabricated assembled steel-HPC combined tracks beam of straddle-type monorail of the present invention, steel
1 plate of case, prefabricated HPC plates 2 can be used that batch production standard is quick prefabricated, greatly reduce to pour and generate a large amount of contraction fissures
Risk, eliminates the additional stress of the generation of systolic dyssynchrony between top concrete and lower part steel case 1, and 1 web of steel case does not extend
To back, HPC plates 2 not prefabricated to top generate package effect of contraction, ensure that it shrinks freely, pour wet seam 3, will be adjacent
While two prefabricated HPC plates 2 connect, wet seam 3 wraps up connecting component 4, prefabricated HPC plates 2 is connected to steel case 1, the construction
Method and step is simple, easy to operate, simplifies construction technology, shortens construction period, prefabrication, and in-site installation reduces
Influence of the situ wet operation to environment.
Embodiment 2
As shown in figs9-12, the prefabricated assembled steel-HPC combined tracks beam of a kind of straddle-type monorail of the present invention is applied
Work method, includes the following steps：
A, several vertical through holes are arranged on the prefabricated HPC plates 2 in the steel case 1 made by beam making field, prefabricated HPC plates 2
22；
B, connecting component 4 is arranged in corresponding 1 top of the steel case of each through-hole 22；
C, it hoisting prefabricated HPC plates 2 and is positioned on the steel case 1, each connecting component 4 is made to be adapted to the corresponding through-hole
22, it is corresponding 3 section of wet seam between the two neighboring prefabricated HPC plates 2, wherein each prefabricated 2 end of HPC plates
Several extension lengthways main steel bars 21 are equipped at face；
D, the extension lengthways main steel bar 21 on two neighboring prefabricated 2 end face of HPC plates corresponds to overlap joint setting；
E, all through-holes 22 and all wet seams 3 are poured, all prefabricated HPC plates 2 are connected to described
Steel case 1 forms beam body；
F, structural silicone adhesive sealed connection is filled between 1 top of all prefabricated HPC plates 2 and the steel case；
G, by 1 end part seal of steel case, confined space in steel case 1 is formed；
H, the beam body is transported to installation site and is lifted on pier stud 6.
Wherein, the length of each prefabricated HPC plates 2 is more than 8 meters, and branch is equipped between the steel case 1 and the pier stud 6
Seat.
As a preferred embodiment of the present embodiment, each through-hole 22 is close to the port of 1 top side of steel case
Less than the port of the other side, using this structure setting, through-hole 22 has upper and lower position-limiting action after pouring to prefabricated HPC plates 2.
As a preferred embodiment of the present embodiment, as shown in Figures 9 and 10, the steel case 1 includes web 11 and top plate 12,
The top plate 12 is equipped with opening 13, and the top plate 12 is made to form two structural slabs being oppositely arranged, and each structural slab connects
It is connected on the corresponding web 11, each prefabricated HPC plates 2 are respectively set along the both sides of track girder longitudinal direction described in several
Each the connecting component corresponding with the through-hole 22 4 is arranged on the structural slab in through-hole 22；Since existing steel box structure is
One sealing is whole, when top plate 12 is welded to connect web 11, can only the welding procedure on top plate 12 and 11 outside connecting line of web,
Top plate 12 is difficult to securely connect with 11 inner side connection wire of web, can using 13 this structure settings of opening are equipped on top plate 12
It constructs to the interior outside connecting line full penetration of top plate 12 and web 11, ensures welding quality, increase by 1 stable structure of steel case
Property, while rolled steel dosage has been saved, 1 dead load of steel case is alleviated, cost has been saved.
As a preferred embodiment of the present embodiment, all prefabricated HPC plates 2 are sealedly attached to the top plate 12, by
It is equipped with opening 13 in top plate 12, for the track girder of outdoor layout in operation, rainwater can be from the prefabricated HPC plates 2 and top plate
Gap between 12 enters opening 13, inside steel case 1, although and the outside of steel case 1 is equipped with anti-corrosion structure, by
In cost control, 1 inside of steel case usually lacks anti-corrosion structure, and rainwater makes the generation corrosion of 1 internal structure of steel case into membership
At destruction, 12 this structure setting of top plate is sealedly attached to using prefabricated HPC plates 2, steel case 1 and prefabricated HPC plates 2 composition one are close
Space is closed, erosion of the external environmental factor to 1 internal structure of steel case can be effectively prevent.
As a preferred embodiment of the present embodiment, it is provided on the corresponding top plate 12 at each wet seam 3
Connecting component 4, the connecting component 4 connect the corresponding wet seam 3, and a company is correspondingly provided at each wet seam 3
The both ends of fishplate bar, each connecting plate are connected on two structural slabs, and each connecting component 4 is along corresponding
Structural slab described in the connecting plate and its both ends is arranged.
Further include drip 7 as shown in figure 12 as a preferred embodiment of the present embodiment, the prefabricated HPC plates 2
Width is more than the width of the top plate 12, and prefabricated 2 two bottom sides of HPC plates stretch out the top plate 12, the prefabricated HPC plates
The drip 7 is respectively set in 2 base projections, prevents rainwater from flowing to bottom along prefabricated 2 side wall of HPC plates, then again
The top plate 12 and the web 11 of the steel case 1 are flowed to, and is piled up in prefabricated 2 He of HPC plates under tension
The intersection of the steel case 1 causes to corrode to the steel case 1.
With a kind of construction method of the prefabricated assembled steel-HPC combined tracks beam of straddle-type monorail of the present invention, steel
1 plate of case, prefabricated HPC plates 2 can be used that batch production standard is quick prefabricated, greatly reduce to pour and generate a large amount of contraction fissures
Risk, eliminates the additional stress of the generation of systolic dyssynchrony between top concrete and lower part steel case 1, and 1 web of steel case does not extend
To back, HPC plates 2 not prefabricated to top generate package effect of contraction, ensure that it shrinks freely, pour through-hole 22, interior coagulation
Soil package connecting component 4, is connected to steel case 1, the construction method step is simple, easy to operate, simplifies and applies by prefabricated HPC plates 2
Work technique, shortens construction period, prefabrication, and in-site installation reduces influence of the situ wet operation to environment.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (10)
1. a kind of construction method of the prefabricated assembled steel-HPC combined tracks beam of straddle-type monorail, which is characterized in that including following
Step：
A, steel case (1), prefabricated HPC plates (2) made by beam making field；
B, wet seam (3) section setting connecting component (4) each of at the top of the steel case (1)；
C, the prefabricated HPC plates (2) are arranged and are positioned on the steel case (1), the two neighboring prefabricated HPC plates (2) it
Between be corresponding wet seam (3) section；
D, all wet seams (3) are poured, all prefabricated HPC plates (2), which are connected to the steel case (1), forms beam body；
E, the beam body is transported to installation site and is installed on pier stud (6).
2. the construction method of track girder according to claim 1, which is characterized in that each prefabricated HPC plates (2) end face
Place will be between the two neighboring prefabricated HPC plates (2) after executing the step C equipped with several extension lengthways main steel bars (21)
The corresponding overlap joint setting of the extension lengthways main steel bar (21), then execute the step D.
3. the construction method of track girder according to claim 1, which is characterized in that each the connecting component (4) includes
Several shearing pegs, all shearing pegs that each connecting component (4) includes are along the corresponding wet seam (3)
Length direction is arranged.
4. the construction method of track girder according to claim 3, which is characterized in that all shearing pegs are welded in institute
It states on steel case (1) top.
5. according to the construction method of claim 1-4 any one of them track girders, which is characterized in that the steel case (1) includes
Web (11) and top plate (12), the top plate (12) are equipped with opening (13), so that the top plate (12) is formed two and are oppositely arranged
Structural slab, each structural slab is connected on the corresponding web (11).
6. the construction method of track girder according to claim 5, which is characterized in that all described after executing the step D
Prefabricated HPC plates (2) are sealedly attached to the top plate (12), then execute the step E.
7. the construction method of track girder according to claim 6, which is characterized in that all prefabricated HPC plates (2) and institute
It states and fills in structural silicone adhesive sealed connection between top plate (12).
8. the construction method of track girder according to claim 5, which is characterized in that corresponded at each wet seam (3)
If there are one connecting plate (5), the both ends of each connecting plate (5) are connected on two structural slabs, each described
Connecting component (4) is arranged along structural slab described in the corresponding connecting plate (5) and its both ends.
9. a kind of construction method of the prefabricated assembled steel-HPC combined tracks beam of straddle-type monorail, which is characterized in that including following
Step：
A, several vertical through holes are arranged on the prefabricated HPC plates (2) in steel case (1), prefabricated HPC plates (2) made by beam making field
(22)；
B, setting connecting component (4) at the top of the corresponding steel case (1) of each through-hole (22)；
C, the prefabricated HPC plates (2) are arranged and are positioned on the steel case (1), make each connecting component (4) adaptation pair
The through-hole (22) answered；
D, all through-holes (22) are poured, all prefabricated HPC plates (2), which are connected to the steel case (1), forms beam body；
E, the beam body is transported to installation site and is installed on pier stud (6).
10. the construction method of track girder according to claim 9, which is characterized in that the steel case (1) includes web (11)
With top plate (12), the top plate (12) is equipped with opening (13), and the top plate (12) is made to form two structural slabs being oppositely arranged,
Each structural slab is connected on the corresponding web (11), each prefabricated HPC plates (2) along track girder it is longitudinal two
Several through-holes (22) are respectively set in side, the setting connection corresponding with the through-hole (22) on each structural slab
Component (4).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810399830.4A CN108330752A (en) | 2018-04-28 | 2018-04-28 | A kind of construction method of the prefabricated assembled steel-HPC combined tracks beam of straddle-type monorail |
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| CN201810399830.4A CN108330752A (en) | 2018-04-28 | 2018-04-28 | A kind of construction method of the prefabricated assembled steel-HPC combined tracks beam of straddle-type monorail |
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| CN108330752A true CN108330752A (en) | 2018-07-27 |
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