CN109702889A - Standardize prefabricated case beam and its construction method - Google Patents
Standardize prefabricated case beam and its construction method Download PDFInfo
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- CN109702889A CN109702889A CN201811648794.7A CN201811648794A CN109702889A CN 109702889 A CN109702889 A CN 109702889A CN 201811648794 A CN201811648794 A CN 201811648794A CN 109702889 A CN109702889 A CN 109702889A
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Abstract
The present invention relates to standardization prefabricated case beams, including box beam steel reinforcement cage regularization moulding bed, system for hoisting reinforcement cage, prefabricated diaphragm plate and tensioning regularization operating platform；The box beam steel reinforcement cage regularization moulding bed includes bottom bar, bottom side lever, support rod, steel bar positioning plate and lateral bolster support；The system for hoisting reinforcement cage includes steel reinforcement cage, bottom pressure pin, side gag lever post and internal rest；The tensioning regularization operating platform includes pedestal, stretch-draw jack, safety screen, bottom support plate, hydraulic lifting bridging, hoist engine and guide rod；The prefabricated diaphragm plate includes box beam, the first diaphragm and the second diaphragm.The beneficial effects of the present invention are: rest is arranged in the present invention inside steel reinforcement cage, prevent the steel reinforcement cage in hoisting process from deforming because of inner hollow；Gag lever post is set in bottom and side, prevents reinforcing bar cage hoisting process from shaking, while preventing steel reinforcement cage during lifting from deforming under the effect of gravity.
Description
Technical field
The present invention relates to box beam field more particularly to a kind of standardization prefabricated case beam and its construction methods.
Background technique
Box beam is one of science of bridge building, and inside is hollow shape, and there are the edge of a wing in top two sides, similar chest, thus is gained the name.
With flourishing for China's transport development cause, Construction Technique of Box obtains rapid progress in constantly bringing forth new ideas.It is prefabricated at present
Box beam reinforcing bar bind, reinforcing bar lifting, prestress pipe installation, in terms of still have a little deficiency.Tradition
The pedestal of box beam assembling reinforcement can not adjust the width of box beam, a pedestal only corresponds to the size of a box beam, if in engineering
There are a variety of various sizes of box beams to need to be arranged the binding that multiple pedestals carry out reinforcing bar, had not only expended economic but also occupied space；When
Steel reinforcement cage binding after the completion of, be directly lifted to pouring area with loop wheel machine, due to steel reinforcement cage top bear pulling force, and bottom not by
Power, side easily deforms under the effect of gravity；As in terms of prestress control, steel strand wires are opened using stretch-draw jack
It draws, careless slightly that contingency will occur and since steel strand wires are in " tight " state in stretching process, other prestressing force
For pipeline not in sustained height, the height that need to repeatedly adjust stretch-draw jack is consistent with pipeline, more time-consuming.
In conclusion seeking a kind of adjustable case beam steel bar colligation width, Finalized rebar cage Lift-on/Lift-off System and fast at present
The standardization prefabricated case beam and its construction method of velocity modulation section stretch-draw jack height just seem particularly significant.
Summary of the invention
The purpose of the present invention is overcoming deficiency in the prior art, a kind of standardization prefabricated case beam and its construction party are provided
Method.
This standardization prefabricated case beam, including box beam steel reinforcement cage regularization moulding bed, system for hoisting reinforcement cage, prefabricated diaphragm plate
And tensioning regularization operating platform；
The box beam steel reinforcement cage regularization moulding bed includes bottom bar, bottom side lever, support rod, steel bar positioning plate and side
Support frame, bottom side lever and bottom bar are spliced to form a rectangular frame, are provided with bottom plate recessed joint, band on the bottom bar
The lateral bolster support and steel bar positioning plate for having base slider slide on bottom bar, and steel bar positioning plate end is equipped with protrusive board, convex
Open up the chimeric seam of reinforcing bar on plate, the reinforcing bar of box beam bottom is placed on that reinforcing bar is chimeric to be sewed on, and lateral support top of the trellis is equipped with top positioning
Bar, each independent lateral bolster support are linked together by top locating rod, support bar top be equipped with splicing bar, splicing bar and
The chimeric seam that perforation is opened up in the locating rod of top places top rebars, and splicing bar and top locating rod are connected by nuts and bolt
It connects；
The system for hoisting reinforcement cage includes steel reinforcement cage, bottom pressure pin, side gag lever post and internal rest；Steel reinforcement cage is by indulging
Muscle, lateral members, bottom member and round tube composition, are equipped with internal rest in steel reinforcement cage, the internal rest include flexible thin bar,
Bottom bar, groove, conducting wire and the pallet of top and bottom, bottom bar is interior to be equipped with groove, and groove and flexible thin bar are cooperatively connected, stretch carefully
At the top of bar and bottom bar bottom is equipped with pallet；Bottom member is placed on the pressure pin of bottom, bottom pressure pin by limit threaded rod and
Nut is combined with side gag lever post, and side gag lever post is fitted closely with steel reinforcement cage outer surface；It is set at the top of the gag lever post of side
There is hanging ring；
The tensioning regularization operating platform includes pedestal, stretch-draw jack, safety screen, bottom support plate, hydraulic liter
Bridging, hoist engine and guide rod are dropped, guide rod is equipped in pedestal, bottom support plate passes through lifting ring connection guide；Lifting ring side
For bottom support plate, the other side is lifting side plate；Bottom support plate and lifting side plate pass through the volume on traction rope and pedestal respectively
Raise machine connection；Bottom support plate outside pedestal is equipped with bottom plate, and bottom plate is equipped with stretch-draw jack, sets immediately ahead of stretch-draw jack
There is safety screen, the twisted wire perforation on stretch-draw jack and safety screen is located at sustained height with twisted wire；Bottom support plate bottom
Equipped with hydraulic lifting bridging, hydraulic lifting bridging bottom is bridging bottom plate, is equipped with ten thousand below pedestal and bridging bottom plate
To wheel；
The prefabricated diaphragm plate includes box beam, the first diaphragm and the second diaphragm；Box beam two sides are respectively the first tabula
Plate and the second diaphragm plate, the first diaphragm plate and the second diaphragm plate of two sides are by Screw arbor with nut at both-ends to drawing；First diaphragm plate and second
Protrusion on diaphragm plate is mutually matched, and the splicing hole of perforation is offered in protrusion；Adjacent the first diaphragm plate and the second diaphragm plate
Protrusion mutually splice and be connected and fixed by screw rod and nut, the first diaphragm plate and the second diaphragm plate are formed between two box beams
Complete diaphragm plate together.
As preferred: the lateral bolster support is equipped with round tube fixed hook, and adjacent round tube fixed hook interval two
The setting of root lateral support frame.
As preferred: being provided with matching nut on the splicing bar and top locating rod, splice bar and top is fixed
It is interconnected between nut on the bar of position and passes through bolt and be fixedly connected with support rod and lateral bolster support.
As preferred: the support rod bottom is equipped with bar foot.
As preferred: the bottom end and top of the side gag lever post offer the limit hole bigger than limit screw thread shank diameter,
Gasket is equipped between side gag lever post and nut.
As preferred: the splicing hole is formed together by whole pour of splicing round tube and concrete, is spliced inside and outside round tube
It is respectively equipped with internal screw thread and external screw thread.
As preferred: the safety screen is fixed in the fixed plate on bottom plate by screw rod.
The construction method of this standardization prefabricated case beam, comprising the following steps:
1) lateral bolster support and steel bar positioning plate are adjusted；Lateral bolster support and reinforcing bar positioning are adjusted by slideable base sliding block
Then the top locating rod of the splicing bar of support bar top and lateral bolster support top is fixed together by plate, make support rod with
Lateral bolster support is fixed into an entirety；
2) steel reinforcement cage is bound；Steel reinforcement cage includes two parts: a part is steel hoop identical with box section, another portion
It is divided into common vertical muscle；Steel hoop includes three parts: the bottom reinforcement bars being placed on steel bar positioning plate respectively are placed on lateral bolster
Side reinforcing bar on support and the top rebars being placed in the locating rod of top；Before binding longitudinal reinforcement, in lateral bolster support
On round tube fixed hook on place round tube, after box beam is whole pour after the completion of bellows is placed in round tube；
3) reinforcing bar cage hoisting；Side gag lever post is fixed on the pressure pin of bottom using gasket and nut, bottom pressure pin is placed on
Steel reinforcement cage bottom, side gag lever post are close to surface of reinforcing cage；Then internal rest is placed inside steel reinforcement cage, is connected by conducting wire
External power supply controls the length of flexible thin bar, is close to the pallet at top at the top of steel reinforcement cage；It then will be on suspender using suspender
Suspension hook hooks hanging ring, and lifting suspension hook can be by reinforcing bar cage hoisting to other places；
4) diaphragm plate is prefabricated；After reinforcing bar cage hoisting is good, concreting is carried out, tabula is set in box beam end before pouring
Plate；The binding that diaphragm plate reinforcing bar is carried out on the basis of the steel reinforcement cage bound, is then arranged template, template is adopted outside steel reinforcement cage
Be fixed with Screw arbor with nut at both-ends, the protrusion on diaphragm plate is provided with splicing hole, splicing hole by splicing round tube with concrete is whole pours
It forms；
5) steel strand tension；In bellows interior tension steel strand, tension operation platform is pushed, platform is made to rest in box beam
Then front adjusts hoist engine and hydraulic lifting bridging, before so that the stretch-draw jack on operating platform is located at steel strand wires just
Just and it is in sustained height；Then the tensioning of steel strand wires is carried out；After the completion of tensioning Mobile operating platform and adjust height, carry out down
The tensioning of steel strand wires at one.
The beneficial effects of the present invention are:
(1) steel reinforcement cage moulding bed of the invention can adjust the width of lateral bolster support by sliding slider on bottom bar, most
The purpose of regulating box beam steel cage width is played eventually.
(2) rest is arranged in the present invention inside steel reinforcement cage, prevents the steel reinforcement cage in hoisting process from occurring because of inner hollow
Deformation；Gag lever post is set in bottom and side, prevents reinforcing bar cage hoisting process from shaking, while preventing reinforcing bar during lifting
Cage deforms under the effect of gravity.
(3) tension operation platform of the invention can be adjusted quickly by hoist engine and hydraulic lifting bridging collective effect
The height of stretch-draw jack, and the universal wheel of operating platform bottom can make it quickly reach any position.
(4) prefabricated diaphragm plate band splicing hole of the invention and protrusion is mutually chimeric, screw rod is passed through splicing hole can be quick
Splicing.
Detailed description of the invention
Fig. 1 is the construction process figure for standardizing prefabricated case beam；
Fig. 2 is the box beam steel reinforcement cage regularization moulding bed top view in Fig. 1；
Fig. 3 is the box beam steel reinforcement cage regularization moulding bed front view in Fig. 2；
Fig. 4 is the lateral bolster support schematic diagram in Fig. 2；
Fig. 5 is the support rod schematic diagram in Fig. 2；
Fig. 6 is the steel bar positioning plate schematic diagram in Fig. 2；
Fig. 7 is the system for hoisting reinforcement cage top view in Fig. 1；
Fig. 8 is the system for hoisting reinforcement cage front view in Fig. 7；
Fig. 9 is the side gag lever post side view in Fig. 7；
Figure 10 is the prefabricated diaphragm plate schematic diagram in Fig. 1；
Figure 11 is the diaphragm plate splicing schematic diagram in Figure 10；
Figure 12 is the first diaphragm and the second diaphragm schematic diagram in Figure 10；
Figure 13 is the splicing round tube schematic diagram in Figure 10；
Figure 14 is the tensioning regularization operating platform top view in Fig. 1；
Figure 15 is the tensioning regularization operating platform front view in Figure 14.
Description of symbols: 1-splicing bar；2-bottom plate recessed joints；3-lateral bolster supports；4-round tube fixed hooks；5—
Base slider；6-steel bar positioning plates；The chimeric seam of 7-reinforcing bars；8-bottom side levers；9-bottom bars；10-top locating rods；
11-protrusive boards；12-support rods；13-bar feet；14-nuts；15-bolts；16-vertical muscle；17-lateral members；18-bottoms
Component；19-round tubes；20-bottom rests；21-limit threaded rods；22-gaskets；23-limit holes；24-side gag lever posts；
25-flexible thin bars；26-bottom bars；27-grooves；28-conducting wires；29-internal rests；30-hanging rings；31-suspension hooks；32-hang
Rope；33-box beams；34-the first diaphragm plate；35-the second diaphragm plate；36-protrusions；37-external screw threads；38-Screw arbor with nut at both-ends；
39-screw rods；40-internal screw threads；41-splicing holes；42-splicing round tubes；43-stretch-draw jacks；44-bottom plates；45-pedestals；
46-universal wheels；47-guide rods；48-hoist engines；49-traction ropes；50-lifting rings；51-lifting side plates；52-safety catch
Plate；53-hydraulic lifting bridgings；54-bridging bottom plates；The perforation of 55-twisted wires；56-twisted wires；57-fixed plates；58-bottoms
Portion's support plate.
Specific embodiment
The present invention is described further below with reference to embodiment.The explanation of following embodiments is merely used to help understand this
Invention.It should be pointed out that for those skilled in the art, without departing from the principle of the present invention, also
Can be with several improvements and modifications are made to the present invention, these improvement and modification also fall into the protection scope of the claims in the present invention
It is interior.
The standardization prefabricated case beam, including box beam steel reinforcement cage regularization moulding bed, system for hoisting reinforcement cage, prefabricated tabula
Plate and tensioning regularization operating platform.
The box beam steel reinforcement cage regularization moulding bed includes bottom bar 9, bottom side lever 8, support rod 12, steel bar positioning plate 6
With lateral bolster support 3, bottom side lever 8 and bottom bar 9 are spliced to form a rectangular frame, are provided on the bottom bar 9
Bottom plate recessed joint 2, lateral bolster support 3 and steel bar positioning plate 6 with base slider 5 slide on bottom bar 9, steel bar positioning plate
6 ends are equipped with protrusive board 11, and the chimeric seam 7 of reinforcing bar is opened up on protrusive board 11, and the reinforcing bar of box beam bottom is placed on the chimeric seam 7 of reinforcing bar, side
Top locating rod 10 is equipped at the top of support frame 3, each independent lateral bolster support 3 is linked together by top locating rod 10,
It is equipped with splicing bar 1 at the top of support rod 12, splices the chimeric seam placement top steel for opening up perforation in bar 1 and top locating rod 10
Muscle, splicing bar 1 are connect with top locating rod 10 by nut 14 and bolt 15.
The system for hoisting reinforcement cage includes steel reinforcement cage, bottom pressure pin 20, side gag lever post 24 and internal rest 29；Reinforcing bar
Cage is made of vertical muscle 16, lateral members 17, bottom member 18 and round tube 19, and internal rest 29, the inside are equipped in steel reinforcement cage
Rest 29 includes flexible thin bar 25, bottom bar 26, groove 27, conducting wire 28 and the pallet of top and bottom, is equipped with groove in bottom bar 26
27, groove 27 and flexible thin bar 25 are cooperatively connected, and flexible 25 top of thin bar and 26 bottom of bottom bar are equipped with pallet；Bottom member 18
It is placed on bottom pressure pin 20, bottom pressure pin 20 is combined with side gag lever post 24 one by limit threaded rod 21 and nut 14
It rises, side gag lever post 24 is fitted closely with steel reinforcement cage outer surface；Hanging ring 30 is equipped at the top of side gag lever post 24.
The tensioning regularization operating platform includes pedestal 45, stretch-draw jack 43, safety screen 52, bottom support plate
58, hydraulic lifting bridging 53, hoist engine 48 and guide rod 47, pedestal 45 is interior to be equipped with guide rod 47, and bottom support plate 58 passes through lifting
50 connection guide 47 of ring；50 side of lifting ring is bottom support plate 58, and the other side is lifting side plate 51；Bottom support plate 58 and liter
Drop side plate 51 is connect by traction rope 49 with the hoist engine 48 on pedestal 45 respectively；Bottom support plate 58 outside pedestal 45 is equipped with
Bottom plate 44, bottom plate 44 are equipped with stretch-draw jack 43, are equipped with safety screen 52, stretch-draw jack 43 immediately ahead of stretch-draw jack 43
It is located at sustained height with twisted wire 56 with the twisted wire perforation 55 on safety screen 52；It is cut equipped with hydraulic lifting support plate 58 bottom in bottom
Knife support 53,53 bottom of hydraulic lifting bridging are bridging bottom plate 54, are equipped with universal wheel below pedestal 45 and bridging bottom plate 54
46；It pulls traction rope 49 that bottom support plate 58 is driven to go up and down by hoist engine 48, and then makes the bottom plate 44 on bottom support plate 58
The tensioning that arbitrary height carries out twisted wire 56 can be reached with stretch-draw jack 43, in addition hydraulic lifting scissors is set under bottom plate 44
Support 53 and 48 collective effect of hoist engine, reduce the load of hoist engine, improve construction efficiency, and universal wheel is arranged in operating platform bottom
46, improve the mobility of operating platform.Stretching process bring unexpected injury can be effectively reduced in safety screen 52.
The prefabricated diaphragm plate includes box beam 33, the first diaphragm plate 34 and the second diaphragm plate 35；33 two sides of box beam are respectively
First diaphragm plate 34 and the second diaphragm plate 35, the first diaphragm plate 34 and the second diaphragm plate 35 of two sides are right by Screw arbor with nut at both-ends 38
It draws；First diaphragm plate 34 is mutually matched with the protrusion 36 on the second diaphragm plate 35, and the splicing hole 41 of perforation is offered in protrusion 36；
The protrusion 36 of the first adjacent diaphragm plate 34 and the second diaphragm plate 35 is mutually spliced and is connected and fixed by screw rod 39 and nut 14,
First diaphragm plate 34 and the second diaphragm plate 35 form complete diaphragm plate together between two box beams 33.
The lateral bolster support 3 is equipped with round tube fixed hook 4, and adjacent round tube fixed hook 4 is spaced two sides
Support frame 3 is arranged.
It is provided with matching nut 14 on the splicing bar 1 and top locating rod 10, splices bar 1 and top locating rod
It is interconnected between nut 14 on 10 and passes through bolt 15 and be fixedly connected with support rod 12 and lateral bolster support 3.
12 bottom of support rod is equipped with bar foot 13.
The bottom end and top of the side gag lever post 24 offer the limit hole 23 bigger than limit 21 diameter of threaded rod, side
Gasket 22 is equipped between gag lever post 24 and nut 14.
The splicing hole 41 is formed together by whole pour of splicing round tube 42 and concrete, and splicing round tube 42 is inside and outside respectively
Equipped with internal screw thread 40 and external screw thread 37.
The safety screen 52 is fixed in the fixed plate 57 on bottom plate 44 by screw rod 39.
The construction method of the standardization prefabricated case beam, comprising the following steps:
(1) lateral bolster support 3 and steel bar positioning plate 6 are adjusted.Lateral bolster support 3 and steel are adjusted by slideable base sliding block 5
Then the top locating rod 10 of the splicing bar 1 at 12 top of support rod and 3 top of lateral bolster support is fixed on one by muscle positioning plate 6
It rises, so that support rod 12 and lateral bolster support 3 is fixed into an entirety, prevent in the construction process because 3 side of lateral bolster support does not have
There is support and deforms.
(2) steel reinforcement cage is bound.Steel reinforcement cage includes two parts, and a part is steel hoop similar with box section, another
Part is common vertical muscle.Steel hoop includes three parts, and the bottom reinforcement bars being placed on steel bar positioning plate 6 respectively are placed on side
Side reinforcing bar on face support frame 3 and the top rebars being placed in the locating rod 10 of top.The effect of these reinforcing bars and binding column steel
Stirrup in muscle is similar.Due to the effect of the chimeric seam on moulding bed, steel hoop will not be subjected to displacement in process of binding, can
Efficiently to bind longitudinal reinforcement on it.It, need to be in the round tube fixed hook on lateral bolster support 3 before binding longitudinal reinforcement
Round tube is placed on 4, after box beam is whole pour after the completion of bellows is placed in round tube.
(3) reinforcing bar cage hoisting.Side gag lever post 24 is fixed on bottom pressure pin 20 using gasket 22 and nut 14, bottom
Pressure pin 20 is placed on steel reinforcement cage bottom, and side gag lever post 24 is close to surface of reinforcing cage；Then internal rest is placed inside steel reinforcement cage
29, external power supply is connected by conducting wire 28, controls the length of flexible thin bar 25, is close to the pallet at top at the top of steel reinforcement cage, prevents
Only steel reinforcement cage deforms because of inner hollow in hoisting process.Then the suspension hook 31 on suspender is hooked into hanging ring using suspender
30, lifting suspension hook 31 can be by reinforcing bar cage hoisting to other places.
(4) diaphragm plate is prefabricated.After reinforcing bar cage hoisting is good, concreting need to be carried out, it need to be in 33 end of box beam before pouring
Diaphragm plate (if box beam length is too long, diaphragm plate can also be arranged at middle part) is set.On the basis of the steel reinforcement cage bound into
The binding of row diaphragm plate reinforcing bar, is then arranged template outside steel reinforcement cage, and template is fixed using Screw arbor with nut at both-ends 38, be should be noted
That protrusion 36 on diaphragm plate is provided with splicing hole 41, splicing hole 41 by splicing round tube 42 with concrete is whole pours, external screw thread
37 are used to improve the chimeric degree with concrete, and internal screw thread 40 matches with splicing screw rod 39.
(5) steel strand tension.In bellows interior tension steel strand, tension operation platform is pushed, platform is made to rest in case
Immediately ahead of beam, hoist engine 48 and hydraulic lifting bridging 53 are then adjusted, the stretch-draw jack 43 on operating platform is made to be located at steel
Immediately ahead of twisted wire and it is in sustained height.Then the tensioning of steel strand wires is carried out.Mobile operating platform and height is adjusted after the completion of tensioning
Degree, carries out the tensioning of next place's steel strand wires.
Claims (8)
1. a kind of standardization prefabricated case beam, which is characterized in that including box beam steel reinforcement cage regularization moulding bed, system for hoisting reinforcement cage,
Prefabricated diaphragm plate and tensioning regularization operating platform；
The box beam steel reinforcement cage regularization moulding bed includes bottom bar (9), bottom side lever (8), support rod (12), steel bar positioning plate
(6) and lateral bolster support (3), bottom side lever (8) and bottom bar (9) are spliced to form a rectangular frame, the bottom bar
(9) bottom plate recessed joint (2) are provided on, lateral bolster support (3) and steel bar positioning plate (6) with base slider (5) are in bottom transverse
Bar slides on (9), and steel bar positioning plate (6) end is equipped with protrusive board (11), and the chimeric seam (7) of reinforcing bar, box beam bottom are opened up on protrusive board (11)
The reinforcing bar in portion is placed on the chimeric seam (7) of reinforcing bar, is equipped with top locating rod (10) at the top of lateral bolster support (3), each independent side
Face support frame (3) is linked together by top locating rod (10), and splicing bar (1) is equipped at the top of support rod (12), is spliced bar (1)
Top rebars are placed with the chimeric seam for opening up perforation on top locating rod (10), splicing bar (1) and top locating rod (10) are logical
Cross nut (14) and bolt (15) connection；
The system for hoisting reinforcement cage includes steel reinforcement cage, bottom pressure pin (20), side gag lever post (24) and internal rest (29)；Steel
Muscle cage is made of vertical muscle (16), lateral members (17), bottom member (18) and round tube (19), and internal rest is equipped in steel reinforcement cage
(29), the internal rest (29) includes flexible thin bar (25), bottom bar (26), groove (27), conducting wire (28) and top and bottom
Pallet, be equipped with groove (27) in bottom bar (26), groove (27) and flexible thin bar (25) are cooperatively connected, and stretch at the top of thin bar (25)
Pallet is equipped with bottom bar (26) bottom；Bottom member (18) is placed on bottom pressure pin (20), and bottom pressure pin (20) passes through limit
Position threaded rod (21) and nut (14) are combined with side gag lever post (24), side gag lever post (24) and steel reinforcement cage outer surface
It fits closely；Hanging ring (30) are equipped at the top of side gag lever post (24)；
The tensioning regularization operating platform includes pedestal (45), stretch-draw jack (43), safety screen (52), bottom support plate
(58), hydraulic lifting bridging (53), hoist engine (48) and guide rod (47), pedestal (45) is interior to be equipped with guide rod (47), bottom rest
Plate (58) passes through lifting ring (50) connection guide (47)；Lifting ring (50) side is bottom support plate (58), and the other side is lifting
Side plate (51)；Bottom support plate (58) and lifting side plate (51) pass through the hoist engine on traction rope (49) and pedestal (45) respectively
(48) it connects；The bottom support plate (58) of pedestal (45) outside is equipped with bottom plate (44), and bottom plate (44) is equipped with stretch-draw jack
(43), safety screen (52) are equipped with immediately ahead of stretch-draw jack (43), the strand on stretch-draw jack (43) and safety screen (52)
Line perforation (55) and twisted wire (56) is located at sustained height；Support plate (58) bottom in bottom is equipped with hydraulic lifting bridging (53), liquid
Pressure lifting bridging (53) bottom is bridging bottom plate (54), is equipped with universal wheel below pedestal (45) and bridging bottom plate (54)
(46)；
The prefabricated diaphragm plate includes box beam (33), the first diaphragm plate (34) and the second diaphragm plate (35)；Box beam (33) two sides point
Not Wei the first diaphragm plate (34) and the second diaphragm plate (35), the first diaphragm plates (34) of two sides and the second diaphragm plate (35) by pair
Draw screw rod (38) to drawing；First diaphragm plate (34) is mutually matched with the protrusion (36) on the second diaphragm plate (35), on raised (36)
Offer the splicing hole (41) of perforation；The protrusion (36) of adjacent the first diaphragm plate (34) and the second diaphragm plate (35) is mutually spliced
And be connected and fixed by screw rod (39) and nut (14), the first diaphragm plate (34) and the second diaphragm plate (35) two box beams (33) it
Between formed together complete diaphragm plate.
2. standardization prefabricated case beam according to claim 1, which is characterized in that the lateral bolster support (3) is equipped with circle
Pipe fixed hook (4), and adjacent round tube fixed hook (4) is spaced two lateral bolster support (3) settings.
3. standardization prefabricated case beam according to claim 1, which is characterized in that the splicing bar (1) and top locating rod
(10) it is provided with matching on nut (14), splices phase mutual connection between the nut (14) in bar (1) and top locating rod (10)
It is combined through bolt (15) and is fixedly connected with support rod (12) and lateral bolster support (3).
4. standardization prefabricated case beam according to claim 1, which is characterized in that support rod (12) bottom is equipped with bar foot
(13)。
5. standardization prefabricated case beam according to claim 1, which is characterized in that the bottom end of the side gag lever post (24) with
Top offers the limit hole (23) bigger than limit threaded rod (21) diameter, is equipped between side gag lever post (24) and nut (14)
Gasket (22).
6. standardization prefabricated case beam according to claim 1, which is characterized in that the splicing hole (41) passes through splicing round tube
(42) with whole pour together of concrete and is formed, splicing round tube (42) inside and outside is respectively equipped with internal screw thread (40) and external screw thread (37).
7. standardization prefabricated case beam according to claim 1, which is characterized in that the safety screen (52) passes through screw rod
(39) it is fixed in the fixed plate (57) on bottom plate (44).
8. a kind of construction method of standardization prefabricated case beam as described in claim 1, which comprises the following steps:
1) lateral bolster support (3) and steel bar positioning plate (6) are adjusted；By slideable base sliding block (5) adjust lateral bolster support (3) and
Steel bar positioning plate (6), then by the top locating rod of splicing bar (1) and lateral bolster support (3) top at the top of support rod (12)
(10) it is fixed together, support rod (12) and lateral bolster support (3) is made to be fixed into an entirety；
2) steel reinforcement cage is bound；Steel reinforcement cage includes two parts: a part is steel hoop identical with box section, and another part is
Common vertical muscle；Steel hoop includes three parts: the bottom reinforcement bars being placed on steel bar positioning plate (6) respectively are placed on lateral bolster
Side reinforcing bar on support (3) and the top rebars being placed in top locating rod (10)；Before binding longitudinal reinforcement, in side
Place round tube on round tube fixed hook (4) on support frame (3), after box beam is whole pour after the completion of bellows is placed in round tube；
3) reinforcing bar cage hoisting；Side gag lever post (24) is fixed on bottom pressure pin (20) using gasket (22) and nut (14),
Bottom pressure pin (20) is placed on steel reinforcement cage bottom, and side gag lever post (24) is close to surface of reinforcing cage；Then it is placed inside steel reinforcement cage
Internal rest (29) connects external power supply by conducting wire (28), controls the length of flexible thin bar (25), is close to the pallet at top
At the top of steel reinforcement cage；Then the suspension hook (31) on suspender is hooked hanging ring (30) using suspender, lifting suspension hook (31) can be by reinforcing bar
Cage is lifted to other places；
4) diaphragm plate is prefabricated；After reinforcing bar cage hoisting is good, concreting is carried out, tabula is set in box beam (33) end before pouring
Plate；The binding that diaphragm plate reinforcing bar is carried out on the basis of the steel reinforcement cage bound, is then arranged template, template is adopted outside steel reinforcement cage
It is fixed with Screw arbor with nut at both-ends (38), the protrusion (36) on diaphragm plate is provided with splicing hole (41), splices hole (41) by splicing
Round tube (42) with concrete is whole pours；
5) steel strand tension；In bellows interior tension steel strand, tension operation platform is pushed, before so that platform is rested in box beam just
Then side adjusts hoist engine (48) and hydraulic lifting bridging (53), the stretch-draw jack (43) on operating platform is made to be located at steel
Immediately ahead of twisted wire and it is in sustained height；Then the tensioning of steel strand wires is carried out；Mobile operating platform and height is adjusted after the completion of tensioning
Degree, carries out the tensioning of next place's steel strand wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811648794.7A CN109702889A (en) | 2018-12-30 | 2018-12-30 | Standardize prefabricated case beam and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811648794.7A CN109702889A (en) | 2018-12-30 | 2018-12-30 | Standardize prefabricated case beam and its construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109702889A true CN109702889A (en) | 2019-05-03 |
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| CN111455851A (en) * | 2020-04-01 | 2020-07-28 | 冉光全 | Temporary prestressing device for segmental prefabricated assembled beam |
| CN111877138A (en) * | 2020-08-10 | 2020-11-03 | 漯河市公路事业发展中心 | Adjustable high-rigidity diaphragm plate device |
| CN112847775A (en) * | 2021-03-01 | 2021-05-28 | 中铁二十三局集团第四工程有限公司 | Be used for prefabricated reinforcement bed-jig of component |
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